|Table of Contents|

Changes of Some Physiological Characteristics and Agronomic Traits during Genetic Improvement of Soybean Cultivars in Jilin Province of China(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2009年03期
Page:
415-420
Research Field:
Publishing date:

Info

Title:
Changes of Some Physiological Characteristics and Agronomic Traits during Genetic Improvement of Soybean Cultivars in Jilin Province of China
Author(s):
LIU Guo-ning; ZHANG Zhi-an; XU Ke-zhang
College of Agronomy，Jilin Agricultural University，Changchun 130118，Jilin，China
Keywords:
Soybean; Genetic improvement; Physiological characteristics; Agronomic traits; Seed yield
PACS:
s565.1;s311
DOI:
10.11861/j.issn.1000-9841.2009.03.0415
Abstract:
Soybean yield in the world increased significantly with year of release.Future yield increase may be dependent on an understanding of the changes in soybean cultivars made by breeding and selection.However，the yield of new soybean cultivars did not show a linear increase in recent years in China.This may be related with that no clear physiological indexes were used for the selection of high yield soybean cultivars.The objective of this paper is to provide a review on some physiological characteristics changes associated with yield increase during the genetic improvement of soybean from 1923 to 2005 in Jilin province.At the same time，in order to evaluate the changes of physiological characteristics，a comparison between some physiological characteristics and some agronomic traits was made.We found that the genetic improvement of agronomic traits by soybean breeding has made obvious progress，meanwhile，some physiological characteristics were improved，while the percentage changes of physiological characteristics were smaller than those of agronomic traits.The genetic improvement of some physiological characteristics，such as，photosynthetic ability，apparent mesophyll conductance(ALMC)，nitrate reductase activity (NRA)，the number of nodule still have huge yield potentiality.Soybean breeding with physiological characteristics as breeding targets will have big improvement in soybean yield.

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Last Update: 2014-09-25