Based on pot experiment, flax yield response to different degree droughts during its growing periods were analysed. The water deficits index(ri) and the drop productivity index(Ri) and the productivity response index(kyi) were obtained. The results showed that: The response of flax yield was classed by sensitivity to drought in the order: anthesis stage> grain filling stage> tilling stage> seedling stage> ripe stage, and grain yield is more sensitive than that of biomass. 2. The degree of evaptr...
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