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Journal of Agronomy
  Year: 2018 | Volume: 17 | Issue: 2 | Page No.: 81-91
DOI: 10.3923/ja.2018.81.91
Classification of Seed Resistance of Various Genotypes of Sorghum (Sorghum bicolor [L.] Moench.) to Weevil (Sitophilus sp.) During Storage
Eko Pramono , Muhammad Kamal, Franciscus Xaverius Susilo and Paul Benyamin Timotiwu

Abstract:
Background and Objective: The supply of sorghum seed faces the problem of a weevil pest (Sitophilus sp.) during storage. The objective of this experiment was to determine the seed resistance of various genotypes of sorghum to weevils during storage, both in high and low temperature was conducted using a "choice method" based on painter theory. Materials and Methods: Three kinds of "choice method" (with the challenge, no challenge and control) were used to evaluate seed resistance to weevil of 34 genotypes of sorghum in Indonesia. This two-factor experiment (genotype and kind of method) was applied in a randomized complete block design with three replications. Results: There were differences in the weevil numbers in the three with "choice methods" and on seeds resistance to weevil among sorghum genotypes. There was significantly correlated between the weevil numbers and the percentage of damaged seeds with r = 0.98 (p<0.01) and with the percentage of intact seeds with r = 0.57 (p<0.01). Using a median value with 95% confidence interval, the 34 genotypes of sorghum could be classified into three groups of seed resistance to the weevil, which was high (11 genotypes), moderate (12 genotypes) and low (11 genotypes). Conclusion: The seed resistance of various genotypes of sorghum in Indonesia to weevil was different. The most vulnerable genotype (Numbu) was three times preferred by weevil compared to that the most resistant genotype (Samurai-1). Seed resistance to weevil could increased by reducing the temperature of storage room.
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How to cite this article:

Eko Pramono, Muhammad Kamal, Franciscus Xaverius Susilo and Paul Benyamin Timotiwu, 2018. Classification of Seed Resistance of Various Genotypes of Sorghum (Sorghum bicolor [L.] Moench.) to Weevil (Sitophilus sp.) During Storage. Journal of Agronomy, 17: 81-91.

DOI: 10.3923/ja.2018.81.91

URL: https://scialert.net/abstract/?doi=ja.2018.81.91

 
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