Germination of Physalis peruviana L. seeds under varying conditions of temperature, light, and substrate

Diniz, Fábio Oliveira; Chamma, Larissa; Novembre, Ana Dionisia da Luz Coelho

doi:10.5935/1806-6690.20200003

Cited by 5 publications

(7 citation statements)

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“…Regarding the effect of the substrates, it was observed that the substrates between paper (BP) and between vermiculite (BV) promoted higher germination at a temperature of 35 °C, since they allow a larger surface of contact between the substrate and the seeds and, consequently, higher efficiency in water supply. However, for P. peruviana, Diniz, Chamma, and Novembre (2020) recorded no statistical difference between the use of blotter paper (on paper) and vermiculite, with average germination percentages between 65 and 89%, respectively. In this study, although the use of vermiculite promoted…”

Section: Resultsmentioning

confidence: 86%

“…However, the requirement of temperatures above 30 ºC for the germination of P. angulata seeds is also observed in species of the same family. In their study, Diniz, Chamma, and Novembre (2020) found reduction in the germination of P. piruviana seeds, under temperatures of 15 to 20 ºC, while the alternating temperature of 20-30 ºC was more adequate, promoting germination of 70%.…”

Section: Resultsmentioning

confidence: 92%

“…However, Oliveira et al (2013) obtained, in vitro, germination above 80%, under the 16-h photoperiod, at 25 ºC, while Carvalho et al (2014) obtained germination of 89% with 8-h photoperiod, under the alternating temperature of 20-30 ºC. For P. peruviana, Diniz, Chamma, and Novembre (2020) consider that the 8-h photoperiod is a more adequate condition than the absence of light during the germination test.…”

Section: Discussionmentioning

confidence: 90%

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Ecophysiological aspects of the germination of Physalis angulata L. seeds

Santiago,

Gama,

Benedito

et al. 2023

Rev. Caatinga

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Physalis angulata L. (Solanaceae), known as ‘camapu’, has pharmacological and agroindustrial potentials, but information on the ecophysiological aspects that influence germination is scarce. In this context, the objective was to evaluate the expression of the physiological potential of P. angulata seeds as a function of the maturation stage, temperature, substrate and light condition. Four experiments were conducted: in the first, the maturation stages (green calyx + fruit, yellow calyx + fruit and light brown calyx + fruit) were evaluated at temperatures of 25, 30 and 35 °C, separately; in the second, the interaction between the temperatures of 35, 40 and 45 °C and types of substrate (on paper, between paper and between vermiculite) was tested in a 3x3 factorial scheme (temperatures as the first factor and types of substrates as the second factor); in the third experiment, the effect of light (absence of light, white light, red and far-red light) was evaluated; and, in the fourth, increasing values of photoperiods (0, 8, 12 and 16 hours) were used. In all experiments, the design was completely randomized with four replicates of 50 seeds. Analysis of the results showed that there was no interaction between the temperatures and the substrates tested, demonstrating the isolated action of the factors. P. angulata seeds expressed better physiological potential when the calyx and fruit are yellow. In the germination test, the seeds should be sown between paper towels, under temperature of 35 °C and absence of light.

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Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 90%

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Ecophysiological aspects of the germination of Physalis angulata L. seeds

Santiago,

Gama,

Benedito

et al. 2023

Rev. Caatinga

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“…The germination percentage of A. rugosa and A. rubra seeds tended to decrease with decreasing DTR, and the temperature was found to have less of an effect on the germination percentage under fixed temperature conditions than under variable temperature conditions ( Figure 1 , Table 1 ). Previous studies that assessed seed germination under various temperature conditions showed that the influence of DTR varies depending on the species [ 22 , 23 , 24 ]. Thus, for species that are significantly affected by DTR, such as A. rugosa and A. rubra , the influence of temperature should be evaluated in consideration of DMT as well as DTR, especially since the latter is expected to vary considerably under natural conditions.…”

Section: Discussionmentioning

confidence: 99%

Improving Restoration Efficiency by Modeling Optimal Sowing Periods: A Case Study of Two Native Plants and Restoration of a Site

Jung

Kim

Park

et al. 2021

Plants

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Efficient ecological restoration techniques are urgently required to minimize seed consumption and labor requirements. Here, we determined the optimal sowing period for two native species, Agastache rugosa (Korean mint) and Astilbe rubra (False goat’s beard), toward their use for ecological restoration of Mt. Gariwang, a site damaged by the 2018 PyeongChang Winter Olympics’ activities. We investigated the effects of daily mean temperature (DMT) and daily temperature range (DTR) on seed germination percentage, which decreased for both species with decreasing DTR and was optimal at a DMT of 25 °C and 17.5 °C for A. rugosa and A. rubra, respectively. We developed a single multiple regression equation that evaluated the effects of DMT and DTR simultaneously and determined the temperature scores when the germination percentage reached 85%. We applied the developed multiple regression equation by analyzing the temperature data of the restoration site. In addition, precipitation data analysis was added to set the optimal sowing period. As a result, the optimal sowing period for the two species was determined from May 21 to the end of May. This makes it possible to minimize seed consumption and labor requirements when sowing seeds. The model developed herein will be useful not only to guide the ecological restoration of Mt. Gariwang, but also for other regions using site-specific temperature data.

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“…However, optimal temperatures for seed germination in cape gooseberries collected in Sertão (Rio Grande do Sul, Brazil) and Capelinha (Minas Gerais, Brazil), were 27 and 32°C, with 98 and 96% germination respectively (Nunes et al, 2018). Diniz et al (2020) observed that cape gooseberry seeds germinated within a wide range of temperatures between 15 and 30°C, with the best results at 25°C of constant temperature or 20-30°C alternating temperatures, under a lighting of 8 h d -1 light.…”

Section: Environmental Factors Temperaturementioning

confidence: 91%

The ecophysiology of cape gooseberry (Physalis peruviana L.) - an Andean fruit crop. A review

Fischer

Melgarejo²

2020

Rev. Colomb. Cienc. Hortic.

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In order to review the literature on the ecophysiology of the cape gooseberry, it was found that this typical Andean plant, in Colombia adapts to a wide altitudinal range of the tropical cold climate, that is, between 1,800 and 2,800 meters above sea level (m a.s.l.), with optimal medium temperatures between 13 and 16°C and base (minimum) temperatures for stem and fruit growth are relatively low, 6.3 and 1.9°C, respectively, however it does not withstand temperatures <0°C. Likewise, the Andean conditions of the tropics such as high solar radiation and day lengths <12 hours, rather short, favor the flower initiation. 1,500-2,000 hours year-1 of direct sunshine are the most favorable for the size, quality and ripening of the fruit. Under field conditions in Bogota, a photosynthesis rate of A = 10.545 μmol CO2 m-2 s-1 and light compensation point Ic = 13.645 μmol photons m-2 s-1 was measured. As a plant with an indeterminate growth habit, a constant supply of water is essential, while high amounts or heavy rains after a dry season cause cracking of the fruits, just as the plant does not tolerate waterlogging for more than 4 days. Cape gooseberry is classified as moderately tolerant to salinity and 30 mMol NaCl curiously promote growth, having mechanisms, such as increased antioxidant activity, to protect against saline conditions.

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Germination of Physalis peruviana L. seeds under varying conditions of temperature, light, and substrate

Cited by 5 publications

References 0 publications

Ecophysiological aspects of the germination of Physalis angulata L. seeds

Ecophysiological aspects of the germination of Physalis angulata L. seeds

Improving Restoration Efficiency by Modeling Optimal Sowing Periods: A Case Study of Two Native Plants and Restoration of a Site

The ecophysiology of cape gooseberry (Physalis peruviana L.) - an Andean fruit crop. A review

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