Abstract
<p>The increasing and stabilizing of soybean product in Indonesia face many limitations. One of the limiting factors is pod borrer (<em>Etiella zinckenella</em> Treitschke) infestation that is able to cause yield loss up to 80%. Objective of the research was to find out some advanced soybean lines that resistant to pod borrer. Design was randomized completely block with three replications. Soybean lines were grown gradualy to ensure the simultanously flowering. The plants were caged at 35 days after planting (DAT) and infested with the imago of <em>E. zinckenella</em> at 56 DAT. Results showed that different soybean lines affected imago population, eggs population, larvae population, infected pods and infected seeds. Some genotypes were consistantly resistant to <em>E. zinckenella</em>. The resistance of those genotypes were non preference resistance based on eggs population, larvae population, infected pod and infected seeds. This study discovered nine soybean lines that resistant to <em>E. zinckenella</em>, so that it can be beneficial for improving soybean resistance to this pest through releasing as a new pod borer resistant variety after tested further in potential yield and genetic x environment interaction trials. In addition, there were three varieties and two germplasm accessions that can be used as gene sources for improving the resistance of the varieties. The three varieties are able to be cultivated directly in farmer field to decrease the <em>E. zinckenella </em>occurrence. </p>
Highlights
METHODSOne of the limiting factors in increasing (Tengkano et al, 2006)
Soybean variety “Wilis” was grown seof pod borer in soybean occurs in dry season, alt- quentially in ILETRI’s greenhouse with one week hough there is Crotalaria sp. as the host along the interval for seven times planting date in the area year
Imago population of E. zinckenella on 50 evaluated genotypes, six check resistant genotypes, and one check susceptible genotypes revealed that imago population ranged 2.33–8.33 imago/ genotype (Fig. 1)
Summary
METHODSOne of the limiting factors in increasing (Tengkano et al, 2006). Pod borer, Etiella zincke- Crops Research Institute (ILETRI), Malang. Imago population Analysis of variance showed that the differences of soybean genotype affected significantly on population of imago, eggs, and larva, and number of attacked pod and seed damage. There were two genotype indicated highly resistant of non-preference manner or were not chosen as an alighting site, i.e. Tgm/Anj-833 and Anjasmoro.
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