不同氮素水平下双季稻株型与冠层内光截获特征研究

李艳大,黄俊宝,叶春,舒时富,孙滨峰,陈立才,王康军,曹中盛

Plant type and canopy light interception characteristics in double cropping rice canopy under different nitrogen rates

Yan-Da LI,Jun-Bao HUANG,Chun YE,Shi-Fu SHU,Bin-Feng SUN,Li-Cai CHEN,Kang-Jun WANG,Zhong-Sheng CAO

图3 不同生育期、品种、时刻、施氮水平下的早、晚稻冠层内PAR截获率与向下累积叶面积指数的关系 IPAR表示PAR截获率, A和B分别表示孕穗期和抽穗后12 d, 缩写同表2, R2表示决定系数。

Fig. 3 Relationship between interception rate of PAR and downward accumulated LAI in early and late rice canopy under different development stages, cultivars, times, and nitrogen rates IPAR represents interception rate of PAR. A and B represent booting stage and 12 d after heading, respectively. Abbreviations are the same as those given in Table 2. R2 represents coefficient of determination.