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Yield losses due to gall midgeOrseolia oryzaeWood‐Mason in some rice varieties and characterisation of tolerance

 

作者: P. S.Prakasa Rao,  

 

期刊: Tropical Pest Management  (Taylor Available online 1989)
卷期: Volume 35, issue 2  

页码: 205-206

 

ISSN:0143-6147

 

年代: 1989

 

DOI:10.1080/09670878909371358

 

出版商: Taylor & Francis Group

 

关键词: Yield losses;Rice gall midge;Rice varieties;Tolerance

 

数据来源: Taylor

 

摘要:

The yield losses caused by the Asian rice gall midgeOrseolia oryzaeWood‐Mason in 15 traditional or high yielding varieties, studied by the paired plot (unprotected and protected) technique, ranged from‐0.06 in CR.1014 to 1.1% in CR.58‐MR.1538 for every unit per cent increase in silver shoots. Based on this, CR.1014 was identified as highly tolerant with no yield loss (‐0.06%) followed byJagannathwith 0.27%, while the other entries were rated as either moderately tolerant (0.3–0.60%) or least tolerant (0.61 % and above).

 

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