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Advances in Coconut palm propagation Rev. Bras. Frutic.
Lédo,Ana da Silva; Passos,Edson Eduardo Melo; Fontes,Humberto Rolemberg; Ferreira,Joana Maria Santos; Talamini,Viviane; Vendrame,Wagner A..
Abstract Coconut palm (Cocos nucifera L.) is one of the most important tropical species used by man, known as “tree of life”. In recent decades, with the expansion of coconut growing areas, limitations such as the occurrence of pests, uniformity of crops, adaptation to different ecosystems and others have affected the production and longevity of coconut trees. This review describes the major advances in propagation techniques of coconut palm, conventionally, by seeds and through plant tissue culture techniques from the mid-twentieth century onwards, as well as phytosanitary aspects that should be considered to mitigate the spread of pests and diseases.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cocos nucifera; Seedling; Micropropagation and diseases.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000201005
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Germination, carbohydrate composition and vigor of cryopreserved Caesalpinia echinata seeds BABT
Zanotti,Rafael Fonsêca; Motta,Ludymila Brandão; Bragatto,Juliano; Labate,Carlos Alberto; Salomão,Antonieta Nassif; Vendrame,Wagner A.; Cuzzuol,Geraldo Rogerio Faustini.
The present study investigated the germination and vigor of Caesalpinia echinata (Brazilwood) seeds stored at negative temperatures. Recently harvested seeds were cryopreserved at -18º or -196ºC and periodically evaluated for germination, seed vigor and carbohydrate composition. The temperatures did not influence the germination percentages or vigor. The germination percentage decreased from 88% in recently harvested seeds to 60% after 730 days of storage. The different temperature and storage times tested did not affect the vigor seed germination as indicated by the measures of plant growth and survival. The different temperatures used did not cause changes in the carbohydrate composition. The tegument cell walls were rich in lignin, arabinose and xylose....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brazilwood; Carbohydrate; Conservation; Germination; Seed bank; Storage.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500004
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Light as an indicator of ecological succession in brazilwood (Caesalpinia echinata Lam.) Braz. J. Plant Physiol.
Mengarda,Liana H. G.; Souza,Rogério L. F. de; Campostrini,Eliemar; Reis,Fabrício O.; Vendrame,Wagner A.; Cuzzuol,Geraldo R. F..
The ecophysiological behavior of brazilwood (Caesalpinia echinata Lam.) plants was evaluated as affected by light quantity and quality. Nine-month-old plants were cultivated under 0%, 50%, and 80% artificial shading, and natural shading imposed by a closed canopy for a period of 392 days. At the end of that period growth parameters were measured, including relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio (LAR), specific leaf mass (SLM) and root:shoot ratio (R:S). Higher leaf area, dry mass and RGR were obtained under 50% artificial shade. Under full sunlight (0% shade), growth was satisfactory showing higher R:S and SLM. Growth was inhibited under 80% artificial and natural shading indicating that C. echinata is not...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chlorophyll fluorescence; Gas exchange; Growth; Light stress; Shade; Tropical tree.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000100007
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