Establishment of the irrigated rice cultivar SCSBRS Tio Taka by recurrent selection

被引：7
|
作者：
Rangel, Paulo Hideo Nakano [1 ]
Brondani, Claudio [1 ]
de Morais, Orlando Peixoto [1 ]
Schiocchet, Moacir Antonio [2 ]
de Oliveira Borba, Tereza Cristina [1 ]
Rangel, Priscila Nascimento [1 ]
Vianello Brondam, Rosana Pereira [1 ]
Yokoyama, Satoro [2 ]
Bacha, Richard Elias [2 ]
Ishiy, Takazi [2 ]
机构：
[1] Embrapa Arroz & Feijao, BR-75375000 Santo Antonio De Goias, Go, Brazil
[2] EPAGRI, BR-88301970 Itajai, SC, Brazil
来源：
CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2007年 / 7卷 / 01期
关键词：
Oryza sativa; recurrent selection; population improvement; SSR markers; grain yield;
D O I：
10.12702/1984-7033.v07n01a17
中图分类号：
S3 [农学（农艺学）];
学科分类号：
0901 ;
摘要：
This study aimed to present and discuss the recurrent selection methodology used in the development of the rice cultivar SCSBRS Tio Taka. This cultivar, derived from the population CNA-IRAT 4, achieves high yields and has agronomic traits related to a better performance in the pre-germinated cultivation system used in Santa Calarina State. The molecular characterization of Tio Taka and CKA-IRAT 4 parents with 16 SSR markers showed that one of the parents, BG 902, was highly, similar to SCSBRS Tio Taka. The most probable reason was that SCSBRS Tio Taka was extracted from CNA-IRAT 4 in the second recombination cycle, preventing the occurrence of a high level of recombination and favoring the phenotypic selection of plants derived from crosses with BG 90-2 as parent, once this line has one of the best plant architectures and yields.
引用
收藏
页码：103 / 110
页数：8
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