Southern Ningxia loess hilly area is a main flax productivee area, becacse of flax s characters of resistant cool and drought, higheconomic benefit, its tilled area is being larger and has reached 53 000hm2 presently. So it become a main resources of local agro-economy. Therefor we did the experiment to select improved varieties. Though its response to environment and appearances in several growing periods along with its grain yield, we had choosen several fine flax varieties which had such superiority: hig...
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