Initiated soybean breeding works under AICRP on Soybean through collection of germplasm and maintenance, generation of breeding materials through crossing programme followed by selection and evaluation. Soybean varieties, RKS 18, JS 97-52 and BNS 5 were identified as having high germinating ability (> 90 %). BNS 5, which was developed at the BNCA centre, was identified for recommendation for four climatic zones of Assam (LBV. UBV. NBP, H). Non-pubescent genotypes were identified as resistant to pre-harvest sprouting. Under saturated soil condition, soybean genotypes JS 95-60, JS 97-52, BNS 5 and Kalitur were identified as suitable. Few genotypes were identified which were found to be resistant to collar rot disease. The desirable soybean lines with respect to different traits are being tested at AAU, Jorhat after the transfer of the Project from BNCA.
Experiments conducted under AICRP on Soybean resulted in obtaining useful findings with respect to production technology on the basis of which the following recommendation were made:
(a) For late sowing condition of Assam 1st week of August sowing using soybean varieties JS 97-52 and RKS 18 is
most suitable.
(b) Ridge-furrow soybean planting (varieties, RKS 18 and JS 97-52) should be adopted for rice fallow areas of Assam.
(c) Application of crop residue @5t/h+ FYM @5th+Zinc @ 5kg/h would be an effective integrated nutrient management practice of soybean based cropping system in NE India.
The 43rd Annual Group Meeting of AICRP on Soybean was successfully organized by the department at AAU, Jorhat from 01/05/2013 to 03/05/2013.