Secondary Characters Based Selection of Indonesian Kenaf (Hibiscus cannabinus L.) Germplasm for Developing Superior Varieties
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Date
2022-01-19
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Balai Besar Penelitian dan Pengembangan Bioteknologi dan Sumber Daya Genetik Pertanian
Abstract
Abstract. Indonesia has released 13 varieties of kenaf derived from the refining of several introduced lines and hybridization. Lines selection was carried out to obtain lines that have certain superior characters. This study aimed to determine the agronomic characters that can be used as secondary characters for selection to support the developing process of new superior varieties. A total of 70 kenaf accessions from Indonesian Sweetener and Fiber Crops Research Institute (ISFCRI) germplasm collection, was mainly introduced accessions from International Jute Organization (IJO). Primary data of the 16 quantitative morphological characters were observed based on the total accessions to be subjected
for analysis using correlation, path analysis, and scatter plot. The characters of the first flower phase, 50% flower blooming, fiber harvest phase, plant height, diameter, and dry core weight had a significant and positive correlation coefficient with the dry weight of kenaf fiber. The dry weight of the core showed the best direct effect and total effect
value, i.e. 0.88 and 0.84, respectively. Based on dry core and fiber weight characters, three distribution clusters of 70 kenaf accessions were obtained. In quadrant III, two accessions potentially produce the best dry fiber and they can be considered a source of parent in developing a new superior variety of kenaf.
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Keywords
hybridization, Agronomic, Superior Varieties