Photosynthesis and yield traits in different soybean lines in response to salt stress.

Autor:	He, Y.
Další autoři:	Chen, Y. Yu, C. L. Lu, K. X. Jiang, Q. S. J. L. Fu G. M. Wang D. A. Jiang
Jazyk:	angličtina
Předmět:	chlorofyl chlorophyll články journal articles fluorescence chlorofylu nefotochemické zhášení fotochemické zhášení stomatální vodivost chlorophyll fluorescence cyclic electron flow electron transport rate nonphotochemical quenching photochemical quenching stomatal conductance
Druh dokumentu:	Non-fiction
ISSN:	0300-3604
Abstrakt:	Abstract: To evaluate utility of different salt-tolerant lines, three soybean lines with different resistance to salt were planted in the field under control and salt-stress conditions for two years. The results showed that net photosynthetic rate (PN) was significantly different among lines at the anthesis stage and decreased on average by 13.6-34.1% under conditions of salt stress. The stomatal conductance was a primary limiting factor for the reduction of PN under salt stress. Meanwhile, the grain yield (GY) decreased on average by 14.0-35.3% among lines under salt stress. The salt-tolerant lines S111-9 and S113-6 showed higher PN and GY under salt stress in comparison with the salt-sensitive cultivar Melrose. Regression analysis indicated that there was extremely significantly positive correlation between GY and PN under field conditions. Therefore, PN might be used as a physiological index for field resistance of soybean to salt stress.
Databáze:	Katalog Knihovny AV ČR
Externí odkaz:	Plný text Full text from SpringerLink