Vol. 11, Issue 6 (2022)

Author(s):
Soniya Joshi and SN Tiwari

Abstract:
Yellow Stem Borer (YSB), Scirpophaga incertulas Walker (Lepidoptera: Pyralidae) are considered to be the most destructive and dominant pests of rice crops the world over. It leads to yield loss of 3 to 95 per cent in different areas of India. The current research aimed to study a set of 62 rice germplasms of Stem Borer Screening Test (SBST) were screened under field conditions at the Crop Research Center, G.B. Pant University, Pant Nagar to find out most promising germplasm against yellow stem borer. A set of 62 diverse genotypes that comprises of released varieties, hybrids and selected genotypes from germplasm collection were screened for yellow stem borer resistance under artificial screening methods. In this experiment 14 germplasms found moderately susceptible in SBST-I while 2 germplasms found resistant and 29 germplasms found moderately succeptible in SBST-II trial. It was observed that late sowing of SBST-II showed resistant than early sowing of SBST-I. The present work will be a complementary contribution to the comprehensive study of few rice germplasm lines to assess the extent of resistance to yellow stem borer, S. incertulas.