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| Registros recuperados: 30 | |
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| Pichard,Gastón. |
| There is little information known about the response of cup-plant (Silphiumperfoliatum L.), a perennial forage crop introduced to Chile, to differing cultivation practices. A series of studies was conducted to evaluate the adaptation and productivity of cup-plant across a range of plant densities (104,000 - 208,000 plants ha-1), cutting stages (early vegetative to seed formation), and different levels of N (0 - 400 kg N ha-1) and P (0 - 400 kg P2O5 ha-1) fertilization. Field experiments (40°S 73°W) were conducted over a 3-yr period in a subhumid, Mediterranean climate on three distinct andisols that originated from volcanic ash, with pH values of 5.2 to 5.6. The forage dry matter yield, plant components (stem count, stem diameter, plant height, and... |
| Tipo: Journal article |
Palavras-chave: Cup-plant; Cutting frequency; Fertilization; Forage crop; Nutritional quality; Population density. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202012000100005 |
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| Lee,Ki-Won; Choi,Gi Jun; Kim,Ki-Yong; Yoon,Sei Hyung; Ji,Hee Chung; Park,Hyung Soo; Lim,Young Chul; Lee,Sang-Hoon. |
| In the present study, genotypic variation of Agrobacterium-mediated transformation of Korean Italian ryegrass has been evaluated. Mature seed-derived calli of seven cultivars were inoculated and co-cultured with Agrobacterium tumefaciens carrying the binary vector pCAMBIA1301, which contains a reporter gene (gus) and a plant selectable marker gene conferring resistance to hygromycin (hpt) in the T-DNA region. The effects of several factors such as callus type and callus age on transformation effectiveness and the expression of the GUS gene were investigated. The highest transformation effectiveness (6.7%) was obtained with the Hwasan 101 cultivar when 9-week-old calli (type-I) were inoculated with Agrobacterium. The overall transformation rates of the... |
| Tipo: Journal article |
Palavras-chave: Agrobacterium; Forage crop; Italian ryegrass; Transgenic plants. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582010000300008 |
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| ITALIANO, E. C.. |
| No Estado do Amazonas, levantamentos realizados no complexo solo-planta-animal indicaram acentuada deficiencia de nutrientes minerais, tais como calcio, cobre, cobalto, zinco, principalmente fosforo, nas pastagens de terra firme dos municipios de Manaus, Itacoatiara e Parintins. Com base nessas deficiencias, foram feitas formulacoes de misturas minerais de modo que bovinos de corte em pastagem de quicuio da Amazonia recebessem quantidades adequadas de fosforo, zinco, cobre, cobalto e iodo. |
| Tipo: Folhetos |
Palavras-chave: Bovino de corte; Brasil; Amazonas; Beef cattles; Forage crop; Mineral supplements; Alimentação; Brachiaria Humidicola; Capim Quicuio; Pastagem; Suplemento Mineral; Feeds. |
| Ano: 1984 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665243 |
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| Registros recuperados: 30 | |
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