灌水次数对杂种小麦冀矮1/C6-38旗叶光合特性和产量的影响

作物学报 ›› 2006, Vol. 32 ›› Issue (03): 410-414.

灌水次数对杂种小麦冀矮1/C6-38旗叶光合特性和产量的影响

张永丽;肖凯;李雁鸣

河北农业大学农学院，河北保定 071001

收稿日期:2005-01-20 修回日期:1900-01-01 出版日期:2006-03-12 网络出版日期:2006-03-12
通讯作者: 肖凯,李雁鸣

Effect of Irrigation Times on the Photosynthetic Charcteristics of Flag Leaf and Grain Yield in Wheat Hybrid Ji’ai 1/ C6-38

ZHANG Yong-Li;XIAO Kai and LI Yan-Ming

College of Agronomy, Hebei Agricultural University, Baoding 071001, Hebei

Received:2005-01-20 Revised:1900-01-01 Published:2006-03-12 Published online:2006-03-12

摘要/Abstract

摘要：

在大田中研究了灌2水（底水+冬水）、3水（底水+冬水+拔节水）和4水（底水+冬水+拔节水+开花水）3种灌水处理对杂种小麦旗叶光合特性和产量的影响。结果表明，随灌水次数增多，杂种及其亲本旗叶净光合速率（P_n）、叶绿素含量（Chl）、可溶性蛋白质含量（Pr）、气孔导度（g_s）和叶肉导度（g_m）升高，光合功能持续期（RSP和PAD）延长，叶源量（LSC）增加，籽粒产量和产量构成因素增加。杂种旗叶的P_n、Chl、Pr、g_s和 g_m对灌水次数的反应较亲本敏感。上述性状的离中优势（H_m）也随灌水次数的增多而增大。

关键词: 灌水次数, 杂种小麦, 旗叶, 光合特性, 籽粒产量

Abstract:

A field experiment with three treatments of different irrigation times at different stage was conducted during wheat growing period. The results showed that with the increase of irrigation times, the net photosynthetic rate (P_n), chlorophyll concentration (Chl), soluble protein contents (Pr), stomatal gas conductance (g_s), mesophyll gas conductance (g_m), relative steady phase of chlorophyll content(RSP), photosynthetic active duration(PAD) and leaf source capacity(LSC) of flag leaf were increased in wheat hybrid and its parents, and the grain yield and yield components in creased also. The P_n, Chl, Pr, g_s and g_m of flag leaf in hybrid were more sensitive to the times of irrigation than that in its parents at different stages after flag leaf was fully expanded. The heterosis from mid-parent(H_m) of all above traits were increased with the increase of the irrigation times.

Key words: Irrigation times, Wheat hybrid, Flag leaf, Photosynthetic characteristics, Grain yield

中图分类号:

S512

张永丽;肖凯;李雁鸣. 灌水次数对杂种小麦冀矮1/C6-38旗叶光合特性和产量的影响[J]. 作物学报, 2006, 32(03): 410-414.

ZHANG Yong-Li;XIAO Kai and LI Yan-Ming. Effect of Irrigation Times on the Photosynthetic Charcteristics of Flag Leaf and Grain Yield in Wheat Hybrid Ji’ai 1/ C6-38[J]. Acta Agron Sin, 2006, 32(03): 410-414.

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