Diversity of Yield Component Traits in Several genotypes of Sweet Corn
DOI:
https://doi.org/10.8726/709w0p98Keywords:
Genetic diversity, Uniformity, Sweet corn, SelectionAbstract
Abstract:
Sweet corn is a type of corn that has been widely cultivated in Indonesia. It is preferred over regular corn due to its sweeter taste. The increase in sweet corn production can be achieved by expanding the planting area or using high-yielding varieties. In plant breeding, the focus on increasing crop production is primarily through the use of high-yielding varieties. One approach is through plant selection, where high-yielding potential plants are selected to become superior varieties. At the initial stage of selection from crosses, plants with wide genetic diversity are identified. The selected plants are then developed to become more uniform, indicated by a narrower range of diversity. Narrow genetic diversity is achieved in advanced generations. The aim of this study was to examine the genetic diversity and trait feasibility in the developing lines of sweet corn as a basis for further selection. The materials used in the study were 14 lines of sweet corn, fertilizers, and pesticides. Sweet corn was planted in plot land using a Randomized Block Design with two replications. The results from the fourth generation of sweet corn plants showed that the traits of leaf number, plant height, ear length, and husk length exhibited narrow genetic diversity in most populations. Traits with narrow genetic diversity in the plant population can be selected again to increase uniformity and homozygosity in subsequent generations, leading to a fully uniform population.
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