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本文根据不同品种(组合)大田光合生产试验资料,阐明汕优63群体的光合与同化特性,並分析它们与栽培技术措施和温光条件的关系,为该组合的高产栽培提供依据。 (一)群体的光合特性 1.群体的光合特征值 测定结果表明,汕优63具有饱和光强较高、补偿光强较低的特点。在大体相同的栽培措施下,齐穗期群体剑叶的饱和光强为3.9万勒克司,显著高于扬稻1号和盐粳2号,比同类型的汕优2号亦高0.8万勒克司。补偿
In this paper, photosynthesis and assimilation characteristics of Shanyou63 population were elucidated based on the data of field experiments on photosynthesis of different cultivars (combinations), and their relationships with cultivation techniques and temperature and light were analyzed to provide evidence for the high-yielding cultivation of this combination. (A) Photosynthetic characteristics of population 1. The results of population photosynthetic characteristics show that Shanyou 63 has the characteristics of higher saturated light intensity and lower compensation light intensity. Under the same cultivation practices, the saturated light intensity of the flag leaves at the heading stage was 39,000 lux, which was significantly higher than that of Yangdao 1 and Yanjing 2, and higher than that of Shanyou 2 at the same type Ke Secretary. make up