|
|
|
| Registros recuperados: 70 | |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Pessoa,José Dalton Cruz; Calbo,Adonai Gimenes. |
| According to the model frequently used as reference, plant cell growth occurs only when turgor surpasses a threshold. This model was proposed considering a cylindrical cell of constant wall thickness immerged in a water solution, with viscoelastic behaviour, hydraulic conductivity, variable extensibility, and unidirectional elongation. The author, Lockhart (1965), did not consider the effects of apoplasm hydrostatic potential, a subject treated later by Calbo and Pessoa (1994) who argued that this component of cell potential would interfere with cell growth rate. To evaluate this effect, where possible the same deductive procedures as those employed by Lockhart were used here, which resulted in a set of equivalent equations for cell growth, turgor and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apoplasm; Cell wall; Growth; Lockhart; Model; Plant. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202004000100003 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| POTT, E. B.. |
| A grama tio-pedro (Paspalum oteroi Swallen), submetida a intervalos entre cortes de 28, 56, 84 e 112 dias, apresentou, respectivamente, coeficientes de digestibilidade in vitro de 57,21%, 48,37%, 47,66% e 49,88%; teor de proteina bruta de 8,26%, 7,12%, 6,00% e 5,44%; teor de calcio de 0,50%, 0,56%, 0,58% e 0,35%; e teor de fosforo de 0,15%, 0,13%, 0,20% e 0,14%. |
| Tipo: Folhetos |
Palavras-chave: Forrageira nativa; Regiao tropical; Mato Grosso do Sul; Paspalum oteroi; Minerais; Plant; Native forage; Pasture; Analysis; Análise; Digestibilidade In Vitro; Gramínea; Pastagem; Planta; Pantanal; Grasses; In vitro digestibility; Minerals. |
| Ano: 1982 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787710 |
| |
|
| |
|
| |
|
| |
|
|
| Pardey, Philip G.; Koo, Bonwoo; Wright, Brian D.; Van Dusen, M. Eric; Skovmand, Bent; Taba, Suketoshi. |
| Worldwide, the number of genebanks and the amount of seed stored in them has increased substantially over the past few decades. Most attention is focused on the likely benefits from conservation, but conserving germplasm involves costs whose nature and magnitude are largely unknown. Because more resources spent on conserving germplasm often means less spent on characterizing the collection or using the saved seeds in crop-improvement research, knowledge of the costs of germplasm conservation has important, possibly long run, R&D management, policy, and food-security consequences. Moreover, these costs place a lower bound on the benefits deemed likely to justify the expense of saving this seed. In this paper we compile and use a set of cost data for... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Germplasm conservation; Gene banks; Plant; Maize -- Breeding; Wheat -- Breeding; Rate of return; Resource /Energy Economics and Policy. |
| Ano: 1999 |
URL: http://purl.umn.edu/97509 |
| |
| Registros recuperados: 70 | |
|
|
|
