|Table of Contents|

RESPONSE OF SOYBEAN VARIETIES TO OSMOTIC STRESS AT GERMINATION STAGE(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2007年04期
Page:
550-554
Research Field:
Publishing date:

Info

Title:
RESPONSE OF SOYBEAN VARIETIES TO OSMOTIC STRESS AT GERMINATION STAGE
Author(s):
LI Li-li1; LIU Tian-xue1; 2; ZHAO Xia2
1Department of Life Science，Zhoukou Normal University，Zhoukou 466000;
?2College of Agronomy，Henan Agricultural University，Zhengzhou 450002
Keywords:
Soybean (Glycine max(L) Merr);  Germination stage;  Osmotic stress;  Subordinate function value
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.04.019
Abstract:
Response of five soybean varieties to polyethylene glycol (PEG) osmotic stress at germination stage was investigated.The sequence of inhale water rate of five soybean varieties，under 25%(W/V)PEG-6000 osmotic stress，was Yudou 26 >Yudou 22 >Dishen 2 >Zhonghuang 20 >Zhou C-4-1.The germination energy and germination rate of five soybean varieties decreased significantly (P<0.05) under 15%(W/V)PEG-6000 osmotic stress，but the relative germination energy，except Zhou C-4-1，were no evident difference among the rest soybean varieties.The relative germination rate，except Zhou C-4-1 and Zhonghuang 20，were not markedly different among the rest soybean varieties.And the results showed that osmotic stress was in favor of radicle growth，but against hypocotyls growth，which were especially notable in Yudou 26，Yudou 22 and Dishen 2.The comprehensive evaluation on drought-resistance of five soybean varieties at germination stage was given based on subordinate function values analysis.The results suggested that Yudou 22 and Yudou 26 were high-drought-tolerant，followed by Dishen 2; Zhonghuang 20 is mid-drought-tolerant，while Zhou C-4-1 was drought-sensitive.

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Last Update: 2014-10-20