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Archive: Published Articles

ENVIRONMENT AND ECOLOGY

Interdisciplinary International Science Journal

Volume 41 (2023)
Issue 4
Page No. 2390

Authors:

 

Gautam Kunal,  

Anil Jakhar,

T. N. Goswami,
Dibyanshu Shekhar, Janmejay Kumar

Environment and Ecology 41 (4) : 2390—2395, October—December 2023
Article DOI: https://doi.org/10.60151/envec/HHAQ1331
ISSN 0970-0420

Effect of Sowing Dates and Preliminary Screening 
of Linseed Genotypes for Bud Fly Infestation

Gautam Kunal,  Anil Jakhar, T. N. Goswami,
Dibyanshu Shekhar, Janmejay Kumar

Received 11 May 2023, Accepted 7 August 2023, Published on 12 October 2023

ABSTRACT

 

Field experiments on effect of sowing dates and screening of genotypes in reference to linseed bud fly infestation were conducted during rabi 2016-17 under natural field conditions. The tested genotypes/varieties have shown high infestation of linseed bud fly and low yield in progressive manner with delay in sowing. The lowest mean bud fly infestation (13.39%) and highest mean yield (1385.30 kg ha-1) was obtained with the crop sown on 08.11.2016 whereas the highest mean bud fly infestation (37.46%) and lowest mean yield (177.75 kg ha-1) was obtained with crop sown on 08.01.2017. In case of varieties, the lowest mean bud fly infestation (19.83%) was observed in BRLS-102 followed by Shekhar (22.23%) whereas Shubhra resulted in highest mean bud fly infestation (32.82%). Out of tested genotypes, a total of 12, 65, 17, 5, 2 genotypes were categorized as resistant, moderately resistant, moderately susceptible, susceptible and highly susceptible, respectively based on bud fly damage index under natural field conditions.

Keywords    Linseed genotypes, Dasyneura lini Barnes, Resistance, Susceptible, Sowing date.

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