Determination of the cardinal temperatures of Purple mango cultivar through computer simulation using a nonlinear model

Callejas, Ivan Julio Apolonio; Neves, Geraldo Aparecido Rodrigues; Tavares, Andreia da Silva; Moura, Ivanete Barbosa de; Lima, É. A. de

doi:10.5935/ambiencia.2014.01.08

Cited by 2 publications

(2 citation statements)

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“…To enable quick and uniform emergence, budding must occur under near ideal environment conditions. CALLEJAS et al (2014) reported that the respiration, photosynthesis, growth and developmental rates are dependent on temperature. Therefore, it is vitally important to know the optimum temperature at which these processes are not adversely affected.…”

Section: Resultsmentioning

confidence: 99%

Cardinal temperatures for planting-emergence phase in gladiolus

et al. 2017

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The objective of this study was to determine the cardinal temperatures for the planting-emergence phase of gladiolus. A controlled environment experiment was performed in a growth chamber in the Universidade Federal do Pampa - Campus Itaqui, using the completely randomized experimental design with 12 temperature treatments (5°C, 7°C, 10°C, 13°C, 16°C, 18°C, 20°C, 22°C, 25°C, 30°C, 33°C, 35°C) and ten replicates. Corms of the cultivar ‘Amsterdam’ were planted at a depth of 10cm in 1.7dm3 pots. Every day the date of emergence of the gladiolus plants was observed. Then for each treatment, the emergence rate was calculated as the inverse of the duration of the budding phase, and estimated data were achieved employing the non-linear model of simulation. The lower base and upper base temperatures were identified at the non-emergence temperatures. To estimate the optimum temperature, the root of mean square error was used. Between 22 and 25ºC the planting-emergence phase was reported to be completed in a shorter time span, although the smaller root mean square error was achieved at 22.5ºC. The cardinal temperatures of the planting-emergence phase of gladiolus, lower base, optimum and upper base temperature were 5°C, 22.5°C and 35°C, respectively.

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Section: Resultsmentioning

confidence: 99%

Cardinal temperatures for planting-emergence phase in gladiolus

et al. 2017

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“…Cultivar Tb ( [3] Calypso 10 n/a Christmas tree 1640 adjacent Australia [2] Honey Gold 12 n/a asparagus 1800 on farm Australia [4] Honey Gold 12 n/a Christmas tree 1500 adjacent Australia [2] R2E2 12 n/a asparagus 1800 on farm Brazil [5] Tommy Atkins 13 32 Christmas tree 1428 adjacent Brazil [6] Tommy Atkins 13 32 fruit set 1158 adjacent Brazil [7] Alfa 10 n/a Christmas tree 2117 1 km from farm Brazil [8] Roxa 10.6 n/a pea size fruit 1710 n/a Brazil [9] Uba 10 n/a bud swelling 2399 n/a Mexico [10] Tommy Atkins 10 n/a Christmas tree 1600 inside canopy Mexico [10] Keitt 10 n/a Christmas tree 2100 inside canopy Mexico [10] Kent 10 n/a Christmas tree 1800 inside canopy Mexico [10] Ataulfo 10 n/a Christmas tree 1600 inside canopy India [11] Alphonso 10 n/a fruit set 1867 n/a India [11] Alphonso 17.9 n/a fruit set 919 n/a India [12] Kesar 17.9 n/a fruit set 1020 n/a References: Diczbalis et al [1], Moore [2]; Hofman et al [3]; Winston et al [4], Castro et al [5], Rodrigues et al [6], Barros et al [7], Callejas et al [8], Lemos et al [9], Osuna-Garcia [10], Zagade et al [11], Halepotara et al [12].…”

Section: Locationmentioning

confidence: 99%

Growing Degree Day Targets for Fruit Development of Australian Mango Cultivars

Amaral

McConchie

Dickinson³

et al. 2023

Horticulturae

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A forward estimate of mango (Mangifera indica L.) harvest timing is required for farm management (e.g., for organization of harvest labour and marketing). This forward estimate can be based on accumulated growing degree days (GDD) from an early stage of flowering to fruit harvest maturity, with fruit maturity judged on a destructive assessment of flesh colour and dry matter content. The current study was undertaken to improve GDD targets for Australian mango cultivars, to improve estimation of harvest maturity, and to document a methodology recommended for future work characterizing fruit maturation GDD for other mango cultivars. An alternate algorithm on GDD calculation involving use of a function that penalizes high temperatures as well as low temperatures was demonstrated to better predict harvest maturity in warmer climates. Across multiple locations and seasons, the required heat units (GDD, Tb = 12 °C, TB = 32 °C; where TB is upper base temperature of 32 °C and Tb is lower base temperature of 12 °C) to achieve maturity from asparagus stage of flowering was documented as 2185, 1728, and 1740 for the cultivars Keitt, Calypso and Honey Gold, respectively. GDD difference between the asparagus and two-thirds floral opening stages of flowering was 188 ± 18 for Calypso, 184 ± 12 for Honey Gold, 238 ± 21 for Keitt and 175 ± 10 for KP. Colour specifications for a colour card set suitable for maturity assessment of all cultivars was also proposed. A flesh colour harvest maturity card specification of 9 was proposed for the cultivar Honey Gold and 13 for the cultivar Keitt.

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Determination of the cardinal temperatures of Purple mango cultivar through computer simulation using a nonlinear model

Cited by 2 publications

References 15 publications

Cardinal temperatures for planting-emergence phase in gladiolus

Cardinal temperatures for planting-emergence phase in gladiolus

Growing Degree Day Targets for Fruit Development of Australian Mango Cultivars

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