Vol. 7, Issue 6 (2019)
Evaluation of selected hybrids during summer and ascertain brushing dates for introduction of additional cocoon crop under subtropical condition of Jammu (J & K)
Author(s): Sardar Singh and Murali S
Abstract: Since decades North Western India is harvesting only two cocoon crops of which only spring crop is popular among sericulture farming community. A diagnostic study was conducted at Regional Sericultural Research Station Jammu in 2018 to explore the possibility of introduction of a third crop in between spring and autumn with selection of suitable hybrid and brushing date for summer rearing under sub tropical condition of Jammu. Hybrid selection was made after evaluating the pool of silkworm hybrid developed at different institutes. Brushing was ascertained after brushing the silkworm eggs at different dates. Hybrids were evaluated according to evaluation index for desired economic parameters both quantity and quality based on evaluation index developed by Mano et al. (1993). Hybrids showing the index value above 50 were shortlisted. First brushing was conducted on 10th of June 2018 with eight hybrids and shortlisted hybrids are FC1×FC2, D×O2, D×O3 and SH6×NB4D2 whereas Nine hybrids was reared during second brushing of summer season (2018), brushed on 25.06.2018. The hybrids showing the index value above 50 were shortlisted as PM×FC2, PM×CSR2, SH6×NB4D2, SK6×SK7 and D×O3. Based on the study promising silkworm hybrid and suitable date of brushing for introduction of additional summer crop under sub tropical condition has been workout.
Pages: 448-453 | 331 Views 82 Downloads
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How to cite this article:
Sardar Singh, Murali S. Evaluation of selected hybrids during summer and ascertain brushing dates for introduction of additional cocoon crop under subtropical condition of Jammu (J & K). Int J Chem Stud 2019;7(6):448-453.
