Inflorescence and fruit development and yield.

Bartholomew, D. P.; Malézieux, Éric; Sanewski, Garth M.; Sinclair, Eric Russell

doi:10.1079/9780851995038.0167

Cited by 30 publications

(23 citation statements)

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“…The great diversity in planting density observed could also contribute to the quality and heterogeneity in quality of pineapple. High planting densities reduce growth (Zhang, 1992) and consequently average plant weight, decrease fruit diameter (Treto et al, 1974;Zhang, 1992) and fruit length (Norman, 1978), increase the total acids concentration and reduce the total soluble solids (Chada et al, 1974;Mustaffa, 1988;Bartholomew et al, 2003a). Another source of heterogeneity in quality could be the different fertilisation practices since the nutritional status of the pineapple influences its growth and consequently its yield and quality (Malézieux and Bartholomew, 2003).…”

Section: Discussionmentioning

confidence: 99%

Analysis of Pineapple Production Systems in Benin

Hotegni¹,

Lommen²,

Vorst

et al. 2012

Acta Hortic.

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In Benin, pineapple is an important fruit crop, mainly grown in the Atlantic department. The overall quality of the two cultivars grown, 'Sugarloaf' and 'Smooth Cayenne', does not meet the requirements for some outlets and the heterogeneity in fruit quality within and between lots is high. This paper (1) describes and analyses the pineapple production systems of 'Sugarloaf' and 'Smooth Cayenne' and (2) identifies the main constraints reducing the quality of pineapple produced. First, semi-structured interviews were carried out with key informants including producers' organisations, input supplier and extension agents. Next, an in-depth questionnaire was carried out with 100 producers in the Atlantic department. Additionally, pedological and meteorological information was collected. Results indicated that pedo-climatic conditions in the Atlantic department were favourable for pineapple cultivation. The production practices were very diverse for both cultivars, especially regarding planting material used (slips, hapas and suckers), planting density, flowering induction time, and fertiliser application. The production systems of the two cultivars differed in type of planting material used, planting density, use of K 2 SO 4 , number of fertiliser applications and ethephon application. In 'Smooth Cayenne' cultivation, only hapas and suckers were used, planting density was lower, the number of fertiliser applications was higher, K 2 SO 4 was generally used and maturity was more often synchronised than in 'Sugarloaf' cultivation. The main constraints were availability of appropriate planting material, heterogeneity in weight, age and leaf number of planting material, and availability and high costs of fertilisers. Tackling all these constraints would help producers improve the quality of produced pineapple in Benin.

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Section: Discussionmentioning

confidence: 99%

Analysis of Pineapple Production Systems in Benin

Hotegni¹,

Lommen²,

Vorst

et al. 2012

Acta Hortic.

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“…Its pulp and products are very popular and widely consumed by all the people over the world. As a kind of herbaceous perennial plant, the spike-like inflorescence exerts from the leaf bunches on the top then develops to a multiple accessory fruit ( Bartholomew et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

“…reaches the ripe-to-flower stage, low temperature or cold treatment can stimulate the D-leaf to release ethylene, which then leads to flowering (Min and Bartholomew, 1997). Usually, intervarietal hybrids are more likely to flower naturally (Bartholomew et al, 2003). However, natural flowering out of season can cause precocious fruiting, decreased yield or disrupt the forcing plan of growers (Scott, 1997).…”

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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“…Por ser uma cultura de clima tropical, temperaturas baixas podem reduzir a produtividade e até causar a morte das plantas. De acordo com Bartholomew et al (2003), temperaturas abaixo de 20°C diminuem o crescimento da planta, favorecendo a ocorrência de florações naturais precoces das plantas, o que dificulta o manejo da cultura e leva a produção de frutos com peso abaixo do padrão de mercado. Cunha et al (2009) destacam que temperaturas baixas reduzem o tamanho das folhas e a absorção de nutrientes com consequências no crescimento e na produtividade da cultura.…”

Section: Resultsunclassified

Zoneamento agroclimático da cultura do abacaxizeiro no Estado do Paraná

et al. 2014

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ResumoO estado do Paraná localiza-se em uma região de transição climática, abrangendo regimes térmicos diferentes e variações no risco de geadas. O abacaxizeiro (Ananas comosus L.) é uma cultura sensível às condições climáticas e o conhecimento dos riscos a que a cultura estará exposta é importante para o seu sucesso. O objetivo deste trabalho foi efetuar o zoneamento agroclimático para o cultivo do abacaxizeiro no estado do Paraná. Foram verificados os limites adequados das variáveis climáticas e avaliadas a temperatura média anual, a temperatura do mês mais frio, o risco anual de geadas, o risco de deficiência hídrica, o número de horas de insolação anual e o fotoperíodo no Estado. O Paraná possui áreas com baixo risco climático para a cultura do abacaxizeiro. A temperatura média anual acima de 19°C, a temperatura média do mês mais frio superior a 15,5°C e a altitude inferior a 600 m permitiram delimitar áreas aptas ao cultivo do abacaxizeiro no Paraná. A deficiência hídrica anual não é limitante ao cultivo do abacaxi no Estado. A temperatura média anual e o fotoperíodo podem induzir naturalmente o florescimento do abacaxi no Estado. Destacam-se as regiões Oeste, Noroeste e Norte, com temperatura média anual superior a 22°C, que são as mais recomendadas ao cultivo. Nas regiões com temperatura média anual entre 19 e 22°C, a escolha do local de cultivo deve ser criteriosa, levando-se em conta o risco de geada local. As regiões Centro, Sul e Leste não são recomendadas, por apresentarem faixas de temperatura abaixo do mínimo exigido. Palavras-chave: Riscos climáticos, Ananas comosus, geada, indução floral AbstractThe state of Paraná is located in a region of climatic transition, with different thermal regimes and variations of frost risk. Pineapple (Ananas comosus L.) is a sensitive crop to climatic conditions and knowledge of risks to which it is exposed is crucial to obtain success. The objective of this study was to perform the agroclimatic zoning for pineapple cultivation in the state of Paraná. Suitable limits of major climate variables were defined and assessed for the state, considering annual mean temperature, mean temperature of the coldest month, annual risk of frost, risk of water deficit, mean annual number of hours of sunshine and photoperiod. Paraná has a low climate risk areas for the cultivation of pineapple. Mean annual temperature above 19°C, mean temperature of coldest month above 15.5°C and altitude below 600 m helped to determine areas suitable for cultivation of pineapple in Paraná state. The annual 1 Eng

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Inflorescence and fruit development and yield.

Cited by 30 publications

References 0 publications

Analysis of Pineapple Production Systems in Benin

Analysis of Pineapple Production Systems in Benin

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

Zoneamento agroclimático da cultura do abacaxizeiro no Estado do Paraná

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