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KMID : 1098420040120040279
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Korean Journal of Medicinal Crop Science
2004 Volume.12 No. 4 p.279 ~ p.284
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Variations of Agronomic Characteristics of Collected Coix lachryma-jobi Species
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Lee Eun-Seob
Kim Hee-Dong
Kim Sung-Ki
Yoon Seong-Tak
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Abstract
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This experiment was conducted to evaluate on agronomic traits of Korean local adlay (Coix lachryma L.) germplasm, 281 cultivars (lines). The largest collected cultivars was from Kyungsangbukdo (56 cultivars), and the next was in the order of Cheonlabukdo (48 cultivars), Kyungsangnamdo (44 cultivars), Kyunggido (39 cultivars) Chungcheongnamdo (23 cultivars), Kangwondo (23 cultivars), Cheonlanamdo (17 cultivars), and Chungcheongbukdo (16 cultivars) in distribution of collected region for 281 cultivars. In the growth stages, days to emergence from seeding were required 16.4{pm}2.03 days, days to heading from emergence was required 73.6{pm}5.87 days, days to ripening from heading was required 52.3{pm}4.91 days and cultivation period was required 142.5{pm}5.87 days. Culm length was 210.3{pm}16.39 cm, no. of tiller per plant was 10.4{pm}2.13, culm diameter was 11.7{pm}1.09 mm, fruiting position was 4.6{pm}0.82 node, no. of main culm node was 11.1{pm}0.78, degree of lodging was 5.3{pm}3.42 and severity of leaf blight was 56.1{pm}0.78 in the growth characteristics of the germplasm. In the yield of component, no. of grains per m^2 was 5,938{pm}2,152, percentage of ripening was 67.7{pm}33.12, 1,000 grains weight was 123.8{pm}33.76 g and grain weight was 473.0{pm}207.90 g. Grain weight was correlates significantly positively with no. of main culm node, percentage of ripening and no. of grains per m^2 among agronomic traits. Correlation coefficient between grain weight and 1,000 grain weight was positive, while grain weight and severity of leaf blight was significantly negative. Correlation coefficient between grain weight and days to ripening from heading was significant negatively.
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KEYWORD
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Coxi lachryma L., agronomic traits, growth, yield
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