Flowering and pollen resilience to high temperature of apricot cultivars

Iovane, Maurizio; Izzo, Luigi Gennaro; Cirillo, Aurora; Romano, Leone Ermes; Vaio, Claudio Di; Aronne, Giovanna

doi:10.1016/j.scienta.2022.111261

Cited by 6 publications

(5 citation statements)

References 34 publications

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“…19 Studies report a drastic loss of viability of olive pollen when it is subjected to a combination of high humidity and high temperature. 40 Air temperature is an abiotic factor that has a strong influence on the growth and development of crops. 41 Physiological processes such as photosynthesis, floral differentiation, fruit development and formation, and the proper functioning of enzymes and biochemical cycles are directly related to the air temperature factor.…”

Section: Resultsmentioning

confidence: 99%

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Agroclimatic mapping for olive cultivation in Brazil: pinpointing optimal growing regions

de Oliveira Aparecido,

Torsoni,

de Lima

et al. 2024

J Sci Food Agric

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BACKGROUNDThis research aimed to identify the agroclimatic zones in Brazil, excluding Rio Grande do Sul, that are suitable for olive (Olea europaea L.) cultivation, considering both climatic and topographical factors. Olives require specific conditions: moderate winter temperatures (7–15 °C), warmer summers (25–35 °C) and sufficient water during growth and fruit maturation. They can endure some drought, making them a viable option for agricultural diversification. Using daily meteorological data from 1989 to 2023 from NASA‐POWER, this study analyzed variables like air temperature (minimum and maximum) and rainfall. Key climate variables were the mean air temperature in winter (T_w), spring (T_s), summer (T_su) and autumn (T_a) and total annual precipitation (Prec). Criteria for suitability included: T_w between 5 and 20 °C, T_s between 15 and 23 °C, T_su between 15 and 30 °C, T_a between 15 and 22 °C, annual precipitation over 900 mm and altitude below 900 m. Geographic information system software and Python 3.8 were employed for data analysis and zoning.RESULTSResults indicated that only 1.92% of the analyzed area, mainly in Minas Gerais, was suitable for olive cultivation. High temperatures and low rainfall in Brazil, particularly in the North and Midwest, make 59.56% of the country unsuitable for olive farming. Additionally, 18.58% of the land, mainly in the Northeast, faces challenges due to extreme heat (T_w) and insufficient water supply. © 2023 Society of Chemical Industry.

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Section: Resultsmentioning

confidence: 99%

“…Most of the states in the South and Southeast regions presented low T_w and T_a, which certainly influenced olive flowering and production 19 . Studies report a drastic loss of viability of olive pollen when it is subjected to a combination of high humidity and high temperature 40 …”

Section: Resultsmentioning

confidence: 99%

Agroclimatic mapping for olive cultivation in Brazil: pinpointing optimal growing regions

de Oliveira Aparecido,

Torsoni,

de Lima

et al. 2024

J Sci Food Agric

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“…More specifically, undehisced anthers were detached from 200 flower buds per species, distributed in two different Petri dishes, and left to dehisce in a closed container filled with dry silica gel. This method sped up pollen release from anthers and allowed for the production of one bulk sample of pollen per species within a few hours of flower sampling (Iovane et al, 2022b).…”

Section: Pollen Sampling and Viability Measurementmentioning

confidence: 99%

Simulated microgravity affects directional growth of pollen tubes in candidate space crops

et al. 2023

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BackgroundLong-term space missions will necessarily require producing viable seeds to be used for plant cultivation over time under altered gravity conditions. Pollen is known to play a key role in determining seed and fruit production over seed-to-seed cycles, but very few studies have evaluated pollen functionality under altered gravity.MethodsWe performed ground-based experiments to test how simulated microgravity can affect the directional growth of pollen tubes as a potential bottleneck in seed and fruit sets. The effect of clinorotation was assessed in the pollen of Solanum lycopersicum L. cv. ‘Micro-Tom’ and Brassica rapa L. var. silvestris, both eligible for cultivation in space. Pollen tube length and tortuosity were compared under 1g and simulated microgravity with a uniaxial clinostat.ResultsThe main results highlighted that simulated microgravity significantly increased pollen tube length and tortuosity compared to 1g conditions. Further, clinorotation prompted a differential effect on pollen germination between S. lycopersicum and B. rapa. A more in-depth analysis evaluating the effect of gravity on the directional growth of pollen tubes excluded gravitropic responses as responsible for the tube tip position reached after germination.DiscussionThis research provides new insights into how altered gravity can interfere with plant reproduction and, in particular, microgametophyte functionality. Our findings represent a basis for further studies aimed at understanding the effect of real microgravity on plant reproduction and developing countermeasures to ensure seed-to-seed cultivation in long-term space missions and achieve self-sufficiency in food supplies from Earth.

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“…Several local cultivars are thought to be resistant to cold (e.g., “Rotondella”) or drought (e.g., “Carpellese” and “Pisciottana”) conditions, and a few cultivars are putatively considered to be resistant to black mold, peacock spot, and knot diseases (e.g., “Pisciottana”) [ 9 ]. The cultivars respond differently to high-temperature and drought conditions showing differences in adaptation, vitality and germinability of pollen, dry matter distribution, production, and gas exchange responses to water shortage [ 16 , 17 , 18 , 19 ]. In this context, climate change may become particularly challenging for olive growers, for this reason it is necessary to adapt different measures to mitigate their effect on crops.…”

Section: Introductionmentioning

confidence: 99%

Minor Variety of Campania Olive Germplasm (“Racioppella”): Effects of Kaolin on Production and Bioactive Components of Drupes and Oil

Cirillo

Graziani

Luca

et al. 2023

Plants

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The effects of climate change have a great impact on the Mediterranean regions which are experiencing an increase in drought periods with extreme temperatures. Among the various solutions reported to reduce the damage caused by extreme environmental conditions on olive plants, the application of anti-transpirant products is widespread. In an increasingly current scenario of climate change, this study was designed to evaluate the effect of kaolin on the quantitative and qualitative parameters of drupes and oil in a little-known olive cultivar known as “Racioppella”, belonging to the autochthonous germplasm of Campania (Southern Italy). To this purpose, the determination of maturation index, olive yield/plant, and bioactive components analysis (anthocyanins, carotenoids, total polyphenols, antioxidant activity, and fatty acids) were carried out. Kaolin applications showed no statistically significant differences in terms of production/plant while a significant increase in the drupe oil content was observed. Kaolin treatments resulted in increased anthocyanins (+24%) and total polyphenols (+60%) content and at the same time a significant increase in the antioxidant activity (+41%) of drupes was recorded. As far as oil is concerned, the results showed an increase in monounsaturated fatty acids, oleic and linoleic acids, and total polyphenols (+11%). On the basis of the results obtained, we can conclude that kaolin treatment can be considered as a sustainable solution to improve qualitative parameters in olive drupes and oil.

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Flowering and pollen resilience to high temperature of apricot cultivars

Cited by 6 publications

References 34 publications

Agroclimatic mapping for olive cultivation in Brazil: pinpointing optimal growing regions

Agroclimatic mapping for olive cultivation in Brazil: pinpointing optimal growing regions

Simulated microgravity affects directional growth of pollen tubes in candidate space crops

Minor Variety of Campania Olive Germplasm (“Racioppella”): Effects of Kaolin on Production and Bioactive Components of Drupes and Oil

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