Effect of Cutting of Branch-top on Growth and Tuber Yield in Cynanchum auriculatum
2010
Nam, S.Y., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Kim, I.J., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Kim, M.J., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Choi, S.Y., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea | Song, I.G., Chungbuk Agricultural Research and Extension Services, Cheongwon, Republic of Korea
This experiment was carried out to get a basic information of yields and qualities as affected by 5 treatments including 10% cutting rate of branch-top with a view to reducing operating cost in the non-supporting cultivation system as an alternative of the staking cultivation system in Cynanchum auriculatum Royle ex Wight. The results were as followed; growth of branch-top by non-supporting culture seemed to be poor as compared to the staking one(conventional method). In non-supporting culture, lower rate of cutting of branch-top of the plants showed longer vine length, whereas higher rate of cutting resulted in thicker stem diameter and plenty of branch number. In view of leaf width in cutting rate of branch-top, the lower, the broader, but the chlorophyll content would be higher by increased rate of cutting of branch-top. Tuber growth seemed to be good in staking cultivation as compared to non-supporting cultivation. And marketable yield of no cutting of branch-top of the plants would be 559kg/10a, while 10~20% cutting rate of branch-top increased by 9~13% in non-supporting cultivation. The results obtained showed the optimal branch-top cutting ratio of non-supporting cultivation of which could be labor-saving farming technologies be 20% as an alternative of the staking cultivation system in Cynanchum auriculatum Royle ex Wight.
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