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Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 28
Primeira ... 12 ... Última
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Avaliação de cultivares de melancia nas condições semiáridas do Nordeste brasileiro. Repositório Alice
SANTANA, M. da S.; YURI, J. E.; RESENDE, G. M. de; COSTA, N. D.; SALVIANO, A. M..
A escolha criteriosa da cultivar com a defi nição dos melhores materiais que se adaptam às condições locais de cultivo é decisiva para o sucesso da exploração da melancia (Citrullus lanatus (Thunb.) Matsun. & Nakai.). O objetivo deste trabalho foi avaliar a produtividade de cultivares de melancia nas condições do Submédio do Vale do São Francisco no período de agosto a outubro de 2017, em Petrolina, PE. O experimento foi conduzido em delineamento experimental de blocos ao acaso com 11 cultivares e três repetições. As maiores produtividades comerciais de frutos foram apresentadas pelas cultivares Opara F1 (51,6 t.ha-1), Ranger (53,8 t.ha-1), Combat (55,2 t.ha-1), Explorer (55,6 t.ha-1), Conquista (56,0 t.ha-1), Frevo (56,7 t.ha-1) e Red Heaven (57,2...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Competição; Vale do São Francisco; Melancia; Produtividade; Sistema de Cultivo; Watermelons; Varieties; Varietal resistance.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1103748
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Biological characteristics of Heliothis virescens fed with Bt-soybean MON 87701 × MON 89788 and its conventional isoline Anais da ABC (AABC)
BORTOLOTTO,ORCIAL C.; BUENO,ADENEY F.; BRAGA,KARLA; BARBOSA,GUSTAVO C.; SANZOVO,ALISSON.
This study aimed to evaluate the larval biology of Heliothis virescens in soybean MON 87701 x MON 89788 and its isogenic non-Bt. In general, the impact of soybean MON 87701 x MON 89788 on H. virescens was evidenced in all bioassays, 100% larval mortality, independent of the structure (leaf or pod) consumed by the pest. The small larvae (1st and 3rdinstar) demonstrated that they were unable to damage fresh pods of soybean, regardless of whether Bt or not Bt. The large larvae (5th instar) fed on soybean MON 87701 x MON 89788 soybeans consumed three times less compared to larvae fed on non-Bt soybeans, and resulted in reduced longevity and larval survival. When soybean plants were infested with 5th instar larvae, H. virescens caused injuries in the steams of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Varietal resistance; Tobacco budworm; Soybean pests; Lepidoptera pests; Heliothinae.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000200973
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Choosing a suitable sorghum hybrid helps control the maize weevil in the tropic region? Repositório Alice
PIMENTEL, M. A. G.; MENDES, S. M.; MENEZES, C. B. de; FERNANDES, D. K. S.; OLIVEIRA, I. R. de; COTA, R. A..
bitstream/item/203797/1/Choosing-suitable.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Praga de Produto Armazenado; Gorgulho do Milho; Sorgo; Hibrido; Clima Tropical; Sitophilus Zeamais; Varietal resistance; Grain storage facilities; Plant pests.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113517
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Comparative effects of root-knot nematode Meloidogyne incognita on yield performance of seven Asian rice and 13 Oryza sativa/O. glaberrima interspecific progenies International Rice Research Institute
Afolami, S. O.; Orisajo, S. B.; Fademi, O. A..
p.21-24
Palavras-chave: Nematoda; Meloidogyne incognita; Varietal resistance; Interspecific hybridization; Progeny; Yields.
Ano: 2003 URL: http://hdl.handle.net/123456789/1316
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Differential interactions between Curtobacterium flaccumfaciens pv. flaccumfaciens and common bean. Repositório Alice
VALDO, S. C. D.; WENDLAND, A.; ARAÚJO, L. G.; MELO, L. C.; PEREIRA, H. S.; MELO, P. G.; FARIA, L. C..
Bacterial wilt of common bean caused by Curtobacterium flaccumfaciens pv. flaccumfaciens is an important disease in terms of economic importance. It reduces grain yield by colonizing xylem vessels, subsequently impeding the translocation of water and nutrients to the superior plant parts. The existence of physiological races in C. flaccumfaciens pv. flaccumfaciens has not so far been reported. The objective of the present investigation was to identify physiological races, evaluate differential interaction, and select resistant genotypes of common bean. Initially, 30 genotypes of common bean were inoculated with eight isolates exhibiting different levels of aggressiveness, under controlled greenhouse conditions. Disease was assessed 15 days after...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Partial diallels; Differentiating series; Feijão; Phaseolus vulgaris; Melhoramento genético vegetal; Resistência genética; Plant breeding; Aggression; Genetic resistance; Varietal resistance; Pathotypes.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1057294
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Drought-induced shifting of stem borer species in shallow deepwater rice International Rice Research Institute
Singh, R. A.; Singh, R. B.; Singh, G..
p.24
Palavras-chave: Deepwater rice; Drought; Infestation; Insect pests; Pest resistance; Population dynamics; Varietal resistance; Sesamia inferens; Uttar Pradesh; India.
Ano: 2005 URL: http://hdl.handle.net/123456789/1151
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Effect of tungro-associated viruses on symptoms and yield in rice and development of a scoring system International Rice Research Institute
Hasanuddin, Andi.
151 l. : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Plant viruses; Rice tungro bacilliform virus; Rice tungro spherical virus; Disease resistance; Varietal resistance; Measurement; Yields; Tungro disease.
Ano: 1987 URL: http://hdl.handle.net/123456789/1319
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Factors influencing yellow stemborer damage to transplanted rice International Rice Research Institute
Pena, Nora B..
98 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Planting; Boring insects; Scirpophaga incertulas; Plant damage; Climate; Plant cultural practices; Maturity stage; Varietal resistance.
Ano: 1987 URL: http://hdl.handle.net/123456789/1290
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Genetic analysis of salinity tolerance in rice (Oryza sativa L) International Rice Research Institute
Ray, Pronab Kumar Saha.
xi, 161 p. : ill. Thesis (Ph.D.) -- Bangladesh Agricultural University
Tipo: Thesis Palavras-chave: Rice; Genetic techniques and protocols; General combining ability; Salt stress; Salt tolerance; Varietal resistance.
Ano: 2002 URL: http://hdl.handle.net/123456789/419
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Herança da resistência de variedades comerciais brasileiras de soja à podridão radicular de fitóftora. Repositório Alice
BERGAMO, M. C. B.; ARIAS, C. A. A.; SOARES, R. M..
O objetivo do estudo foi avaliar a herança da resistência à podridão radicular de fitóftora, causada por causada por Phytophthora sojae (Kaufm. & Gerd.), presentes em variedades comerciais resistentes BRS 260, BRS 262, BRS 246RR e BRSMG 752S. Até hoje 14 genes, denominados Rps, foram descritos por conferirem resistência à PRF, os quais tem sido amplamente utilizados nos programas de melhoramento para proteção das cultivares de soja. O material experimental foi desenvolvido a partir do cruzamento das quatro cultivares entre si, totalizando seis cruzamentos. A população F2, os parentais utilizados nos cruzamentos e a cultivar suscetível BRS 268, foram inoculados com o patógeno utilizando a metodologia de Keeling (1982), adaptada por Yorinori (1996). O...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Soja; Variedade resistente; Soybeans; Varietal resistance; Disease resistance.
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/handle/doc/918282
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Infestation of cassava genotypes by Neosilba perezi (Romero & Ruppell) (Diptera: Lonchaeidae) Neotropical Entomology
Gisloti,L; Prado,AP do.
The objectives of this work were to assess the infestation of ten genotypes of cassava by the shoot fly Neosilba perezi (Romero & Ruppell) and to investigate effects of plant age, temperature or precipitation on cassava plants infestation by the shoot fly. Thirty-two individuals of each cassava genotype were planted and analyzed every two weeks in order to calculate the percentage of plants infested by shoot fly larvae at each sampling event and per genotype. Infestation by the fly was different across the genotypes. Genotype IAC Caapora 105-66 and genotype IAC Cascuda were resistant to shoot fly infestation, whereas the genotype IAC 15 was the most susceptible to this insect. Plant age may have an influence on infestation by shoot flies. Advanced...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Manihot esculenta; Shoot fly; Cassava fly; Varietal resistance.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2011000500014
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Infestation of the banana root borer among different banana plant genotypes Ciência Rural
Oliveira,Fernando Teixeira de; Neves,Pedro Manuel Oliveira Janeiro; Bortolotto,Orcial Ceolin.
ABSTRACT: In this study, we aimed to investigate Cosmopolites sordidus (Coleoptera: Dryophthoridae ) infestation among different banana genotypes in a commercial banana orchard over the course of 30 months. Banana root borer infestation was compared in 20 banana genotypes, including five varieties and 15 hybrids. Overall, we observed that 94.17% of pest infestation cases occurred in the cortex region, and only 5.83% occurred in the central cylinder. Genotypes least sensitive to infestation were the Prata Anã (AAB) and Pacovan (AAB) varieties, where no damage was recorded. Among the hybrid genotypes, PV 9401 and BRS Fhia 18 showed intermediate levels of sensitivity, while BRS Tropical hybrids (AAAB), PA 9401 (AAAB), BRS Vitoria (AAAB), YB 4203 (AAAB), and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Musa spp.; Banana pests; Varietal resistance; Banana hybrids.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000100151
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Influence of water regime on rice - Meloidogyne graminicola relationships and its implications in testing for resistance or tolerance of rice cultivars International Rice Research Institute
Tandingan, Irma C..
146 leaves : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Soil water regimes; Nematoda; Meloidogyne graminicola; Pest resistance; Varietal resistance; Variety trials; Varieties; IR36 (rice variety).
Ano: 1993 URL: http://hdl.handle.net/123456789/715
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Inheritance of partial resistance to leaf blast (P. Oryzae) in some rice varieties International Rice Research Institute
Wang, Ziming.
80 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Blast disease; Inheritance (genetics); Disease resistance; Varietal resistance; Varieties; Magnaporthe grisea.
Ano: 1987 URL: http://hdl.handle.net/123456789/1259
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Inheritance of resistance to green leafhopper, Nephotettix virescens (Distant) in some rice varieties International Rice Research Institute
Ghani, M. U..
75 l. : ill. Thesis (M.S.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Inheritance (genetics); Insect pests; Nephotettix virescens; Pest resistance; Varietal resistance; Varieties.
Ano: 1987 URL: http://hdl.handle.net/123456789/1324
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Larval development of Spodoptera eridania and Spodoptera frugiperda fed on fresh ear of field corn expressing the Bt proteins (Cry1F and Cry1F + Cry1A.105 + Cry2Ab2) Ciência Rural
Bortolotto,Orcial Ceolin; Bueno,Adeney de Freitas; Queiroz,Ana Paula de; Silva,Gabriela Vieira.
ABSTRACT: The objective of this study was to evaluate extent of larval period, larval survival (%), food consumption, and pupal biomass of Spodoptera eridania and Spodoptera frugiperda (Lepidoptera: Noctuidae ) fed on fresh ears of field corn expressing Bt proteins (Cry1F and Cry1F+Cry1A.105+Cry2Ab2). Larvae of Spodoptera spp. survived less than two days when they consumed Bt corncobs and showed 100% mortality. Spodoptera eridania reared on non-Bt corn cobs showed higher larval development (21.6 days) than S. frugiperda (18.4 days) and lower viability (56.4% and 80.2% for S. eridania and S. frugiperda , respectively). A higher amount of corn grains was consumed by S. eridania (5.4g) than by S. frugiperda (3.9g). In summary, this study demonstrated that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Biology; Integrated pest management; Fall armyworm; Southern armyworm; Varietal resistance.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001101898
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Mechanisms of varietal resistance in rice to Sogatella furcifera (Horvath) and inhibition of its feeding by carbofuran International Rice Research Institute
Liu, Guangjie.
191 l. : ill. Thesis (Ph.D.) -- University of Newcastle upon Tyne
Tipo: Thesis Palavras-chave: Rice; Insect pests; Sogatella furcifera; Pest resistance; Varietal resistance; Chemical control; Carbofuran.
Ano: 1990 URL: http://hdl.handle.net/123456789/1023
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Molecular and pathogenic variability of Drechslera isolates from oats Trop. Plant Pathol.
MEHTA,Y. R..
Severe epidemics of leaf blotch and black leaf spot of oat (Avena sativa) caused by Drechslera avenae and Drechslera sp., respectively, are frequently observed in the State of Paraná, Brazil. Although some morphological differences between the isolates causing two different symptoms were noticed, the genetic relationship between them was not clear. Twenty-four isolates of D. avenae and Drechslera sp, collected between 1996-98, were assessed for the genetic variability by molecular and pathogenic analyses. The amplification products using primer pair ITS4/ITS5 showed a fragment length of approximately 600 bp for all the isolates except for one black spot isolate, where the fragment length was approximately 550 bp. Restriction enzymes Hinf I and Taq I, that...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Pyrenophora avenae; Avena sativa; Molecular characterization; Varietal resistance.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582001000300002
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Paraquat resistance of sumatran fleabane (Conyza sumatrensis). Repositório Alice
ZOBIOLE, L. H. S.; PEREIRA, V. G. C.; ALBRECHT, A. J. P.; RUBIN, R. S.; ADEGAS, F. S.; ALBRECHT, L. P..
bitstream/item/199691/1/aZobiole.pdf
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Resistência a Pesticida; Variedade Resistente; Erva Daninha; Conyza; Glyphosate; Herbicide resistance; Varietal resistance; Weeds.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110719
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Physiochemical stresses and varietal resistance in rice : effects on whitebacked planthopper Sogatella furcifera (Horvath) International Rice Research Institute
Salim, Muhammad.
154 l. : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Rice; Plant stress; Salinity; Temperature; Plant nutrition; Varietal resistance; Sogatella furcifera; Insect pests.
Ano: 1988 URL: http://hdl.handle.net/123456789/1193
Registros recuperados: 28
Primeira ... 12 ... Última
 

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