TY - JOUR
T1 - Screening of rice landraces and their morpho-biochemical basis of resistance against Cnaphalocrocis medinalís
AU - Kumar, Sandeep
AU - Yadav, Dinesh Kumar
AU - Sharma, Kuldeep
AU - Yadav, Suresh
AU - Vijay Kumar, L.
AU - Deeksha, M. G.
N1 - Publisher Copyright:
© 2021 Indian Council of Agricultural Research. All rights reserved.
PY - 2021/3
Y1 - 2021/3
N2 - Host plant resistance is very important in contrast of spraying insecticide to manage leaf folder, Cnaphalocrocis medinalis. From wide germplasm of rice, fifty rice landraces were screened and traits for resistance are characterized against leaf folder under natural climatic conditions. The occurrence % leaf damage showed significant variation and revealed the presence of resistance-susceptibility status among tested land races of rice. The infestation of leaf folder recorded significantly less in highly resistant landraces, viz. Rajboga, Kari kagga and Mapilai samba -1 (0.55-0.90%) in comparison to the highly susceptible genotypes, viz. GK -5, Krishna leela, Kaggalikearona, Bangaragandu, Kundipullan, Puttabatta-2 and Navara (66.03 to 74.77%). The correlation analysis revealed that plant height, length of flag leaf and panicle length had negative significant influence on the leaf folder % leaf damage infestation and offered resistance. The amount of total sugar and reducing sugars, free amino acids, nitrogen and phosphorus were recorded higher in the susceptible entries whereas, total phenols, potassium and tannins were found significantly higher in resistant genotypes.
AB - Host plant resistance is very important in contrast of spraying insecticide to manage leaf folder, Cnaphalocrocis medinalis. From wide germplasm of rice, fifty rice landraces were screened and traits for resistance are characterized against leaf folder under natural climatic conditions. The occurrence % leaf damage showed significant variation and revealed the presence of resistance-susceptibility status among tested land races of rice. The infestation of leaf folder recorded significantly less in highly resistant landraces, viz. Rajboga, Kari kagga and Mapilai samba -1 (0.55-0.90%) in comparison to the highly susceptible genotypes, viz. GK -5, Krishna leela, Kaggalikearona, Bangaragandu, Kundipullan, Puttabatta-2 and Navara (66.03 to 74.77%). The correlation analysis revealed that plant height, length of flag leaf and panicle length had negative significant influence on the leaf folder % leaf damage infestation and offered resistance. The amount of total sugar and reducing sugars, free amino acids, nitrogen and phosphorus were recorded higher in the susceptible entries whereas, total phenols, potassium and tannins were found significantly higher in resistant genotypes.
KW - Cnaphalocrocis medinalis
KW - Host plant resistance
KW - Landraces
KW - Rice
UR - http://www.scopus.com/inward/record.url?scp=85114132980&partnerID=8YFLogxK
U2 - 10.56093/ijas.v91i3.112495
DO - 10.56093/ijas.v91i3.112495
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:85114132980
SN - 0019-5022
VL - 91
SP - 382
EP - 387
JO - Indian Journal of Agricultural Sciences
JF - Indian Journal of Agricultural Sciences
IS - 3
ER -