Field and greenhouse inoculation methods for assessment of sheath blight resistance in rice

被引：0

作者：

de Araujo, Leila Garces ^{[1
]}

Prabhu, Anne Sitarama ^{[2
]}

da Silva, Gisele Barata ^{[3
]}

机构：

[1] UniANHANGUERA, Ctr Univ Goias, BR-74415420 Goiania, Go, Brazil

[2] Embrapa Arroz & Feijao, BR-75375000 Santo Antonio De Goias, Go, Brazil

[3] Univ Fed Vicosa, Dept Fitopatol, BR-36570000 Vicosa, MG, Brazil

来源：

CROP BREEDING AND APPLIED BIOTECHNOLOGY | 2007年 / 7卷 / 02期

关键词：

Rhizoctonia solani; Oryza sativa; resistance; somaclones; disease evaluation;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Field and greenhouse inoculation methods were compared to determine the genetic variation for resistance to Rhizoctonia solani in 38 somaclones of rice cultivar Metica-1. Rice plants in pots were inoculated with isolate 4FI at the age of sixty four days, with 2.0 g of the fungal culture, multiplied on rice grain and hull medium and placed on the soil surface around the plant. The differences among somaclones in relation to lesion height were significant and varied from 6.5 to 15.5 cm. In the field trial of artificial inoculation with fungal culture, 52 days after planting, the lesion height varied from 6.2 to 17.7 cm. The correlation between disease severity in the greenhouse and the field was positive and highly significant (r=0.44; P <= 0.01), indicating the greenhouse inoculation as a safe method for screening germplasm for sheath blight resistance.

引用

页码：221 / 224

页数：4

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