|Table of Contents|

Effect of Flowering Period Drought on the Root Traits of Soybean Cultivars Main Cultivated in Heilongjiang Province(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2015年06期
Page:
987-992
Research Field:
Publishing date:

Info

Title:
Effect of Flowering Period Drought on the Root Traits of Soybean Cultivars Main Cultivated in Heilongjiang Province
Author(s):
ZHENG Wei;  GUO Tai;  WANG Zhi-xin;  LI Can-dong;  ZHANG Zhen-yu;  GUO Mei-ling;  LIU Zhong-tang;  LI Zhi-min
Jiamusi Branch of Heilongjiang Academy of Agricultural Sciences, Jiamusi 154007, China
Keywords:
Heilongjiang province; Soybean; Main cultivars;  Drought resistance ability
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2015.06.0987
Abstract:
In order to clarify the differences of root drought resistance of latterly main cultivated soybean cultivars in Heilongjiang province, 5 main cultivated soybean cultivars which nearly 20 years bred in Heilongjiang province were used as the pot test materials, using drought stress in different levels in flowering period， the root morphological, physiological indices and seed weight per plant(GWPP) were tested.The results showed that the root volume, root surface area, root dry weight and root activity increased and then decreased with the drought stress increased, while GWPP gradually down- root volume, root surface area, root dry weight and root activity of Hefeng 25 and Kenfeng 16 were more than others varieties under mild drought stress, and then drop less under high drought stress, secondarily Hefeng 35 and Hefeng 39; Those indicators of Suinong 14 were the fewest under mild drought stress and highest decreased under high drought.The GWPP of Hefeng 25 and Kenfeng 16 decreased slightly, Hefeng 35 and Hefeng 39 took the second place, Suinong 14 suffered the biggest drops under drought stress.The changes of root morphological, physiological index and GWPP showed that Hefeng 25 and Kenfeng 16 had better drought resistance ability, Hefeng 35 and Hefeng 39 took the second place, and Suinong 14 was the weakest.

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Last Update: 2016-01-05