|Table of Contents|

Effects of Nitrogen Topdressing at R1 on Seed-setting Rate in Soybean Male Sterile Lines(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年04期
Page:
724-726
Research Field:
Publishing date:

Info

Title:
Effects of Nitrogen Topdressing at R1 on Seed-setting Rate in Soybean Male Sterile Lines
Author(s):
ZHANG Wei-long;  ZHAO Li-mei;  PENG Bao;  WANG Shu-ming;  WANG Yue-qiang;  SUN Huan
Soybean Research Center, Jilin Academy of Agricultural Sciences, Changchun 130033,Jilin,China
Keywords:
Soybean; Seed-setting rate; Nitrogenous fertilizer quantity
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.04.0724
Abstract:
Three soybean male sterile lines and maintenance lines were used as materials to study the effects of different nitrogen fertilizer levels on seed setting rate of female parents. Nitrogen fertilizer was top dressed at R1 stage. The results showed that, as the nitrogen fertilizer amount rising, the seed setting rate of high outcrossing rate male sterile line(Suinong8BC10) was falling and the seed setting rates of low outcrossing rate male sterile lines(Suinong14BC8，Jilin47BC7) were increasing, in which T4 treatment (133.33 kg·ha-1) was the highest. Moreover, nitrogen top dressing had little effect on pod number of male parent, pod number of Suinong14 decreased with the increasing of fertilizer amount and the lowest value appeared in T5 treatment (166.67 kg·ha-1), while pod number of Suinong8 and Jilin47 remain stable. However, pod number of female parent significantly influenced by the amount of nitrogen fertilizer, pod number of Suinong8BC1 and Jilin47BC7 increased with fertilizer amount and peak value appeared in T5 (166.67 kg·ha-1) and T4 (133.33 kg·ha-1), respectively. Besides, pod number of Suinong14BC decreased with the increasing of nitrogen fertilizer amount. In conclusion, nitrogen top dressing had little effect on pod number of male parent, while it has remarkable effects on the seed setting rate and pod number of female parent.

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Last Update: 2014-09-15