High‐temperature‐induced reductions in cropping in everbearing strawberries (<i>Fragaria</i> × <i>ananassa</i>) are associated with reduced pollen performance

Karapatzak, Eleftherios; Wagstaffe, Alexandra; Hadley, P.; Battey, Nicholas H.

doi:10.1111/j.1744-7348.2012.00570.x

Cited by 18 publications

(13 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They also reported that 30°C and 75-85% humidity lowered pollen germination for all cultivars that were evaluated. Karapatzak et al (2012) found lower germination levels for two strawberry cultivars that were exposed to high temperatures (30/20°C day/night), compared to plants exposed to lower temperatures (22°C/15°C, 26°C/11°C). In another study, the lowest in vitro pollen germination levels were determined at 7°C for Elvira, Selva, and Chandler, and 15°C for Cavendish, Allstar, and Elsanta (Koyuncu, 2006).…”

Section: Discussionmentioning

confidence: 81%

Boron Applications and Bee Pollinators Increase Strawberry Yields

Sarıdaş

Karabıyık

Eti

et al. 2021

International Journal of Fruit Science

View full text Add to dashboard Cite

Several factors influence fruit set and yield in strawberry production. Bees play an important role in pollinating strawberry flowers; however, bee populations are decreasing due to air pollution and high usage of pesticides. Boron (B) can increase fruit set by improving pollen viability, germination, and pollen tube growth. This study aimed to assess how the application of honey bees and B fertilizer affects yields and marketable fruit quality of Fortuna strawberry cultivar. The experiment used two strawberry growing tunnels. One was open, thus allowing bee activity, and the other was closed, which meant that bees could not access the strawberry flowers. Each tunnel had different B applications. The presence of bees increased the total fruit yield per plant by 54% compared to the results of plants that were not pollinated by bees. Plants treated with bees yielded bigger fruit than those without bee treatment, which is likely a result of more achenes having been fertilized. Fruit formation, however, did not depend directly on pollinator activity. Both in the presence and absence of bees, applying B to the soil increased yields and decreased misshapen fruit rates. Applying B to the soil was more effective than B foliar applications. As a result of this study, it is demonstrated that strawberry plants perform at a higher rate with the application of B and the presence of bee activity.

show abstract

Section: Discussionmentioning

confidence: 81%

Boron Applications and Bee Pollinators Increase Strawberry Yields

Sarıdaş

Karabıyık

Eti

et al. 2021

International Journal of Fruit Science

View full text Add to dashboard Cite

show abstract

“…Temperature directly influences the length of the growing season, and therefore fluctuations in the climate would result in irregular flowering patterns [35]. When tunnel temperatures increase unexpectedly, high temperatures may affect flower and fruit quality as well as quantity [13,[36][37][38][39]. Although the effect of high temperature on the development of reproductive and vegetative structures in EB cultivars have been previously reported [13,38,40,41], in most of these studies the plants were moved after treatment in control climate rooms optimal for growth.…”

Section: Introductionmentioning

confidence: 99%

Effects of Temperature and Photoperiod on the Flower Potential in Everbearing Strawberry as Evaluated by Meristem Dissection

et al. 2021

View full text Add to dashboard Cite

The growing interest in using everbearing (EB) strawberry cultivars to extend the cultivation period has faced some challenges. These include poor runner production due to its perpetual flowering nature; irregular flowering behavior and extended periods of high temperature have caused floral inhibition and reduced yield. As flowering is an interplay between temperature and photoperiod, it is important to investigate the effects of this interaction on the cultivation. Therefore, this study used meristem dissection as a tool to study the effect of temperature and photoperiod on meristem development. Tray plants of two EB strawberry cultivars ‘Florentina’ and ‘Favori’ were grown at 20 °C, 25 °C, and 30 °C under short day (SD) conditions, and subsequently at 20 °C under long day (LD) conditions. The meristem development was analysed every 6 weeks for a 15-week period in SD and for 14 weeks in LD conditions using meristem dissection. The plants showed similar flowering patterns to previously studied everbearing cultivars, which was qualitative LD plants at high temperatures and quantitative LD plants at lower temperatures. Our results show that meristem dissection can be used to determine the temperature and photoperiodic effect on meristem development, and for the occurrence of cropping peaks, and can therefore be used to decide the environmental input and to evaluate yield potential.

show abstract

“…They referred to this phenomena as thermodormancy. Karapatzak et al [13] did not find such a strong inhibition of flowering at high temperatures in another study of 'Everest' and 'Diamante', but they did find pollen germination to be greatly inhibited at high temperatures (30/20 • C). Bradford et al [5] found the threshold temperature for floral inhibition to be 23 • C in SD 'Honeoye' and 26 • C in DN 'Tribute' and a wild SD selection of F. virginiana.…”

Section: Introductionmentioning

confidence: 92%

Heat tolerance plays an important role in regulating remontant flowering in an F1 population of octoploid strawberry (Fragaria×ananassa)

Mookerjee

Mathey

Finn

et al. 2013

Journal of Berry Research

View full text Add to dashboard Cite

BACKGROUND: Flower initiation in strawberry is often classified by photoperiod sensitivity; however, temperature also plays a major role in determining flower initiation. OBJECTIVE: Our goal was to determine the role heat tolerance plays in regulating remontant flowering in a segregating population of strawberry, Fragaria×ananassa. METHODS: Non-remontant (short day)'Honeoye' and remontant 'Tribute' were crossed and 54 progeny were grown in three temperature regimes (17, 20, and 23 • C) under a long photoperiod in the greenhouse and differences in flower and runner formation among the progeny were compared. In addition, clonally replicated individuals of the same family were grown in the field in Michigan and Oregon, so that the extent of heat tolerance observed for each genotype in the greenhouse studies could be compared to their phenotype in the field (remontant vs. non-remontant). RESULTS: A significant Genotype x Environment interaction was observed in the greenhouse studies, indicating that there was a strong genetic component regulating the response of the individuals to increasing temperature. The level of heat tolerance, as defined as the difference in flower numbers at 23 • C vs. 17 • C,showed a continuous distribution among the progeny, indicating polygenic control. The majority of the genotypes that were remontant in the field produced more flowers at 23 • C than at 17 • C in the greenhouse trials. Flower initiation in both the parents was reduced at 23 • C, but 'Tribute' produced significantly more flowers than 'Honeoye' at 23 • C (48.0 vs. 11.3). Most remontant progeny had few runners, although there were some notable exceptions. CONCLUSIONS: Temperature tolerance plays an important role in the flower and runner initiation of remontant genotypes. Genotypes with high heat tolerance can be selected that will more dependably flower in environments with highly variable levels of summer heat.

show abstract

High‐temperature‐induced reductions in cropping in everbearing strawberries (Fragaria × ananassa) are associated with reduced pollen performance

Cited by 18 publications

References 21 publications

Boron Applications and Bee Pollinators Increase Strawberry Yields

Boron Applications and Bee Pollinators Increase Strawberry Yields

Effects of Temperature and Photoperiod on the Flower Potential in Everbearing Strawberry as Evaluated by Meristem Dissection

Heat tolerance plays an important role in regulating remontant flowering in an F1 population of octoploid strawberry (Fragaria×ananassa)

Contact Info

Product

Resources

About