High summer temperatures inhibit flowering in vine pitaya crops (Hylocereus spp.)

Nerd, Avinoam; Sitrit, Yaron; Kaushik, R. A.; Mizrahi, Yosef

doi:10.1016/s0304-4238(02)00093-6

Cited by 60 publications

(54 citation statements)

References 2 publications

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“…Hylocereus undatus (Haworth) Britton & Rose is the most widely cultivated species and is grown for its fruit, which is red with white pulp (Nerd et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Physical and chemical characteristics of pitaya fruits at physiological maturity

Ortiz¹,

Takahashi²

2015

Genet. Mol. Res.

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“…Hylocereus undatus (Haworth) Britton & Rose is the most widely cultivated species and is grown for its fruit, which is red with white pulp (Nerd et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Physical and chemical characteristics of pitaya fruits at physiological maturity

Ortiz¹,

Takahashi²

2015

Genet. Mol. Res.

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“…In pitaya, the optimum day/night air temperature for CO 2 uptake are 30/20°C Barrera, 2002, 2004), and extremely high summer temperatures inhibit growth (Nerd et al, 2002). In the present study, the summer temperatures were assumed to be almost ideal, although the highest temperature was probably higher than ideal.…”

Section: Discussionmentioning

confidence: 80%

Seasonal Differences in Diurnal Patterns of Metabolites and Enzyme Activities in Pitaya (Hylocereus undatus) Grown in a Temperate Zone

Nomura

Ide

Ashida

et al. 2010

J. Japan. Soc. Hort. Sci.

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Pitaya is a crassulacean acid metabolism (CAM) plant that is normally grown in subtropical regions, but it would be useful to cultivate this crop in temperate regions. In this study, we measured concentrations of organic acids and carbohydrates, and activities of the enzymes phosphoenolpyruvate carboxylase (PEPC), malic enzyme (ME), and malate dehydrogenase (MDH) in pitaya grown in a temperate zone, and compared the diurnal changes in these components between winter and summer. In summer, the diurnal changes in malate, citrate, and starch in pitaya were typical of starch-using CAM plants. Activities of PEPC and ME also showed typical CAM-type diurnal patterns in summer. In particular, changes in ME activity were closely associated with changes in malate content. In winter, changes in malate content showed a typical CAM pattern, although the amount accumulated was only half of that accumulated in summer, however, the citrate content in winter remained at an almost constant low level throughout the day. PEPC and ME activities were almost constant through the day in winter, however, PEPC activity in winter was similar to its minimum level in summer, whereas ME activity in winter was similar to its maximum level in summer. MDH activity was higher in summer than in winter, but there was no distinct diurnal pattern observed in either summer or winter. These results suggest that pitaya shows normal photosynthesis and metabolism in summer. In winter, however, malate accumulation is restricted, result in decreased concentrations of downstream products and metabolites. This may be because of decreased PEPC activity and increased ME activity during the night in winter. Our results suggest that temperature is not the only factor that affects CAM in this plant, because the summer temperature in this study was similar to the winter temperature in our previous study, which was carried out in a subtropical region (Ishigaki Island). Furthermore, diurnal profiles of metabolites and enzyme activities in both regions were similar in summer and winter; therefore, daylength may also be an important environmental factor.

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“…Em Lavras -MG, o florescimento da pitaya se dá em três a cinco surtos de floradas (MARQUES et al, 2011), entre novembro a março, enquanto que, em Israel, o florescimento de H. undatus, H. polyrhizus e H. costaricensis (estas duas últimas espécies de polpa roxa) ocorrem em dois ou três fluxos durante o verão (WEISS et al, 1994). NERD et al (2002), também em trabalho realizado em Israel, observaram que o florescimento de H. undatus e H. polyrhizus, nas zonas costeiras, ocorreu no verão e outono, com três ou quatro fluxos, enquanto nas regiões de vale foi restrito ao outono, com um pequeno fluxo (menos que cinco flores por metro linear). Estes autores observaram que as altas temperaturas que prevalecem nos vales inibem a produção de flores em ambas as espécies estudadas.…”

Section: Resultados E Dicussãounclassified

“…Nos diferentes fluxos e épocas avaliadas, o florescimento ocorreu entre 18 e 23 dias após o surgimento da gema florífera, concordando com NERD et al (2002), que afirmam que o desenvolvimento da gema, até a antese, é de cerca de três semanas. Na região de Lavras, MG, o florescimento ocorre entre 19 a 21 dias após a emissão das gemas (MARQUES et al, 2011).…”

Section: Resultados E Dicussãounclassified

Fenologia reprodutiva da pitaya vermelha em Jaboticabal, SP

Silva

Cavallari²,

Sabião

et al. 2015

Cienc. Rural

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show abstract

High summer temperatures inhibit flowering in vine pitaya crops (Hylocereus spp.)

Cited by 60 publications

References 2 publications

Physical and chemical characteristics of pitaya fruits at physiological maturity

Physical and chemical characteristics of pitaya fruits at physiological maturity

Seasonal Differences in Diurnal Patterns of Metabolites and Enzyme Activities in Pitaya (Hylocereus undatus) Grown in a Temperate Zone

Fenologia reprodutiva da pitaya vermelha em Jaboticabal, SP

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