The Starch Status During Growth and Development of Strawberry Plant Under Tropical Climatic Condition

Al-Madhagi, Isam; Hasan, Salehi Mohammad; Ahmad, Afzal; Yusoff, Wan Abdullah Bin

doi:10.17660/actahortic.2014.1024.11

Cited by 4 publications

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“…5). Al-Madhagi (2013) and Al-Madhagi et al (2014) remarked the decrease in starch level and increase in sucrose levels during the flowering stage. Ito et al (2002) showed that sucrose metabolism is involved in developing the plant flower bud in Japanese pear.…”

Section: Discussionmentioning

confidence: 95%

“…However, subsequent warm temperature to chilling could induce the flower earlier. In addition, temperature and photoperiod have influence on the level of carbohydrates and on the type and level of endogenous hormone (Young 1989;Taiz & Zeiger 1998;Cutting et al 1991;Cook & Bellstedt 2001;Ito et al 2001;Corbesier et al 2003;Ahmed & Ragab 2003;Ulger et al 2004;Eshghi & Tafazoli 2007;Al-Madhagi et al 2012;Al-Madhagi 2013).…”

Section: Discussionmentioning

confidence: 99%

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Effect of Chilling and Accumulative Photo-Thermal Units on Flowering of Strawberry (Fragaria × ananassa Duch.)

Al-Madhagi

Al-Munibary

Al-Doubibi

2018

Journal of Horticultural Research

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The influence of chilling period hours and accumulative photo-thermal unit at different base temperatures, 10, 11, 13, 15, and 18 °C, on the flowering of strawberry was examined in Sana’a University-Yemen during two seasons: 2006 and 2007. The randomized complete block design (RCBD) field experiment was designed with 5 chilling hours (CHs) periods (0, 360, 750, 1080, and 1440 CHs under 2 ± 1 °C), with four replicates each. Accumulative photo-thermal unit (PTU) was calculated for every treatment at different base temperatures for two stages: (i) from planting date to the flower opening (THA) and (ii) from planting date until the end of 2 months (THB). The results revealed that the plants treated with 1080 h of chilling produced flowers with about 55.12% and 61.97% earlier when compared with control (without chilling) in both the seasons, respectively. Stepwise multiple regression analysis showed that both CHs and the accumulative PTU THA13 (in the first season) and CH plus THA10 (in the second season) have significant effect on days until flower opening, in which the majority effect was related to the chilling period. The effect of chilling period and accumulative PTU at 18 °C (THB18) had s significant influence (p < 0.05) on the number of early flower per plant, with about r2 = 0.250 and r2 = 0.536 in both the seasons, respectively, and r2 = 0.531 and r2 =0.740 for the total effect of both CH and THB18, respectively. However, the exposure of plants to the long period of chilling (1080 and 1440 h) led the plants to produce runners and break up the flowering stage after 9 and 11 weeks in both the seasons, respectively. Meanwhile, plants that received 360-h chilling produced significantly highest (p < 0.05) total number of flowers (24.83 per plant), with about 71.2% higher than that produced by control plants. Moreover, in the second season, plants treated with 750-h chilling produced the significantly higher total number of flowers per plant, with about 50.3% higher than that of the control. Meanwhile, the 360-h and 750-h chilling periods have similar effect on the number of flowers per plant in the second season. The result showed that the starch level in the crown significantly positively correlated with the days to flower opening (r2 = 0.415, p = 0.05) and negatively correlated with the number of early flower (r2 = 0.587, p = 0.01). The data from this study might be used for the management of strawberry production.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

Effect of Chilling and Accumulative Photo-Thermal Units on Flowering of Strawberry (Fragaria × ananassa Duch.)

Al-Madhagi

Al-Munibary

Al-Doubibi

2018

Journal of Horticultural Research

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“…On average, the accumulation of starch in the roots of the 'Sonata' tray plants was more significant than in the cultivar 'Albion'. The differences in starch accumulation patterns in various cultivars were showed also by Al-Madhagi et al [2014]. The correlations between the accumulated amount of chilling and the root starch content were evaluated using regression models (data from both seasons was used).…”

Section: Resultsmentioning

confidence: 99%

“…The chilling requirement is one of the most critical factors determining strawberry plants' successful growth and yielding. In temperate regions, strawberry plants accumulate a sufficient number of chilling hours and store carbohydrates in the roots and crowns, whereas the shoots remain dormant as a response to the short photoperiods and low temperatures during the autumn and winter [Durner et al 1984, Maas 1986, Al-Madhagi et al 2014. The chilling requirement is the primary determinant of the initiation of strawberry flowers.…”

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confidence: 99%

The influence of chilling hours on root starch content, growth and yield of strawberry tray plants

Wójcik,

Klamkowski,

Treder

et al. 2023

Acta Sci. Pol. Hortorum Cultus

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The chilling requirements of two strawberry cultivars (‘Sonata’, ‘Albion’) were assessed by evaluating the starch accumulation levels in the tray plants’ root system and their subsequent growth and yielding. The research was conducted in an experimental orchard and a greenhouse of the National Institute of Horticultural Research in Skierniewice, Poland, in 2017–2019 (2 cycles of obtaining planting material and growing plants). The tray plants (rooted tips) were grown in the natural field conditions until they were transferred in batches to a cold store (–2°C) on five different dates: 12 Oct., 30 Oct., 20 Nov., 11 Dec., and 3 Jan. (of the following year). The number of accumulated chilling hours less than 7°C was recorded for each transfer date, and the roots were analysed for starch content at the time of transfer. After the end of cold storage (3 months, standardised for all treatments), the plants were planted in pots and transferred to a greenhouse to assess growth and plant yielding. The obtained results indicate that chilling induces changes in the extent of starch accumulation. The highest starch accumulation in ‘Sonata’ roots was recorded when the plants received about 500 h of chilling (under Polish conditions accumulated in November/December). In the ‘Albion’ strawberry case, the maximum was found at the lower chilling level – about 300 h (middle of November). The highest fruit yields were produced by ‘Sonata’ plants, for which the number of chilling hours (0–7°C) was 500–800 h. In the case of ‘Albion’, the values were 2–3 times lower. A more extended period of keeping tray plants in field conditions (over 1000 h of chilling) resulted in a deterioration in fruit yield.

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Metabolomic characterization of pitaya fruit from three red-skinned cultivars with different pulp colors

Hua

Chen

Tel-Zur

et al. 2018

Plant Physiology and Biochemistry

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The Starch Status During Growth and Development of Strawberry Plant Under Tropical Climatic Condition

Cited by 4 publications

References 0 publications

Effect of Chilling and Accumulative Photo-Thermal Units on Flowering of Strawberry (Fragaria × ananassa Duch.)

Effect of Chilling and Accumulative Photo-Thermal Units on Flowering of Strawberry (Fragaria × ananassa Duch.)

The influence of chilling hours on root starch content, growth and yield of strawberry tray plants

Metabolomic characterization of pitaya fruit from three red-skinned cultivars with different pulp colors

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