Genetic parameters of wheat populations in environments with contrasting temperatures

被引：2

作者：

de Oliveira, Davi Melo ^{[1
]}

de Souza, Moacil Alves ^{[2
]}

Machado, Juarez Campolina ^{[3
]}

Cargnin, Adeliano ^{[4
]}

机构：

[1] Embrapa Rondonia, BR-76815800 Porto Velho, RO, Brazil

[2] Univ Fed Vicosa, Dept Fitotecnia, BR-36570000 Vicosa, MG, Brazil

[3] Embrapa Gado Leite, BR-36038330 Juiz De Fora, MG, Brazil

[4] Embrapa Trigo, BR-99001970 Passo Fundo, RS, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2012年 / 12卷 / 01期

关键词：

Triticum aestivum L; components of variation; high temperatures; LOW-INPUT; SELECTION; TOLERANCE; DROUGHT; YIELD;

D O I：

10.1590/S1984-70332012000100011

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The objective of this study was to estimate genetic parameters of wheat segregating populations grown in environments with different thermal conditions. Thus, two experiments were carried out at Universidade Federal de Vicosa, Brazil. A 16 by 16 square lattice design was used with two replications, where 240 families from eight segregating populations, 30 families from each population, plus 16 parents were evaluated. In the first experiment, sown in February 2007 (summer), S-0:2 families were evaluated. In the second one, in June 2007 (winter), S-0:3 families were evaluated. Grain yield and thousand grains weight were recorded. So, the most promising population to be grown under different levels of temperature is the Population II originated from BR24/Alianca//EP93541/CPAC9662. It was verified that the thermal conditions might interfere in the wheat genotypes performance and also in the genetic parameters estimates.

引用

页码：85 / 91

页数：7

共 18 条

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