Agro-physiological performance of wheat genotypes under moisture stress conditions
2010
Akram, H.M. (Agronomic Research Inst., AARI, Faisalabad (Pakistan)) | Sattar, A. (Agronomic Research Inst., AARI, Faisalabad (Pakistan)) | Ali, A. (Agronomic Research Inst., AARI, Faisalabad (Pakistan)) | Nadeem, M.A. (Agronomic Research Inst., AARI, Faisalabad (Pakistan))
A study was conducted during 2004-05 at Agronomic Research Institute AARI, Faisalabad, Pakistan. Screening of 25 wheat genotypes was carried out on the basis of photosynthetic efficiency, plant growth rate, total dry matter, 1000-grain weight and grain yield per plant under normal soil moisture and moisture stress conditions. In case of normal soil moisture conditions five irrigations were applied at critical growth stages viz. crown root development, tillering, booting, anthesis and milking, whereas in moisture stress treatment no irrigation was applied during whole plant growth and development period and only rainfall of 158.4 mm was the source of moisture supply. The results showed that moisture stress significantly decreased plant growth rate, total dry matter, 1000-grain weight and grain yield; whereas it increased chlorophyll content.
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