Variation in leaf orientation and its related traits in sunflower (Helianthus annuus L.) breeding populations under high temperature

Kalyar, Tanveer; Rauf, Saeed; Silva, Jaime A. Teixeira da; Iqbal, Zafar

doi:10.1016/j.fcr.2013.06.007

Cited by 12 publications

(2 citation statements)

References 20 publications

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“…Through modelling, Guilioni and Lhomme (2006) found that plants around 2 m high, with small LAI and a capitulum inclination between 45°a nd 90°, should experience lower temperatures. In addition, Kalyar et al (2013) demonstrated that a genotype with upward inclined leaves was superior to that with downward inclined leaves as it maintained lower post-noon temperature and heat injury. Leaf temperature adjustment over time was proposed as a useful trait for selecting heat-tolerant genotypes.…”

Section: Breeding For Heat Tolerancementioning

confidence: 98%

New challenges for sunflower ideotyping in changing environments and more ecological cropping systems

Debaeke

Casadebaig

Langlade

2021

OCL

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As a rainfed spring-sown crop, sunflower (Helianthus annuus L.) is increasingly exposed to negative impacts of climate change, especially to high temperatures and drought stress. Incremental, systemic and transformative adaptations have been suggested for reducing the crop vulnerability to these stressful conditions. In addition, innovative cropping systems based on low-input management, organic farming, soil and water conservation practices, intercropping, double-cropping, and/or agroforestry are undergoing marked in agriculture. Because of its plasticity and low-input requirements (nitrogen, water, pesticides), sunflower crop is likely to take part to these new agroecological systems. Aside from current production outputs (yield, oil and cake), ecosystem services (e.g. bee feeding, soil phytoremediation…), and non-food industrial uses are now expected externalities for the crop. The combination of climatic and societal contexts could deeply modify the characteristics of genotypes to be cultivated in the main production areas (either traditional or adoptive). After reviewing these changes, we identify how innovative cropping systems and new environments could modify the traits classically considered up to now, especially in relation to expected ecosystem services. Finally, we consider how research could provide methods to help identifying traits of interest and design ideotypes.

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Section: Breeding For Heat Tolerancementioning

confidence: 98%

New challenges for sunflower ideotyping in changing environments and more ecological cropping systems

Debaeke

Casadebaig

Langlade

2021

OCL

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“…High temperature during silking, pollination and grain filling profoundly affects pollen shedding and viability of sweet corn pollens. Therefore, pollen viability and filled grains or number of grains under stress conditions have a positive correlation ( Kalyar et al, 2013 ). The sugar content in kernels of sweet corn determines the quality of sweet corn ( Szymanek, Tanaś & Kassar, 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Morpho-physiological effects of environmental stress on yield and quality of sweet corn varieties (Zea mays L.)

Taş

Mutlu

2021

PeerJ

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Sweet corn is cultivated in different climatic regions of the world, and consumed either fresh or processed. Morpho-physiological effects of environmental stress on yield, yield components and quality of some sweet corn varieties were investigated in field experiments conducted at Southeastern Anatolia Region of Turkey during 2019 and 2020 growing seasons. The experimental lay out was randomized blocks with three replicates. Eight candidates and two control sweet corn varieties classified as moderate maturity (FAO 650–700) were used in field experiment. Mean values of pollen fertility rate (PFR, %), total soluble solids (TSS, °Brix), abscisic acid (ABA, nmol/g DW), ear length (EL, cm), plant height (PH, cm), number of grains per cob (CGN, grain) and fresh cob yield (FCY, t ha−1) were significantly different between years and sweet corn varieties. The PFR, TSS, ABA, EL, PH, CGN and FCY ranged from 40.29–67.65%, 13.24–20.09 °brix, 7.74–21.04 nmol/g DW, 9.69–15.98 cm, 97.80–171.34 cm, 289.15–420.33 grain and 4.15–10.23 t ha−1 respectively. The FCY, yield components and PFR values in the second year that had a higher temperature and lower relative humidity were lower compared to the first year, while ABA and TSS values were higher in the second year. Statistically significant correlations were recorded between the parameters investigated except FCY and TSS. The FCY and other parameters of sweet corn varieties, which produced high ABA phytohormone, were high, and the ABA hormone significantly contributed to plant growth under stress conditions. The results revealed that the PFR physiological parameter and ABA hormone in the plants provide important information about stress level and stress tolerance level of the cultivars, respectively. Despite adverse environmental stress conditions, the FCY of ŞADA-18.7 variety, one of the candidate varieties, was higher than that of the control and the mean value of the experiment.

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Breeding Strategies for Sunflower (Helianthus annuus L.) Genetic Improvement

Rauf

2019

Advances in Plant Breeding Strategies: Industrial and Food Crops

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Variation in leaf orientation and its related traits in sunflower (Helianthus annuus L.) breeding populations under high temperature

Cited by 12 publications

References 20 publications

New challenges for sunflower ideotyping in changing environments and more ecological cropping systems

New challenges for sunflower ideotyping in changing environments and more ecological cropping systems

Morpho-physiological effects of environmental stress on yield and quality of sweet corn varieties (Zea mays L.)

Breeding Strategies for Sunflower (Helianthus annuus L.) Genetic Improvement

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