Effects of GA3 application on the inflorescence and yield of ‘Yu Her Pau’ litchi

Chen, Po–An; Lee, Chin-Lung; Roan, Su-Fen; Chen, Iou-Zen

doi:10.1016/j.scienta.2014.03.035

Cited by 13 publications

(8 citation statements)

References 21 publications

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“…Kumar (2013) preliminarily indicated that neither female flower percentage nor fruit set rate was influenced by the appearance of leafy inflorescence in 'Shahi' litchi; however, in comparison with the leafless inflorescence, the 40% to 60% decrease in the total number of flowers and female flowers resulted in an 50% decrease in yield of the leafy inflorescence. In contrast, Chen et al (2014) reported that the percentage of leafy inflorescence and number of fruit set of 'Yu Her Pau' litchi increased when 100 mg • L -1 GA 3 was sprayed onto the foliage during quiescence period; however, the percentage of female flowers, cluster yield, fruit set rate, and the residual effects of GA 3 on the leafy inflorescences and fruit were not documented in this study. Whether leafy inflorescences impose a major burden or reduction of the subsequent fruit set and fruit development normally in litchi was inconsistent from their results.…”

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confidence: 76%

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Leafless Inflorescence Produces More Female Flowers and Fruit Yield Than Leafy Inflorescence in ‘Yu Her Pau’ Litchi

Lee¹,

Chang²

2019

horts

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The purpose of this study was to determine whether the total number and percentage of female flowers and fruit yield were influenced by the type of inflorescence, i.e., leafless or leafy inflorescences in ‘Yu Her Pau’ litchi (Litchi chinensis Sonn.). Four 10-year-old field-grown plants in Chunghua, Taiwan, were assessed between March and June 2013. In total, 24 inflorescences comprising 12 each of leafless and leafy inflorescences were investigated. Leaves of the leafy inflorescence, defined as the fourth successive flush, attained maturity before female flower anthesis on 16 Mar. 2013. Shoot diameter and leaf number on the flowering (fruiting) shoot, total number of flowers, and total and percentage of female flowers were recorded. Fruit number, fruit set rate, cluster yield, and fruit quality were also determined at harvest between the two inflorescence types. The two inflorescence types had similar shoot diameters and total leaf number on a flowering shoot. The total number of flowers, female flowers, and the percentage female flowers in leafless inflorescences were 3741, 563, and 16.2%, respectively; these values were 1.3- to 1.7-fold higher (P ≤ 0.05) than those in leafy inflorescences, which were 2779, 326, and 12.2%, respectively. Leafless inflorescences had significantly higher fruit numbers and fruit yield per cluster at harvest (10.2 and 321.5 g, respectively), although there was no difference (P > 0.05) in fruit set rate between the two inflorescence types. No fruit quality trait, such as fruit, pericarp, aril, seed weight, aril proportion, and total soluble solid concentration of aril, was significant (P > 0.05) between the two inflorescence types. We concluded that leafless and leafy inflorescences of ‘Yu Her Pau’ had similar carbon assimilation supply potential; however, leafless inflorescence had greater performance in terms of female flower number and thus fruit yield, presumably due to the absence of assimilate competition brought by synchronous development of lateral inflorescence and immature leaves of panicle.

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confidence: 76%

“…Leafy inflorescences exhibited greater numbers of fruit set of 'Yu Her Pau' litchi, as demonstrated by Chen et al (2014). However, their results, in terms of an inflorescence emerged from a shoot apex by spraying with 100 mg • L -1 GA 3 , were out of considering the residual effects by GA 3 .…”

Section: Discussionmentioning

confidence: 98%

Leafless Inflorescence Produces More Female Flowers and Fruit Yield Than Leafy Inflorescence in ‘Yu Her Pau’ Litchi

Lee¹,

Chang²

2019

horts

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“…Chen et al, (2014) studied the effect of GA 3 @ 100 ppm applied foliarly to litchi cv "Yu Her Pau" and found that it significantly increased the average number of fruits per branch and ultimately the yield. While same concentration in combination with kinetin (25 ppm) sprayed to the trees of litchi cv Bombai at aril development stage delayed the fruit ripening by about 4 days along with improvement in fruit (Dhua et al, 2005).…”

Section: Gibberellic Acidmentioning

confidence: 99%

Growth Regulators for Yield and Quality Enhancement in Litchi (Litchi chinensis L) - A Review

Arora¹,

Singh²

2017

Int.J.Curr.Microbiol.App.Sci

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“…GAs promote flowering in arabidopsis (Blazquez et al 1998). In contrast, GAs inhibit flowering in litchi (Chen et al, 2014), which is evidenced by the fact that exogenous application of paclobutrazol, a GA biosynthesis inhibitor, promotes flowering (Ray and Ruby, 2004) and is a practical method for litchi production. Similar results were reported in citrus (Citrus sp.…”

Section: Discussionmentioning

confidence: 99%

“…The plant hormone signals are perceived and transmitted to the nuclear by series signal transduction components to regulate the expression of flowering related genes, such as constants (CO), flowering locus c (FLC), SVP, FT, and SOC1 (Conti, 2017;Li et al, 2010;Martínez et al, 2004). In litchi, abscisic acid was shown to promote flowering, whereas GAs inhibit flowering (Chen et al, 2014;Cui et al, 2013). Brassinosteroids are a group of polyhydroxylated plant steroid hormones that are ubiquitously present throughout the plant kingdom and play pivotal roles in plant growth and development with regulatory functions during cell elongation, cell division, vascular differentiation, and biotic and abiotic stress responses (Clouse and Sasse, 1998;Nolan et al, 2017).…”

mentioning

confidence: 99%

Litchi Flowering is Regulated by Expression of Short Vegetative Phase Genes

Hu¹,

Kim²,

Chen³

et al. 2018

J. Amer. Soc. Hort. Sci.

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Short vegetative phase (SVP), a MADS-domain transcription factor, was shown to act as a repressor of flowering in arabidopsis (Arabidopsis thaliana). Although the role of SVPs in flowering is well characterized in the model plant arabidopsis, little is known in evergreen woody litchi (Litchi chinensis). In this study, three litchi SVP homologs (LcSVP1, LcSVP2, and LcSVP3) were cloned, and the bioinformatic analysis of the LcSVPs was carried out to identify their molecular characteristics. Their expression patterns in the apical meristem (AM) during the transition from vegetative to reproductive phase were studied under natural flowering inductive conditions. Also, brassinosteroid (BR) treatment under low temperature conditions was performed to elucidate the role of LcSVPs in the BR-regulated flowering. The results showed that LcSVPs belonged to the MADS superfamily. LcSVP relative expression levels in AMs of the early- and late-flowering cultivars showed decreasing trends with the transition from vegetative to reproductive growth. Under low temperature condition, relative expression levels of LcSVP1, LcSVP2, and LcSVP3 in AMs or panicle primordia showed decreasing trends, whereas those in the AMs of the BR-treated trees remained at relatively high levels. Relative expression analysis of the litchi homolog, flowering locus t 1 (LcFT1), showed that the BR-treated leaves had lower relative expression level than nontreated control leaves. The findings suggest that LcSVPs act as repressors involved in flowering in natural conditions and the BR-regulated flowering.

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Effects of GA3 application on the inflorescence and yield of ‘Yu Her Pau’ litchi

Cited by 13 publications

References 21 publications

Leafless Inflorescence Produces More Female Flowers and Fruit Yield Than Leafy Inflorescence in ‘Yu Her Pau’ Litchi

Leafless Inflorescence Produces More Female Flowers and Fruit Yield Than Leafy Inflorescence in ‘Yu Her Pau’ Litchi

Growth Regulators for Yield and Quality Enhancement in Litchi (Litchi chinensis L) - A Review

Litchi Flowering is Regulated by Expression of Short Vegetative Phase Genes

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