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Effect of Night Illumination on Growth and Yield of Sesame and Perilla  

김충국 (농촌진흥청 작물시험장)
서종호 (농촌진흥청 작물시험장)
조현숙 (농촌진흥청 작물시험장)
김시주 (농촌진흥)
변종영 (충남대학교)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.4, no.2, 2002 , pp. 80-85 More about this Journal
Abstract
This study was conducted to investigate the effects of night illumination on the growth and yield of sesame(Sesamum indicum) and perilla(Perilla frutescens). Stem length and height of the first pod in sesame increased, whereas number of branch was reduced and flowering date and maturing date delayed as light intensity of night illumination increased. Number of capsules per plant, ripening ratio and seed yield of sesame were reduced as light intensity of night illumination increased. Yield reduction was greater in Ahnsankkae than in Sodunkkae. Number of nodes increased under night illumination in perilla. Two test cultivars showed reduction in number of branch at 6~10 Lx(22 ㎽ m$^{-2}$ ) intensity of night illumination, even though there was a variation between cultivars. Perilla was sensitive to night illumination far flowering and ripening. Flowering date was delayed by 21 to 28 days at 6~10 Lx intensity of night illumination. Number of flower clusters, number of seeds per flower cluster, and 1,000-seed weight in perilla were significantly reduced and seed yield was reduced by 89 to 98% at 6-10 Lx intensity of night illumination.
Keywords
night illumination; light intensity; sesame; perilla; growth; yield;
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