Characterization and selection of interspecific hybrids of Brachiaria decumbens for seed production in Campo Grande - MS

被引：4

作者：

Monteiro, Lenise Castilho ^{[1
]}

Verzignassi, Jaqueline Rosemeire ^{[2
]}

Lima Barrios, Sanzio Carvalho ^{[2
]}

do Valle, Cacilda Borges ^{[2
]}

Fernandes, Celso Dornelas ^{[2
]}

Benteo, Gleiciane de Lima ^{[1
]}

de Liborio, Claudia Barrios ^{[1
]}

机构：

[1] Inst Fed Goiano, Campus Rio Verde,Ave Goiania,Km 1, BR-75901970 Rio Verde, Go, Brazil

[2] Embrapa Gado Corte, Ave Radio Maia 830, BR-79106550 Campo Grande, MS, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2016年 / 16卷 / 03期

关键词：

Seed production potential; genetic variability; genotypes; forage improvement;

D O I：

10.1590/1984-70332016v16n3a27

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The breeding program Brachiaria developed by Embrapa Beef Cattle provides studies to obtain forage with agronomic characters desired by farmers. In this regard, in 2013 and 2014, a study was carried out in order to select the best Brachiaria decumbens intraspecific hybrids, which are superior in relation to production, forage nutritional value, and resistance to spittlebugs. Estimates of genetic parameters and gains with selection were carried out. It was found that there was significant variability between genotypes for all characters. Gain with selection (GS%) ranged from 12 to 324%, and the highest percentage was found for weight of pure seeds (PS) of seed collectors of the second harvest. For reproductive tillers (RT), C001 and R091 hybrids had better performance than the control, and this character may be considered as a parameter to estimate production of pure seeds before flowering starts.

引用

页码：174 / 181

页数：8

共 30 条

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