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Investigation of yield, yield components changes and some physiological characteristics of barley genotypes under irrigation tension conditions
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S.A. Tabatabaei *   , E. Shakeri , M. Shahedi |
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Abstract: (5230 Views) |
| Drought is one of the most important environmental tension that affect yield and yield components of crops severely. This experiment was carried out at a research field in Agricultural Research Center and Natural Resources of Yazd in 2010-2011, in a Randomized Complete Block Design with six genotypes of barley including Yousef, Nosrat, ED3, ED6, ED8 and ED14 and three replications. In order to apply irrigation tension, irrigation cut was done in 50% ear emergence and drought tension was applied. Results showed that effect of genotype was significant on the majority of morphological traits (except for ear length, morphological characteristics (except for RWC), grain yield and harvest index. Totally, the highest amount of 1000- grain weight (29/12 gr) and stem diameter (41/67mm) was produced by Yousef cultivar ,the highest amount of plant height (71/67 cm), day to anthesis (79) and day to maturity (112) was obtained by Nosrat cultivar. The highest leaf water potential (48/6%) was produced by ED3 line, the highest amount of proline content (18/27%) and spikelet number (15/33) and in ED6 line. The highest leaf area (3904cm2) was produced by ED8 line. The highest of grain number per ear (53/3), chlorophyll (12/73), harvest index (43/8%) and grain yield (3369 kg/ha) was produced by ED14 line. Generally, regarding the high yield of ED14 line in drought tension conditions, this line is recommended. |
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| Keywords: Barley, Irrigation cut, Physiological characteristic, Yield. |
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Full-Text [PDF 5483 kb]
(3747 Downloads)
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Type of Study: Research |
Subject:
Crop Physiology
Received: 2014/04/26 | Accepted: 2014/04/26 | Published: 2014/04/26
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