Field experiments consisting of 24 field pea genotypes were evaluated for performance and correlation of yield and its components in five locations of Southern region, Ethiopia using a randomized complete block design with three replications during 2006/07. Data on some agronomical traits such as number of pods per plant, number of seeds per plant, number of seeds per pod, Harvest index, 100 seed weight, plant height, biological yield, and seed yield were recorded. Significant difference was observed in all locations among the field pea genotypes for grain yield. The top mean grain yield (2659 kg ha-1) over the locations was achieved by the genotype Gume followed by Milky (2625 kg ha-1), FpEx-Dz (2511 kg ha-1) and Weyyetu (2460 kg ha-1). Among the test locations maximum mean grain yield was produced at Angacha (3801.98 kg ha-1) followed by Hossana (2087.93 kg ha-1), Freeze (1734.96 t ha-1) and Waka (1428.8 kg ha-1). The mean seed yield and positive environmental indices value of the present study corroborated that Angacha was found to be a favourable environment for the majority of field pea genotypes. Combined analysis of variance (ANOVA) Genotype environment interaction (GEI) was highly significant for all traits of the study though; Markos, IG-51890 and IG-51700 identified to be stable for more than one trait and officially released variety should be demonstrated on farm for acceptability and two ‘pipe line ‘genotypes namely IG-51890 and IG-51700 for further evaluation in diverse environments of south Ethiopia. Strong positive correlation of number of seeds per plant, number of pods per plant, harvest index, biological yield and plant height with seed yield indicates that these traits should be used as selection criteria to improve grain yield.
The study with the objective of releasing new varieties from promising field pea genotypes and demonstrating the commercial cultivars for growing areas of southern region, Ethiopia.
E. J. Gritton, Field pea. American society of agronomy-crop sci. Madison: Society of America, 1980.
T. Asfaw, D. Beyene, and G. Tesfaye, "Genetics and breeding of field pea. Cool-season food legumes of Ethiopia," in Proceedings of the First National Cool-Season Food Legumes Review Conference, Addis Ababa, Ethiopia, 1994, pp. 122-137.
CSA (Central Statistical Agency Agricultural Sample Survey), "Statistical report volume I on area and production of major crops (private peasant holdings, meher season)," Addis Ababa, Ethiopia 2005.
CSA (Central Statistical Authority of Ethiopia), "Statistical report on area and production of crops, farm management practices, farm implements, machineries and storage mechanisms," Addis Ababa, Ethiopia 2001.
H. G. Gauch and R. W. Zobel, "Identifying mega-environments and targeting genotypes," Crop Sci., vol. 37, pp. 311-326, 1997.
S. A. Eberhart and W. A. Russell, "Stability parameter for comparing varieties," Crop Sci., vol. 6, pp. 36-40, 1966.
J. M. Perkins and J. L. Jinks, "Environmental and genotype-environmental components of variability. III Multiple lines and crosses," Heredity, vol. 23, pp. 339-356, 1968a.
J. M. Perkins and J. L. Jinks, "Environmental and genotype-environmental components of variability. IV Non-linear interactions for multiple inbred lines," Heredity, vol. 23, pp. 525-535, 1968b.
H. Seboka and M. Fikresilassie, "Multivariate analysis of some Ethioipian field pea pisum sativum L. Genotypes," Academic Journals, vol. 5, pp. 78-87, 2013.
G. Tesfaye, "Genetic variability and association of characters in some Ethiopian field pea (Pisum Sativum L.) Germplasm," M.sc. Thesis, Alemaya University of Agriculture, 1999.
W. Tezera, "Genotype by environment interaction in field pea (Pisum Sativum L.) for yield and other traits across central and southern Ethiopia," M.sc. Thesis, Alemaya University of Agriculture, 2000.
M. Fikreselassie, Z. Habtamu, and A. Nigussie, "correlation and path analysis in Ethiopian fenugreek (Trigonella Foenum Graecum L.) Lang races," Crown Res. Educatn, vol. 2, pp. 132-142, 2012.
A. Bakhsh, T. Gull, B. A. Mailk, and S. Afsari, "Comparison between F1s and their parental genotypes for the patterns of character correlation and path coefficients in chickpea (Cicer Arietinum L.)," Pak. J. Bot., vol. 30, pp. 219-219, 1998.
V. Singh and F. Singh, "Selection criteria for yield in chickpea (Cicer Arietinum L.)," Ind. J. Agri. Sci., vol. 59, pp. 32-35, 1989.
M. Arshad, A. Bakhsh, M. Zubair, and A. Ghafoor, "Genetic variability and correlation studies in chickpea (Cicer Arietinum L.)," Pak. J. Bot., vol. 35, pp. 605-611, 2003b.
E. Abayneh, Soil of Areka agricultural research center. Un Published material. Technical Paper No.77, EARI, 2003.
E. Abayneh and A. Ashenafi, Soils of the testing sites of Areka agricultural research center. Addis Ababa: National Soil Research Center (NSRC), Soil Survey and Land Evaluation Section, EARI, 2006.
SAS System for Windows Release 8.02. Cary, NC, USA: SAS Institute Inc., 2001.
T. Girma, T. Getachew, and B. Geletu, "AMMI adjustments for yield estimates and classification genotypes and environments in field pea (Pisum Sativum L.)," Journal of Breeding and Genetics, vol. 3, pp. 180-195, 2000.
A. Bakhsh, M. Arshad, and A. Haqqani, "Effect of genotype X environment interaction on relationship between grain yield and its components in chickpea (Cicer Arietinum L.)," Pak. J. Bot., vol. 38, pp. 683-690, 2006.
Karasu, M. Oz, A. Goksoy, and Z. Turan, "Genotype by environment interactions, stability, and heritability of seed yield and certain agronomical traits in soybean [Glycine max (L.) Merr.]," Afr. J. Biotechnol, vol. 8, pp. 580-590, 2009.
A. Rossiele and K. J. Frey, "Estimation of selection parameters associated with harvest index in oat lines derived from a bulk population," Euphytica, vol. 24, pp. 121-127, 1975a.
Geletu, T. Seifu, and T. Abebe, "Stability of seed yield of lentil varieties (Lens Culinaris Medik.) Grown in Ethiopian highlands," Crop Research, vol. 9, pp. 337-343, 1995.
T. Wuletaw, "Effects of GE interaction on Neurotoxin and grain yield of grass pea," in Proceeding of 3rd annual conference of Agronomy and Crop Physiology Society of Ethiopia, Addis Ababa, Ethiopia, 1997.