甘蔗叶型研究初探  

A Preliminary Study on Leaf Types of Sugarcane

作　　者：陈能武[1] 黄久凯[1] 熊毅 

机构地区：[1]四川省制糖糖料工业研究所

出　　处：《甘蔗糖业》1990年第1期5-11,共7页Sugarcane and Canesugar

摘　　要：甘蔗叶型主要包括两个方面:叶片角度和叶面积大小。叶片角度分为4类,叶面积大小分为3类,它们都要受遗传因素控制。叶型不同,对光合作用和蔗产量的影响不同。随着叶位下降,叶片角度就更大。在整个生育期,直立型叶片品种的光合势都大于变斜型品种。通常,“宝塔型”植株最有利于光能在群体内合理地分配。相关分析表明:7～8且份的 LAI、单株叶面积、光合势以及+1叶角度与蔗产量的相关达显著水平。The leaf types of sugarcane mainly includes two characteristics:leaf area and leaf angle with main stalk.The leaf area is divided into three,while the leaf angle is divided into four types。They are mainly controlled by genetic factors. Different leaf types have different effects on photosynthesis and cane yield.The leaf angle is larger wich leaf rank to drop.Throughout the growth,the photosynthetic power for erect varieties are larger than for drooping ones.In general,“Pagoda-type”plants are best to rational distribute the sunlight within the colony. The results of correlative analysis showed:LAI,leaf area of individual plant,photosynthetic power during July to August,and angle of at+1 leaf have significant correlations with the cane yield.

关 键 词：甘蔗 叶型 叶片角度 叶面积 

分 类 号：S5661.01[农业科学—作物学]