Performance of Aromatic Rice Varieties Against Yellow Stem Borer Scirpophaga incertulas
Keywords:Scirpophaga incertulas, aromatic rice, deadheart, white earhead, varietal resistance, incidence, grain yield
A field experiment was carried out at the Rice Research Farm of Birsa Agricultural University, Ranchi, Jharkhand during kharif, 2018 and 2019 to assess the performance of some aromatic rice varieties against the yellow stem borer (YSB) Scirpophaga incertulas (Pyralidae: Lepidoptera) in Jharkhand. The damage caused was measured as deadheart- DH (30 and 45 DAT) and white earhead- WEH (70 and 90 DAT) at the vegetative and reproductive stages, respectively. At vegetative stage seven varieties scored 1 (PS-4, Pusa1176, PS-3, BVS-1, BR-9, BR-10, Assam culture) with 4.62 to 9.53% DH while at reproductive stage only two varieties (BR-10 and Assam Culture) scored 1 with 4.56 and 4.95% WEH. Yield potential of BR-9 (38.50 q/ ha) was significantly superior over other aromatic varieties except BR-10 and followed by Birsamati (34.30 q/ ha) and BVS-1 (33.25 q/ ha).
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