|Table of Contents|

Variation of Photosynthetic Gas-exchange Parameters among Soybean Gerplasm(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年05期
Page:
801-805
Research Field:
Publishing date:

Info

Title:
Variation of Photosynthetic Gas-exchange Parameters among Soybean Gerplasm
Author(s):
YIN Zhi-tong12MENG Fan-fan1SONG Hai-na1LIU Chun-ying1YU De-yue1
1.National Center for Soybean Improvement,National Key Laboratory of Crop Genetics and Germplasm Enhancement,Nanjing Agricultural University,Nanjing 210095,Jiangsu; 2.Jiangsu Yanjiang Institute of Agricultural Sciences,Nantong 226541,Jiangsu,China
Keywords:
SoybeanPhotosynthesisGas-exchange parametersVariationHigh photosynthetic efficiency breeding
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2009.05.0801
Abstract:
Abstract:Photosynthesis plays an important role in determining crop’s yield.Photosynthetic gas-exchange parameters have been widely used to reflect the photosynthetic capacity of plant.In the present study,pot experiment was conducted to evaluate 162 soybean varieties (lines) for four gas-exchange parameters,photosynthetic rate,stomatal conductance,internal CO2 concentration and transpiration rate,at R6 development stage with portable photosynthesis systems (LI-6400).The results showed: (ⅰ) the four gas-exchange parameters correlated with each other positively and significantly;(ⅱ)the gas-ex-change parameters demonstrated significant difference,wide variation range and quantitative distribution among varieties (lines),suggesting a larger potential for breeding improvement of these parameters;(ⅲ) fifteen varieties (lines) with high photosynthetic rate were selected,which could be used as base materials for future high photosynthetic efficiency breeding

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Last Update: 2014-09-15