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Assessment Of Some Maize Varieties For Their Tolerance And Suppression To Sitophilius Zeamais (mostoch), (Coleoptera: Curculionidae)
Subject area: Biological & Medical Sciences · Area of research: Biological science
Abstract
Insect pests cause major damage to stored maize grain thereby reducing its weight, quality and germination vigour. Five open pollinated maize varieties (YLW-123, RED-COB, Single Cross, Hybrid-White, Local-l, and Local-ll) and one hybrid maize variety (YLW-123) were evaluated for tolerance and their effects on progeny development against the maize weevil, Stophilius zeamais. The experiment was laid in a randomised complete block design, with 6 treatments replicated 5 times. 100g maize grain was infested with 100 three week old unsexed pure culture adult weevils in 750 ml jars. After 15 days oviposition period, adult weevils were sieved out and parent weevil mortality determined. After a further 45 days, number of weevils emerged, percentage gain weight loss and number of damaged kernels were determined. Percentage kernel germination was determined through a germination test after 45 days of weevil attack. There were significant differences (p<0.05) in number of parent weevil mortality, number of weevils emerged, grain weight loss, kernel damaged and germination percentage among varieties. YLW-123 and RED-COB varieties showed potential to S. zeamais progeny suppression and tolerance as evidenced by high parent weevil mortality, low weevil emergence, less grain weight loss, low grain damage and high germination percentage.
Keywords
Stophilius zeamais, Maize Varieties, Tolerance, Suppression
References
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How to cite this paper
@article{1700905,
author = {Hafizu Muhammad Sulaiman, Aminu M.A, Namadina Murtala Muhammad, Tahir Abdulkadir Ahmad},
title = {Assessment Of Some Maize Varieties For Their Tolerance And Suppression To Sitophilius Zeamais (mostoch), (Coleoptera: Curculionidae)},
journal = {Iconic Research And Engineering Journals},
year = {2019},
volume = {2},
number = {7},
pages = {58-63},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1700905.pdf},
abstract = {Insect pests cause major damage to stored maize grain thereby reducing its weight, quality and germination vigour. Five open pollinated maize varieties (YLW-123, RED-COB, Single Cross, Hybrid-White, Local-l, and Local-ll) and one hybrid maize variety (YLW-123) were evaluated for tolerance and their effects on progeny development against the maize weevil, Stophilius zeamais. The experiment was laid in a randomised complete block design, with 6 treatments replicated 5 times. 100g maize grain was infested with 100 three week old unsexed pure culture adult weevils in 750 ml jars. After 15 days oviposition period, adult weevils were sieved out and parent weevil mortality determined. After a further 45 days, number of weevils emerged, percentage gain weight loss and number of damaged kernels were determined. Percentage kernel germination was determined through a germination test after 45 days of weevil attack. There were significant differences (p<0.05) in number of parent weevil mortality, number of weevils emerged, grain weight loss, kernel damaged and germination percentage among varieties. YLW-123 and RED-COB varieties showed potential to S. zeamais progeny suppression and tolerance as evidenced by high parent weevil mortality, low weevil emergence, less grain weight loss, low grain damage and high germination percentage.},
keywords = {Stophilius zeamais, Maize Varieties, Tolerance, Suppression},
month = {January},
}