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Effect of deficit irrigation on physiologic and agronomic traits in common bean (Phaseolus vulgaris L.) genotypes
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Abstract: (5147 Views) |
| Water deficit is considered one of the most limiting factors in grain production in common bean. In order to investigate the effect of deficit irrigation on some physiological and agronomic traits in common bean genotypes a field experiment was conducted in Karaj in 2005 and 2006 cropping seasons. Experiment was conducted in a split plot arrangement using a randomized complete block design with 4 replications. Main plots consisted of three furrow irrigation methods including: alternate furrow irrigation (AFI), fixed furrow irrigation (FFI) and conventional furrow irrigation (CFI) and three coomon bean genotypes (cv. Akhtar, cv. Derakhshan and line D81083) were randomized in sub-plots. Results showed that the difference between AFI and FFI was not significant. Water deficit decreased relative water content, dry weight, harvest index and plant height but increased seed protein content, in all three genotypes, however, in line D81083, variations were less as compared to the other genotypes. Under water deficit conditions, the highest harvest index (47.38%) and relative water content (80.55%) were observed for line D81083, and the highest seed protein content (23.47%) was recorded for cv. Derakhshan. Therefore, line D81083 was more tolerant to water deficit conditions in comparison to cv. Akhtar and cv. Derakhshan . Hence, this line seems to be suitable for growing in deficit irrigation condition. |
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| Keywords: Alternate Furrow Irrigation, Common Bean, Deficit Irrigation and Genotype |
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Full-Text [PDF 315 kb]
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Type of Study: Scientific & Research |
Subject:
Special
Received: 2015/02/23 | Accepted: 2015/02/23 | Published: 2015/02/23
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