ACTA AGRICULTURAE BOREALI-SINICA

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Effect of Sowing Date and Planting Density on Fluorescence Induction Kinetic Parameters and Yield in Different Spike Type Cultivars

LI Ning, ZHAI Zhi-xi, LI Jian-min, DUAN Liu-sheng, LI Zhao-hu   

  1. College of Agriculture and Biotechnology, China Agricultural University, Beijing 100193, China
  • Received:2009-11-12 Published:2009-12-31

Abstract: The field experiment was conducted to LAI, SPAD value photosynthetic (Pn) rate, evaluate fluorscence induction kinetic parameters and grain yield in different sowing date and planting density of two different spike type cultivars during grain filling stage, during 2007 -2008. The results indicated that two different spike type cultvars have shown for LAI smallest was the third sowing date, SPAD value was the first sowing date low. Pn, PS Ⅱ potential activity(Fv/Fo), the maximal quantum efficiency of PS Ⅱ photochemistry(Fv/Fm) and yield were higher in treatment of B_2C_1 for small spike type cultivar (Liangxing99), the same of large spike type cultivar (Zhouyuan9369). October 12 to 19 is the suitable sowing period.

Key words: Wheat, Sowing date, Fluorescence induction kinetic parameters, Yield

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Cite this article

LI Ning, ZHAI Zhi-xi, LI Jian-min, DUAN Liu-sheng, LI Zhao-hu. Effect of Sowing Date and Planting Density on Fluorescence Induction Kinetic Parameters and Yield in Different Spike Type Cultivars[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.7668/hbnxb.2009.S2.045.

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