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KMID : 1041219930350010021
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Journal of Sericultural and Entomological Science
1993 Volume.35 No. 1 p.21 ~ p.27
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Studies on the Mulberry Variety"Yongchonppong"(Morus alba L.)
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ÚÓÎÃñç/Park, Kwang Jun
åÄàüæï/ì°ßÓéô/Ïíî¤öÒ/ÑÑçÈý³/ÑÑÐñà¸/õËò³úû/Yang, Seong Yeol/Lee, Sang Uk/Kwon, Jae Chil/Kim, Young Hun/Kim, Ki Seok/Choi, Zi Hiong
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Abstract
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Yongchonppong is liable to withering of leaf and it is lowering leaf value for the feed. In this respect covering of the vinylon gauze over the feed has been carried out in the branch rearing system to sustain leaf value as itself. The covering of the vinylon gauze over Yongchonppong marks 7% and 9% increment of cocoon yield in dry season, spring rearing season. as compared to the non-covering of the vinylon gauze over Kaeryangppong and Yongchonppong, respectively. There was no significant differences in cocoon shell percentages of them. In more humid environment than average relative humidity in Korea the rearing results of "Yongchonppong" was improved by covering with vinylon gauze after feeding compared with the non-covered rearing. However, the vinylon gauge covering was not effective for improving the rearing results of "Kaeryangppong" . No effect of the vinylon gauze covering was seen in the area where it frequently rains and raining season lasts. In case of the non-covering of the vinylon gauze, Yongchonppong reduces repidly in the first three hours of exposure to the air, as compared to Kaeryangppong, The water content reduction rate of Yongchonppong in 6 hours of exposure to the air marks 7% to so when the dry vinylon gauze cover and 17 to 26% when the wet vinylon gauze covers, as compared to 58.8% of it for the non-covering of the vinylon gauze.
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