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ALBASUL – White Oat
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A20
Claudir Lorencetti, Fernando Irajá Félix de Carvalho, Antonio Costa de Oliveira, Volmir Sergio Marchioro, Giovani Benin, Irineu Hartwig, D. Schmidt, I. Valério
{"title":"ALBASUL – White Oat","authors":"Claudir Lorencetti, Fernando Irajá Félix de Carvalho, Antonio Costa de Oliveira, Volmir Sergio Marchioro, Giovani Benin, Irineu Hartwig, D. Schmidt, I. Valério","doi":"10.12702/1984-7033.V04N01A20","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A20","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":"123-124"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87018757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Mixed inheritance model for resistance to anthracnose leaf blight in maize 玉米抗炭疽病叶枯病混合遗传模型
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A19
V. Rezende, R. Vencovsky, F. Enrique, Ninamango Cárdenas, H. P. D. Silva, E. Bearzoti, Luís Eduardo, Aranha Camargo
{"title":"Mixed inheritance model for resistance to anthracnose leaf blight in maize","authors":"V. Rezende, R. Vencovsky, F. Enrique, Ninamango Cárdenas, H. P. D. Silva, E. Bearzoti, Luís Eduardo, Aranha Camargo","doi":"10.12702/1984-7033.V04N01A19","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A19","url":null,"abstract":"A separation of the effects of major genes from effects of polygenes is important to understand genetic inheritance of quantitative traits and predict the segregation of a crossing. The inheritance mode of resistance to anthracnose leaf bligh t (ALB) caused by C. graminicola was evaluated by a mixed model. P 1, P2, F1, F2, BC1, and BC2 generations derived from four crossings between tropical maize inbred lines were used. Maximum likelihood was used to choose the best fitting inheritance model and to estimate genetic parameters. The mixed model indicated that the resistance to ALB was controlled by a major gene in all crosses and trials, and by polygenes in at least one trial. Additive and dominance effects were important for both major gene and polygenes. Both effects of the major genes were negative, indicating their contribution to disease resistance, while both effects of the polygenes were positive or negative, reflecting differences in the genetic background among inbred li nes.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"16 1","pages":"115-122"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90460777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Estimates of genetic parameters in a maize composite and potential for recurrent selection 玉米组合物遗传参数的估计和循环选择的潜力
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A13
Mara Elisa, Ayres Guidetti, Zagatto Paterniani, E. Sawazaki, P. B. Gallo, R. Lüders, Ricardo Machado da Silva
{"title":"Estimates of genetic parameters in a maize composite and potential for recurrent selection","authors":"Mara Elisa, Ayres Guidetti, Zagatto Paterniani, E. Sawazaki, P. B. Gallo, R. Lüders, Ricardo Machado da Silva","doi":"10.12702/1984-7033.V04N01A13","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A13","url":null,"abstract":"The genetic variability in the maize composite I - Mo, from the improvement program of the Instituto Agronomico de Campinas (IAC), was evaluated. Eight trials of half-sib families with 25 families each, the composite, and a commercial control AL 30 were conducted at the IAC. Individual and combined variance analyses of trials were performed and genetic variance components estimated for ear yield (EY), plant height (PH), and ear height (EH). A high additive variance value was obtained for EY, in contrast to values found in literature, indicating that composites have large variability and are promising for recurrent selection programs. The VC G/VCE index of 0.7 for EY indicated suitability for selection. Assuming a 20% selection of best families, an expected selection gain of 7.9% was estimated. Composite I - Mo has great genetic variability and a remarkable potential for breeding via recurrent selection, promising considerable selection gains in yield.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"387 1","pages":"81-85"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79538836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Gherkin elite line selection 小黄瓜精英选系
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A10
V. A. Modolo, C. D. Costa
{"title":"Gherkin elite line selection","authors":"V. A. Modolo, C. D. Costa","doi":"10.12702/1984-7033.V04N01A10","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A10","url":null,"abstract":"Gherkin lines were obtained by mass selection cycles in alteration with inbreeding cycles in a F population evaluated by Koch and Costa (1991). The purpose of the present study was to identify and select elite lines with plant uniform ity and desirable fruit characteristics. Seedlings of 71 lines were obtained in a greenhouse and transplanted to a bed covered wit h black polypropylene felt. The plants were grown prostate along the ground, without pruning, in a randomized complete block design, with three replicates and five plants per plot. Three criteria were trendsetters for line selection: lack of dormancy, plant and fruit uniformity, and yield components performance. Based on these parameters, the F 6M5S1 gherkin lines 1, 2, 3, 4, 5, 6, 8, 15, 20, 55, 60, and 63 were selected. These elite gherkin lines were called Paulista Gherkin, due to their contrastin g characteristics in relation to the common type.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"51 1","pages":"63-67"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88861005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 12
Characterization of differential coffee tree hosts for Hemileia vastatrix Berk. et Br. with RAPD markers 不同咖啡树寄主的特性研究。Br。带RAPD标记
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A11
Terezinha Aparecida Teixeira-Cabral, N. S. Sakiyama, L. Zambolim, A. A. Pereira, E. G. Barros, Dalza Gomes da Silva
{"title":"Characterization of differential coffee tree hosts for Hemileia vastatrix Berk. et Br. with RAPD markers","authors":"Terezinha Aparecida Teixeira-Cabral, N. S. Sakiyama, L. Zambolim, A. A. Pereira, E. G. Barros, Dalza Gomes da Silva","doi":"10.12702/1984-7033.V04N01A11","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A11","url":null,"abstract":"Eighteen clones of differential coffee tree hosts for Hemileia vastatrix Berk. et Br. were characterized with RAPD markers. The genetic distances were estimated and the genealogical origin of the clones compared to data of marker- based clusters. Thirty-five primers identified 158 polymorphic loci of RAPD markers. The cluster based on the matrix of genetic dissimilarity values was compatible with information on the genealogical origin cited in literature. Specific markers for a number of clones were identified, and a combination of 12 RAPD markers allowed the characterization of the studied clones.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":"68-73"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75515553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Genetic diversity of cacao accessions selected for resistance to witches' broom based on RAPD markers 基于RAPD标记的可可抗病材料遗传多样性分析
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A03
F. Faleiro, U. Lopes, M. M. Yamada, G.R.P. Melo, W. Monteiro, J. L. Pires, J. B. Rocha, Rita C.S Bahia, L. M. C. Gomes, I. S. Araújo, A. S. G. Faleiro
{"title":"Genetic diversity of cacao accessions selected for resistance to witches' broom based on RAPD markers","authors":"F. Faleiro, U. Lopes, M. M. Yamada, G.R.P. Melo, W. Monteiro, J. L. Pires, J. B. Rocha, Rita C.S Bahia, L. M. C. Gomes, I. S. Araújo, A. S. G. Faleiro","doi":"10.12702/1984-7033.V04N01A03","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A03","url":null,"abstract":"To increase the genetic diversity sources of resistance to witches' broom disease, 59 cacao trees of commercial plantations of the State of Bahia, Brazil, were selected and cloned. The diversity of these clones was evaluated with RAPD markers. Their pedigree was investigated by comparison to traditional resistance sources used as parents for most hybrid mixtures cultivated in the State. One hundred and six RAPD bands were obtained, 85.8% of which were polymorphic. Genetic distances among the clones varied from 0.04 to 0.41. The MDS plot showed large genetic variability among clones. Analyses based on rare markers inherent to Scavina-6 and Scavina-12 clones, which represent important resistance sources, showed a close relationship of these sources to most accessions. However, some accessions did not present any of the rare Scavina markers, suggesting potentially different alleles, which could contribute to broaden the gene pool of breeding programs for resistance to witches' broom.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"27 1","pages":"12-17"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76797717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Genetic analysis of F6 and F6:7 soybean generations 大豆F6和F6:7代的遗传分析
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A06
R. L. F. Gomes, N. Vello, J. A. A. Filho
{"title":"Genetic analysis of F6 and F6:7 soybean generations","authors":"R. L. F. Gomes, N. Vello, J. A. A. Filho","doi":"10.12702/1984-7033.V04N01A06","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A06","url":null,"abstract":"For estimating genetic parameters and selecting superior lines for grain yield, forty-five soybean (Glycine max L.) crosses in F6 and F6:7 generations were evaluated. The soybean lines FT-Cristalina, EMGOPA-301, IAC-4, IAC-5, IAC-6, IAC-8, IAC-9, IAC-11, Santa Rosa, and OCEPAR-9-SS-1 were used in the crosses. The F6 progenies of 44 crosses (except EMGOPA-301 x IAC-5) and the ten parents were evaluated as well as the F6:7 progenies from all 45 crosses and the ten parents in the next crop. The number of days to maturity (NDM), plant height at maturity (PHM), agronomic value (AV) and grain yield (GY) were evaluated for both generations. There was some difficulty to select early top yield lines due to the high positive genotypic correlation between GY and NDM. The heritability estimates were high (> 0.70) and moderate (0.40 – 0.70) for NDM and PHM, respectively. The presence of transgressive segregates indicated the possibility of selecting lines with high grain yield.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"47 1","pages":"35-42"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80037694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Proposal of methodologies for environment stratification and analysis of genotype adaptability 环境分层和基因型适应性分析方法的提出
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A02
D. M. Murakami, C. Cruz
{"title":"Proposal of methodologies for environment stratification and analysis of genotype adaptability","authors":"D. M. Murakami, C. Cruz","doi":"10.12702/1984-7033.V04N01A02","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A02","url":null,"abstract":"A cultivar which performs well in a given environment will not necessarily perform as well in others. Thus studies on environmental stratification must be carried out to provide indications for cultivars. A procedure commonly used is the stratification of environments through the analysis of genotype-environment interactions, which must be minimal or statistically not significant. We propose an alternative procedure based on factor analysis. Moreover, we propose a methodolo gy for the analysis of genotype adaptability through graphic analysis, generated by plotting scores from factor analysis. These new methodologies were used to assess grain yield of maize hybrids evaluated in diferent environments. Results provided the establishment of environmental subgroups with high correlations within the subgroups, and low or no correlations among them. The scores provided plot that helped understand the adaptability of the hybrids. The methodologies proposed for environment stratification and adaptability analysis were effective and of easy interpretation.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":"7-11"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90402200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 42
Genetic parameters in relation to the physiological quality of common bean seeds 与普通豆种子生理品质有关的遗传参数
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A07
L. V. Souza, M. Antonio, P. Ramalho, É. V. Pinho
{"title":"Genetic parameters in relation to the physiological quality of common bean seeds","authors":"L. V. Souza, M. Antonio, P. Ramalho, É. V. Pinho","doi":"10.12702/1984-7033.V04N01A07","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A07","url":null,"abstract":"Bean breeders evaluate the water uptake (WU) capacity of lines with the aim of identifying those with the shortest cooking time. There is no information on the most likely effect of the selection for WU in the expression of traits related to germination. To obtain information in this respect, F 2:4 families of crosses between the lines CI-107 with Carioca 80 and Amarelinho were evaluated in relation to WU, germination speed index (GSI), and emergence speed index (ESI). The genetic variance was greatest in cross CI-107 x Amarelinho. The estimate of heritability for ESI was similar in both crosses and inferior to the one obtained for WU. The correlated responses in ESI to the selection practiced in WU were particularly expressive in seeds stored for 6 months. Accordingly, a selection aiming at the identification of lines with shorter cooking t ime","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"15 1","pages":"43-47"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81624702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Estimates of genetic parameters and expected genetic gains with selection in robust coffee 鲁棒咖啡中遗传参数的估计和预期遗传增益的选择
IF 1.5 4区 农林科学
Crop Breeding and Applied Biotechnology Pub Date : 2004-03-30 DOI: 10.12702/1984-7033.V04N01A14
J. C. Mistro, L. C. Fazuoli, P. Gonçalves, O. G. Filho
{"title":"Estimates of genetic parameters and expected genetic gains with selection in robust coffee","authors":"J. C. Mistro, L. C. Fazuoli, P. Gonçalves, O. G. Filho","doi":"10.12702/1984-7033.V04N01A14","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N01A14","url":null,"abstract":"The present paper aimed to study the genetic variation of 15 half-sib progenies of robust coffea ( Coffea canephora Pierre). The trial was conducted at the Instituto Agronomico de Campinas (IAC/APTA) in a randomized complete block design with seven replications and one tree-plot. Annual and joint analyses of variance were obtained to estimate the genetic paramet ers for yield, in order to quantify the genetic gain from selection in eight production years. The genotypic variation coefficient s indicated expressive genetic variability for improvement of the yield. On account of the high variation in annual production, it is recommended that selection should be based on the general mean of the years. In low yield years, larger heritability values, coefficients of genetic variation, index of genotypic determination, and genetic gains were estimated.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"40 1","pages":"86-91"},"PeriodicalIF":1.5,"publicationDate":"2004-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85821440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 26
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