Evaluation of bread wheat lines for drought tolerance in international nursery WAMII.
2011
Lotf Ali Ayeneh, Gholam Abbas | Hamuleh Shalal, Hossein | Naderi, Ahmad | Kamali, Jalal | Esmaeil Zadeh Moqaddam, Mohsen
In order to identify drought tolerant lines received from the International research Center for Wheat and Maize (CIMMYT) this research were conducted at 2009-10 cropping cycle in agricultural experiment station in Ahvaz. The numbers of 294 lines were planted in Alpha Lattice Design in two replicates. Traits days to heading, and maturity, plant height, the chlorophyll content of flag leaf in anthesis stage and canopy temperature before and after anthesis stag each three time and ultimately grain yield and seed weight were evaluated. The results showed that average grain yield comparisons with related approaches with Average Mass Line (2.54 t/ha) showed statistically superior to any of the lines did not mean the masses. The relative yield index in the range 105 to 154 percent, respectively, 2.66 and 3.92 tons per hectare average mass ratio (٢.٥٤ t/ha) showed that lines with drought tolerance in the season final between the lines investigated in this study. Investigation of simple correlation between traits in this study showed that lines with moderate chlorophyll levels and Waxi Volume 3-4 number and heading up relatively early and relatively late grain filling and medium seed weight and high canopy temperature before anthesis have more tolerant of drought stress.
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