The important role of using resistant varieties in handling powder beetle pests Maros Research Institute for Cereal Crops Abstract This paper attemps to discuss the important role of using resistant varieties in handling powder beetle pests. This paper discusses 1) the limitations of resistant varieties, resistance properties, and mechanisms of resistance to powder pests, 2) reviewing several types of research in the search for sources of resistance through assembling varieties, forming populations of resistant gene sources, improving genotypes through the formation of lines/families, screening lines against insect infestations, finding sources of resistance through assembling and screening varieties/lines. This paper is expected to provide useful information in the context of developing science and technology, especially in handling problems related to insect infestation of powdered beetle pests and technology for utilizing resistant varieties. Efford in the control of powder beetle pests have taken a long time but the results have not been satisfactory. Several components of control, such as the application of environmental sanitation, the use of chemicals (fumigation, fogging), the application of good cultivation technology, the application of physical and mechanical control techniques are proven not to significantly reduce the population. Therefore, more effective control techniques are needed to suppress powder pest populations, including using resistant varieties. Based on the results of the study, it is known that the varieties that are resistant to powder pests have the characteristics of perfect husk cover, corn kernels which contain a good outer maternal layer of the seeds, corn kernels with a perfect cotyledon structure, and corn kernels which contain a large portion of acid. The source of resistance from genetic factors has the opportunity to be transferred to superior varieties. A closed husk that is longer than the cob can reduce powder beetle infection while the seeds are still in the field. Keywords: Impact of Attack, Maize Weevil, Food Safety, Health Topic: Integrated Pest and Disease Management |
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