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KMID : 1098419970050010056
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Korean Journal of Medicinal Crop Science
1997 Volume.5 No. 1 p.56 ~ p.61
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Morphological and Growth Characteristics of Collected Coix lacryma-jopbi mayuen STAF in Korea
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Lee Hyo-Sung
Kim Ki-Jung
Lee Eun-Seob
Sung Byung-Yurl
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Abstract
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This research was conducted to investigate morpological and growth characteristics of 358 Coix lacryma-jopbi mayuen STAF collected in Korea. The test collections contained 76% medium wide-type leaf, 59% medium size-type seed, 34% large size-type seed, 70% elliptical-type shell, 50% brown shell color, 92% low stem color and hardness of seed coat averaged 3.4kg/cm^2 with the range of 1.1{sim}18.7kg/cm^2. 24% adaptable plant height ranged from 156cm to 170cm, days to heading after seeding averaged 83.2% with the range of 74{sim}94 days, early maturating varietes was 24.9% below 80 days. Rate to leaf blight 48.5% with the range of 9{sim}92% and rate to stem borer averaged 8% with the range of 0{sim}17%. The weight of 1000 seeds showed positive correlation with days to flowering and plant height and number of seeds per plant showed positive corrleation with percentage of ripness, but weight of 1000 seeds showed negative correlation with occurrence of leaf blight and stem borer plant. Therefore we are expecting useful germplasm and selectable index for effective breeding.
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KEYWORD
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Coix lacryma-jobi var. mayuen STAF, Breeding, Germplasm, Characteristics
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