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Review of Plant Studies

June 2014, Volume 1, 1, pp 10-25

Review: Plant Resistance to Agriculture Insect Pests

Sawsan Sabry Moawad

Sawsan Sabry Moawad 1

  1. Pests and Plant Protection Department, National Research Center, Cairo, Egypt 1

on Google Scholar
on PubMed

Pages: 10-25

DOI: 10.18488/journal.69/2014.1.1/

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 Competition and interaction among organisms in nature results to selection for traits which confer added advantage. As a result of such interactions between plants and their natural enemies, plants have developed defensive mechanisms, both chemical and physical, to minimize pest damage. 
Intensive researches were carried out to identify and isolation the gene responsible for resistance plant to insects’ infestation which is used in breeding programs for crops improvement. It can be summarized as follows: 
1-  Corn ear worm, Helicoverpa zea (Boddie) can’t cause damage to certain corn strain due to maysin, a C-glycosyl flavone, and related compounds in the silks that inhibit corn earworm larval growth. Scientist can identify corn chromosome regions associated with silk maysin concentration, and then used it in producing new hybrid.
2- Other insect such as the fall army worm, Spodoptera frugiperda can’t cause damage to resistance corn due to some factors as high hemicelluloses content, low protein content and leaf toughness. They can also identify a gene code which is controlled by the resistance traits of corn to the fall army worm. 
3- However, the European corn borer, Ostrinia nubilalis (Hubner) can’t cause damage to certain corn varieties due to high concentrations of 2,4-dihydroxy-7- methoxy-1,4-benzoxazin-3-one (DIMBOA) in the leaves of mid-whorl stage plants. Scientist indicated that resistance to the European corn borer was identified in Peruvian corn germplasm and the GEM (Germplasm Enhancement of Maize) corn collection, then make backcross to produce new resistance strain. 
4- Other crops as tomato infested by Tuta absoluta  (Meyrick ( but some tomato varieties as Lycopersicon esculentum can resist it due to antixenosis factor which interrupted tomato leaf miner from feed, oviposition and shelter . 
5- Russian wheat aphid, Diuraphis noxia (Mordvilko), can’t cause damage to some wheat and barley and others crop due to antibiosis and antixenosis factors. Six sources of resistant wheat, each governed by a different, single gene, have been identified.
6- Two-spotted spider mites, Tetranychus urticae (Acari: Tetranychidae) and Whiteflies, Bemisia tabaci (Hemiptera: Aleyrodidae) are herbivorous pests. Additional whitefly infestation to spider-mite infested plants resulted in a reduced attraction of predatory mites (Phytoseiulus persimilis). This interference was shown to result from the reduction in (E)-β-ocimene emission from plantsinfested by both spider mites and whiteflies.
7- Transgenic crops expressing a protein from the bacterium Bacillus thuringiensis Berliner (Bt) were carried out into potato, maize, cotton and soybean to be reduced their insect infestation.

Contribution/ Originality
This study contributes in the existing literature which interested to study factors of plant resistance to agriculture insect pests and its’ role to improve new plant strains.



  1. R. H. Painter, Insect resistance in crop plants. New York: MacMillan, 1951.
  2. S. D. Beck, "Resistance of plants to insects," Ann. Rev. Ent., vol. 10, pp. 207-232, 1965.
  3. J. R. Dogoer and C. H. Hanson, "Reaction of alfalfa varieties and strains to alfalfa weevil," J. Econ. Entomol., vol. 56, pp. 19-27, 1963.
  4. H. Doggett, K. J. Arks, and A. Eberharts, "Breeding for resistance to the sorghum shoot fly," Crop Sci., vol. 10, pp. 528-531, 1970.
  5. K. J. Frey, "Improving crop yields through plant breeding," Am. Soc. Agron. Spec. Publ., vol. 20, pp. 15–58, 1971.
  6. D. N. Duvick, "Plant breeding: Past achievements and expectations for the future," Econ. Bot., vol. 40, pp. 289–297, 1986.
  7. D. Charles and B. Wilcox, Lords of the harvest: Biotechnology, big money and the future of food. Cambridge, MA: Perseus Publishing, 2002.
  8. G. Acquaah, Principal of plant genetics and breeding: Black Well Publisher, 2007.
  9. O. E. Krips, P. E. L. Willems, and M. Dicke, "Compatibility of host plant resistance and biological control of the two-spotted spider mite tetranychus urticaein the ornamental crop gerbera," Biol. Cont., vol. 16, pp. 155-163, 1999.
  10. S. D. Eigenbrode and N. N. Kabalo, "Effects of brassica oleracea wax blooms on predation and attachment by hippodamia convergens," Entomol. Exp. Appl., vol. 91, pp. 125-130, 1999.
  11. A. A. Agrawal, R. Karban, and R. Colfer, "How leaf domatia and induced resistance affect herbivores, natural enemies and plant performance?," Oikos, vol. 89, pp. 70-80, 2000.
  12. A. A. Agrawal, "Induced responses to herbivory and increased plan performance," Science, vol. 279, pp. 1201-1202, 1998.
  13. J. A. Gatehouse, "Plant resistance towards insect herbivores: A dynamic interaction," New Phytologist, vol. 156, pp. 145–169, 2002.
  14. J. S. Thaler, "Jasmonate-inducible plant defenses cause increased parasitism of herbivores. Mechanisms of induced defenses to ecological interactions in the field," Nature, vol. 399, pp. 686-688, 1999.
  15. A. A. Agrawal, S. Tuzun, and E. Bent, Induced plant defenses against pathogens and herbivores: Biochemistry, ecology, and agriculture. St. Paul, Minnesota: American Phytopathological Society Press, 1999.
  16. N. W. Widstrom and M. E. Snook, "Registration of EPM6 and SIM6 maize germplasm, high silk-maysin sources of resistance to corn earworm," Crop Sci., vol. 41, pp. 2009–2010, 2001.
  17. P. F. Byrne, M. D. McMullen, M. E. Snook, T. A. Musket, J. M. Theuri, N. W. Widstrom, B. R. Wiseman, and E. H. Coe, "Quantitative trait loci and metabolic pathways: Genetic control of the concentration of maysin, a corn earworm resistance factor, in maize silks," in Proc. Natl. Acad. Sci, USA, 1996, pp. 8820–8825.
  18. B. Z. Guo, N. W. Widstrom, B. R. Wiseman, M. E. Snook, R. E. Lynch, and D. Plaisted, "Comparison of silk maysin, antibiosis to corn earworm larvae (Lepidoptera: Noctuidae), and silk browning in crosses of dent × sweet corn," J. Econ. Entomol., vol. 92, pp. 746–753, 1999.
  19. B. R. Wiseman and J. E. Carpenter, "Growth inhibition of corn earworm (Lepidoptera: Noctuidae) larvae reared on resistant corn silk diets," J. Econ. Entomol., vol. 88, pp. 1037–1043, 1995.
  20. P. F. Byrne, M. D. McMullen, B. R. Wiseman, M. E. Snook, T. A. Musket, J. M. Theuri, N. W. Widstrom, and E. H. Coe, "Maize silk maysin concentration and corn earworm antibiosis: QTLs and genetic mechanisms," Crop Sci., vol. 38, pp. 461–471, 1998.
  21. M. D. McMullen, M. E. Snook, E. A. Lee, P. F. Byrne, H. Kross, T. A. Musket, K. Houchins, and E. H. Coe, "The biological basis of epistasis between quantitative trait loci for flavones and 3-deoxyanthocyanin synthesis in maize (Zea Mays L)," Genome, vol. 44, pp. 667–676, 2001.
  22. E. A. Lee, P. F. Byrne, M. D. McMullen, M. E. Snook, B. R. Wiseman, N. W. Widstrom, and E. H. Coe, "Genetic mechanisms underlying apimaysin and maysin synthesis and corn earworm antibiosis in maize (Zea Mays L)," Genet., vol. 149, pp. 1997–2006, 1998.
  23. B. Z. Guo, Z. J. Zhang, A. Butr ´on, N. W. Widstrom, M. E. Snook, R. E. Lynch, and D. Plaisted, "Quantitative effects of loci p1 and a1 on the concentrations of maysin, apimaysin, methoxymaysin, and chlorogenic acid in maize silk tissue," Maize Genet. Newslett., vol. 75, pp. 64–66, 2001a.
  24. B. Z. Guo, Z. J. Zhang, R. G. Li, N. W. Widstrom, M. E. Snook, R. E. Lynch, and D. Plaisted, "Restriction fragment length polymorphism markers associated with silk maysin, antibiosis to corn earworm (Lepidoptera: Noctuidae) larvae, in a dent and sweet corn cross," J. Econ. Entomol., vol. 94, pp. 564–571, 2001b.
  25. A. Butr´on, B. Z. Guo, N. W. Widstrom, M. E. Snook, and R. E. Lynch, "Use of markers for maize silk antibiotic polyphenol compounds to improve resistance to corn earworm," Recent Res. Devel Agric. Food Chem., vol. 4, pp. 193–201, 2000.
  26. A. Butr´on, R. G. Li, B. Z. Guo, N. W. Widstrom, M. E. Snook, T. E. Cleveland, L. S. Boiteux, J. G. Belter, P. A. Roberts, and P. W. Simon, "Molecular markers to increase corn earworm resistance in a maize population," Maydica, vol. 46, pp. 117–124, 2001.
  27. W. P. Williams, F. M. Davis, and G. E. Scott, "Resistance of corn to leaf-feeding damage by the fall armyworm," Crop Sci., vol. 18, pp. 861–863, 1978.
  28. G. E. Scott and F. M. Davis, "Registration of MpSWCB-4 population of maize," Crop Sci., vol. 21, p. 148, 1981.
  29. W. P. Williams, P. M. Buckley, J. B. Sagers, and J. A. Hanten, "Evaluation of transgenic corn for resistance to corn earworm (Lepidoptera: Noctuidae), fall armyworm (Lepidoptera: Noctuidae), and Southwestern corn borer (Lepidoptera: Crambidae) in a laboratory bioassay," J. Agric. Entomol., vol. 15, pp. 105–112, 1998a.
  30. W. P. Williams, F. M. Davis, P. M. Buckley, P. A. Hedin, G. T. Baker, and D. S. Luthe, "Factors associated with resistance to fall armyworm (Lepidoptera: Noctuidae) and Southwestern corn borer (Lepidoptera: Crambidae) in corn at different vegetable stages," J. Econ. Entomol., vol. 91, pp. 1471–1480, 1998b.
  31. T. Pechan, L. L. Ye, Y. M. Chang, A. Mitra, L. Lin, F. M. Davis, W. P. Williams, D. S. Luthe, and A. Unique, "33-kD cysteine proteinase accumulates in response to larval feeding in maize genotypes resistant to fall armyworm and other lepidoptera," Plant Cell, vol. 12, pp. 1031–1040, 2000.
  32. B. D. Barry, B. R. Wiseman, F. M. Davis, J. A. Mihm, and J. L. Overman, Benefits of insect-resistant maize. Pp.59-85. In B.R. Wiseman and J.A. Webster (Eds.). Economic, environmental, and social benefits of resistance in field crops: Thomas Say Publications, 1999.
  33. W. D. Guthrie and F. F. Dicke, "Resistance of inbred lines of dent corn to leaf feeding by first-brood European corn borers," IWA State J. Sci., vol. 46, pp. 339–357, 1972.
  34. J. A. Klun and T. A. Brindley, "Role of 6-methoxybenzoxazolinone in inbred resistance of host plant (Maize) to first brood larvae of the European corn borer," J. Econ. Entomol., vol. 59, pp. 711–7182, 1966.
  35. C. A. Abel, M. A. Berhow, R. L. Wilson, B. F. Binder, and B. E. Hibbard, "Evaluation of conventional resistance to European corn borer (Lepidoptera: Crambidae) and Western corn rootworm (Coleoptera: Chrysomelidae) in experimental maize lines developed from a backcross breeding program," J. Econ. Entomol., vol. 93, pp. 1814–1821, 2000a.
  36. C. A. Abel, L. M. Pollack, W. Salhuana, M. P. Widrechner, and R. L. Wilson, "Registration of GEMS-0001 maize germplasm resistant to leaf blade, leaf sheath, and collar feeding by European corn borer," Crop Sci., vol. 41, pp. 1651–1652, 2001.
  37. C. A. Abel and R. L. Wilson, "Evaluation of 11 maize populations from Peru for mechanisms of resistance to leaf feeding by the European corn borer," J. K.S. Entomol. Soc., vol. 72, pp. 149–159, 1999.
  38. C. A. Abel, R. L. Wilson, B. R. Wiseman, W. H. White, and F. M. Davis, "Conventional resistance of experimental maize lines to corn earworm (Lepidoptera: Noctuidae), fall armyworm (Lepidoptera: Noctuidae), South Western corn borer (Lepidoptera: Crambidae), and sugarcane borer (Lepidoptera: Crambidae)," J. Econ. Entomol., vol. 93, pp. 982–988, 2000b.
  39. R. L. Wilson, C. A. Abel, B. R. Wiseman, F. M. Davis, W. P. Williams, B. D. Barry, and W. H. White, "Evaluation for multiple pest resistance in European corn borer, ostrinia nubilalis, resistant maize accessions from Peru," J. K.S. Entomol. Soc., vol. 68, pp. 326–331, 1995.
  40. F. H. Franca, G. L. Villas Boas, M. CasteloBranco, M. A. Medeiros, D. P. ManejoIntegrado, and J. B. C. Silva, Tomate para process amento industrial. Brasília: Embrapa Comunicação Para Transferência de Tecnologia; Embrapa Hortaliças, 2000.
  41. F. M. Michereff and E. F. Vilela, Traca do tomateiro, Tuta absoluta (Lepidoptera: Gelechiidae). Pp.81 84. In: Vilela, E.F.; Zucchi, R.A. and Cantor, F. (Ed.). Histórico e impacto das pragasintroduzidas no Brasil. Ribeirão Preto: Holos, 2001.
  42. M. Fancelli, J. D. Vendramim, R. T. S. Frighetto, M. Fancelli, J. D. Vendramin, and A. L. Lourencao, "Oviposição e dispersão de ninfas de bemisiatabacibiótipo B emgenótipos de tomateiro," Bragantia, vol. 67, p. 933 939, 2008.
  43. A. C. Antônio, D. H. Silva, M. C. Picanço, N. Santos, and M. Fernandes, "Tomato plant inheritance of antixenotic resistance to tomato leaf miner," Pesq. Agropec. Bras., Brasília, vol. 46, pp. 74-80, 2011.
  44. D. R. Porter, D. W. Mornhinweg, and J. A. Webster, Insect resistance in barley germplasm. Pp. 51–60. In: Clement, S. and Quisenberry, S. (Eds.). Global plant genetic resources forinsect-resistant crops. Boca Raton, FL: CRC Press, 1998.
  45. D. R. Porter and J. A. Webster, "Russian wheat aphid-induced protein alterations in spring wheat," Euphytica, vol. 111, pp. 199–203, 2000.
  46. J. A. Webster, D. R. Porter, J. D. Burd, and D. W. Mornhinweg, "Effects of growth stage of resistant and susceptible barley on the Russian wheat aphid, diuraphisnoxia (Homoptera: Aphididae)," J. Agric. Entomol., vol. 13, pp. 283–291, 1996.
  47. D. W. Mornhinweg, D. R. Porter, and J. A. Webster, "Registration of STARS-9577B Russian wheat aphid resistant barley germplasm," Crop Sci., vol. 39, p. 883, 1999.
  48. J. A. Webster and D. R. Porter, "Reaction of four aphid species on a Russian wheat aphid resistant wheat," Southwest Entomol., vol. 25, pp. 83–90, 2000a.
  49. D. B. Hays, D. R. Porter, J. A. Webster, and B. F. Carver, "Feeding behavior of biotypes E and H green bug (Homoptera: Aphididae) on previously infested near-isolines of barley," J. Econ. Entomol., vol. 92, pp. 1223–1229, 1999.
  50. J. A. Webster and D. R. Porter, "Plant resistance components of two greenbug (Homoptera: Aphididae) resistant wheats," J. Econ. Entomol., vol. 93, pp. 1000–1004, 2000b.
  51. D. R. Porter, J. D. Burd, K. A. Shufran, J. A. Webster, and G. L. Teetes, "Green bug (Homoptera: Aphididae) biotypes: Selected by resistant cultivars or preadapted opportunists?," J. Econ. Entomol., vol. 90, pp. 1055–1065, 1997.
  52. E. E. Sebesta, E. A. Wood, D. R. Porter, J. A. Webster, and E. L. Smith, "Registration of Amigo wheat germplasm resistant to green bug," Crop Sci., vol. 34, p. 293, 1994.
  53. D. R. Porter, J. A. Webster, and B. Friebe, "Inheritance of green bug biotype G resistance in wheat," Crop Sci., vol. 34, pp. 625–628, 1994.
  54. D. R. Porter, J. D. Burd, K. A. Shufran, and J. A. Webster, "Efficacy of pyramiding green bug (Homoptera: Aphididae) resistance genes in wheat," J. Econ. Entomol., vol. 93, pp. 1315–1318, 2000.
  55. J. Dubcovsky, A. J. Lukaszewski, M. Echaide, E. F. Antonelli, and D. R. Porter, "Molecular characterization of two triticums peltoides interstitial translocations carrying leaf rust and green bug resistance genes," Crop Sci., vol. 38, pp. 1655–1660, 1998.
  56. P. J. Zhang, S. Zheng, J. J.A., V. Loon, W. Boland, A. David, M. Roland, and M. Dicke, "Whiteflies interfere with indirect plant defense against spider mites in lima bean," PNAS, vol. 106, pp. 21202–21207, 2009.
  57. H. R. S. Moayeri, A. Ashouri, L. Poll, and A. Enkegaard, "Olfactory response of a predatory mirid to herbivore induced plant volatiles: Multiple herbivory vs. single herbivory," J. Appl. Entomol., vol. 131, pp. 326–332, 2007.
  58. C. Rodriguez-Saona, S. J. Crafts-Brandner, and L. A. Canas, "Volatile emissions triggered by multiple herbivore damage: Beet armyworm and whitefly feeding on cotton plants," J. Chem. Ecol., vol. 29, pp. 2539–2550, 2003.
  59. C. Rodriguez-Saona, J. A. Chalmers, S. Raj, and J. S. Thaler, "Induced plant responses to multiple damagers: Differential effects on an herbivore and its parasitoid," Oecologia, vol. 143, pp. 566–577, 2005.
  60. C. James, "Global review of commercialized transgenic crops." Available: 24, 2002.
  61. J. E. Carpenter and L. P. Gianessi, "Agricultural biotechnology: Updated benefit estimates." Available:, 2001.
  62. EPA, "Biopesticide registration action document: Bacillus thuringiensisplant-incorporated protectant." Available:, 2001.
  63. J. N. Jenkins, W. L. Parrott, J. J. C. McCarty, F. E. Callahan, S. A. Berberich, and W. R. Deaton, "Growth and survival of Heliothisvirescens (Lepidoptera: Noctuidae) on transgenic cotton containing a truncated form of the delta endotoxin gene from bacillus thuringiensis," J. Econ. Entomol., vol. 86, pp. 181–185, 1993.
  64. S. D. Stewart, J. J. J. Adamczyk, K. S. Knighten, and F. M. Davis, "Impact of Bt cottons expressing one or two insecticidal proteins of bacillus thuringiensis berliner on growth and survival of noctuidea (Lepidoptera) larvae," J. Econ. Entomol., vol. 94, pp. 752–760, 2001.
  65. J. Gore, B. R. Leonard, and J. J. Adamczyk, "Bollworm (Lepidoptera: Noctuidae) survival on ‘bollgard’ and ‘bollgardII’cotton flower bud and flower components," J. Econ. Entomol., vol. 94, pp. 1445–1451, 2001.
  66. W. P. Williams, J. B. Sagers, J. A. Hanten, F. M. Davis, and P. M. Buckley, "Transgenic corn evaluated for resistance to fall armyworm and South Western corn borer," Crop Sci., vol. 37, pp. 957–962, 1997.
  67. W. P. Williams, F. M. Davis, P. M. Buckley, P. A. Hedin, G. T. Baker, and D. S. Luthe, "Factors associated with resistance to fall armyworm (Lepidoptera: Noctuidae) and South Western corn borer (Lepidoptera: Crambidae) in corn at different vegetable stages," J. Econ. Entomol., vol. 91, pp. 1471–1480, 1998b.
  68. W. P. Williams, F. M. Davis, J. L. Overman, and P. M. Buckley, "Enhancing inherent fall armyworm (Lepidoptera: Noctuidae) resistance of corn with bacillus thuringiensis genes," FL. Entomol., vol. 82, pp. 271–277, 1999.
  69. R. E. Lynch, B. R. Wiseman, D. Plaisted, and D. Warnick, "Evaluation of transgenic sweet corn hybrids expressing CryIA(b) toxin for resistance to corn earworm and fall armyworm (Lepidoptera: Noctuidae)," J. Econ. Entomol., vol. 92, pp. 246–252, 1999a.
  70. R. E. Lynch, B. R. Wiseman, H. R. Sumner, D. Plaisted, and D. Warnick, "Management of corn earworm and fall armyworm (Lepidoptera: Noctuidae) injury on a sweet corn hybrid expressing a cryIA(b) gene," J. Econ. Ent Omol., vol. 92, pp. 1217–1222, 1999b.
  71. G. L. Windham, W. P. Williams, and F. M. Davis, "Effects of the Southwestern corn borer on Aspergillusflavuskernel infection and aflatoxin accumulation in maize hybrids," Plant Dis., vol. 83, pp. 535–540, 1999.
  72. G. P. Munkvold, R. L. Hellmich, and W. B. Showers, "Reduced fusarium ear rot and symptomless infection in kernels of maize genetically engineered for European corn borer resistance," Phytopath, vol. 87, pp. 1071–1077, 1997.
  73. G. P. Munkvold, R. L. Hellmich, and L. G. Rice, "Comparison of fumonisin concentrations in kernels of transgenic Bt maize hybrids and non-transgenic hybrids," Plant Dis., vol. 83, pp. 130–138, 1999.
  74. P. F. Dowd, "Biotic and abiotic factors limiting efficacy of Bt corn in indirectly reducing mycotoxin levels in commercial fields," J. Econ. Entomol., vol. 94, pp. 1067–1074, 2001.
  75. R. L. Hellmich, B. D. Siegfried, M. K. Sears, D. E. Stanley-Horn, M. J. Daniels, H. R. Mattila, T. Spencer, K. G. Bidne, and L. C. Lewis, "Monarch larvae sensitivity to bacillus thuringiensis- purified proteins and pollen," in Proc. Natl. Acad. Sci., USA, 2001, pp. 11925–11930.
  76. J. M. Pleasants, R. L. Hellmich, G. P. Dively, M. K. Sears, D. E. Stanley- Horn, D. R. Porter, and J. A. Webster, "Corn pollen deposition on milkweed in and near cornfields," in Proc. Natl. Acad. Sci., USA, 2001, pp. 11919–11924.
  77. M. K. Sears, R. L. Hellmich, D. E. Stanley-Horn, K. S. Oberhauser, J. M. Pleasants, H. R. Mattila, B. D. Siegfried, and G. P. Dively, "Impact of Bt pollen on monarch butterfly populations: A risk assessment," in Proc. Natl. Acad. Sci., USA, 2001, pp. 11937–11942.
  78. F. Huang, B. R. Leonard, and R. H. Gable, "Comparative susceptibility of European corn borer, Southwestern corn borer, and sugarcane borer (Lepidoptera: Crambidae) to cry1Ab protein in a commercial bacillus thuringiensiscorn hybrid," J. Econ. Entomol., vol. 99, pp. 194-202, 2006.
  79. M. M. Saker, H. S. Salama, M. Salama, A. El-Banna, and N. M. Abdel-Ghany, "Production of transgenic tomato plants expressing Cry 2Ab gene for the control of some lepidopterous insects endemic in Egypt," J. Genet. Eng. and Biotech., vol. 9, pp. 149-155, 2011.
  80. E. A. El-Shazly, I. A. Ismail, H. A. El Shabrawy, A. S. H. Abdel-Moniem, and R. S. Abdel-Rahman, "Transgenic maize hybrids as a tool to control Sesamia cretica led. Compared by conventional method of control on normal hybrids," Archives of Phytopathology and Plant Protection, vol. 46, pp. 2304-2313, 2013.


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( 34 ) Protective Bioactivity of Moringa (Moringa Oleifera Lam.) Seed Oil against Callosobrochus Maculatus (F.) Infestation in Stored Cowpea (Vigna Unguiculata L. Walp.)
( 35 ) Screening of Mycotoxins Producer Fungal and Aflatoxins Level in Dried and Smoked Fish (Clarias Sp.) and (Oreochromis Sp.) from Lake Fitri - Chad
( 36 ) Curative Bioactivity of Moringa (Moringa Oleifera Lam.) Seed Oil against Callosobruchus Maculatus F. Infested Cowpea (Vigna Unguiculata L. Walp.) Grain in Storage
( 37 ) Impact of Abattoir Effluent on Soil Chemical Properties in Yola, Adamawa State, Nigeria
( 38 ) Soil Respiration, Microbial Biomass and Ratios (Metabolic Quotient and Mbc/Toc) As Quality Soil Indicators in Burnt and Unburnt Aleppo Pine Forest Soils
( 39 ) Effect of Different Concentrations of Vermicompost (Biohumus) On the Root Collar Diameter and Height Growth in the Seedlings of Anatolian Black Pine
( 40 ) Effects of Cotton Gin Trash Level on the Performance of Desert Lambs in New Halfa Area, Kassala State, Sudan
( 41 ) The Influence of Probiotics and Antibiotic Growth Promoter on Growth Performance and Hemato-Biochemical Parameters in Broilers
( 43 ) Analysis of Rainfall and Temperature Variability to Guide Sorghum (Sorghum Bicolar) Production in Miesso Areas, Eastern Ethiopia
( 44 ) Survey on Economical Important Fungal Diseases of Tomato in Sub-Zoba Hamemalo of Eritrea
( 45 ) Studies on Seasonal Performance of Newly Developed Bivoltine Silkworm (Bombyx Mori L) Hybrids Tolerant To Bmnpv and Effect of Temperature on Disease Induction
( 46 ) Frequency of Gastrointestinal Parasites and Egg per Gram Faeces Count of Nematodes in Black Bengal Goat under Field Condition in West Bengal, India
( 47 ) Constraints to Brood and Sell Poultry Production among Farmers in Enugu State, Nigeria
( 49 ) Variation in Density and Shrinkage between Sawmill and Hand Processed Khaya Senegalensis Woodin Sokoto, North-Western Nigeria
( 50 ) Effect of Using Different Pre-Storage Warming Times on Hatchability of White Hisex Breeders’ Eggs
( 51 ) Evaluation of the Phytochemical, Antioxidant and Antimicrobialproperties of Extracts from Chrysophyllum Albidum (African Star Apple) Leaf
( 52 ) Combined Microbial Inoculation as a Promising Approach to Enhance Promiscuous Soybean Nodulation and Nitrogen Content in Sudan Savanna
( 53 ) Stover Yield and Chemical Composition in Some Sorghum Varieties in Gadarif State, Sudan
( 54 ) Cholesterol Content of Bull Spermatozoa Alters Survival at Ultra-Low Temperatures
( 55 ) Chemical Analysis of Acacia Ehrenbergiana (Salam) Tree Fruits (Seed and Pods) As Dry Season Supplement For Livestock in Arid and Semi –Arid Lands of Sudan
( 56 ) Effects of Degasified Extender on Quality Parameters of Cryopreserved Bull Spermatozoa
( 57 ) Bioaccumulation of Hydrocarbon, Heavy Metals and Minerals in Tympanotonus Fuscatus from Coastal Region of Bayelsa State, Nigeria
( 58 ) In Vitro Differential Effect of Nerve Growth Factor on Functional Parameters of Murrah Buffalo Spermatozoa in Low and High Fertile Groups
( 59 ) Analysis of Consumer Willingness to Pay for Genetically Modified Maize Food in Swaziland
( 60 ) Microbiological Profile, Shelf Stability and Some Physicochemical Properties of Fermented Flour from Different Sweet Potato Cultivars
( 61 ) Exposure of Medium Dose Gamma Rays and Storage Conditions Influenced the Weight Loss and Ripening of Alphonso Mango
( 62 ) “Evaluation of Phytochemical Constituents of the Fruits of Cucumis Sativus Linn. For their Hepatoprotective Activity by Molecular Docking Studies”
( 63 ) Effect of Domestic Cooking on Physicochemical Parameters, Phytochemicals and Antioxidant Properties of Algerian Tomato (Solanum Lycopersicum L. Var. Marmande)
( 65 ) Effect of Contamination by Fungi and Yeast on the Physiochemical Characteristics of Gum Arabic Stored in Semi-Desert Climate of Khartoum City, Sudan
( 66 ) Study on Agronomic Evaluation of Tomato (Lycopersicon Esculentum, Mill.) Varieties for Phonological, Growth and Yield Characters
( 67 ) The Domestic Livestock Resources of Turkey: Social Aspects, Genetic Resources and Conservation of Companion Animal Cats (Felis Catus)
( 68 ) Straw Composting with Biological Agent Inoculation and Application Biofertilizer to Increase Rice Production
( 69 ) Comparative Effect of Organic and In-Organic Fertilizer Treatment on the Growth and Tuberyeild of Sweet Potato (Ipomea Batata L)
( 70 ) Mobile Food Consumption Monitoring Application
( 71 ) The Effects of Magnetic Field on Germination of Seeds and Growth of Seedlings of Stone Pine
( 72 ) Comparing Post-Partum Growth by Body Weight between Sex and Litter Size of Agouti (Dasyprocta Leporina) Offspring from Birth to 360 Days Old
( 73 ) Evaluation of Selected Botanical Extracts against Mendi Termite Macrotermes subhyalinus (Isoptera: Termitidae), under Laboratory Condition
( 74 ) The Evaluation of the Agriculture of Hazelhazelnut in Duzce According to Climate Parameters
( 75 ) The Domestic Livestock Resources of Turkey: Silkworm (Bombyx Mori, L. 1758) (Lepidoptera: Bombycidae) Lines and their Conservation
( 76 ) Accelerating Agricultural Productivity to Enhance Economic Growth in Botswana
( 77 ) Mechatronics and Precision Livestock Farming in Mexican Animal Production
( 78 ) Stage Specific Life Table of Invasive Pest Mealybug, Phenacoccus Solenopsis (Tinsley) Under Cotton Field Conditions
( 79 ) Molecular Characterization of Parental Lines of Rice Aiming to Address High Yield and Nutritional Quality Under Drought and Cold Stress Condition
( 80 ) A Tobit Analysis of Propensity to Discontinue Adoption of Yam Minisett Technology among Farmers in Anambra State, Nigeria
( 81 ) Molecular Studies on E.Coli Isolate from Milk of Mastatic Cattle with Special Reference to Associated Biochemical Changes in Kaliobea Governorate
( 82 ) Helminths and Protozoa of the Gastrointestinal Tract of Ruminants in Tanzania
( 83 ) Growth and Survival Parameters and Blood IgG and Total Protein Levels of Calves Born in the First Production Year of Brown Swiss and Simmental Cows
( 84 ) Runoff Response to Climate Variability: An Analysis of Thika River Basin in Kenya Using Hydrological Simulation Model (Hysim)
( 85 ) Rural Farmers’ Coping Strategies to Effects of Climate Change on Watermelon Production in Igboora, Oyo State, Nigeria
( 86 ) Productivity Analysis of Labor for Use on Potatoes
( 87 ) Investigating Constraints to Poultry Management Practices among Smallholder Farmers in Benue State, Nigeria
( 88 ) Effects of Different Storage Conditions on Rooting and Shooting Performance of Grapevine (Vitis Vinifera L.) Cuttings in Hydroponic Culture System
( 89 ) Edible Films and Coatings: A Good Idea From Past to Future Technology
( 90 ) Pulsing Preservatives to Prolong Vase Life of Cut Rose Flowers in Bahir Dar, Northwestern Ethiopia
( 91 ) Study of Factors Linked to the Variation in Rentability in the Farming of Broiler Chickens in Northeast Algeria
( 92 ) Social, Economical and Environmental Issues of Floriculture Sector Development in Ethiopia
( 93 ) Gross Morphology and Morphometric Studies of Digestive Tract of Barn Owl (Tyto alba)
( 94 ) A Pictorial Guidebook on Poultry Diseases; Diagnostic Techniques and their Effective Treatment
( 95 ) Social, Economical and Environmental Issues of Floriculture Sector Development in Ethiopia
( 96 ) Attitude of Youth to Agriculture as Career in Iwo and Aiyedire Local Government Areas of Osun State, Nigeria
( 97 ) Assessment of Technical Efficiency of Layer Production in Mampong Municipality: Stochastic Frontier Approach
( 98 ) Attitude of Youths to Agriculture as Career in Iwo and Aiyedire Local Government Areas of Osun State, Nigeria
( 99 ) Importance of Arginine as Immune Regulator in Animal Nutrition
( 100 ) Insecticide Spraying Regime to Control Insect Pest of Cowpea: Management and Monitored Application of Cypermethrin in Lomami Province, DR Congo
( 101 ) Changes in Certain Agronomic Characteristics of Table Grape Cultivar Alphonse Lavallee’ in Response to Water Deficit under the Different Rootstock Effect
( 102 ) Floristic Composition and Density of Main Woody Species of the Parklands in Two Phytogeographical Zones in Burkina Faso
( 103 ) Adoption and Perception of Farmers towards Attributes of Improved Teff (Quncho) Varieties: Evidence from Benishangul-Gumuz Region of Ethiopia
( 104 ) Effect of Tuber Sections, Heat Treatment and Rehydration with Process Chemicals on the Physicochemical Properties of Sweet Potato (Ipomoea Batatas L. (Lam)) Flour
( 105 ) Ectoparasitosis in Domesticated Turkeys (Meleagris Gallopavo) in Jere Area, Borno State, Nigeria
( 106 ) Probiotic Supplementation in Poultry Production as an Alternative to Antibiotic Feed Additive
( 107 ) Risk Factors for the Contamination of Wild Stomoxys niger niger Macquart 1851 (Diptera: Muscidae) with the Foot-and-Mouth Disease Virus
( 108 ) Potential Economic Benefit and Producers’ Willingness to Adopt Bt-Brinjal in Bangladesh: An Ex-Ante Analysis
( 109 ) Comparative Larvicidal Efficacy of Carica Papaya Leaves and Seed Extract on Mosquito Larval Population in Rice Fields in Bida Metropolis, Niger State
( 110 ) Purple-Blue Pigmentation Production as a Sign of Immune Response by Bleached Corals to Avoid Stress Caused by Elevated Sea Surface Temperature
( 111 ) The Effect of Varieties and Fungicide Spray Frequencies on Septoria Leaf Blotch (Mycosphaerella graminicola) Epidemics on Bread Wheat in Western Amhara, Ethiopia
( 112 ) The Fungicide and Variety Integration Effect on Late Blight (Phytophthora infestans) Disease of Potato (Solanum tuberosum L.) in Western Amhara Region, Ethiopia
( 113 ) Evaluation of Leaf-Water Relation Traits, as Selection Criterion for Developing Drought Resistant Potato (Solanum Tuberosum L.) Genotypes
( 114 ) Comparative Evaluation of Six Different Storage Materials for Long-Term Preservation of Huckleberry (Solanum scabrum) Seeds
( 116 ) Evaluation of Bambara Groundnut (Vigna Subterranea (L) Verdc.) Varieties for Adaptation to Rainforest Agroecological Zone of Delta State, Nigeria
( 117 ) Growth and Yield Response of Shallot (Allium cepa var. aggregatum) Varieties to Intra-Row Spacing in Eastern Amhara, Ethiopia
( 118 ) Vegetable Farmers Knowledge and Safety Practices towards Pesticides: Results from Field Observation in Southeastern DR Congo
( 119 ) Adoption Impact of Improved Cowpea Variety in Selected Areas of Chattogram District of Bangladesh
( 120 ) Phototactic Response of Two Spotted Cricket (Gryllus bimaculatus De Geer) to Electric Bulb Light Colours and Types
( 121 ) Principal Component Analysis for the Quantification of Soil Horizon Carbon Stocks in Relation to Soil Bulk Density
( 122 ) Two Stubborn Storage Insect Pests, Callosobruchus maculatus and Sitophilus zeamais: Biology, Food Security Problems and Control Strategies
( 123 ) Effect of Boiling and Roasting on the Nutrients, Phytochemical and Functional Properties of Red and Green Cultivars of D. Bulbifera Flours
( 124 ) Evaluation of Bread Making Performance of Some Wheat Flour Brands Available in Nigerian Markets as Affected by Cassava or Sweet Potato Flour Inclusion
( 125 ) Processing and Storage Impact on Carotenoid Contents and Functional Properties of Yellow Cassava Traditional Food Products
( 126 ) Essential and Toxic Metals Determination in Imported and Fresh Beef Cattle Meat Sold in Erbil Markets
( 127 ) Storage Effects on Microbiological and Some Antioxidant Potentials of Partially Substituted Bread Produced from Wheat Flour and Fresh Coconut Meat
( 128 ) Challenges of Groundwater Development for Towns and Big Cities Water Supply in Rift Valley Areas
( 129 ) Seedlings Performance of Triplochiton scleroxylon (K. Schum.) under Different Light Intensities and Soil Textural Classes
( 131 ) Contributing Factors of Boro-Rice Production in Hakaluki Haor of Bangladesh
( 132 ) The Effect of Farmers Social Networks on Sustainable Agricultural Practices Adoption: A Scoping Review Protocol
( 133 ) Reduction of Aflatoxins and Microorganisms in the Koura-Koura Produced in Burkina Faso with Spices and Aromatic Leaves
( 134 ) Ovitrap Surveillance of the Dengue Vectors Aedes aegypti and Aedes albopictus in Selected Endemic Areas in Sandakan, Sabah
( 135 ) Effect of Photoperiod on Estrus Cycle and Reproductive Organs in Female African Giant Rat (Cricetomys Gambianus: Waterhouse)
( 136 ) Azotobacter and Total Bacterial Population in Enriched Compost: Preliminary Study
( 137 ) Construction of Sustainable Frugal Innovations Index for the Agriculture Sector
( 138 ) Determination of Phosphorous Fixation Capacity on Alluvium, Sandstone and Shale Soils of Akwa Ibom State, Nigeria
( 140 ) Bacteriological Quality and Cyanide Contents of Different Cassava Products Processed in Benue State for Use as Food for Man or Feedstock for Animals
( 141 ) Alleviating Climate Change Effect using Environmentally Friendly Process to Preserve Wood against Biodeteriaorating Agent
( 144 ) Effect of Land Use and Slope Position on Infiltration Characteristics on Sandstone-Derived Soils of Southern Nigeria