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EFFECT OF DROUGHT AT DIFFERENT GROWTH STAGESON MAIN PHYSIOLOGICAL PARAMETERS AND YIELD IN SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2006年03期
Page:
329-332
Research Field:
Publishing date:

Info

Title:
EFFECT OF DROUGHT AT DIFFERENT GROWTH STAGESON MAIN PHYSIOLOGICAL PARAMETERS AND YIELD IN SOYBEAN
Author(s):
Zhao Hongwei 1 　 Li Qiuzhu 1 　 Wei Yongxia 2
(1. Department of Agronomy , Northeast Agricultural University , Harbin 150030;2. College of Water Conservancy and Building Engineering , NortheastAgricultural University , Harbin 150030)
Keywords:
Soybean ; Pn; NRA ; yield
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2006.03.0329
Abstract:
Effect of drought at different grow th stages on physiological parameters, such as Pn, NRA , SSand SPS activity , yield and yield components were studied in this article. Results showed that Pn, NRA ,SS and SPS activity were all decreased by drought treatments at different growth stages. Pn was reducedmostly by drought treatment at branch to grain-filling. NRA was decreased mostly by drought treatment atflorescence , next were branch and grain-filling. SS and SPS activity were decreased mostly by drought atflorescence ,next were grain-filling and branch. Yield and yield components were reduced by drought treat-ments at different grow th stages. Legumes per plant and number of seeds per pod were decreased mostlyby drought treatments at pod-setting next ,were grain-filling and florescence. Weight of 100-grain was de-creased mostly by drought treatments at grain-filling next pod-setting and florescence. Yield of single plantwas decreased mostly by drought treatments at pod-setting , next were grain-filling and florescence. Effectof drought treatments at florescence , pod-setting and grain-filling on yield was significant and we shouldpay attention to moisture-managing at this growth stages in producing of soybean.

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Last Update: 2016-12-16