Journal of The Korean Society of Grassland and Forage Science (한국초지조사료학회지)
- Volume 15 Issue 2
- /
- Pages.132-139
- /
- 1995
- /
- 2287-5824(pISSN)
- /
- 2287-5832(eISSN)
The Effect of Cultivation Period on Growth Characteristics , Palatability and Forage Yield of Soybean Cultivars
대두 품종별 재배기간이 생육특성 , 기호성 및 수량에 미치는 영향
Abstract
This experiment was canied out to select the soybean of high productivity suited for soiling. and growth characterisitcs, palatability, dry matter and crude protein yield of 10 cultivars of soybean have been evaluated at the experimental forage field. College of Natural Science of Kon-Kuk University in Chungju over three years (1 989-1 09 1 ). The results obtained are summarized as follows: JangBaek showed the tallest plant length from the 70th day to 80th day during cultivation period. and BaekUn showed the tallest at 90th day. PalDal among all cultivars showed the fastest growth rate and the strongest resistant lodging during cultivation period. The stem diameter of 70th day showed highly in order of PalDal and HwangKeum > BaekUn > KwangKyo and JangYeob, the 80th day showed highly in the order of TogYu > BaekCheon > JangBaek and 90th day showed highly in order of BangSa > BaekCheon > JangYeob. Stem hardness was highly increased with increasing of cultivation period, but no significant difference were found among the soybean cultivan. Especially, BaekUn and TogYu of 90th day showed very high as 17.9 and 17.6 kg/cm2, respectively. In the number of branch, PalDal was the lowest during cultivation period(70, 80 and 90th day), and 90th day showed lower two and three times than other soybeans(P<0.05). In the leaf rate, BaekCheon showed the highest according to cultivation period and the lowest in JangBaek. The fresh yield was tended to increase by increasing cultivation period at all cultivars except KwangKyo, but no significant differences were found among cultivars. Dry matter yield of JangYeob was the highest as 5, 861 kg/ ha at 70th day, and that of KwangKyo and TogYu was the highest as 7, 471 and 10, 603 kgha at 80th and 90th day, respectively. Relative palatability of 70th days showed very high at all soybean cultivars(81-100%), and that of 80th and 90th day showed the highest at TogYu, while showed the lowest at PalDal. In crude protein content of the 70th, 80th and 90th day, DanYeob, JangYeob and HwangKeum were the highest as 20.1, 17.9 and 20.4 percentage, respectively. Crude protein yield during cultivation period showed the highest at JangYeob(7Oth : 1, 068, 80th : 1, 211, 90th : 1, 882 kglha), but showed the lowest at BangSa(70th : 61 1, 80th : 814, 90th : 1, 078 kg/ha).
본 시험은 청예용으로 생산성이 우수한 대두를 선발할 목적으로 우리나라 전역에 재배되고 있는 종실용대두(각 도별 추천품종)10품종의 생육특성, 기호성 및 건물수량을 비교 검토한 것으로 시험은 3년간 (1989~1991) 건국대학교 자연과학대학 부속 사료포장에서 실시하였으며 그 결과를 요약하면 다음과 같다. 초장은 재배기간 70, 80일째는 장백이 90일째는 백장에서 실시하였으며 그 결과를 요약하면 다음과 같다. 초장은 재배기간 70, 80일째는 장백이 90일째는 백우닝 가장 길었으며(P<0.01, 0.05), 전 생육기간동안 생육속도가 가장 빠르고 내 도복성이 가장 강한 품종은 팔달로 나타났다. 경의 굵기는 재배기간에 따라 70일WO는 팔달,황금>백운>광교, 장엽<,80일째는 덕유>백천>장백, 90일째는 방사>백천>장엽순으로 높았다. 경의 경도는 재배기간이 길어짐에 따라 모든 품종이 점점 높아지는 경향을 보였으나 품종간 유의차는 없었으며, 특히 백운과 덕유는 90일째 각각 17.9, 17.6kg/
Keywords