http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Narayanaswamy, K. C,Dandin, S. B. 한국잠사학회 1998 한국잠사곤충학회지 Vol.40 No.1
Exposure of freshly laid eggs of Exorista bombycis(Louis) to volatiles emanating from bulbs Allium sativum L. for different durations resulted in significant reduction in their hatchability. Maggots hatched from the eggs exposed for 64 h and 72 h were failed to emerge from host larvae. The duration of developtal stages pof E. bombycis was prolonged besides reduction in rate of pupation and adult emergence as the egg exposure period increased. The findings are interpreted as the chronic effects of volatiles of garlic affecting maggots fnllowing developmental defects sustainable during embryonic development. The known major chemical components of A. sativum such as allicin, thioacrolein, ajoene, 2-propene sulfenic acid, 2-propene thiol and propylene were presumed to be responsible for the adverse consequences reported in this paper.
Kumar, Virendra,Nataraju, B.,Thiagarajan, T.,Dandin, S.B. Korean Society of Sericultural Science 2003 International Journal of Industrial Entomology Vol.6 No.1
Systemic fungicides viz., Bavistin and Beyleton are reported to have curative effect against the infection of Beauveria bassiana in silkworm Bombyx mori L. To understand the influence of the systemic fungicides on the disease suppression/development, hematological studies were carried out. There was an increase in the percent total hemocyte count, granulocyte and plasmatocyte in silkworm treated with the systemic fungicides. It possibly indicates the influence of systemic fungicide on the hemocyte mediated defense system leading to the higher resistance and suppression of disease development.
Stimulation of Fecundity through Antennal Amputation in the Mulberry Silkworm, Bombyx mori L.
Singh, Ravindra,Kumar, Virendra,Kariappa, B.K.,Dandin, S.B.,Rao, D.Raghavendra Korean Society of Sericultural Science 2004 International Journal of Industrial Entomology Vol.8 No.2
Stimulation of fecundity following female antennal amputation has been reported for the first time in silkworm. Antennal amputation caused significant increase in fecundity in two newly evolved multivoltine silkworm breeds viz., BL 67 and 96A. This study indicated better chances for increasing egg yield and the increase in fecundity may be attributed to the action of some neurohormones. Significance of antennal amputation in silkworm has been discussed.
Rao, P. Sudhakara,Nataraju B.,Balavenkatasubbaiah M.,Dandin S.B. Korean Society of Sericultural Science 2006 International Journal of Industrial Entomology Vol.13 No.2
The use of commercial silkworm hybrids resistant to important silkworm diseases is economical and better option particularly in tropical areas. This necessitated the evolution of productive bivoltine silkworm breeds non-susceptible to $BmDNV_1$. Non-susceptibility to $BmDNV_1$, infection was found to be controlled by a single recessive gene, nsd-l or a dominant gene, Nid-l. A major dominant/recessive gene confers resistance to $BmDNV_1$, from potent donor parents have been transferred to 10 productive but susceptible bivoltine silkworm strains through conventional breeding methods. By utilizing these breeds prepared 25 hybrids $(5{\times}5)$ and hybrid evaluation was carried out to identify most promising hybrids resistant to $BmDNV_1$. All these hybrids are inoculated with $BmDNV_1$ inoculum along with productive control hybrid $CSR2{\times}CSR4$ and reared under standard rearing procedure. Based on inoculated rearing and test reeling results, two most promising hybrids $(CSR18DR{\times}CSR29DR\;and\;CSR21DR{\times}CSR50DR)$ were selected for commercial exploitation. The selected hybrids have shown a survival rate of >85% with productive traits, where as control hybrid have shown 11.1% survival with inferior cocoon traits. The methodologies adopted were discussed.
Parthenogenesis in Silkworm, Bombyx mori L.
Gangopadhyay Debnirmalya,Singh Ravindra,Kariappa B. K.,Dandin S. B. Korean Society of Sericultural Science 2005 International Journal of Industrial Entomology Vol.10 No.1
Parthenogenesis in mulberry silkworm, Bombyx mori L. acquires immense use in the development of outstanding homozygous lines with higher viability, hybrid vigour, combining ability and less phenotypic variability. It can serve as a powerful tool in controlling sex of the offsprings as well as a useful tool in selection. In fact India is the second largest silk producing country in the world next only to China and all the five types of natural silks viz., mulberry, oak tasar, tropical tasar, muga and eri are produced in India. However, little information is available on the role of artificial parthenogenesis in the development of superior silkworm breeds. This paper overviews some important studies carried out on artificial parthenogenesis, and outline of different types of parthenogenesis, methods of induction of artificial parthenogenesis, factors responsible for successful parthenogenetic development, cytogenetics of artificial parthenogenesis and role of artificial parthenogenesis in silkworm breeding. Besides, an attempt is made to describe briefly about parthenogenetic engineering which includes cloning in silkworm, artificial insemination, chimeras, hybridization, chromosomal substitution and recombinant DNA in silkworm.
Susheelamma, B.N.,Kamble, Chandrakanth,Dandin, S.B. Korean Society of Sericultural Science 2002 International Journal of Industrial Entomology Vol.4 No.2
Studies on the interrelationship between biological yield and harvest index, and their association with shoot rearing were carried out in 9 promising mulberry genotypes, which indicated significant variations among genotypes. Biological yield had close association with leaf yield components indicating that they are inter-related for higher productivity in mulberry, Biological yield revealed highly significant positive correlation with important leaf yield components. However height of the longest branch showed negative correlation with biological yield. Genotypes with higher biological yield associated with low ratio of stem weight to leaf weight and high Harvest index on dry weight basis are to be selected for shoot rearing. Biological yield recorded on fresh weight basis had less impact on the present study in comparison to dry weight basis.
Rao, P. Sudhakara,Nataraju B.,Balavenkatasubbaiah M.,Dandin S.B. Korean Society of Sericultural Science 2006 International Journal of Industrial Entomology Vol.13 No.2
Combining ability and hybrid vigour analysis was carried out in hybrids between newly developed non-susceptible lines to BmDNV1 and popular bivoltine breeds for certain quantitative traits viz. Pupation rate, Cocoon yield, Cocoon weight, Cocoon shell weight and Cocoon shell ratio, Survival rate against BmIFV and BmNPV. General combining ability (GCA) effects revealed that among the lines CSR2DR was found good general combiner exhibiting significant GCA effects for six characters, out of seven traits evaluated. Among testers CSR28DR was found as good combiner exhibiting significant GCA effects for six traits. Out of 36 hybrids made between $resistant{\times}resistant,\;resistant{\times}susceptible\;and\;susceptible{\times}susceptible$ breeds, one hybrid $CSR21DR{\times}CSR28DR$ exhibited significant SCA effects for six traits. The selected hybrid $CSR21DR{\times}CSR28DR$ also exhibited significant positive heterosis and heterobeltiosis expressions for maximum traits and could be exploited as commercial silkworm hybrid resistant to important viral diseases.
( P. Sudhakara Rao ),( B. Nataraju ),( M. Balavenkatasubbaiah ),( S. B. Dandin ) 한국잠사학회 2006 International Journal of Industrial Entomology Vol.13 No.2
The use of commercial silkworm hybrids resistant to important silkworm diseases is economical and better option particularly in tropical areas. This necessitated the evolution of productive bivoltine silkworm breeds non-susceptible to BmDNV1. Non-susceptibility to BmDNV1 infection was found to be controlled by a single recessive gene, nsd-l or a dominant gene, Nid-l. A major dominant/recessive gene confers resistance to BmDNV1 from potent donor parents have been transferred to 10 productive but susceptible bivoltine silkworm strains through conventional breeding methods. By utilizing these breeds prepared 25 hybrids (5 × 5) and hybrid evaluation was carried out to identify most promising hybrids resistant to BmDNV1. All these hybrids are inoculated with BmDNV1 inoculum along with productive control hybrid CSR2 × CSR 4 and reared under standard rearing procedure. Based on inoculated rearing and test reeling results, two most promising hybrids (CSR18DR × CSR29DR and CSR21DR × CSR50DR) were selected for commercial exploitation. The selected hybrids have shown a survival rate of >85% with productive traits, where as control hybrid have shown 11.1 % survival with inferior cocoon traits. The methodologies adopted were discussed.