Effects of temperatures on pollen germination and pollen tube growth in apple

Zebro, Mewuleddeg; Kang, Joonsung; Heo, Jae Yun

doi:10.1590/1678-4499.20220242

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…In Korea, it has been reported that problems related to coloration and quality deterioration inhibit the production of high-quality apples in major producing areas due to the frequent occurrence of high temperatures during the growing season, unlike in the past [16]. Accordingly, it is believed that the optimal cultivation area for apples will shift to higher latitudes in Korea [17,18]. However, there has been no comprehensive assessment of the long-term effects of climate change on the phenology and key characteristics of apples in high-latitude regions in Korea.…”

Section: Introductionmentioning

confidence: 99%

Temperature Changes Affected Spring Phenology and Fruit Quality of Apples Grown in High-Latitude Region of South Korea

et al. 2023

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Climate change has had a significant impact on apple phenology and fruit quality worldwide. Similarly, a decline in fruit quality has been observed in major apple-producing areas of Korea. It is predicted that the ideal cultivation areas for apples would need to shift toward higher latitudes due to these changes. Hence, the objective of this study was to assess the influence of climate change on apple cultivated in a higher-latitude region. To achieve this goal, we investigated the flowering and harvest times of apples. Additionally, we measured fruit weight, soluble solid content, and titratable acidity over a period of 20 years in a higher-latitude region in Korea. Subsequently, we examined the relationship between temperature, phenology, and fruit quality through the use of linear regression and correlation analysis methods. The 20-year meteorological data revealed a consistent rise in temperatures. Consistent with this trend, we found a significant advancement in budbreak and flowering dates for the two major apple cultivars grown in a higher latitude in Korea. Furthermore, the increase in temperatures has positively influenced fruit quality, indicating that climate change has an impact not only on phenology, but also on the quality of apples in Korea. Considering the projected gradual increase in temperature, our findings strongly support that higher-latitude regions in Korea have the potential to become optimal locations for apple cultivation.

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Section: Introductionmentioning

confidence: 99%

Temperature Changes Affected Spring Phenology and Fruit Quality of Apples Grown in High-Latitude Region of South Korea

et al. 2023

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Rootstock Type Differentially Affects Pollen Germination Characteristics and Chilling Stress Response at Flowering Time in ‘Fuji’ Apple

Zebro,

Heo

2023

Applied Fruit Science

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Patterns and Drivers of Pollen Temperature Tolerance

Tushabe,

Rosbakh

2024

Plant Cell & Environment

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Pollen, a pivotal stage in the plant reproductive cycle, is highly sensitive to temperature fluctuations, impacting seed quality and quantity. While the importance of understanding pollen temperature limits (Tmin, Topt, Tmax – collectively PTLs) is recognized, a comprehensive synthesis of underlying drivers is lacking. Here, we examined PTLs, correlating them with vegetative tissue thermotolerance and assessing variability at the intra‐ and interspecific levels across 191 species with contrasting phylogeny, cultivation history, growth form and ecology. At the species level, the PTLs range from 9.0 to 42.4°C, with considerable differences among individual species. Vegetative tissue showed greater tolerance to both low and high temperatures than pollen. A significant, though weak, correlation was observed between PTLs and leaf temperature tolerance. Pollen heat tolerance was independent of that in leaves and stems. The greatest intraspecific variability was observed in pollen cold tolerance (Tmin), followed by Topt and Tmax. Phylogenetic analysis revealed family‐level conservation in all three pollen temperature tolerance measures. Climate emerged as a significant PTL driver of pollen cold tolerance, with species from colder and stable climates exhibiting enhanced cold tolerance. Cultivated and wild species did not differ in their pollen temperature tolerances. Herbaceous plants showed higher tolerance to high temperatures compared to shrubs and trees, potentially reflecting divergent thermal conditions during anthesis. This study provides the first formal analysis of complex relationships between pollen temperature limits, plant characteristics and environmental factors, providing crucial insights into climate change impacts on plant reproduction.

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Effects of temperatures on pollen germination and pollen tube growth in apple

Cited by 3 publications

References 30 publications

Temperature Changes Affected Spring Phenology and Fruit Quality of Apples Grown in High-Latitude Region of South Korea

Temperature Changes Affected Spring Phenology and Fruit Quality of Apples Grown in High-Latitude Region of South Korea

Rootstock Type Differentially Affects Pollen Germination Characteristics and Chilling Stress Response at Flowering Time in ‘Fuji’ Apple

Patterns and Drivers of Pollen Temperature Tolerance

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