Effect of Roots-cutting in Double Ridge Stage on the Photosynthetic Rate and Later Growth of Winter Wheat

doi:10.7668/hbnxb.2007.05.045

Abstract

Abstract: The effects of root-cutting in double ridge stage on the photosynthetic rate and later growth of winter wheat (Shi 8 and Heng 7228) growed in the pot were investigated. The results showed that: Both primary root-cutting and partial adventitious root-cutting decreased the photosynthetic rate after treated for 2 d, but increased it after treated for 20 d; At the same time, dry weight of root, biomass above the ground, and yield of maturity were all reduced; the effects of primary root-cutting on the winter wheat was greater than that of adventitious root-cutting.

Key words: Root-cutting, Photosynthetic rate, Double ridge stage, Winter wheat

CLC Number:

S512.101

LIU Zi-hui, LIU Bin-hui, LI Yun-chao, GUO Xiu-lin. Effect of Roots-cutting in Double Ridge Stage on the Photosynthetic Rate and Later Growth of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(5): 189-190. doi: 10.7668/hbnxb.2007.05.045.

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