Influence Of Temperature Shift After Flowering on Dry Matter Partitioning In Two Cultivars of Snap Bean (<i>Phaseolus Vulgaris</i>)That Differ In Heat Tolerance

Omae, Hide; Kumar, Ashok; Kashiwaba, Kouichi; Shono, Masayuki

doi:10.1626/pps.10.14

Cited by 12 publications

(10 citation statements)

References 5 publications

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“…Haisbushi but not for cv. Kentucky Wonder (Omae et al, 2007). Number of pods/plants decreased under HT condition for tepary bean G40022 and G40277 accessions, which is in agreement with the results of Rainey and Griffiths (2005).…”

Section: Heat Stress Induced Changes In Shoot Attributessupporting

confidence: 86%

Special Issue 2021

2021

Aust J Crop Sci

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Section: Heat Stress Induced Changes In Shoot Attributessupporting

confidence: 86%

Special Issue 2021

2021

Aust J Crop Sci

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“…A rise of even 1-2°C above the threshold temperature critically impairs the yield and related attributes of leguminous crops (Barghi et al 2012;Kumar et al 2013) as reported in snap bean (Omae et al 2007;Kumar et al 2008a), soybean (Board and Kahlon 2011;Djanaguiraman et al 2011), and chickpea (Kumar et al 2013). In chickpea, the yield loss has been proposed to be due to the heat stress which induced multiple structural and functional abnormalities such as callose deposition in both pollen as well as stigma, the former has been reported to be clearly more sensitive (Devasirvatham et al 2013).…”

Section: Reproductive Developmentmentioning

confidence: 99%

Temperature sensitivity of food legumes: a physiological insight

Bhandari

Sharma

Rao³

et al. 2017

Acta Physiol Plant

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Of the various environmental stresses that a plant can experience, temperature has the widest and most far-reaching effects on legumes. Temperature extremes, both high (heat stress) and low (cold stress), are injurious to plants at all stages of development, resulting in severe loss of productivity. In response to unfavorable temperatures, plant biomolecules such as stress proteins, enzymatic and non-enzymatic antioxidants, organic osmolytes and phytohormones come into play, usually, as a part of the plant defense mechanisms. The accumulation of these molecules, which may be useful as metabolic indicators of stress tolerance, depend on the plant species exposed to the temperature stress, its intensity and duration. Some of these molecules such as osmolytes, non-enzymatic antioxidants and phytohormones may be supplied exogenously to improve temperature stress tolerance. Legumes show varying degrees of sensitivity to high and low-temperature stresses, which reduces their potential performance at various developmental stages. To address the ever-fluctuating temperature extremes that various legumes are being constantly exposed, efforts are being made to develop tolerant plant varieties via conventional breeding methods as well as more recent molecular breeding techniques. In this review, we describe the progress made towards the adverse effects of abnormal temperatures on various growth stages in legumes and propose appropriate strategies to resolve these effects.

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“…Heat stress in bean cultivation generates a series of irreversible damages in the metabolism and development of plants ( Omae et al, 2007 , 2012 ; Porch and Hall, 2013 ; Sofi and Maduraimuthu, 2017 ; Suárez et al, 2020 ), according to observations made across different environments ( Costa et al, 2000 ; Omae et al, 2012 ; Suárez et al, 2018a , b , 2020 ). At a physiological level, several processes are affected ( Wentworth et al, 2006 ), photosynthesis is highly sensitive to high temperatures ( Mathur et al, 2014 ) generating a decrease in the photosynthetic absorption of CO 2 ( Perdomo et al, 2016 ); the leaf senescence and expansion is reduced ( Wahid et al, 2007 ) as well as the grain yield ( Suárez et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Water Use, Leaf Cooling and Carbon Assimilation Efficiency of Heat Resistant Common Beans Evaluated in Western Amazonia

et al. 2021

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In our study, we analyzed 30years of climatological data revealing the bean production risks for Western Amazonia. Climatological profiling showed high daytime and nighttime temperatures combined with high relative humidity and low vapor pressure deficit. Our understanding of the target environment allows us to select trait combinations for reaching higher yields in Amazonian acid soils. Our research was conducted using 64 bean lines with different genetic backgrounds. In high temperatures, we identified three water use efficiency typologies in beans based on detailed data analysis on gasometric exchange. Profligate water spenders and not water conservative accessions showed leaf cooling, and effective photosynthate partitioning to seeds, and these attributes were found to be related to higher photosynthetic efficiency. Thus, water spenders and not savers were recognized as heat resistant in acid soil conditions in Western Amazonia. Genotypes such as BFS 10, SEN 52, SER 323, different SEFs (SEF 73, SEF 10, SEF 40, SEF 70), SCR 56, SMR 173, and SMN 99 presented less negative effects of heat stress on yield. These genotypes could be suitable as parental lines for improving dry seed production. The improved knowledge on water-use efficiency typologies can be used for bean crop improvement efforts as well as further studies aimed at a better understanding of the intrinsic mechanisms of heat resistance in legumes.

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Influence Of Temperature Shift After Flowering on Dry Matter Partitioning In Two Cultivars of Snap Bean (Phaseolus Vulgaris)That Differ In Heat Tolerance

Cited by 12 publications

References 5 publications

Special Issue 2021

Special Issue 2021

Temperature sensitivity of food legumes: a physiological insight

Water Use, Leaf Cooling and Carbon Assimilation Efficiency of Heat Resistant Common Beans Evaluated in Western Amazonia

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