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首页|期刊导航|中国农业科学（英文版）|Study of Yield Combining Ability and Genetic Relationship Among Exotic Tropical, Subtropical Maize (Zea mays L.) Inbreds and Temperate Maize Inbreds in China

Study of Yield Combining Ability and Genetic Relationship Among Exotic Tropical, Subtropical Maize (Zea mays L.) Inbreds and Temperate Maize Inbreds in China

FAN Xing-ming TAN Jing YANG Jun-yun LIU Feng HUANG Bi-hua HUANG Yun-xiao

中国农业科学（英文版）2002，Vol.1Issue(7)：725-731,7.
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中国农业科学（英文版）2002，Vol.1Issue(7)：725-731,7.

Study of Yield Combining Ability and Genetic Relationship Among Exotic Tropical, Subtropical Maize (Zea mays L.) Inbreds and Temperate Maize Inbreds in China

Study of Yield Combining Ability and Genetic Relationship Among Exotic Tropical, Subtropical Maize (Zea mays L.) Inbreds and Temperate Maize Inbreds in China

FAN Xing-ming 1TAN Jing 1YANG Jun-yun 1LIU Feng 2HUANG Bi-hua 3HUANG Yun-xiao1

作者信息

  • 1. Yunnan Academy of Agricultural Sciences, Kunming 650205, P. R . China
  • 2. Baoshan Institute of Agricultural Sciences, Baoshan 678000, P.R. China
  • 3. Dehong Institute of Agricultural Sciences, Luxi 678400, P. R. China
  • 折叠

摘要

Abstract

Information on the genetic relationship between tropical maize (Zea mays L), germplasm and temperate maize germplasm is of great value to maize breeding. The objective of this study was to determine the combining ability and genetic relationship of 25 inbreds extracted from five tropical maize populations and a land race, with four temperate maize inbreds (Huangzaosi, Mo17, B73 and Dan 340). The 25 tropical inbreds were crossed with the four temperate inbreds and evaluated. Lines from Suwan1 and POP28 had high general combining ability (GCA) for grain yield. The lines from POP32 (ETO) had the highest special combining ability (SCA) with B73; the average SCA value of the 5 lines was 879 kg/ha. The lines from Suwan1had the second-highest SCA (584 kg/ha) with Huangzaosi. The lines from Suwan1 had the greatest relative heterosis (20%) with B73, followed by the lines from POP32 (ETO) with B73 (19%). Five heterotic patterns have been identified from this study: Suwan1 × Reid, ETO × Reid, POP28 × Reid, POP28 × Ludahonggu, and Suwan1 × Lancaster.

关键词

Tropical maize/Subtropical maize/Temperate maize/Inbred/Combining ability/Heterosis/Genetic relationship/Special combining ability (SCA)/General combining ability (GCA)

Key words

Tropical maize/Subtropical maize/Temperate maize/Inbred/Combining ability/Heterosis/Genetic relationship/Special combining ability (SCA)/General combining ability (GCA)

引用本文复制引用

FAN Xing-ming,TAN Jing,YANG Jun-yun,LIU Feng,HUANG Bi-hua,HUANG Yun-xiao..Study of Yield Combining Ability and Genetic Relationship Among Exotic Tropical, Subtropical Maize (Zea mays L.) Inbreds and Temperate Maize Inbreds in China[J].中国农业科学（英文版）,2002,1(7):725-731,7.

基金项目

This study was funded by the Natural Science Foundation of Yunnan Province (98C006Z). （98C006Z）

中国农业科学（英文版）

2095-3119

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