Vol. 10, Special Issue 12 (2021)

Author(s):
Sardar Singh and Murali S

Abstract:
The present investigation was conducted at Regional Sericultural Research Station, Miran sahib, Jammu for introduction of summer crop and to study the impact on autumn crop. The hybrid, SH₆×NB₄D₂ was shortlisted for field trial of summer and autumn season (2020) from the evaluated hybrids during previous studies (2018 & 2019) at RSRS, Jammu and the DFLs were procured from SSPC, Dehradun and were incubated at RSRS, Jammu and REC, Ghumarwin (H.P). The chawki reared worms were distributed to each location of Lamberi (Rajouri Dist.), Dharmakot (Kathua Dist.) and Majalta (Udhampur Dist.) at Jammu division and Soi, Panol & Naswal (Bilaspur Dist.) & Sanot (Kangra Dist.) at Himachal Pradesh having totally nine selected rearers provided with 50 DFLs (20000 worms) per rearer. The average yield recorded during summer crop of about 44.40 Kg/100 DFLs at Jammu division whereas Himachal Pradesh with average yield of about 35.35 Kg/100 DFLs was recorded and control batch reared at RSRS, Jammu was recorded yield about 51.87 Kg/100 DFLs during summer crop whereas autumn crop an average yield recorded of about 40.80 Kg/100 DFLs at Jammu division whereas Himachal Pradesh with average yield of about 43.67 Kg/100 DFLs and control batch was recorded about 44.75 Kg/100 DFLs. The impact of introduction by summer crop revealed that percent yield gain over traditional field rearing from experimental field trial about 67.14 (%) and 44.70 (%) yield gain record in autumn season at Jammu division and Himachal Pradesh respectively.