Meristem Analysis on Strawberry Plants During Propagation and Production

Savini, G.; Neri, D.; Mercadante, L.; Molari, Giovanni; Magnani, D.; Capriolo, Giuseppe

doi:10.17660/actahortic.2006.708.38

Cited by 5 publications

(11 citation statements)

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“…Although floral induction cannot be deduced by flower mapping, our results show that if flower mapping is performed at an appropriate time, its results are consistent with those obtained by analysing molecular markers related to flowering (Figures 4, 7, and 8). Although the method is labour-intensive and requires special training, it remains essential for breeders that rely on its results to make important decisions concerning flowering, and thus yield [15,45,46]. We also see that even when flowering has been induced, differences in post-induction environmental conditions can still influence initiation and subsequent stages of floral development (Figure 6), in accordance with previous reports [47,48].…”

Section: Discussionsupporting

confidence: 90%

“…Furthermore, in commercial production, strawberry plants are raised under inducing conditions and then transferred to a greenhouse for flowering and fruiting when floral initiation is complete. However, several studies have shown that environmental factors can influence flower bud differentiation and subsequent development even in plants that have been induced and initiated flower buds [4,[10][11][12][13][14][15][16]. This must be taken into account because initiating adequate numbers of inflorescences is of similar economic importance to producing runners for clonal propagation [11].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of environmental effects on flowering and plant architecture in an everbearing strawberry F1-hybrid by meristem dissection and gene expression analysis

Samad

Rivero

Kalyandurg

et al. 2022

Preprint

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Floral transition in the cultivated everbearing strawberry is a hot topic because these genotypes flower perpetually and are difficult to maintain in a non flowering state. However, it has rarely been studied using morphogenetic and molecular analyses simultaneously. We therefore examined morphogenetic effects and the activation of genes involved in floral induction and initiation in seedlings of an everbearing F1 hybrid. Seedlings were grown at 12, 19, and 26 degree Celsius under 10h SD and 20h LD conditions. We observed a strong environmental influence on meristem development and a FLOWERING LOCUS T1 (FaFT1) and SUPPRESSOR OF OVEREXPRESSION OF CONSTANS1 (FaSOC1) pathway similar to that in the everbearing woodland strawberry. The everbearing cultivar showed typical features of a quantitative LD plant, flowering earlier under LD than SD conditions at all temperatures. We also found that floral induction is facilitated by FaFT1 upregulation under LD conditions, while FaSOC1 upregulation in the apex leads to photoperiod-independent floral initiation. Moreover, we confirmed the strawberry meristem identity gene FRUITFULL (FaFUL) can also be used as an early indicator of floral initiation in EB cultivars. This study also highlights the ad-vantages of using seed-propagated F1 hybrids for genetic studies because are genetically identical, and not biased by a previous flowering history.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Characterization of environmental effects on flowering and plant architecture in an everbearing strawberry F1-hybrid by meristem dissection and gene expression analysis

Samad

Rivero

Kalyandurg

et al. 2022

Preprint

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“…The experiments were conducted in a greenhouse at ambient SD and LD, to mimic the natural growing conditions of a tunnel under three temperature treatments in SD, followed by an experiment exploring the optimal temperature in LD. We followed the meristem development over time to monitor the effect of environmental stimulus on plant development and to estimate the quality of the next flush [45]. At week 0 in the SD experiment, there were no open flowers in either cultivar.…”

Section: Discussionmentioning

confidence: 99%

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

et al. 2021

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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.

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“…Plants can be propagated under favorable conditions for floral induction in northern areas and then transplanted in southern areas to stimulate floral organ formation and development. The location of the nursery affects flower induction, which takes place earlier at higher altitudes (Savini et al 2006b), whereas environments with a long photoperiod and relatively high temperature minimize flower induction and promote vegetative growth, resulting in a different number of flowers per plant (Savini et al 2006b).…”

Section: Locationmentioning

confidence: 99%

“…In tropical climates at low altitude (higher temperature), plants show reduced vegetative growth and develop fewer leaves compared with plants at higher altitudes (Riyaphan et al 2005). In the Alps, transplanting from a high to a low altitude allows a longer flower induction and differentiation period with the production of more flowers per plant and earlier fruit harvest (Savini et al 2006b).…”

Section: Locationmentioning

confidence: 99%

Strawberry production in forced and protected culture in Europe as a response to climate change

et al. 2012

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Neri, D., Baruzzi, G., Massetani, F. and Faedi, W. 2012. Strawberry production in forced and protected culture in Europe as a response to climate change. Can. J. Plant Sci. 92: 1021–1036. In Europe, the production of strawberry for fresh market in forced and protected conditions is increasing. These techniques were initially aimed at enhancing the earliness of June-bearing short day varieties. Nowadays, the objective is to have year-round fruit availability, forcing and preserving strawberry crops against adverse weather conditions. The new high-quality low-chilling varieties widely expanded winter–spring strawberry production in the Mediterranean climate with autumn planting, while the diffusion of day-neutral ever-bearing varieties increased spring–summer yields in more continental climates, avoiding the extremely cold winter with spring planting. Finally, the use of tray-plants significantly increased late summer–fall strawberry production with summer programmed planting. The present review analyzes the recent evolution of strawberry cultivars and cultivation systems under plastic tunnels and in greenhouses. The physiological effects on plant architecture and propagation are discussed. In conclusion, we can affirm that strawberry growers are facing climate change with innovations in cultivated varieties and cultural techniques, and by the integration of the different production areas, with their specific optimum yield seasons, to continuously fulfill the demands of the European market.

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Meristem Analysis on Strawberry Plants During Propagation and Production

Cited by 5 publications

References 0 publications

Characterization of environmental effects on flowering and plant architecture in an everbearing strawberry F1-hybrid by meristem dissection and gene expression analysis

Characterization of environmental effects on flowering and plant architecture in an everbearing strawberry F1-hybrid by meristem dissection and gene expression analysis

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

Strawberry production in forced and protected culture in Europe as a response to climate change

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