Impact of abiotic stress on photosynthetic efficiency and leaf temperature in sunflower

Kulundžić, Antonela Markulj; Kovačević, Josip; Vuletić, Marija Viljevac; Josipović, Ana; Liović, Ivica; Mijić, Anto; Lepeduš, Hrvoje; Kočar, Maja Matoša

doi:10.18047/poljo.22.2.3

Cited by 17 publications

(6 citation statements)

References 18 publications

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“…The activity of RuBP is affected under drought stress. Those crops that can maintain RuBP production are more resistant to drought stress [63][64][65][66][67][68].…”

Section: Photosynthesis Reductionmentioning

confidence: 99%

Protagonist of Mineral Nutrients in Drought Stress Tolerance of Field Crops

Asghar¹,

Bashir²

2021

Abiotic Stress in Plants

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The food demand is increasing hastily, that is inducing continuous pressure on agriculture sector and industries to fulfill rising dietary needs. To meet with increasing demand, the food production must be elevated up to 70% until the year 2050. On the other hand, changing climate is disturbing crop production around the World. Crops grown under field conditions are affected by more than one abiotic stress. It is continuous task and challenge for agronomists to make crops environment hardy to obtain maximum yield. It is considered that different agronomic managements, if done appropriately, could be beneficial for increasing crop production. The optimal provision of plant nutrients can assist the crops to fight in better way with environmental stress like drought; it can help them to continue their normal metabolism even under hostile abiotic circumstances. The regions that have reduced availability of water for crop production, a balanced nutrient management can assist crops to give adequate production. Some of nutrients have potential of not only maintaining plant metabolism but also to enhance the quality of product. This chapter highlights the protagonist of plant nutrients in alleviation of drought stress in field crops.

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“…The activity of RuBP is affected under drought stress. Those crops that can maintain RuBP production are more resistant to drought stress [63][64][65][66][67][68].…”

Section: Photosynthesis Reductionmentioning

confidence: 99%

Protagonist of Mineral Nutrients in Drought Stress Tolerance of Field Crops

Asghar¹,

Bashir²

2021

Abiotic Stress in Plants

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“…Photosynthesis activity and plant development are crucial for plant growth and stable yield [12]. Nitrogen fertilization has a direct influence on canopy development, green color, and photosynthetic activity, which allows farmers to monitor crop health more quickly and easily [13][14][15][16][17][18]. An excess or lack of N in sugar beets are direct reflections of the plant phenotype.…”

Section: Introductionmentioning

confidence: 99%

Does the Amount of Pre-Sowing Nitrogen Fertilization Affect Sugar Beet Root Yield and Quality of Different Genotypes?

Varga,

Markulj Kulundžić,

Tkalec Kojić

et al. 2024

Nitrogen

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There has always been a specific focus on nitrogen fertilization in sugar beet production due to its important effect on sugar beet root yield and quality. For stable sugar beet growth and satisfactory root yield and quality, balanced N fertilization is crucial. Thus, this study aimed to investigate spring N fertilization in two seasons as the following treatments: N0—control, N1—only pre-sowing fertilization, and N2—pre-sowing with topdressing. Four different genotypes were included in the study (Serenada, Colonia, Fred, and Danton). The experiment was set up in a plain area, belonging to the temperate climate zone in Eastern Croatia (Županja and Vrbanja), with the long-term mean (LTM) (March–October) air temperature around 16 °C and the total precipitation of 515 mm. Pre-sowing N fertilization had a smaller impact on root yield in the year with higher precipitation (31% higher than LTM). Therefore, the average yields with pre-sowing fertilization (N1) and pre-sowing fertilization with top dressing (N2) were very similar and were only 7% higher than those of the control. In a season with less rainfall (29% less than LTM), pre-sowing fertilization with top dressing (N2) had a more pronounced effect on the increase in sugar beet root yield, which was 17% higher compared to that of the control treatment. The sugar beet sucrose content and quality parameters (brei impurities, loss of sugar in molasses, extractable sugar) differed when N fertilization was applied among locations in both seasons. The white sugar yield was the highest at N2 treatment with pre-sowing and topdressing N fertilization. In general, according to the average of all locations and years of research, the Serenada hybrid achieved the highest average root yield (81.1 t ha−1), while Colonia exhibited the highest root sugar content (14.5%) and white sugar yield (9.7 t ha−1).

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“…As atmospheric CO 2 concentration increases, plants reduce the opening of their stomata, thereby reducing T rates [14]. This reduction in plant T leads to weaker evaporative cooling, and this can exacerbate the increase in leaf surface temperatures [15][16][17]. Warmer and dryer climatic conditions can also lead to earlier leaf senescence, thus further reducing plant T [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Impact of Environmental Conditions and Seasonality on Ecosystem Transpiration and Evapotranspiration Partitioning (T/ET Ratio) of Pure European Beech Forest

Petrík

Zavadilová

Šigut

et al. 2022

Water

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Partitioning of evapotranspiration (ET) into transpiration (T) and residual evaporation (E) is a challenging but important task in order to assess the dynamics of increasingly scarce water resources in forest ecosystems. The T/ET ratio has been linked to the ecosystem water use efficiency of temperate forests, and thus is an important index for understanding utilization of water resources under global climate change. We used concurrent sap flow and eddy-covariance measurements to quantify the ET partitioning in pure European beech forest during the 2019–2020 period. The sap flow data were upscaled to stand level T and combined with stand level ET to calculate the T/ET ratio. We analysed intra-annual dynamics, the effect of seasonality and the impact of meteorological conditions on T, ET and T/ET. Annual T/ET of a pure European beech ecosystem was 0.48, falling at the lower end of reported global T/ET values for forest ecosystems. T/ET showed significant seasonal differences throughout spring (T/ET = 0.28), summer (T/ET = 0.62) and autumn (T/ET = 0.35). Air temperature (R2 = 0.45–0.63), VPD (R2 = 0.47–0.6) and PAR (R2 = 0.32–0.63) affected the daily dynamics of T, ET and T/ET; however, soil water content (SWC) had no significant effect. Mature European beech trees showed more anisohydric behaviour and relatively stable T/ET, even under decreasing SWC. The results improve the understanding of ecosystem scale T, ET and T/ET intra-annual dynamics and environmental constraints in anisohydric mature European beech.

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Impact of abiotic stress on photosynthetic efficiency and leaf temperature in sunflower

Cited by 17 publications

References 18 publications

Protagonist of Mineral Nutrients in Drought Stress Tolerance of Field Crops

Protagonist of Mineral Nutrients in Drought Stress Tolerance of Field Crops

Does the Amount of Pre-Sowing Nitrogen Fertilization Affect Sugar Beet Root Yield and Quality of Different Genotypes?

Impact of Environmental Conditions and Seasonality on Ecosystem Transpiration and Evapotranspiration Partitioning (T/ET Ratio) of Pure European Beech Forest

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