Biblioteca do Café
URI permanente desta comunidadehttps://thoth.dti.ufv.br/handle/123456789/1
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Item Sprouting induction for micro-cutting on in vitro cloned arabica coffee plants(Editora UFLA, 2018-10) Angelo, Paula Cristina da Silva; Ferreira, Iran Bueno; Reis, André Moraes; Bartelega, Lucas; Carvalho, Carlos Henrique Siqueira de; Paiva, Ana Carolina Ramia Santos; Matiello, José BrazVegetative propagation of arabica coffee plants selected by their agronomic value has been accomplished routinely in Brazil for scientific purposes, through somatic embryogenesis and rooting of stem cuttings. Somatic embryogenesis is the election method when a very high number of cloned plants is demanded. Nevertheless, the costs of in vitro multiplication make difficult to explore it commercially. The experiments described herein aimed to amplify the number of in vitro cloned plants, post acclimatization, to reduce costs. Different concentrations of 2,3,5-triiodobenzoic acid (TIBA) and its association with benzylaminopurine (BAP) were applied, as successive pulses, in the 3 rd , 8 th and 13 th months after transference to the greenhouse, on the same set of Catucaí and Siriema in vitro cloned plants, to induce sprouting. At the 8 th month, the experiments with in vitro cloned Catucaí plants were reproduced in the nursery, for comparison. Best results were observed for the association TIBA 1000 mg.mL-1 + BAP 60 mg.mL-1 applied in the greenhouse, at the 13 th month, when, on average, 8.5 and 7.0 micro-cuttings above 1 cm in length were produced using sprouts taken from each Catucaí and Siriema acclimatized plant, respectively. Applying this treatment twice a year, and harvesting induced sprouts each six months after the induction treatments, approximately 15 plants per each acclimatized one can be produced. The most important effect of TIBA was the induction of sub-apical sprouting. Greenhouse would be the best environment to apply successive pulses of sprouting inducers to coffee in vitro cloned plants.Item Produtividade de clones de café arábica produzidos por embriogênese somática(Embrapa Café, 2013) Carvalho, Carlos Henrique S.; Paiva, Ana Carolina R. S.; Ferreira, Iran Bueno; Matiello, José Braz; Almeida, Saulo Roque; Ferreira, Roque Antônio; Ramos, Spartacus V.; Marçal, Gabriella A.; Marques, Bruna N.; Souza, Danielle S.O desenvolvimento de novas cultivares pode consumir até 30 anos de trabalho. Uma maneira mais rápida de desenvolver cultivares de café é através da seleção de plantas matrizes, a seleção das plantas com as características de interesse pode ser feita em 10 anos.Item Desinfecção de sementes de café visando a germinação in vitro(Embrapa Café, 2015) Carvalho, Carlos Henrique Siqueira de; Paiva, Ana Carolina S. R.; Ferreira, Iran Bueno; Matiello, José Braz; Almeida, Saulo Roque de; Silva, Maurício Bento da; Abreu, Mariana Pinto; Fernandes, Betel Silva; Oliveira, Tamiris Nilza deEste trabalho visou avaliar a eficiência do formol na desinfecção de sementes de café, objetivando a germinação in vitro e o resgate de embriões.