ASSESSMENT OF QUANTITATIVE LOSSES IN DIFFERENT WHEAT VARIETIES DUE TO RICE WEEVIL (SITOPHILUS ORYZAE L.)

Q4 Environmental Science

Pollution Research Pub Date : 2023-01-01 DOI:10.53550/pr.2023.v42i01.006

R. Akbar, M. Sharma, D. Sharma, Raheeba Tunnisa, A. Akhter

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Abstract

A rapidly rising population and a shift in food preferences away from traditional cereals and towards wheat and wheat products are driving up wheat consumption. Storage pests, particularly Sitophilus oryzae, is one of the important insect pest, damages stored wheat grains, degrading the quality and quantity of the commodities by diminishing nutrition content and rendering them unfit for human use. To overcome such problems a study was undertaken to assess the quantitative losses caused by rice weevil in different wheat varieties during different storage periods so that to choose most resistant variety. This study was undertaken during 2018-2019 under laboratory conditions, different wheat varieties viz, VL 907, RSP 561, WH 1080, HD 3086, WH1105 were assessed for quantitative losses caused by rice weevil Sitophilus oryzae. The assessed parameters were adult emergence, per cent seed damage, per cent weight loss and per cent avoidable losses. Our investigation revealed that among the wheat varieties WH 1080 was found least susceptible with minimum number of progeny emergence (21.9), least seed damage (5.77%) and weight loss (1.50%) up to six months of storage period while as RSP 561 was highly susceptible with maximum number of progeny emergence (94.6), highest seed damage (69.3 %) and weight loss (23.6 %).

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稻象甲对不同小麦品种数量损失的评价

人口的迅速增长以及人们对食物的偏好从传统谷物转向小麦和小麦产品，推动了小麦消费的增长。仓储害虫，尤其是稻谷象虫，是一种重要的害虫，它破坏储藏的小麦籽粒，通过降低其营养含量而降低商品的质量和数量，使其不适合人类使用。为解决这一问题，开展了水稻象鼻虫在不同小麦品种不同贮藏期对水稻象鼻虫数量损失的评估研究，以选择最具抗性的品种。本研究于2018-2019年在实验室条件下，对不同小麦品种VL 907、RSP 561、WH 1080、HD 3086和WH1105进行了水稻象甲(siophilus oryzae)侵染造成的数量损失评估。评估的参数是成虫出苗率、种子损害率、体重损失率和可避免损失率。结果表明，在小麦品种中，w1080最不敏感，6个月前出苗率最低(21.9%)，种子损害最低(5.77%)，籽粒损失最低(1.50%);而RSP 561最敏感，籽粒出苗率最高(94.6%)，籽粒损害最高(69.3%)，籽粒损失最高(23.6%)。

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Pollution Research Environmental Science-Water Science and Technology

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期刊介绍： POLLUTION RESEARCH is one of the leading enviromental journals in world and is widely subscribed in India and abroad by Institutions and Individuals in Industry, Research and Govt. Departments.