Effects of various inductive periods and chemicals on flowering and vegetative growth of ‘Tommy Atkins’ and ‘Keitt’ mango (<i>Mangifera indica</i>) cultivars

Yeshitela, T.; Robbertse, P.J.; Stassen, P. J. C.

doi:10.1080/01140671.2004.9514298

Cited by 25 publications

(22 citation statements)

References 13 publications

(15 reference statements)

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“…PBZ applied as a soil drench reduces internode lengths and causes earlier and enhanced flowering in mango trees. These results have been confirmed in different locations in the tropics [11]. Paclobutrazol doses applied, each year, are not always adequate because they do not take into account the residue from previous applications.…”

Section: Introductionmentioning

confidence: 78%

Biodegradation of Paclobutrazol — A Plant Growth Regulator Used in Irrigated Mango Orchard Soil

Vaz¹,

Santos-Filho²,

Silva³

et al. 2015

Biodegradation and Bioremediation of Polluted Systems - New Advances and Technologies

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Paclobutrazol PBZ , [ RS, RS]--[ -chlorophenyl]-, -dimethyl--H-, , -triazol--yl pentan--ol, consists of a triazole ring and a benzene ring-chloro linked to a carbon chain open. It is a plant growth regulator widely used in many crops in order to produce fruit throughout the year by inhibiting gibberellin synthesis, a hormone responsible for the vegetative plant growth. Actually, studies are showing that paclobutrazol remains active in the soil for a long time, affecting the growth and development of subsequent crops by reducing plant vigor. Biodegradation is an effective and cheap process that can to degrade or transform contaminants to less toxic or nontoxic. In this work, the biodegradation of paclobutrazol was studied using in submersed culture and saturated and unsaturated soils. In these conditions, experiments with biostimulation and bioaugmentation were performed. In the experiments carried out in submersed culture, with biostimulation by addition of glycerol, the PBZ biodegradation was higher than that with PBZ as sole carbon source. The biodegradation of PBZ in unsaturated soils was more efficient when soil samples with a history of application of PBZ were used. The highest number of applications of PBZ favored biodegradation. The biodiversity of the microbiota in the soil favored the biodegra-

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Section: Introductionmentioning

confidence: 78%

Biodegradation of Paclobutrazol — A Plant Growth Regulator Used in Irrigated Mango Orchard Soil

Vaz¹,

Santos-Filho²,

Silva³

et al. 2015

Biodegradation and Bioremediation of Polluted Systems - New Advances and Technologies

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“…This effect could be in part attributed to additional N from KNO 3 . Increased nitrogen fertilization through the soil has been found to increase fruit retention and yield in mango (Smith, 1994;Yeshitela et al, 2004). According to Kulkarni (2014), the floral stimulus is present in stems when buds are forced in response to KNO 3 and that KNO 3 may sensitize buds to the floral stimulus.…”

Section: Discussionmentioning

confidence: 99%

Off-Season Flower Induction in Mango Fruits Using Ethephon and Potassium Nitrate

Maloba¹,

Ambuko²,

Hutchinson³

et al. 2017

JAS

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Seasonality in mango production is a major factor contributing to high postharvest losses reported in the value chain. Oversupply during the high season is one of the factors that contribute to the high postharvest losses (≥ 50%) in the supply chain in Kenya. Effective strategies to address seasonality can contribute significantly to postharvest loss reduction. Efficacy of two flower induction chemicals, potassium nitrate (KNO 3 ) and ethephon on reproductive growth parameters and yield components were evaluated on two mango varieties: 'Apple' and 'Ngowe'. KNO 3 was applied at two concentrations (2 and 4%), and ethephon (600 and 1000 ppm) then compared to control (water). They were applied to trees which failed to flower/set fruit in 2014 season. There effect was established from reproductive growth parameters: days to flowering, number of panicles per tree, fruit set per 20 panicles, fruit fall and hormonal effect. KNO 3 (4%) and ethephon increased percentage flowering in both 'Ngowe' and 'Apple' and AEZs (Agro-Ecological Zones), significantly (p < 0.05) shortened time to flowering and increased fruit set. The findings show that KNO 3 and ethephon can be used to induce flowering/fruiting in mango fruits. These technologies can therefore be applied to induce off-season mango production to address seasonality and reduce postharvest losses during the peak season.

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“…Peach trees cultivated in these regions may present difficulties for promoting and suspension growth, what will account for problems regarding the normal flow of the so-called circadian cycle of plants throughout the year. Under vegetative growing conditions in tropical regions, tree growth may occur in the form of "vegetative growth flushes", which may vary in number of occurrence, intensity and duration, according to the time of year, or to environmental/hormonal stimulus received by plants like what occurs in other plant species such as mangoes and avocado trees (Yeshitela et al, 2004;Salazar-García et al, 2006). The occurrence of these "flushes" may alter the establishment of the total leaf area and also of the individual leaf area of the leaves.…”

Section: Resultsmentioning

confidence: 99%

Response of peach tree leaf area to seasonal variation in tropical climate

et al. 2020

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Here, we describe differences in the establishment of the leaf limb area and morphology of peach tree attributed to different seasonal conditions at a high-altitude tropical climate. The cultivars ‘Tropic Beauty’, ‘BRS Kampai’ and ‘BRS Rubimel’ were cultivated in a production area located in Ervália – MG, Brazil. A series of experiments is being carried out in this area since 2016, and the data collection for the present report was carried out in the 2018 productive cycle, when the plants were 4 years old. Fully expanded leaves were collected from ‘brindilla’ type (with same flushes vegetative growth) branches according to the period of the year. Leaves were collected for two seasons in year, August (first flushes) and December (second flushes) 2018. Three hundred leaves from each cultivar at each season were collected randomly as representative of the canopy in its middle portion. They were separated into ten replicates and evaluated individually for length, width and leaf area. All cultivars exhibited cyclic and significant differences in length, width and leaf area attributed to the environmental conditions, where and when they were developed. Further investigation is needed regarding this differential leaf growth and its impact on the production of peach trees grown in tropical highland regions.

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Effects of various inductive periods and chemicals on flowering and vegetative growth of ‘Tommy Atkins’ and ‘Keitt’ mango (Mangifera indica) cultivars

Cited by 25 publications

References 13 publications

Biodegradation of Paclobutrazol — A Plant Growth Regulator Used in Irrigated Mango Orchard Soil

Biodegradation of Paclobutrazol — A Plant Growth Regulator Used in Irrigated Mango Orchard Soil

Off-Season Flower Induction in Mango Fruits Using Ethephon and Potassium Nitrate

Response of peach tree leaf area to seasonal variation in tropical climate

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