2015
DOI: 10.1590/0001-3765201520140029 View full text |Buy / Rent full text
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Abstract: The purpose of this study was to evaluate the chemical, physiological and genetic differences in seeds of cactus of the Cereus genus (mandacaru) cultivated in the Northeast (Picos, State of Piauí) and Southern (Maringá, State of Paraná) regions of Brazil. Over a period of eight days, temperatures of 25°C and 30°C were equally efficient for the germination of all the seeds. Oleic acid (C18:1) was the most common fatty acid found in the seeds collected in the Southern (41%) and Northeast (45.5%) regions. The ana… Show more

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“…Although there is evidence in another species of cactus (Gymnocalycium monvillei) that the characteristics of the germination differ according to the distribution of the plants at different altitudes, 27 differences in the germination rates of the seeds of Cereus plants Maringá and Picos were not detected in current study nor were they observed in a study by Bevilaqua et al 18 No significant differences were observed, at 25°C and 30°C, in the germination rate of the seeds of the two regions. Over a period of four days, the germination rate of seeds maintained at 30°C was greater than the germination rate of seeds maintained at 25°C.…”
Section: Number Weight and Germination Rate Of Cereus Seeds Grown Incontrasting
“…Seed germination was done following Bevilaqua et al 18 Seeds were first soaked in sterilized water for 24 h according to recommendations by Carvalho et al 21 distributed on two sheets of Germitest® type paper moistened with distilled water and packed in plastic Petri dishes. 18 Twenty seeds per plastic Petri dish were used in replicates, with five replicates of seeds obtained from fruits of Maringá and from fruits of Picos, totaling 100 seeds from each region. The experiment was carried out in a germination chamber at 30°C, using a 16h-photoperiod.…”
Section: Methodsmentioning
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“…The fruits were dissected to obtain seeds. Echinocactus platyacanthus , Ferocactus pilosus , Leuenbergeria lychnidiflora , Lophocereus marginatus , Mammillaria carnea , and Myrtillocactus geometrizans seeds were disinfected by immersion in 10% sodium hypochlorite for 5 min, placed on filter paper saturated with distilled water in sterile Petri dishes (Loza-Cornejo et al, 2008; Guillén et al, 2011), and kept at 25°C under a light/darkness photoperiod of 12 h in a germination chamber (Rojas-Aréchiga and Mandujano, 2013; Salas-Cruz et al, 2014; Bevilaqua et al, 2015). Cylindropuntia imbricata and Opuntia streptacantha seeds were scarified with 98% sulfuric acid for 90 min, washed five times with distilled water, disinfected by immersion in 10% sodium hypochlorite for 5 min, and placed on filter paper saturated with distilled water in sterile Petri dishes (Sánchez-Soto et al, 2010; Monroy et al, 2017).…”
Section: Methodsmentioning
“…The importance of seed plants to humans is unquestionable and they have been studied for a wide range of aspects (Azevedo et al 1997, Carvalho et al 2011, Bevilaqua et al 2015, Dresch et al 2015, Sneideris et al 2015, Soares et al 2015, but in particular to their nutritional quality due to their consumption by animals and humans (Azevedo et al 1997). Cereals and legume seeds are significant plant protein sources in the human diet (Azevedo et al 1990).…”
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