GENOTYPE-ENVIRONMENT INTERACTION FOR SOME EXOTIC CHICKPEA GENOTYPES | ||||
| Journal of Plant Production | ||||
| Article 3, Volume 29, Issue 10, October 2004, Page 5443-5454 PDF (3.55 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2004.238820 | ||||
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| Authors | ||||
| S. A. Omar,1; S. A. N. Afiah1; A. I. Hassan1; N. M. M. Moselhy2 | ||||
| 1Plant Genetic Resources Dept. Desert Research Center, Cairo, | ||||
| 2Plant Production Dept. Desert Research Center, Cairo, EGYPT | ||||
| Abstract | ||||
| Thirty eight exotic chickpea genotypes from ICARDA were evaluated with the commercial cultivar Giza-3 for seed yield and some of its components during two growlng seasons (2002/03-2003/04) at Maryout and EI-Maghara Research Stations, Desert Research Center under five environmental conditions (Env.1, Env.2, Env.3, Env.a and Env.s). The first and second ones were under dry methods by using irrigation at sowing date only in addition to the seasonal rainfall during both growing seasons, whereas the third, one was carried out at the second season (2003/04) by irrigated after 45 days from sowing date in addition to the seasonal rainfall at Maryout Research Station. The fourth and fifth ones were carried out at EI-Maghara Research Station, under drip irrigation at all 6 days interval for one hour. The results indicated that there was a wide range of variability on yield and yield components between the two locations with high genotypic differences .In addition to the genotype x environment interaction was significant and a major portion of such was accounted by the deviation from linear response. Seed yield and some of its components influenced by the supplemental irrigation after 45 days from sowing date. High values of these traits were obtained when chickpea plants were irrigated once again after 45 days from sowing at Maryout Research Station in the second season. This out yielded by 32.41% and 48.21% for seed yield per plant compared with Env.1 and Env.2. Inaddition, genotypes No. 27 followed by No.7, 17 and 16 had the highest mean values for seed yield. Moreover, genotypes No. 27, 11, 31 and 29 recorded the highest mean values for number of seeds 1 plant as compared with the other genotypes either exotic or local one (Giza- 3). Stability studies revealed that genotypes No. 17 was more stable for seed yield 1 plant on the basis of (bi) and (S2di) which did not differ significantly from unity and zero, respectively and ranked third for seed yield compared with the other genotypes, also, it gave a suitable number of seeds 1 plant. From such studies it could be concluded that, genotype no. 17 consider the best genotype because it's more stable under five different environmental conditions. | ||||
| Keywords | ||||
| Chickpea; genotype x environment interaction; drought; rainfall; supplemental irrigation and stability | ||||
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