Abstract
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.
농업과학기술원, 영남농업시험장, 경기도농업기술원에서 분양받은 281계통을 대상으로 하여 이들의 생육 및 수량 특성조사를 수행하여 얻은 결과를 요약하면 다음과 같다. 1. 유전자원 281계통 중 경북지역에서 56종으로 수집종이 가장 많았으며, 다음으로는 전북, 경남, 경기, 충남, 강원, 충북, 전남 순이었다. 2. 출현소요일수는 $16.4{\pm}2.03$일이었으며, 출수소요일수는 $73.6{\pm}5.87$일이 소요되었고 성숙소요일수는 $52.3{\pm}4.91$일이 소요되었으며 재배기간은 $142.5{\pm}5.76$일이 소요되었다. 3. 생육특성은 간장은 $210.3{\pm}16.39$ cm, 분얼수는 $10.4{\pm}2.13$개, 간직경은 $11.7{\pm}1.09$ mm, 주간절수 $11.1{\pm}0.78$절, 착립절위 는 $4.6{\pm}0.82$절이었다. 4. 도복정도는 $5.3{\pm}3.42$였고, 잎마름병 발병정도는 $56.1{\pm}12.2%$였다. 5. 수량특성중 $m^2$당 립수는 $5,938{\pm}2152$립이었고 등숙 비율은 $67.7{\pm}33.12%$ 이었으며 천립중은 $123.8{\pm}33.76g$이었고 $m^2$당 립중은 $473.0{\pm}207.90g$이었다. 6. 종피경도는 $6.48\;.533\;kg/cm^2$였으며 장폭비는 $1.53{\pm}0.162%$이었다. 7. 농업형질간 상관에 있어서 $m^2$당 립중은 주간절수와 등숙립수, $m^2$당 립수와 수량간에는 고도의 정의상관을, 천립중과는 정의상관을 보였으며 잎마름병과는 고도로 유의한 부의 상관을, 성숙소요일수와는 부의 상관을 나타내었다.
