Study on the Relation between Leaf Area, Photosynthetic Rate and Yield of Wheat

doi:10.7668/hbnxb.2008.S2.003

Abstract

Abstract: In order to investigate the relationships among leaves at different posit ions, photosynthetic rate of flag leaf and grain yield, thirty-three wheat varieties( lines) which have differences among leaf characteristics, harvest index and yield were studied as materials.The results indicated that the correlat ions between the top-three leaf area and single plant biomass, economic yield were significantly positive.However, there were no significant correlat ion between the area of other leaves located on the base position single plant biomass, economic yield. A posit ive association was found between photosynthetic rate of flag leaves and biomass,economic yield, but correlation was not signif icant. However, the product of photosynthetic rate of flag leaves and leaf area was significant ly and posit ively correlated with biomass and economic yield. In addition, there was a signif icantly positive correlation between biomass and economic yield.

Key words: Wheat, Leaf area, Photosynthet ic rate, Yield

CLC Number:

S512.1

WANG Yi-qin, YANG Xing-hong, LI Bin, TONG Yi-ping, LI Zhen-sheng. Study on the Relation between Leaf Area, Photosynthetic Rate and Yield of Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2008, 23(S2): 10-15. doi: 10.7668/hbnxb.2008.S2.003.

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