Sunflower Breeding

Meena, H.P.; Sujatha, M.

doi:10.1007/978-981-16-9257-4_19

Cited by 7 publications

(1 citation statement)

References 129 publications

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“…The sunflower is the fifth largest oilseed crop in the world. Globally, over 27.36 million hectares are planted, producing a world average yield of 204 tons per unit area ( Meena & Sujatha, 2022 ). With an oil content of 40–50% and a protein content of 17–20%, the sunflower has considerable potential to bridge the gap between global production and the demand for edible oils and animal feed ( Hussain et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Characterization of PYL gene family and identification of HaPYL genes response to drought and salt stress in sunflower

Wang,

Zhou,

Zou

et al. 2024

PeerJ

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In the context of global climate change, drought and soil salinity are some of the most devastating abiotic stresses affecting agriculture today. PYL proteins are essential components of abscisic acid (ABA) signaling and play critical roles in responding to abiotic stressors, including drought and salt stress. Although PYL genes have been studied in many species, their roles in responding to abiotic stress are still unclear in the sunflower. In this study, 19 HaPYL genes, distributed on 15 of 17 chromosomes, were identified in the sunflower. Fragment duplication is the main cause of the expansion of PYL genes in the sunflower genome. Based on phylogenetic analysis, HaPYL genes were divided into three subfamilies. Members in the same subfamily share similar protein motifs and gene exon-intron structures, except for the second subfamily. Tissue expression patterns suggested that HaPYLs serve different functions when responding to developmental and environmental signals in the sunflower. Exogenous ABA treatment showed that most HaPYLs respond to an increase in the ABA level. Among these HaPYLs, HaPYL2a, HaPYL4d, HaPYL4g, HaPYL8a, HaPYL8b, HaPYL8c, HaPYL9b, and HaPYL9c were up-regulated with PEG6000 treatment and NaCl treatment. This indicates that they may play a role in resisting drought and salt stress in the sunflower by mediating ABA signaling. Our findings provide some clues to further explore the functions of PYL genes in the sunflower, especially with regards to drought and salt stress resistance.

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Section: Introductionmentioning

confidence: 99%

Characterization of PYL gene family and identification of HaPYL genes response to drought and salt stress in sunflower

Wang,

Zhou,

Zou

et al. 2024

PeerJ

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CONTROL OFOROBANCHE CUMANAWALLR: RESEARCH ON SUSTAINABILITY OF SUNFLOWER HYBRIDS AND STRATEGIES FOR PARASITE PROTECTION

Khablak,

Bondareva,

Dolia

et al. 2024

Preprint

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The work is devoted to solving an important scientific task of determining the spread and harmfulness of broomrape, its racial composition, and developing measures to protect sunflower from this parasite. The aim of the research was to determine the resistance of sunflower hybrids to the broomrape parasite. During the research, a vegetation experiment was used to determine the racial composition of the parasite and the resistance of different sunflower hybrids to it. Sunflower hybrids were evaluated for resistance to broomrape in soil culture using a modified method and the roll method of seed germination. From the northern Steppe of Ukraine, broomrape is actively moving to the central, northern and western regions of the country. The practical value of the work is to determine the resistance of sunflower hybrids to broomrape. Differentiation of sunflower hybrids grown by resistance to the parasite was carried out. It has been observed that the broomrape population exhibits a significant level of virulence capable of overcoming the immunity found in the most resilient foreign-bred hybrids resistant to E, F, and G races of this parasite. The appearance of highly aggressive new races of broomrape (E, F, G, and H) in the Forest-Steppe and Polissya regions underscores the crucial necessity to address the challenge of developing breeding material resistant to these novel races of the parasitic plant. This entails an in-depth exploration of the cellular and molecular mechanisms underlying sunflower resistance to the pathogen. The widespread buildup of parasite races E, F, G, and H in sunflower crops is linked to the disruption of crop rotations and the extensive cultivation of hybrids of this crop. These hybrids are primarily resistant to races 5 (E) and 6 (F) of the parasite. The results of the research can be used in the region's farms for successful protection against broomrape, as well as in breeding programs to create sunflower hybrids resistant to new races of the parasite and corn hybrids that cause better germination of seeds of this pathogen in the soil and their death by their root secretions. Keywords: race, root system, root secretions, identification, parasite.

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Analyzing Sunflower Trait Patterns Using MANOVA, PCA, and Correlation Across Seasons and Locations

Aboye,

Tesema

2024

AJBES

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Sunflower is an important agricultural crop valued for its high oil yield, versatility in culinary and industrial applications and adaptability to diverse environments. Eight advanced sunflower genotypes were tested in a randomized complete block design (RCBD) with three replications at six locations over the 2018 and 2019 seasons. The study aimed to evaluate the effects of environmental and genotypic variations using MANOVA, PCA, and correlation analysis to discover trait patterns and relationships. The MANOVA results revealed highly significant effects of genotype, environment, and their interaction on the 11 dependent variables (p < 0.001). The four principal components account for 74.23% of the total variation, with key traits such as seed yield per hectare, oil yield per hectare, days to maturity, plant height, and grain filling period significantly contributing to the overall variability. Oil yield per hectare and seed yield per hectare exhibited a very strong association (0.974). Days to maturity (DM) and grain filling period (GFP) showed a strong correlation (0.666), suggesting that longer grain filling periods may enhance both maturity and yield. Additionally, plant height (PH) and seed yield per hectare (YELDK) had a moderate correlation (0.491). Breeding programs should target traits with strong correlations to boost sunflower productivity and adaptability. Future research should prioritize selecting genotypes that perform well across diverse environments, focusing on seed yield, oil yield, and traits such as maturity and grain filling period. Additionally, breeding should incorporate disease resistance and optimize days to flowering to develop more robust and productive sunflower varieties.

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Sunflower Breeding

Cited by 7 publications

References 129 publications

Characterization of PYL gene family and identification of HaPYL genes response to drought and salt stress in sunflower

Characterization of PYL gene family and identification of HaPYL genes response to drought and salt stress in sunflower

CONTROL OFOROBANCHE CUMANAWALLR: RESEARCH ON SUSTAINABILITY OF SUNFLOWER HYBRIDS AND STRATEGIES FOR PARASITE PROTECTION

Analyzing Sunflower Trait Patterns Using MANOVA, PCA, and Correlation Across Seasons and Locations

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