RELATIVE RESISTANCE OF SOME COTTON VARIETIES AGAINST BOLLWORM COMPLEX AT DISTRICT SANGHAR, SINDH, PAKISTAN

ABSTRACT Cotton bollworms are an imperative insect pests of cotton which are not only responsible for yield reduction but also damages the lint quality by causing yellow spots on fibre that results in reduced market value of cotton. Therefore, this study with relative resistance of some cotton varie...

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Bibliographic Details
Published inPakistan journal of science Vol. 70; no. 4; p. 282
Main Authors Rajput, IA, Pathan, A K, Sehto, G N, Ahmed, A M, Memon, SA, Ali, A, Memon, A, Rajput, M M
Format Journal Article
LanguageEnglish
Published Lahore Knowledge Bylanes 31.12.2018
AsiaNet Pakistan (Pvt) Ltd
Subjects
Bollworms
Cotton
Cotton trade
Crop yield
Farmers
Foreign exchange
Humidity
Insects
Lint
Market value
Pest resistance
Pesticides
Pests
Population
Regression analysis
Research centers
Textiles
Variance analysis
Pakistan
Sindh Pakistan
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Summary:ABSTRACT Cotton bollworms are an imperative insect pests of cotton which are not only responsible for yield reduction but also damages the lint quality by causing yellow spots on fibre that results in reduced market value of cotton. Therefore, this study with relative resistance of some cotton varieties against bollworm complex was designed. Nine cotton varieties were grown at farmers field Sanghar during 2014. The result showed that maximum pink bollworm population (0.92±0.20) was observed on CRIS-467 and minimum (0.52±0.15) on MNH-552. Maximum American bollworm population (0.92±0.20) was observed on IR-901 and minimum (0.48±0.15) on CRIS-467 variety. Maximum spotted bollworm population (0.80±0.19) found on CRIS-467 and minimum population (0.52±0.15) on MNH-552 per plant respectively. It was concluded from this study that MNH-552, IR-901 and MNH-552 were resistant varieties against bollworms as compared to other cotton varieties.
ISSN:0030-9877
2411-0930