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The banana tree is cultivated from north to south of the country and the main cultivars used are susceptible to pests, with low productivity and some are very tall. The project aims to continue the banana breeding program underway since 1983 and aims to create and agronomically evaluate banana genotypes; assess resistance / tolerance to biotic and abiotic stresses; develop basic studies aimed at generating knowledge for pest control in support of the breeding program; use tissue culture techn ...Status: Completed Start date: Fri Feb 01 00:00:00 GMT-03:00 2008 |
| Bananas are one of Brazil's main agricultural products, having great economical significance. With a production reaching over five million tons annually, the fruit is a source of food for millions of people around the world. However, the plantations have been facing diseases and plagues which reduce the productive cycle once the local farmers are oblivious to certain agricultural practices. In the Amazon, the need to increase the crops is hindered by the lack of quality genetic strains for disse Status: Completed Start date: Sun Apr 01 00:00:00 GMT-03:00 2007 |
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Rice and wheat are the two main sources of calories in the human diet, and both are important crops that are exported to the USA. Rice blast, which is caused by the Magnaporthe oryzae fungus, is a limiting factor for the global production of rice and constitutes a very serious emerging threat to wheat in the USA. Research on the disease in last the 20 years has provided a wealth of understanding on the molecular foundation for rice resistance to blast and on M. oryzae's pathogen ...Status: Completed Start date: Tue Jan 01 00:00:00 GMT-03:00 2013 |
| Evaluate the influence of the following production systems: soybean/off-season cotton, soybean/off-season maize, and cotton-off-season maize over the intra and inter-population genetic variability, need to control, and insecticide resistance levels of brown stink bug Euschistus heros. Status: Completed Start date: Tue May 01 00:00:00 GMT-03:00 2012 |
| The control of spittlebugs, in general, is compromised by the failure to recognize that the impact of this insect pest can vary greatly, due to taxonomic diversity, the extent of habitats, climatic factors and pasture management. Furthermore, insects and plants co-evolve and this factor must be taken into account, since the discovery of resistant cultivars requires a relatively long period and the knowledge of the bases of the insect-pest interaction with the plant can be a key point for the ree Status: Completed Start date: Fri Aug 01 00:00:00 GMT-03:00 2008 |
| The program of genetic improvement of the cupuaçu tree ( Theobroma grandiflorum) needs to tend to the demand of new cultivares, especially of those resistant to the Monilophthora perniciosa fungus, the agent responsible for causing the deformity known as witch's broom disease, and also to increase as much as possible the genetic base of planting material. This project aims to develop new technologies which promote the quick multiplication of selected cultivares, as well as to early select ... Status: Completed Start date: Wed Apr 01 00:00:00 GMT-03:00 2009 |
| Along with current demand for palm oil ("dendê" oil) by the industries of food, pharmaceuticals, chemicals, and bio-fuel, it is important to encourage the advance of researches regarding handling techniques that allow longevity, increase in cultivated areas and productivity of the Palm Oil Tree ( Elaeis guineensis Jacq.). Status: Completed Start date: Wed Apr 01 00:00:00 GMT-03:00 2009 |
| Spittlebug, Mahanarva spectabilis (Hemiptera: Cercopidae) is capable to cause drastic losses in production and quality of pastures established with grasses. Currently, the use a grass resistant cultivar, to be obtained by means of constitutive antibiosis, is the best spittlebug controlling method. However, the time required for releasing a cultivar after detecting a spittlebug-resistant strain is relatively long. Allied to this, one should take into consideration that the adaptations of Status: Completed Start date: Mon Jun 01 00:00:00 GMT-03:00 2015 |
| GM crops that are resistant to glyphosate have created a new scenario in Brazilian agriculture. Glyphosate has been generally used mainly in soybean farms in the Brazilian states of Rio Grande do Sul, Santa Catarina and Paraná. In the state of São Paulo, glyphosate is widely used in orchards, especially citrus ones. The repeated use of glyphosate has given rise to cases of weed resistance to this herbicide in different places of the country. The trend is that new glyphosate resistant crops such ... Status: Completed Start date: Fri Apr 01 00:00:00 GMT-03:00 2011 |
| Embrapa Gado de Leite has the main Elephant Grass Germplasm Active Bank (BAGCE) in the country. However, the main species of grasshopper (Hemiptera: Cercopidae) and the genetic variability for resistance to these pest insects were not known. Therefore, the objective of this work was to study the population dynamics of spittlebugs and to evaluate the accessions of the elephant grass germplasm bank, regarding resistance to Mahanarva liturata. The population dynamics of cercopids in Coronel Pacheco Status: Completed Start date: Fri Aug 01 00:00:00 GMT-03:00 2008 |