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EFFECTOF NaCl ON THE GROWTH,K+ ,Na+ AND Cl -DISTRIBUTION INSEEDLINGS OF 6 SOYBEAN CULTIVARS(Glycine max L.Merril l)(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2001年03期
Page:
177-182
Research Field:
Publishing date:

Info

Title:
EFFECTOF NaCl ON THE GROWTH,K+ ,Na+ AND Cl -DISTRIBUTION INSEEDLINGS OF 6 SOYBEAN CULTIVARS(Glycine max L.Merril l)
Author(s):
Luo Qingyun 　Yu Bingjun 　Liu Youliang
Key Lab of Crop Growth Regulation , Minist ry of Agriculture , NanjingAgricultural University , Nanjing 210095
Keywords:
Soybean ; Salt tolerance ; Evalution of salt tolerance ; K+ ; Na+; Ratio of K+to Na+ ; Cl-
PACS:
S332.1
DOI:
10.11861/j.issn.1000-9841.2001.03.0177
Abstract:
Seedlings w ith two fully expanded leaves w ere cultivated in 1/2 ’ hoagland’ nut rient solution containing0 , 50 , 100 , 150mmol·L-1 NaCl for 14 day s .Then average percentage of senescenced leaf area and percentageof no rmal seedling were employed as indexes in salt tolerance of 6 soybean cultivars (Glycine max L .Merrill).The evalution of NaCl effect s on the grow th , K+ ,Na+and Cl-dist ribution in seedlings w ere surveyed .The results show ed that , according to their ability of salt tolerance , ”Lee68” and ”Nannong 1138 -2” were ranged as’ strong’ , ”Nannong 88 -31” w as ranged as ’ moderate’ , ” No .1 of Suxie” and ” Jackson” were ranged as ’w eak’ and ”Jiangsu Zhongzi huangdou -yi” was the ’ w eakest’ o ne .Accumulat ion of shoot biomass, height andstem node No .of seedling were reduced dramatically .Ratio of roo ts to shoot s w as increased .Compared to saltsensitive varieties , the leaf of salt tolerance ’ st rong’ varieties w as characterized as st rong selector of K+ , andtheir shoot s and root s were characterized as st rong impediments in upw ard t ransport of Na+and Cl-.

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