| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
13/04/2000 |
|
Data da última atualização: |
15/10/2004 |
|
Autoria: |
MESQUITA, C. M.; HANNA, M. A.; COSTA, N. P. |
|
Título: |
New threshing/harvesting device for soybeans and rice. |
|
Ano de publicação: |
1999 |
|
Fonte/Imprenta: |
In: WORLD SOYBEAN RESEARCH CONFERENCE, 6., 1999, Chicago. Proceedings: invited and contributed papers and posters. Chicago: University of Illinois / Soybean Research & Development Council, 1999. |
|
Páginas: |
p.576 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Joint research conducted by the National Soybean Research Center of Embrapa, Brazil, and the department of Biological Systems Engineering of University of Nebraska, Lincoln, was aimed at the design and development of new thresher/harvester concept for soybeans and other grain crops. The research, wich also was supported by ROTA industry of farm Machinery, from Brazil, resulted in an experimental prototype for threshing/harvesting soybeans and rice from standing, uncut plants. It used impact energy provided by nylon cords, fixed in a spiral path on opposite rotating shafts, striking the soybeans and the rice seeds from both sides of the plant row in upward direction. The device threshed 95.4% of the soybeans at average ground speed of 6.6km/h, being statiscally lower than 99% threshed at 3km/h. On the other hand, 25.8% of the material other than grain (MOG), removed at 6.6km/h, also was significantly less than the 32.1% of MOG remove at 3km/h. The 76.3% seed vigor value obtained at 6.6km/h was not significantly different from the 78.5% vigor of the hand threshed, but was significantly higher than the 67.1%, and 63.5% seed vigor values obtained when threshed by the device at 3km/h, and by a conventional combine, respectively. Tetrazolium and hypochlorite tests indicated that the numbers of mechanically damaged seeds caused by hand threshing and by the device working at the observed ground speeds, were not significantly different. However, they were statistically lower than the mechanically damaged and broken seeds resulting from conventional combining. The estimated average energy/ha required by the threshing device was approximately 4 MJ/ha, or about one-eight of that required by the tangentially fed threshing cylinder and concave of conventional combines. Preliminary tests with dryland rice showed 99.1% threshing efficiency and 8.6% MOG removed at a ground speed of 3km/h. MenosJoint research conducted by the National Soybean Research Center of Embrapa, Brazil, and the department of Biological Systems Engineering of University of Nebraska, Lincoln, was aimed at the design and development of new thresher/harvester concept for soybeans and other grain crops. The research, wich also was supported by ROTA industry of farm Machinery, from Brazil, resulted in an experimental prototype for threshing/harvesting soybeans and rice from standing, uncut plants. It used impact energy provided by nylon cords, fixed in a spiral path on opposite rotating shafts, striking the soybeans and the rice seeds from both sides of the plant row in upward direction. The device threshed 95.4% of the soybeans at average ground speed of 6.6km/h, being statiscally lower than 99% threshed at 3km/h. On the other hand, 25.8% of the material other than grain (MOG), removed at 6.6km/h, also was significantly less than the 32.1% of MOG remove at 3km/h. The 76.3% seed vigor value obtained at 6.6km/h was not significantly different from the 78.5% vigor of the hand threshed, but was significantly higher than the 67.1%, and 63.5% seed vigor values obtained when threshed by the device at 3km/h, and by a conventional combine, respectively. Tetrazolium and hypochlorite tests indicated that the numbers of mechanically damaged seeds caused by hand threshing and by the device working at the observed ground speeds, were not significantly different. However, they were statistically lower than th... Mostrar Tudo |
|
Palavras-Chave: |
Brasil; Harvest; Soybean; Threshers. |
|
Thesagro: |
Colheita; Colheitadeira; Debulhadeira; Maquina Agrícola; Soja. |
|
Thesaurus Nal: |
Brazil; harvesters; machinery industry. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02780naa a2200301 a 4500
001 1461726
005 2004-10-15
008 1999 bl uuuu u00u1 u #d
100 1 $aMESQUITA, C. M.
245 $aNew threshing/harvesting device for soybeans and rice.
260 $c1999
300 $ap.576
520 $aJoint research conducted by the National Soybean Research Center of Embrapa, Brazil, and the department of Biological Systems Engineering of University of Nebraska, Lincoln, was aimed at the design and development of new thresher/harvester concept for soybeans and other grain crops. The research, wich also was supported by ROTA industry of farm Machinery, from Brazil, resulted in an experimental prototype for threshing/harvesting soybeans and rice from standing, uncut plants. It used impact energy provided by nylon cords, fixed in a spiral path on opposite rotating shafts, striking the soybeans and the rice seeds from both sides of the plant row in upward direction. The device threshed 95.4% of the soybeans at average ground speed of 6.6km/h, being statiscally lower than 99% threshed at 3km/h. On the other hand, 25.8% of the material other than grain (MOG), removed at 6.6km/h, also was significantly less than the 32.1% of MOG remove at 3km/h. The 76.3% seed vigor value obtained at 6.6km/h was not significantly different from the 78.5% vigor of the hand threshed, but was significantly higher than the 67.1%, and 63.5% seed vigor values obtained when threshed by the device at 3km/h, and by a conventional combine, respectively. Tetrazolium and hypochlorite tests indicated that the numbers of mechanically damaged seeds caused by hand threshing and by the device working at the observed ground speeds, were not significantly different. However, they were statistically lower than the mechanically damaged and broken seeds resulting from conventional combining. The estimated average energy/ha required by the threshing device was approximately 4 MJ/ha, or about one-eight of that required by the tangentially fed threshing cylinder and concave of conventional combines. Preliminary tests with dryland rice showed 99.1% threshing efficiency and 8.6% MOG removed at a ground speed of 3km/h.
650 $aBrazil
650 $aharvesters
650 $amachinery industry
650 $aColheita
650 $aColheitadeira
650 $aDebulhadeira
650 $aMaquina Agrícola
650 $aSoja
653 $aBrasil
653 $aHarvest
653 $aSoybean
653 $aThreshers
700 1 $aHANNA, M. A.
700 1 $aCOSTA, N. P.
773 $tIn: WORLD SOYBEAN RESEARCH CONFERENCE, 6., 1999, Chicago. Proceedings: invited and contributed papers and posters. Chicago: University of Illinois / Soybean Research & Development Council, 1999.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
03/03/2011 |
|
Data da última atualização: |
08/12/2011 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
VIEIRA, S. S.; BUENO, A. F.; BOFF, M. I. C.; BUENO, R. C. O. F.; HOFFMAN-CAMPO, C. B. |
|
Afiliação: |
S. S. VIEIRA, UDESC/CAV; ADENEY DE FREITAS BUENO, CNPSO; M. I. C. BOFF, UDESC/CAV; REGIANE C. O. F. BUENO, FESURV; CLARA BEATRIZ HOFFMANN CAMPO, CNPSO. |
|
Título: |
Resistance of soybean genotypes to Bemisia tabaci (Genn.) biotype B (Hemiptera: Aleyrodidae). |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
Neotropical Entomology, Londrina, v. 40, n. 1, p. 117-122, Jan./Feb. 2011. |
|
DOI: |
10.1590/S1519-566X2011000100018 |
|
Idioma: |
Inglês |
|
Conteúdo: |
The silverleaf whitefly Bemisia tabaci (Genn.) biotype B has become a serious problem for soybean cultivation because it can significantly reduce soybean productivity. The use of soybean cultivars resistant to whitefly attack is an important strategy in an integrated pest management (IPM) program. This study evaluated the preference for oviposition and colonization by B. tabaci biotype B on different soybean genotypes. In the free-choice test, the genotypes studied were ?IAC 17? and ?IAC 19? as the standards for resistance and ?IAC Holambra Stwart? as the standard for susceptibility, as well as BABR01-0492, BABR01-0173, BABR01-1259, BABR01-1576, BABR99-4021HC, BABR99-4021HP, ?Barreiras?, ?Conquista?, ?Corisco?, ?BRS Gralha?, PI274454, PI227687, and PI171451. In the no-choice test, the four best genotypes selected in the free-choice test, in addition to the susceptible and resistant standards were evaluated. Our data indicated ?Barreiras? as the most resistant genotype against B. tabaci biotype B. ?BRS Gralha?, which was the least attractive to whitefly adults in the free-choice test, did not show resistance to insect attack when they were confined in cages in the no-choice test. Despite the high number of eggs observed, BABR01-1576 and BABR99-4021HC showed a reduced number of nymphs, indicating antibiosis. The genotypes with a high level of resistance can be used as a tool against B. tabaci in IPM or as a source of resistance in plantbreeding programs. |
|
Thesagro: |
Praga de planta; Soja. |
|
Thesaurus NAL: |
Plant pests; Soybeans. |
|
Categoria do assunto: |
O Insetos e Entomologia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/35973/1/31894.pdf
|
|
Marc: |
LEADER 02158naa a2200229 a 4500
001 1879948
005 2011-12-08
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1590/S1519-566X2011000100018$2DOI
100 1 $aVIEIRA, S. S.
245 $aResistance of soybean genotypes to Bemisia tabaci (Genn.) biotype B (Hemiptera$bAleyrodidae).
260 $c2011
520 $aThe silverleaf whitefly Bemisia tabaci (Genn.) biotype B has become a serious problem for soybean cultivation because it can significantly reduce soybean productivity. The use of soybean cultivars resistant to whitefly attack is an important strategy in an integrated pest management (IPM) program. This study evaluated the preference for oviposition and colonization by B. tabaci biotype B on different soybean genotypes. In the free-choice test, the genotypes studied were ?IAC 17? and ?IAC 19? as the standards for resistance and ?IAC Holambra Stwart? as the standard for susceptibility, as well as BABR01-0492, BABR01-0173, BABR01-1259, BABR01-1576, BABR99-4021HC, BABR99-4021HP, ?Barreiras?, ?Conquista?, ?Corisco?, ?BRS Gralha?, PI274454, PI227687, and PI171451. In the no-choice test, the four best genotypes selected in the free-choice test, in addition to the susceptible and resistant standards were evaluated. Our data indicated ?Barreiras? as the most resistant genotype against B. tabaci biotype B. ?BRS Gralha?, which was the least attractive to whitefly adults in the free-choice test, did not show resistance to insect attack when they were confined in cages in the no-choice test. Despite the high number of eggs observed, BABR01-1576 and BABR99-4021HC showed a reduced number of nymphs, indicating antibiosis. The genotypes with a high level of resistance can be used as a tool against B. tabaci in IPM or as a source of resistance in plantbreeding programs.
650 $aPlant pests
650 $aSoybeans
650 $aPraga de planta
650 $aSoja
700 1 $aBUENO, A. F.
700 1 $aBOFF, M. I. C.
700 1 $aBUENO, R. C. O. F.
700 1 $aHOFFMAN-CAMPO, C. B.
773 $tNeotropical Entomology, Londrina$gv. 40, n. 1, p. 117-122, Jan./Feb. 2011.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
