Two kinds of winter wheat(Triticum aestivum.L),Changwu 134(drought-resistant) and Shan 253(drought-sensitive),were applied to study the effects of drought on the net photosynthetic rate and chlorophyll content of flag leaves,and the dry matter remobilization that accumulated at the main stem,constituent internodes at pre-anthesis and its contribution to gain weight per ear.The result showed that the extent of reduction of grain weight per ear in Changwu 134 was significantly less than that of Shan 253 under...
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