|Table of Contents|

Effect of Drought Stress on Germination of Soybean(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年05期
Page:
701-704
Research Field:
Publishing date:

Info

Title:
Effect of Drought Stress on Germination of Soybean
Author(s):
MO Jin-gang1; 2; MA Jian1; ZHANG Li-hui2; WANG Pi-wu1
1.College of Agronomy,Jilin Agricultural University,Changchun 130118,China;
2.College of Life Science,Changchun Normal University,Changchun 130032,China
Keywords:
Soybean; Root mutant; Drought stress; Germination; Drought resistance
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.05.0701
Abstract:
To evaluate the effects of drought stress on seed germination and seedling growth of soybean,drought stress simulated by different concentrations of polyethylene glycol(PEG-6000),0,5%,10%,15%,20% and 25% of PEG-6000 were applied at soybean germination stage as drought stress conditions,and the germination rate,germination potential,germination index,vigor index,taproot length,number of lateral roots,total length of lateral roots and plumule length of JN18 and its root mutant M18 were analyzed,taking JN18,a wild-type line as control.The results showed that seed germination and seedling growth of soybean were significantly inhibited by drought stress in this experiment.With the strengthening of drought stress,seeds germination rate,germination index and vigor index were significantly reduced,taproot length,total length of lateral toots and plumule length of the seedlings were shortened,the number of lateral roots,root weight,lateral root weight and plumule weight were decreased.The results showed that M18 had higher seeds germination rate,germination index and vigor index under the same PEG treatment.M18 also showed a strong growth advantage under the same drought stress.Many indices of M18 were higher than JN18,including taproot length,number of lateral roots,plumule length etc..It was suggested that the ability of drought resistance of M18 was more superior than JN18.

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Last Update: 2014-12-26