|Table of Contents|

Genetic Analysis of Flat Pod Rate in Soybean and Germplasm Screening for Identification Elite Cultivars with Low Flat Pod Rate(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2019年01期
Page:
7-15
Research Field:
Publishing date:

Info

Title:
Genetic Analysis of Flat Pod Rate in Soybean and Germplasm Screening for Identification Elite Cultivars with Low Flat Pod Rate
Author(s):
YANG Meng-yuan1;  GAO Jie1;  ZHANG Xiang1;  ZHANG Wen-xiao1;  YANG Guo-xin1; FAN Ying-lun2;  LIU Li-ke1
（1.School of Life Science, Liaocheng University, Liaocheng 252059, China; 2.School of Agricultural Science, Liaocheng University, Liaocheng 252059, China）
Keywords:
Soybean;  Broad sense heritability;  Flat pod rate;  Germplasm screening
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2019.01.0007
Abstract:
In order to dissect the genetic characteristics of flat pod rate(FPR) in soybean and identify elite cultivars for further breeding, 17 germplasms which mainly originated from Huanghuaihai district and northeast of China were planted in a randomized block design with three replication in spring and summer of 2015 and 2017 respectively. In this research, FPR and some other important agricultural traits were tested. Furtherly, genetic analysis of FPR and elite germplasms with low FPR were also determined. The results of ANOVA showed that genotype, environment, genotype×environment all had great effects on FPR (P<0.001). The FPR varied from 6.26% to 46.40% with an average of 17.21% across the all environments. The elite germplasms with low FPR (<7%) were Heinong 37 and Kefeng 53; while those with high FPR (>30%) were Maodou（46.40%）and Yudou 25（33.19%）. The FRP in 2017 spring was significantly higher than that in 2015 summer at P=0.05 and than those in 2015 spring and 2017 summer at P=0.01 level. The broad sense heritability of FPR was 54.55% based on the results of the average of lines. The results of correlation analysis showed that FPR was significantly positively related to flat pod number (r=0.66, P<0.001) and height (r=0.15, P=0.04), not related to branch number (r=0.10, P=0.18), stem number (r=0.08, P=0.27), and pod number (r=0.10, P=0.17). All of the relative efficiencies of indirect selection were<1, which meant that the direct selection for FPR was superior to the indirect selection by other traits in the breeding progress. This research not only revealed the genetic figure of FPR and screened out the elite germplasms for cultivar development but also set a foundation for further QTL mapping and gene cloning.

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Last Update: 2019-01-22