What question did this study set out to answer?

Identify spring wheat genotypes exhibiting superior resistance to spot blotch and enhanced heat tolerance using canopy temperature as an integrative selection criterion.

March 25, 2023Archives of Agriculture and Environmental ScienceOpen Access

Spot blotch disease resistance and heat stress tolerance in spring wheat (Triticum aestivum L.)

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Authors

RBRoshan BasnetNepal Agricultural Research Council LALaxman AryalNepal Agricultural Research Council BBBiswash Raj BastolaNepal Agricultural Research Council

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Implication

Field trial reveals spot blotch resistance and heat tolerance traits across spring wheat genotypes, highlighting cooler canopy temperature as an effective selection marker for breeding.

Key Points

Identify spring wheat genotypes exhibiting superior resistance to spot blotch and enhanced heat tolerance using canopy temperature as an integrative selection criterion.
Evaluated 52 spring wheat genotypes arranged in an alpha lattice design with two replications in Parwanipur, Bara, Nepal during 2017–2018.
Measured canopy temperature via infrared thermometry and scored disease severity across flag and penultimate leaves to compute the area under the disease progress curve (AUDPC).
Assessed agronomic traits—including heading days, maturity days, plant height, grains per spike, tillers per square meter, thousand-grain weight, and grain yield—using R software.
Canopy temperature, phenological intervals, plant height, yield components, and final grain yield showed highly significant variation across the 52 evaluated genotypes.
Genotype 32 achieved the highest grain yield at 5141 kg/ha, demonstrating a canopy temperature of 16.50 °C alongside flag leaf AUDPC of 279 and penultimate leaf AUDPC of 610.

Cite This Study

Basnet et al. (2023) studied this question.

synapsesocial.com/papers/6a9eaaf2ab73552a77d72a65 https://doi.org/10.26832/24566632.2023.080104

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Implication

Field trial reveals spot blotch resistance and heat tolerance traits across spring wheat genotypes, highlighting cooler canopy temperature as an effective selection marker for breeding.

Spot blotch disease resistance and heat stress tolerance in spring wheat (Triticum aestivum L.)

Discussion

Member takes

Implication

Key Points

Cite This Study

Spot blotch disease resistance and heat stress tolerance in spring wheat (Triticum aestivum L.)

Discussion

Member takes

Implication

Key Points

Cite This Study

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