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  • CN 62-1070/P
  • ISSN 1000-694X
  • Bimonthly 1981
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Effects of Water Stress and Rewatering on the Dry Matter Accumulation, Root Shoot Ratio and Yield of Pea

  • Li Mingda ,
  • Zhang Hongping
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  • 1. Gansu Agricultural Technology College, Lanzhou 730020, China;
    2. Gansu Province Farmer Education and Training Supervision and Management Center, Lanzhou 730000, China

Received date: 2016-04-29

  Revised date: 2015-06-02

  Online published: 2016-07-20

Abstract

The "Yin Wan No.1" was used as the experiment material under artificially water control to study the effects of water stress and rewatering on dry matter accumulation, root shoot ratio and yield per plant of peas thought a potted experiment. The findings show that at seedling stage, flowering stage and pod filling stage under water stress, pea canopy and root dry matter accumulation was inhibited, the root and canopy dry matter accumulation rate was significantly or very significantly decreased. And with the stress intensity increased and stress time prolonged inhibition increases; water stress resulted in pea root shoot ratio increases, There was a positive correlation between stress intensity and duration of stress. After rewatering, the dry matter accumulation and root shoot ratio of pea have a certain degree of compensation effect, severe stress compensation effect was larger than that of mild stress. The compensation effects of stress duration were different in different stages of growth, and with the advance of the growth process, the compensation effect was reduced. Effects of rewatering after water stress on yield per plant of pea, the seedling stage on yield per plant compensation effect was better, the pod filling period times, the compensation effect of flowering period was the smallest, and mild water stress compensation effect was greater than the severe stress treatment, short duration stress compensation effect was greater than the long duration treatment.

Cite this article

Li Mingda , Zhang Hongping . Effects of Water Stress and Rewatering on the Dry Matter Accumulation, Root Shoot Ratio and Yield of Pea[J]. Journal of Desert Research, 2016 , 36(4) : 1034 -1040 . DOI: 10.7522/j.issn.1000-694X.2016.00095

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