2001
DOI: 10.1590/s0100-84042001000100004
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Effects of moisture content and temperature during storage on germination of the achenes of Bidens gardneri Baker

Abstract: -(Effects of moisture content and temperature during storage on germination of the achenes of Bidens gardneri Baker). Bidens gardneri is a herbaceous species of the cerrados, whose seeds are light sensitive at 25°C, but they become indifferent to light when stored in soil. In this work the effects of moisture content, temperature and light (during storage) upon light sensitivity during germination were studied. Ripe achenes were collected in the cerrados of Itirapina and Moji Guaçu, State of São Paulo, Brazil.… Show more

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Cited by 4 publications
(6 citation statements)
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“…Achenes stored for up to six months at 4°C showed light sensivity, but after nine months storage, the photoblastic response is lost for the shortest and longest achenes (Sassaki et al, 1999b). Alternate temperatures during storage of achenes with high moisture content followed by alternate temperatures during germination change the light sensitivity of the achenes (Rondon et al, 2001). According to the authors, this could explain the germination of the achenes during storage in the soil.…”
Section: Herbaceous Speciesmentioning
confidence: 99%
“…Achenes stored for up to six months at 4°C showed light sensivity, but after nine months storage, the photoblastic response is lost for the shortest and longest achenes (Sassaki et al, 1999b). Alternate temperatures during storage of achenes with high moisture content followed by alternate temperatures during germination change the light sensitivity of the achenes (Rondon et al, 2001). According to the authors, this could explain the germination of the achenes during storage in the soil.…”
Section: Herbaceous Speciesmentioning
confidence: 99%
“…It was also seen that the moisture increased initially slowly upto30 days of storage period and then it increased rapidly as relative humidity increases day-by-day. The elevation in water activity with storage period was observed which had similar trend as moisture content (Rondon et al, 2001).…”
Section: Resultsmentioning
confidence: 53%
“…In Bihar, farmers store Maize crop in homes, on the field, in the open, jute or polypropylene bags, clay structures and baskets. During storage, quantitative as well as qualitative losses occur due to insects, rodents and micro-organisms (Rondon et al, 2001;(Murdock, 2014)). …”
Section: Introductionmentioning
confidence: 99%
“…2021 as sementes aptas a responderem às flutuações térmicas possuem mecanismos enzimáticos que funcionam a diferentes temperaturas, de maneira que a germinação é iniciada apenas quando ocorre variação térmica que dá início ao processo catalisado por essas enzimas. Em Bidens gardneri, uma herbácea ocorrente em áreas abertas e marginais de Cerrado, as temperaturas alternantes de 20 a 30ºC durante o armazenamento de aquênios com teor alto de água aumentam a germinação no escuro e, portanto, alteram a resposta fotoblástica (Rondon et al, 2001).…”
Section: Tratamentos Códigos Dos Tratamentosunclassified