Canopy temperature as indicator of thermal and nutrient stresses in wheat crop

Kaur, Sukhjeet; Singh, Surender; Kingra, P. K.

doi:10.54302/mausam.v69i2.355

Cited by 7 publications

(7 citation statements)

References 5 publications

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“…The coefficient of determination explained 86.7% and 73.5%; 85.8% and 65.8%; 79.8% and 67.3% variability in cowpea pod yield due to canopy temperature which was affected by crop geometry and nutrient management at 30 DAS, 50 DAS and harvest of crop, respectively. These findings confirm with the findings of Marois et al (2004); Carroll et al (2017); Kaur et al (2018). Regression studies between PAR and cowpea pod yield was depicted in Fig 2 . Here, intercepted PAR was positively correlated with pod yield of cowpea and R 2 value from 0.6596 to 0.7087 was increasing with advancement of crop growth stage.…”

Section: Regression Studiessupporting

confidence: 91%

Growth and Yield Responses of Cowpea (Vigna unguiculata L.) as Influenced by Crop Geometry and Nutrient Management Practices

Begam

Pramanick

Dutta

et al. 2022

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Background: Inclusion of legume with cereal as an intercrop ensure crop nutrition and enhanced soil quality. Combine application of organic manure with inorganic fertilizer minimizes the soil hazard and improves crop productivity in a significant manner. Methods: The experiment on Kharif maize +cowpea intercropping system was carried out at ‘Jaguli Instructional Farm’ of Bidhan Chandra Krishi Viswavidyalaya, Nadia, under the New Alluvial Zone of West Bengal in 2019-2020 to investigate the influence of crop geometry and nutrient management practices on growth and yield responses of legume (cowpea). The experiment was laid out with a split-plot design. The main plot had five crop geometry and a sub plot comprised five nutrient management practices, which were replicated thrice. Result: From the pooled data of two years experiment, the intercropping system of 1M:1C (Maize: Cowpea) (C3) perform better in respect of growth attributes, viz., leaves plant-1, LAI, branches plant-1 and CGR; yield reflecting attributes viz., pods plant-1, pod length, pod and forage yield of cowpea (1.30 and 5.49 t ha-1) and crop (maize) equivalent yield of cowpea (1.76 t ha-1) although the maximum values were attained from sole cowpea treatment (C2). Nutrient management practices with the application of 75% N as chemical + 25% N as organic with seaweed application (N2) recorded greater growth and yield viz., pod, forage and crop (maize) equivalent yield (1.51, 6 and 2.01 t ha-1), respectively. Total nodules plant-1 were significantly influenced by crop geometry and nutrient management, whereas the total chlorophyll content of cowpea was significantly varied with nutrient management. Regression studies depicted the negative functional relationship between pod yield and canopy temperature, whereas the relationship between intercepted photosynthetic active radiation (PAR) and pod yield was positive.

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Section: Regression Studiessupporting

confidence: 91%

Growth and Yield Responses of Cowpea (Vigna unguiculata L.) as Influenced by Crop Geometry and Nutrient Management Practices

Begam

Pramanick

Dutta

et al. 2022

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“…CT at the heading stage (CT HS ) was low in heat-tolerant genotypes as compared to heat-sensitive genotypes. Low CT was significantly associated with grain yield in a number of studies ( Guo et al., 2016 ; Kaur et al., 2018 ; Liang et al., 2018 ; Sohail et al., 2020 ). In previous studies, CT was established as a selection criterion as it showed a high correlation with delay in the senescence of leaves ( Fang et al., 2017 ), stomatal conductance ( Bonari et al., 2020 ), leaf and stem wax ( Mondal et al., 2015 ), root system architecture ( Pinto and Reynolds, 2015 ), grain/spike ( Sohail et al., 2020 ), and 1000 grain weight ( Gulnaz et al., 2019 ).…”

Section: Discussionmentioning

confidence: 98%

Investigating the impact of terminal heat stress on contrasting wheat cultivars: a comprehensive analysis of phenological, physiological, and biochemical traits

Kumar,

Chugh,

Kumar

et al. 2023

Front. Plant Sci.

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Terminal heat stress has become one of the major threats due to global climate change which is significantly affecting the production and productivity of wheat crop. Therefore, it is necessary to identify key traits and genotypes to breed heat-tolerant wheat. The present study was undertaken with the objective of comparing the effects of heat stress (HSE) and extended heat stress (EHSE) on phenological-physio-biochemical traits of contrasting heat-tolerant and heat-susceptible genotypes during the reproductive phase. Phenological traits exhibited significant reduction under EHSE compared to HSE. Heat-tolerant genotypes maintained balanced phenological-physio-biochemical traits, while heat-sensitive genotypes showed significant reductions under both stress regimes. Among phenological traits, DM (R2 = 0.52) and BY (R2 = 0.44) have shown a positive effect on seed yield, indicating that biomass and crop duration contributed to the yield advantage under stress. During the grain filling stage, both the normalized difference vegetation index (NDVI) and chlorophyll (Chl) exhibited consistently positive impacts on grain yield under both HSE and EHSE conditions. This could be attributed to the enhanced photosynthesis resulting from delayed senescence and improved assimilate remobilization under terminal heat stress. The biochemical activity of superoxide dismutase (SOD), peroxidase (POX), and ascorbate peroxidase (APX) was induced in tolerant genotypes under HSE. The correlation of canopy temperature with phenological-physio-biochemical traits remained static under HSE and EHSE, suggesting CT as the best selection parameter for heat tolerance. The traits showing a positive association with yield and that are less affected under stress could be used for selecting tolerant genotypes under stress environments. These tolerant genotypes can be used to develop mapping populations to decipher the genes conferring tolerance as well as to study the molecular basis of tolerance.

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Section: Discussionmentioning

confidence: 98%

Abiotic Stress in Plants: Sustainability and Productivity

2024

Frontiers Research Topics

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Frontiers is more than just an open access publisher of scholarly articles: it is a pioneering approach to the world of academia, radically improving the way scholarly research is managed. The grand vision of Frontiers is a world where all people have an equal opportunity to seek, share and generate knowledge. Frontiers provides immediate and permanent online open access to all its publications, but this alone is not enough to realize our grand goals. Frontiers journal seriesThe Frontiers journal series is a multi-tier and interdisciplinary set of openaccess, online journals, promising a paradigm shift from the current review, selection and dissemination processes in academic publishing. All Frontiers journals are driven by researchers for researchers; therefore, they constitute a service to the scholarly community. At the same time, the Frontiers journal series operates on a revolutionary invention, the tiered publishing system, initially addressing specific communities of scholars, and gradually climbing up to broader public understanding, thus serving the interests of the lay society, too. Dedication to qualityEach Frontiers article is a landmark of the highest quality, thanks to genuinely collaborative interactions between authors and review editors, who include some of the world's best academicians. Research must be certified by peers before entering a stream of knowledge that may eventually reach the public -and shape society; therefore, Frontiers only applies the most rigorous and unbiased reviews. Frontiers revolutionizes research publishing by freely delivering the most outstanding research, evaluated with no bias from both the academic and social point of view. By applying the most advanced information technologies, Frontiers is catapulting scholarly publishing into a new generation. What are Frontiers Research Topics?Frontiers Research Topics are very popular trademarks of the Frontiers journals series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area.

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Canopy temperature as indicator of thermal and nutrient stresses in wheat crop

Cited by 7 publications

References 5 publications

Growth and Yield Responses of Cowpea (Vigna unguiculata L.) as Influenced by Crop Geometry and Nutrient Management Practices

Growth and Yield Responses of Cowpea (Vigna unguiculata L.) as Influenced by Crop Geometry and Nutrient Management Practices

Investigating the impact of terminal heat stress on contrasting wheat cultivars: a comprehensive analysis of phenological, physiological, and biochemical traits

Abiotic Stress in Plants: Sustainability and Productivity

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