摘要
高粱籽粒灌浆期功能叶片比叶重呈下降变化。低产品种下降最快，中产品种次之，高产品种下降最慢（旗叶低、中、高产品种比叶重下降速率分别为２９５，２０２和１２７ｍｇ／（ｄｍ２·ｄ）；上数第二叶片比叶重下降速率分别为２８３，１８２和１８２ｍｇ／（ｄｍ２·ｄ）。高粱籽粒灌浆期功能叶片比叶重与单株产量呈正相关关系，并随着灌浆的时间进程，其相关程度越密切。
Specific leaf weight(SLW) of function leaves were reduced in filling stage in grain sorghum. Reduced rate of SLW were the slowest in high yield varieties. Reduced rate of SLW were the fastest in low yield varieties. SLW of flag leag leaves reduced rate in high yield, medium yield and low yield varieties were 1.27mg/(dm 2·d) and 2.02mg/(dm 2·d). SLW of the top second leaves reduced rate in high yield and medium yield and low yield varieties were 1.28mg/(dm 2·d), 1.82mg/(dm 2·d) and 2.85mg/(dm 2·d). There were significantly position correlation between SLW of function leaves and grain yield per head in sorghum.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
1998年第2期11-13,共3页
Journal of Jilin Agricultural University
基金
吉林省科委资助
关键词
高粱
比叶重
产量
叶片
sorghum
specific leaf weight
grain yield
