Influence of weather conditions on the duration of the growth season and yield of peas

Пислегина, С. С.; Четвертных, С. С.

doi:10.30766/2072-9081.2020.21.5.521-530

Cited by 7 publications

(1 citation statement)

References 2 publications

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“…At the same time, it is also noted that the current temperature regime in the region harms pea productivity. It is noteworthy that a similar influence of climatic factors was noted in other regions of Russia [43]. In the conditions of the Ural region (Republic of Bashkortostan), Kuznetsov et al [6] found that the highest yield of field peas was observed in years when the temperature during the growing season was 0.81-1.10.…”

Section: Discussionmentioning

confidence: 56%

Dependence of the Pea Grain Yield on Climatic Factors under Semi-Arid Conditions

Gudko,

Usatov,

Minkina

et al. 2024

Agronomy

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Field peas are one of the most common crops and are grown in various climatic zones. However, the productivity of this crop can be largely limited by climatic factors. This study investigated the influence of climatic factors on pea grain yield in the semi-arid conditions of the Rostov region of Russia in 2008–2020. To quantify climatic factors, agro-climatic variables were used, such as total temperatures below the minimum temperature, the number of days with temperatures below the minimum temperature, total temperatures above the critical temperature, the number of days with temperatures above the critical temperature, and the Selyaninov hydrothermal coefficient. Agro-climatic variables were calculated using daily climatic variables, such as maximum and minimum temperatures, relative air humidity, and precipitation during pea growing season (April–June). The yield of the pea varied from 90 to 250 kg/ha. In general, the productivity of peas is negatively affected by high temperatures and low humidification level. The yield is negatively correlated with accumulative temperatures above the critical temperature and the number of days with temperatures above the critical temperature and positively correlated with the Selyaninov hydrothermal coefficient and the precipitation in all analyzed areas. The influence of the accumulative temperatures above the critical temperature is the most significant. It explains between 6.6% and 78.9% of the interannual variability of the pea yield. The increase in accumulative temperatures above the critical threshold by every 1 °C will contribute to a decrease in pea grain yield by an average of 0.150 kg/ha. The maximum temperatures in May and June (the period of flowering–grain filling) have the most negative impact on the yield. A 1 °C increase in the average maximum temperature during this period will contribute to a decrease in pea yield by an average of 19.175 kg/ha. The influence of total precipitation during the growing season explains between 12.3% and 50.0% of the variability. The 1 mm decrease in the total precipitation for the growing season will lead to a decrease in pea yields by an average of 0.736 kg/ha. The results of this study can be applied to regional yield forecasting, as well as predicting the impact of climate variability on the grain yield of pea crops in arid areas.

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Section: Discussionmentioning

confidence: 56%

Dependence of the Pea Grain Yield on Climatic Factors under Semi-Arid Conditions

Gudko,

Usatov,

Minkina

et al. 2024

Agronomy

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Photosynthetic pigments activity in plants leaves under the conditions of weather anomalies

Pokhodnya

2024

BIO Web Conf.

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The global climate change growing rate causes an increase in the frequency of weather anomalies, expressed in seasonally atypical temperature rises in various regions. Meteorological anomalies affect all components of living ecosystems, in particular plant communities, and often have a negative impact, resulting in suppression of its components physiological functions, including photosynthetic activity of plants. In 2021, 2022 and 2024, summer weather anomalies were recorded in St. Petersburg at different pheno-phases of vegetation. In all three cases, the content of photosynthetic pigments (chlorophylls A and B, carotenoids) in leaves of higher plants was measured under conditions of exposure to the stress caused by seasonally atypical for the region weather conditions, as well as after the end of this factor impact in order to consider the plants capacity to restore photosynthetic pigments levels. It was shown that weather anomalies occurring in the earlier vegetation stages, when most plants of the studied region have not yet reached their maximum resistance to external stress, cause the most significant changes in their physiological state, which is slowly and not fully recovered after weather conditions normalization, while in the later pheno-phases chlorophylls levels were preserved to a greater extent.

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Assessment of the influence of genotype and climatic conditions on the elements of productivity of peas in Eastern Siberia

Кожухова

Oreshnikova

Novikov

2021

IOP Conf. Ser.: Earth Environ. Sci.

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The studies were carried out in the conditions of the Krasnoyarsk forest-steppe on the basis of the Krasnoyarsk Research Institute of Agriculture. The weather conditions of the years of the study differed from each other: 2018 - very dry Hydrothermic Coefficient (HC) 0.60; 2019 - arid HC 0.89; 2020 - moderately humidified HC 1.32. The soil of the plot is ordinary heavy loamy chernozem with an acidity of the soil solution of 6.8 and humus content of 7.8 (according to Tyurin). The researches were carried out in accordance with the guidelines for the study of the collection of the world’s genetic resources of cereal legumes. For the study, 9 samples of peas of different morphotypes were taken. The proportions of the influence of genotype and year conditions on the characteristics of the productivity of the samples were determined - the number of unproductive and productive joints, the number of beans and seeds per plant, and the length of plants. The climatic conditions of the year of cultivation had the greatest influence on the main characteristics of productivity, such as the number of beans per plant, the number of seeds per plant, and the number of productive joints. In terms of the number of beans and seeds per plant, 75% was attributed to the influence of the conditions of the year and 45% to the influence of the variety and the interaction of factors, variety x year. The length of the plants was significantly influenced by the year of cultivation - 66%, the influence of the genotype was estimated at 24%, the interaction of factors at 10%. The factor of the year had a minimal effect on the number of unproductive joints - 19%, the influence of the variety was 80%.

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Influence of weather conditions on the duration of the growth season and yield of peas

Cited by 7 publications

References 2 publications

Dependence of the Pea Grain Yield on Climatic Factors under Semi-Arid Conditions

Dependence of the Pea Grain Yield on Climatic Factors under Semi-Arid Conditions

Photosynthetic pigments activity in plants leaves under the conditions of weather anomalies

Assessment of the influence of genotype and climatic conditions on the elements of productivity of peas in Eastern Siberia

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