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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Sericultural and Entomological Science
Journal Basic Information
Journal DOI :
Korean Society of Sericultural Science
Editor in Chief :
Volume & Issues
Volume 44, Issue 2 - Dec 2002
Volume 44, Issue 1 - Mar 2002
Volume 4, Issue 2 - 00 2002
Selecting the target year
The Breeding of “Sawonppong 27” that is Autotetraploid of the Sangilppong which has Good Mulberry Dwarf Resistance (Morus spp.)
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 1~3
The colchicine drop treatment is done on the growthpoint of the Sangilppong, which is the leading mulberry variety for mulberry dwarf resistance. So the breeding of the Sawonppong 27, that is tetraproidy, is succeeded and the chracteristics of this is as follows. The chromosome number of it is 2n=56, tetraproidy. The spring sprouting stage is midseason mulberry variety, and the leaf has a broad width shape that the oval leaf and the 3 lobed leaf exist simultaneously, The thickness of leaf is thick, the branch length and internorde length are short. The nonbudding of basal part does not exist and the cold hardness of this is stronger than the Sangilppong.
Morphological Characteristics and Physiological Effects of Mulberry Leaves and Fruits with Wild Varieties
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 4~8
We conducted this study to investigate the morphological characteristics and physiological effects of mulberry leaves and fruits with wild varieties. Morphologically sampling materials were showed Morus bombycis type and Morus alba type characteristics. Water contents of mulberry fruits were higher than that of mulberry leaves. Sugar degree of sampling materials was 5.1∼22.7 Brix %. The yield of 85% MeOH extract from freezing dried Mulberry Fruits was 60.2% and Hexane, BuOH and H
O fraction from MeOH extract were 2.8%, 4.6%, 92.3% respectively. In the cholesterol-induced hyperlipidemia rats administered with subfraction of mulberry fruit extract, total cholesterol and serum triglyceride were decreased in the MeOH extract group and H
O soluble fraction group. Also H
O soluble fraction group decreased GPT, GOT and LDH level. Therefore, the above results suggested that mulberry fruit with wild varieties can help to maintain normal liver functions and to protect hyperlipidemia.
The Fertility and Some Agronomic Characteristics of Morus tiliaefolia Makino Growing Wild in the Korean Peninsula
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 9~12
The agronomic characteristics and fertility of Morus tiliaefolia growing wild in Korean peninsula are as follows. The possibility of seed formation is 46∼80% and that of germination is 19∼28%. The height period of making flower is April 4-May 3, it means that is later than Morus bombycis, faster than Kaeryangppong. Green tip sprouting stage in spring is April 21∼24. This is later than Morus bombycis and faster than Kaeryangppong. The leaf has very big width and the ratio of leaf length to leaf width is 1.05. The thickness of leaf is thicker than Morous bombycis. There are a lot of matter of soluble nitrogen free, crude ash, and are little crude protein, crude fat and crude fiber in chemical contents of maturation leaf. The attitude of low cutting is spread out type and the branch is long type. The internord length is long. It is weak against cold and die-back.
The Morphological Characteristics of Morus tiliaefolia Makino Growing Wild in the Korean Peninsula
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 13~18
The morphorogical characteristics of the Morus tiliaefolia growing wild in the Korean peninsula are as follows. The chromosome number of somatic cell is 2n=84,that is hexaploid. The shape of male inflorescence is a long cylinder shape of 3.6∼6.0 cm. The length of female inflorescence is 1.8 cm, red violet or violet and the weight of mulberry fruits is 1.39∼1.65 g. The winter bud is very big in comparison with the branch and the accessory bud does not exist. The leaf is big and lobed leaf or entire leaf, the density of lenticell is 9.42
1.29 ㎠. The length of leaf trichome is 236∼438 ㎛ and the distribution density is 16∼37/25 ㎟ and heigh density of leaf back. The trichome shape of the leaf surface is cylinder shaped, in the leaf back it is thin and long corn shaped.
The Fertility and the Characteristics of Mulberry Fruit on the Suwonppong for Silkworm Rearing (Morus spp.)
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 19~21
Suwonppong, which is the leading mulberry variety, has the fertility and the characteristics of fruit that are listed bellow. The percent of making seed is 61.8%, the percent of sank seed is 54.7% and the percent of germination is 95%. the percent of cross success is 31.8%. The single fruit weight of mulberry fruit is 3.58 g and its size is medium and big, the color of it is black. The sugar content of mulberry fruit is 15.7%(Brix), the total acidity is 0.18%, and the pH is 6.3. The maturing period of mulberry fruit is medium maturity and the degree of fruit setting is the same as Cheongilppong.
The Agronomic Characteristics of the Yongcheonppong (Morus spp.) Appropriate for the Cold Region where the Freezing Injury Occured and Consideration on the Result of the Silkworm Rearing Affected by the Occured Frequency of the Freezing Injury
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 22~27
The Yongcheonppong was cultured in the form of a dense mulberry field coverd with polyethylene film and was tested in Suwon and Chunchon. The agronomic characteristic and some consideration on the result of the silkworm rearing were as follows. The Yongcheonppong was the medium budding variety and was longer in length of young shoots than the Kaeryangppong. The Yongcheonppong was higher in leaf yield in spring than the Kaeryangppong and was lower in leaf yield in autumn than the Kaeryangppong to the contrary. The Yongcheonppong was a little higher in the number of branches and was longer in the length of the branch than the Kaeryangppong and so was appropriate for rearing with mulberry shoots. Yongcheonppong was more resistant to twig blight and die-back and was a little susceptible to dwarf disease. As the Yongcheonppong was most resistant to the freezing injury, it was appropriate for the cold region and enabled the farmers to rear some amount of silkworms every year. In Chunchon, The Yongcheonppong increased by 11% in cocoon yield than the Kaeryangppong when the freezing injury occurred 1 year out of 2 years and produced about the same as the Kaeryangppong in cocoon yield when the freezing injury occurred 1 year out of 3 years.
Nomenclatural Studies on Paecilomyces tenuipes in Korea
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 28~31
Paecilomyces tenuipes (Nunkkot Dongchunghacho) was erroneously treated in three different scientific names: Paecilomyces japonica, Isaria japonica and Paecilomyces tenuipes. Since the fungus has been widely used in various fields of research and industry, its nomenclatural uncertainty caused many problems. Therefore, morphological studies of Korean isolate were carried out and compared with published data on other isolates of P. tenuipes to establish its proper taxonomic position.
Occurrence and Characteristics of other Fungi in the Artificial Cultivation Farms of Paecilomyces tenuipes
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 32~36
Occurrence and characteristics of infectious fungi and physiologically abnormal Paecilomyces tenuipes were examined. These unfavorable fungi are recently known to cause yield loss, decreased quality of products in artificial cultivation farms of P. tenuipes. Total 529 fungal isolates were collected from 22 farms of 7 provinces. These isolates were composed of physiologically abnormal P. tenuipes strains and other infectious fungal strains, which constituted 23.2% and 50.9%, respectively. Physiologically abnormal P. tenuipes strains showed irregular synemata, and absence of local color. They were divided into 4 types or C-l, C-2, C-3 and C-4. Other infectious fungal strains were identified to 5 species, Beauveria bassiana, Fusarium sp., P fumosoroseus, Tricothecium roseum, Aspergillus parasiticus, which were 22.1, 13.8, 7.6, 4.0 and 3.4%, respectively. All of them were hyphomycetous fungi, did not produce synemata, and revealed faster growth rate than that of P. tenuipes.
The Functional Effects of Polyester treated with silk sericin
Journal of Sericultural and Entomological Science, volume 44, issue 1, 2002, Pages 37~41
The attaching treatment of sericin onto polyester fiber was attempted to improve its sanitary properties. Generally, sericin, a gummy material covering the outer layer of silk filament, is subjected to be removed during degumming process of silk textile process. For this study, sericin particle dissolved within the degumming waste water could be collected by sedimentation of polyaluminium chloride. It was revealed that sericin particle were attached onto the surface of polyester fiber evenly by treatment of glutaraldehyde, a crosslinking agent. A frictional static charge of the treated polyester fabric could be improved, while its hygroscopic property was little changed.