|Table of Contents|

Effect of Waterlogging Time on Root Morphology and Foliar Physiological Indexes of Soybean Varieties(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年01期
Page:
70-72
Research Field:
Publishing date:

Info

Title:
Effect of Waterlogging Time on Root Morphology and Foliar Physiological Indexes of Soybean Varieties
Author(s):
SONG Xiao-hui1; 2; ZHANG Zhi-jie3; LI Chun-guang3; ZHANG Dai-ping2; HAN Ying-peng1; LI Dong-mei1; LI Wen-bin1
1.Key Laboratory of Soybean Biology in Chinese Ministry of Education，Key Laboratory of Soybean Biology and Breeding/Genetics of Chinese Agriculture Ministry,Northeast Agricultural University,Harbin 150030,China；2.Crop Research Institute,Heilongjiang Academy of Land Reclamation Sciences,Jiamusi 154007,China；3.Jidong Agricultural Technology Extension Center,Jidong 158200,China;4.Rice Research Institute,Heilongjiang Academy of Land Reclamation Sciences,Jiamusi 154007,China
Keywords:
Soybean; Waterlogging time; Seedling stage; Root morphology; Foliar physiological indexes
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.01.0070
Abstract:
Under waterlogging stress at seedling stage by using double set of basin,two soybean varieties,Kenfeng14 with stronger waterlogging tolerance and Kenfeng 16 with the weaker,were used to study the effect of waterlogging time（1,3,5,7,10 days）on root morphology and foliar physiological indexes of soybean.Adventitious roots were occurred after 3 days of waterlogging stress,compared with CK,number of nodules,relative conductivity,MDA of two varieties changed little at the first three days.while with the increasing of stress time.The growth of root nodules was restricted with prolonged stress time and nodule numbers of Kenfeng 14 was less restrained than Kenfeng 16.With the increasing of stress time,adventitious roots number,relative conductivity,and MDA content of the two varieties were all increased,and at the same stress time,increment of Kenfeng 16 was significantly greater than Kenfeng 14.Different from other physiological indexes,significant increase of proline content appeared at seventh day of waterlogging stress for Kenfeng 14 and at the fifth day for Kenfeng 16.In the first 7 days,proline content of Kenfeng 16 was significantly greater than Kenfeng 14，while had the opposite trend from 7 to 10 days.

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Last Update: 2014-08-04