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Phenotyping and Genotype x Environment Interaction of resistance to leaffolder, Cnaphalocrocis medinalis Guenee (Lepidoptera: Pyralidae) in rice

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Title Phenotyping and Genotype x Environment Interaction of resistance to leaffolder, Cnaphalocrocis medinalis Guenee (Lepidoptera: Pyralidae) in rice
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Creator Padmavathi Chintalapati, Divya Balakrishnan, Tripura Venkata VGN, Sumalatha Javvaji, Subba Rao LV, Sarla Neelamraju, Gururaj Katti
 
Subject leaffolder, resistance, stability, phenotyping traits, GGE, cluster, AMMI
 
Description Not Available
Rice leaffolder, Cnaphalocrocis medinalis is one of the key foliage feeding insects of
great concern throughout Asia as it results in significant yield losses. High visibility of
damage is triggering farmers to apply toxic pesticides for its management. Therefore,
it is vital to identify new stable sources of resistance for leaffolder. Phenotyping of
160 recombinant inbred lines (RILs) of a cross between a resistant parent, W1263
and a susceptible parent, TN1 using a rapid field screening method for three seasons
resulted in identification of nine RILs as stable sources of resistance to rice leaffolder.
Phenotypic frequency distributions were found continuous indicating that the resistance
is a quantitative trait governed by polygenes. Phenotypic data for three seasons were
analyzed using Genotype and Genotype × Environment Interaction (GGE) analysis for
identification of stable resistant lines. Additive main effect and multiplicative interaction
(AMMI) analysis showed that 86.41% of the total sum of square of damaged leaf
area was attributed to genotype (GEN) effect; 0.48% to environment (ENV) effects
and 5.68% to genotype by environment (G × E) interaction effects. Damage area,
damage score and leaf length showed very high broad-sense heritability across three
environments. However, leaf width had low heritability indicating higher environment
influence. Phylogenetic analysis grouped these 160 RILs and parents into five clusters
based on resistant reaction. AMMI and GGE biplot analysis revealed that stable
genotypes G8 (MP114) and G3 (MP108) with lower damage area and damage score
can be utilized in developing cultivars with leaffolder resistance.
Not Available
 
Date 2024-06-11T14:31:36Z
2024-06-11T14:31:36Z
2019-01-01
 
Type Article
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/83551
 
Language English
 
Relation Not Available;
 
Publisher Frontiers in plant Science