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Effect of Exogenous Hormones on Leaf Photosynthetic Parameters of Soybean Plants(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年03期
Page:
358-364
Research Field:
Publishing date:

Info

Title:
Effect of Exogenous Hormones on Leaf Photosynthetic Parameters of Soybean Plants
Author(s):
ZHAO Xin-yu1XU Ke-zhang2ZHANG Yu-jiao2CHEN Zhan-yu2ZHANG Zhi-an2
1.College of Horticulture,Jilin Agricultural University,Jilin 130118,China;2.Faculty of Agronomy,College of Jilin Agricultural University,Jilin 130118,China
Keywords:
Exogenous hormoneSoybeanPhotosynthesisGrowth stage
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.03.0358
Abstract:
In order to study the effects of exogenous hormones on leaf photosynthetic parameters of soybean plants,four soybean cultivars from north China were cut from the stem base,and then placed in to nutrient solution containing cytokinin(CTK),abscisic acid(ABA)and auxin(IAA)respectively and cultured at different growth stages.The result showed that ABA inhibited significantly leaf net photosynthetic rate(Pn),stomatal conductance(Gs)and transpiration rate(Tr)of soybean leaf,while both CTK and IAA enhanced their values.The effect of the same hormones on Pn,Gs and Tr of soybean leaf at different growth stages suggested that ABA has more severe inhibition effects on Pn,Gs and Tr at flowering(R2) and podsetting(R4)than seed filling(R6),while CTK and IAA had more significant enhancement on Pn,Gs and Tr at R6 than R2 and R4.The results indicated that exogenous hormones had close relationship with leaf photosynthetic parameters of soybean plants.

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Last Update: 2014-08-01