Efficacy of putrescine and benzyladenine on photosynthesis and productivity in relation to drought tolerance in wheat (Triticum aestivum L.)

摘要: An experiment was conducted to find out the efficacy of putrescine and benzyladenine on photosynthesis productivity in wheat. Seeds wheat genotype HD 2329 (widely adapted under irrigated condition) were grown ceramic pots standard package practices. Putrescine (0.1 mM) (0.05 sprayed aerial portion these plants at time anthesis. After spray, half subjected water stress by withholding irrigation. The non stressed keep soil humidity field capacity. Results showed that drought severly reduced photosynthetic attributes, status chlorophyll content which significantly improved foliar application putrescine/benzyladenine. levels free proline, amino acids soluble sugars higher conditions enhanced further Memrane injury also both chemicals. Yield yield attributes conditions, but treated exhibited values over control. Most parameters found correlated with grain yield. It is suggested benyzladenine able impart tolerance response more promising owing better management various physio-biochemical processes, particularly conditions.