Photosynthesis parameters in two cultivars of mulberry differing in salt tolerance

被引：28
|
作者：
Kumar, SG [1 ]
Lakshmi, A [1 ]
Madhusudhan, KV [1 ]
Ramanjulu, S [1 ]
Sudhakar, C [1 ]
机构：
[1] Sri Krishnadevaraya Univ, Dept Bot, Anantapur 515003, Andhra Pradesh, India
来源：
PHOTOSYNTHETICA | 1999年 / 36卷 / 04期
关键词：
chlorophylls; intercellular CO2 concentration; leaf area; leaf dry mass; Morus alba; net photosynthetic rate; salt stress; stomatal conductance; transpiration; water use efficiency;
D O I：
10.1023/A:1007008608217
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Three-month-old mulberry (Morus alba L.) cultivars (salt tolerant cv. S1 and salt sensitive cv. ATP) were subjected to different concentrations of NaCl for 12 d. Leaf area, dry mass accumulation, total chlorophyll (Chl) content, net CO2 assimilation rate (P-N), Stomatal conductance (g(s)), and transpiration rate (E) declined, and intercellular CO2 concentration (C-i) increased. The changes in these parameters were dependent on stress severity and duration, and differed between the two cultivars. The tolerant cultivar showed a lesser reduction in P-N and g(s) coupled with a better C-i and water use efficiency (WUE) than the sensitive cultivar.
引用
收藏
页码：611 / 616
页数：6
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