【摘要】 通过对泉花 10号的开花习性、光合特性及其库源关系的研究表明 ,泉花 10号开花量比粤油 551- 116少 ,但开花集中 ,且花量多集中在开花前期 ,因而有效花率、成针率、成果率、饱果率均较高。同时还表现出叶面积指数较大 ,净同化率较高 ,干物质积累多 ,分配系数较大 ,即库大源大 ,库 /源比大 ,库源协调性好等生育特性。这些生育特性是泉花 10号高产的主要成因更多还原

【Abstract】 The blooming habit,photosynthetic characteristics and the relationship between sink and source were studied.The results showed that flower number of Quanhua 10 was fewer than that of Yueyou 551\|116 But it bloomed in a relatively short period, and more flowers bloomed in beginning period of flowering.So that the percentage of effective flower, pin,pod,matured pod were all higher.The results also indicated that Quanhua 10 possesses many growth and development characteristics for high yield cultivars, such as big leaf area index (LAI),high net assimilation rate (NAR),more dry matter accumulation,big economic coefficient and partitioning percentage.The sink, source and sink/source of Quanhua 10 were bigger than those of Yueyou 551\|116 The sink\|source structure could keep balance well.These characteristics were the main reason that Quanhua 10 had got high yield.更多还原