Applied aspects of pineapple flowering

Cunha, G.A.P

doi:10.1590/s0006-87052005000400001

Cited by 31 publications

(32 citation statements)

References 63 publications

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“…Using the Ta value, regression was applied as a function of latitude, longitude, and altitude for the whole basin. The risk classes defined for Ta were as follows: high risk-below 19 • C; medium risk-between 19 and 21 • C; low risk-greater than 21 • C [26,29,30]. (c) Frost Risk: We used meteorological data from the thirteen-season historical series, taking into account occurrences of temperatures of 1 • C or below as observed within the meteorological shelters, to calculate the risk of frost.…”

Section: Agroclimatic Risk Zoningmentioning

confidence: 99%

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Agroclimatic Risk Zoning of Avocado (Persea americana) in the Hydrographic Basin of Paraná River III, Brazil

et al. 2019

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Fruticulture is a prominent component of Brazilian agriculture. Studies have shown that climatic variability and its impact on the physiological development of plant species are fundamental for planning the agricultural calendar, resource conservation, and sustainable management of production. In this context, one of the first criterion for planting a crop is agroclimatic zoning, since it provides information on climate-related risks and aids decision-making and agricultural planning. The objective of this study was to carry out climatic risk zoning for avocado (Persea americana Mill.) in the basin of Paraná River III, Paraná State, Brazil. Meteorological data from 43 stations, from 1976 to 2018, were used. The climatic risk analysis was based on the requirements of the avocado for precipitation, water balance, average annual temperature, and frost tolerance. Statistical and geoprocessing techniques ensured full regional coverage of data and contributed to decision-making. The results identified favorable climatic conditions for all climatic variables in the western part of the river basin. Despite water deficits in some months, rainfall and water balance were not restrictive for avocado production in the region. Avocado tree cultivation is not recommended in the eastern part of the basin, where there is a considerable risk of frost.

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Section: Agroclimatic Risk Zoningmentioning

confidence: 99%

“…The probabilities of annual frost occurrence were calculated and correlated with altitude and latitude, obtaining a regression equation for the risk of frost. Using adjusted regressions, values greater than 40% were considered to be high risk [26,28,29].…”

Section: Agroclimatic Risk Zoningmentioning

confidence: 99%

Agroclimatic Risk Zoning of Avocado (Persea americana) in the Hydrographic Basin of Paraná River III, Brazil

et al. 2019

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“…The flowering initiation of pineapple plants is affected by the plant weight, varieties and environment conditions (Cunha, 2005). If the plants are too small they cannot be induced to flower successfully even if treated with ethephon (Van de Poel et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Changes in endogenous hormone concentrations during inflorescence induction and development in pineapple (Ananas comosus cv. Smooth Cayenne) by ethephon

Liu¹,

Zang²,

Sun³

2011

Afr. J. Biotechnol.

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This study investigated the changes of five endogenous hormones in the shoot apex and the white bases of D-leaf during the inflorescence induction and development of 'Smooth Cayenne' pineapple, using 14-month-old pot-grown plants as material and ethephon as flower forcing agent. Results showed that application of ethephon increased the level of endogenous ethylene (C 2 H 4), abscisic acid (ABA) and 2-isopentyl adenine (2-iP) while it decreased the concentration of indole-3-acetic acid (IAA), gibberellic acid (GA 3) and zeatin (ZT), and led to the transition of vegetative growth to inflorescence initiation. After inflorescence initiation, the contents of C 2 H 4 , ABA and 2-iP declined but the contents of IAA, ABA and ZT increased. These results indicated that low levels of IAA, GA 3 and ZT and high levels of C 2 H 4 , ABA and 2-iP facilitated inflorescence initiation, while high levels of ZT, IAA and GA 3 and low levels of C 2 H 4 and ABA facilitated inflorescence development.

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“…Pineapple's Crassulacean acid metabolism (CAM) restricts CO 2 uptake to the dark periods of low transpiration (due to stomatal closure) and low evapotranspiration. This makes the pineapple plant highly water use efficient and therefore well adapted to arid conditions although the growth is sensitive to climate [9]. Lack of water at any stage of crop development can, however, result in low productivity [12].…”

Section: Open Accessmentioning

confidence: 99%

“…The contribution of minimum temperature to yield variations was up to 82%, showing the relationship was the greatest which supports the view of Rainha et al [34] that minimum temperature is a critical climate variable in pineapple production. Increases in minimum temperature above 26 °C are known to hinder flower induction and this contributes to loss of yield and quality [9]. Even moderate elevation of temperatures poses possibly significant reduction in flowering of crops [35].…”

Section: Effect Of Climate On Pineapple Yieldmentioning

confidence: 99%

Impact of climate variability on pineapple production in Ghana

Williams¹,

Crespo

Atkinson

et al. 2017

Agric & Food Secur

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Background: Climate variations have a considerable impact on crop production. For pineapple, variable temperatures and rainfall patterns are implicated, yet there is limited knowledge of the conditions and consequences of such variations. Pineapple production plays a major role in Ghana, primarily via socioeconomic impacts and the export economy. The aims of this study were to assess the impact of current climatic trends and variations in four pineapple growing districts in Ghana to provide stakeholders, particularly farmers, with improved knowledge for guidance in adapting to changing climate.Results: Trend analysis, standardized anomaly, correlation analysis as well as focus group discussions were employed to describe climate and yields as well as assess the relationship between climate and pineapple production from 1995 to 2014. The results revealed that, relative to Ga district, temperature (minimum and maximum) in the study areas was increasing over this period at a rate of up to 0.05 °C. Rainfall trends increased in all but Nsawam Adoagyiri district. Rainfall and temperature had different impacts on production, and pineapple was particularly sensitive to minimum temperature as accounting for up to 82% of yield variability. Despite consistent report of rainfall impact on growth stages later affecting quantity and quality of fruits, minimal statistical significance was found between rainfall and yield. Conclusions:With continuously increasing stresses imposed by a changing climate, the sustainability of pineapple production in Ghana is challenged. This subsequently has detrimental impacts on national employment and exports capacity resulting in increased poverty. Further research to explore short-and long-term adaption options in response to challenging conditions in the pineapple industry in Ghana is suggested.

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Applied aspects of pineapple flowering

Cited by 31 publications

References 63 publications

Agroclimatic Risk Zoning of Avocado (Persea americana) in the Hydrographic Basin of Paraná River III, Brazil

Agroclimatic Risk Zoning of Avocado (Persea americana) in the Hydrographic Basin of Paraná River III, Brazil

Changes in endogenous hormone concentrations during inflorescence induction and development in pineapple (Ananas comosus cv. Smooth Cayenne) by ethephon

Impact of climate variability on pineapple production in Ghana

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