Studies on heterosis and its relation to genetic divergence in maize (Zea mays L.) inbred lines

被引：0
作者：
D. Datta
B. K. Mukherjee
S. P. Das
N. S. Barua
机构：
[1] Regional Station,Directorate of Wheat Research
[2] Indián Agricultural Research Institute,Genetics Division
[3] National Research Center on Orchids,undefined
[4] Department ofPlant Breeding & Genetics,undefined
来源：
Cereal Research Communications | 2004年 / 32卷 / 4期
关键词：
D; statistic; genetic divergence; heterosis; maize hybrid;
D O I：
10.1007/BF03543333
中图分类号：
学科分类号：
摘要：
Heterosis and its relation to genetic divergence between the parents was explored in a diallel cross among 8 inbred lines of maize (Zea mays L.) selected from an array of 32 inbreds, derived from 4 genetically and geographically diverse populations, on the basis of genetic distance deduced through Mahalanobis’ D2 statistic on 20 diagnostic and agronomic traits. Pooled analysis was carried out for calculating heterosis as the error mean squares at the two locations were homogenous. Heterobelteosis was observed in all the traits under study for many crosses. Among the top ten heterotic hybrids, the highest frequency of crosses were with intermediate genetic distance followed by high genetic divergence between the parents. However, a few crosses with low genetic divergence also fell in the category of top 10 hybrids. It was realized that parents with high per se performance and intermediate genetic divergence produced highly heterotic as well as high yielding hybrid.
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页码：443 / 450
页数：7
相关论文
共 32 条
  • [1] Ahloowalia BS(1963)Effect of genetic diversity in combining ability of inbred lines of maize Indian J. Genet. 23 158-162
  • [2] Dhawan NL(1995)Heterosis and combining ability in maize for grain yield and some plant characters Anadolu. 5 35-51
  • [3] Altinbas M(1984)Limits to genetic divergence for occurrence of heterosis-Experimental evidence from crop plants Indian J. Genet 44 548-554
  • [4] Arunachalam V(1983)Heterosis in relation to genetic divergence and specific combining ability in groundnut Euphytica 33 33-39
  • [5] Bandyopadhyay A(1982) L.) Indian J. Genet. 42 324-328
  • [6] Arunachalam V(1966)Heterosis and genetic variability in relation to genetic divergence in soybean Genetics 53 269-274
  • [7] Bandyopadhyay A(1984)Heterosis of the hybrid related to gene frequency differences between two populations Bangladesh J. Agric. Res 9 78-83
  • [8] Nigam SN(1972)Heterosis in maize. I. Grain yield and some of its attributes Crop Sci. 12 16-18
  • [9] Chauhan VS(1939)Third phase in the yield evaluation of synthetic varieties of maize J. Am. Soc.Agron. 31 710-724
  • [10] Singh BB(1936)The breeding of improved selfed lines of corn Proc. Nat. Inst. Sci. India 2 49-55
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