Studies on the Photosynthetic Character of Pepper

doi:10.3321/j.issn:1000-7091.1998.03.024

Abstract

Abstract: In this experiment the photosynthetic rates of pepper(Capsicum annuum L )were studied.The main results were as follows:1 The net photosynthetic rates (Pn)of some varieties were significantly different.Pn ranged from 12～14μmol CO 2?m -2 ?s -1 2 There were obvious differences in Pn for different leaf position,lower in the older leaf and higher in younger leaf,the highest in the middle leaf.3 The Pn varied in daytime,in a double peak curve and there was a“midday depression”in the noon.4 Photo flux density exerted significant effect on Pn.The saturation point was 1800 μmol?m -2 ?s -1 ,and the compensation point was 50 μmol?m -2 ?s -1 .

Key words: Pepper, Net photosynthetic rate (Pn), Daily variation, Photo flux density (PFD), Leaf position, Variety

CLC Number:

S641.301

Huo Zhenrong， Pang Jin’an， Du Shengli. Studies on the Photosynthetic Character of Pepper[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1998, 13(3): 121-124. doi: 10.3321/j.issn:1000-7091.1998.03.024.

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