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| Santos, Fabíola Carvalho; Universidade Federal de Lavras; Techio, Vânia Helena; Universidade Federal de Lavras; Freitas, Aline Silva; Universidade Federal de Lavras; Castro, Evaristo Mauro de; Universidade Federal de Lavras; Davide, Lisete Chamma; Universidade Federal de Lavras; Sobrinho, Fausto Souza; Empresa Brasileira de Pesquisa Agropecuária. |
| Studies on morphological plasticity are extremely important to plant breeding seeking to optimize genotype interactions with their environments. The present study evaluated 38 genotypes of Brachiaria ruziziensis cultivated during the rainy (October to March) and dry (April to September) seasons and examined variations in their anatomical characteristics. Fully expanded leaves were collected and fixed in FAA70 (formaldehyde: acetic acid: ethyl alcohol) for 72h and subsequently stored in 70% alcohol. Median sections of leaf blades were examined and evaluated according to traditional plant anatomical procedures. Genotypes 15, 27, 40, 53, and 90 demonstrated interactions with the environment in five of the anatomical characteristics evaluated; genotypes 1 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 2.03.00.00-0; 2.03.02.03-7 morphological plasticity; Plant anatomy; Plant breeding; Forage Anatomia vegetal. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/18265 |
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| Soares, Joyce Dória Rodrigues; Universidade Federal de Lavras; Pasqual, Moacir; Universidade Federal de Lavras; Araujo, Aparecida Gomes de; Universidade Federal de Lavras; Castro, Evaristo Mauro de; Universidade Federal de Lavras; Pereira, Fabricio José; Universidade Federal de Lavras; Braga, Francyane Tavares; Universidade Federal de Lavras. |
| Research on anatomical modifications under in vitro culture is essential to the definition and understanding of the development of micropropagated plants. Likewise, such research is essential to improve the steps of the acclimatization process. Accordingly, the objective of the present study is to verify the differences in the leaves anatomical traits of micropropagated orchids under calcium silicate concentrations. Seedlings of in vitro-germinated seeds, measuring 0.5 cm in length, were inoculated in 250 cm3 pots with 60 mL MS culture medium and different silicon concentrations (0, 0.5, 1.0 and 2.0 mg L-1) in different culture environments (natural environment, in a greenhouse and an artificial environment in a growth chamber) and in all statistical... |
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Palavras-chave: Microscopy; Orchidaceae; In vitro culture; Calcium silicate microscopy; Orchidaceae; In vitro culture; Calcium silicate. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15062 |
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