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| Registros recuperados: 3.035 | |
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| Bouzaher, Aziz; Shogren, Jason F.; Holtkamp, Derald; Gassman, Philip W.; Archer, David W.; Lakshminarayan, P.G.; Carriquiry, Alicia L.; Reese, Randall; Kakani, Dharmaraju; Furtan, William Hartley; Izaurralde, R. Cesar; Kiniry, James R.. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Agricultural and Food Policy; Environmental Economics and Policy. |
| Ano: 1996 |
URL: http://purl.umn.edu/18674 |
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| Tanner, Carolyn. |
| With the Punta del Este Declaration, agriculture was accorded prominence in the GATT negotiations and, for the first time, national support policies were on the agenda. In this paper, the progress of the negotiations on agriculture is reviewed in an attempt to understand the factors which shaped the final outcome and to assess the likely impact of the round on liberalising agricultural trade. Although the immediate impact is likely to be modest, the round will provide longer term benefits to agricultural trade through the extension of the GATT rules-based system to agriculture. The framework which has been laid should provide a sound basis for future negotiations. Within the multilateral framework, the pace of change is a function of the willingness of all... |
| Tipo: Journal Article |
Palavras-chave: International Relations/Trade. |
| Ano: 1996 |
URL: http://purl.umn.edu/22359 |
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| Aillery, Marcel P.; Hrubovcak, James; Kramer, Carol S.; Shoemaker, Robbin A.; Tegene, Abebayehu. |
| By broadening the definition of an ecosystem to include economic activities, can we better characterize the interactions and relationships among agricultural activities and important indicators of ecological system health? This paper addresses research approaches for assessing the role of agriculture in an ecosystems context. Environmental regulation and resource management policies have heightened the interest in understanding interactions among agricultural activities and the natural resource base, including the impacts of agriculture on environmental quality and the impacts on agriculture of ecosystem restoration efforts. What are the most meaningful indicators of environmental quality? Which agricultural practices and policies should be considered,... |
| Tipo: Journal Article |
Palavras-chave: Environmental Economics and Policy. |
| Ano: 1996 |
URL: http://purl.umn.edu/31398 |
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| Sangoi,Luís; Salvador,Ricardo. |
| This experiment was conducted in 1994 at Ames, Iowa, US to test whether cytoplasmic male-sterility can be used to decrease barrenness and to increase grain yield of maize at two plant populations. Four genotypes were tested: a hybrid (NK 6330) and an inbred, wifh sterile and fertile counterparts. Each genotype owas evaluated at plant populations equivalent to 25,000 and 75,000 pl. ha-1. Hybrids produced higher grain yield than inbreds at both plant populations. Gram yield was higher at 75,000 than at 25,000 pl. ha-1. No difference in gram yield, number of ears per plant, number of grains per ear, tassel length, and tassel number of branches was found between sterile and fertile counterparts of the inbred and hybrid, regardiess of plant population. Fertile... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Zea mays; Male-sterility; Stress; Gram yield. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781996000300006 |
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| Cavichioli,Rodney R. |
| The genus Alocha Melichar, 1926 (type species: Telligonia sórdida Signoret, 1855) is revalidated. The following new combinations are eslablished: Alocha lugubris (Young, 1977), A. própria (Young, i977)and A. rossi (Young, 1977), A. sórdida (Signoret, 1855) is a comb. rev. A new genus, Albiniana (type-species: Paromenia weyrauchi Young, i977), is described. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cicadellidae; Cicadellinae; Alocha; Albiniana; Neotropical. |
| Ano: 1996 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300017 |
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| Registros recuperados: 3.035 | |
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