Pub Date : 2008-03-30DOI: 10.12702/1984-7033.V08N01A04
C. Ferreira, E. Alves, K. N. Pestana, D. Junghans, A. K. Kobayashi, V. J. Santos, R. P. Silva, Paulino Silva, E. Soares, W. Fukuda
Casssava (Manihot esculenta Crantz) is one of the main food and income sources of about 500 million people in the tropics. The crop is mainly cultivated by small farmers in tropical Africa, Asia and Latin America. Embrapa Mandioca e Fruticultura Tropical, based in Cruz das Almas, Bahia, maintains one of the largest cassava genebanks of Latin America. Among the accessions it contains, those with yellow-orange root color are particularly interesting. The objective of this study was to characterize 30 cassava accessions with yellow-orange root color by RAPD markers. The genetic distances of the 47 analyzed primers varied from 9.0 to 31.7 %, demonstrating the existing genetic variability to be exploited for the development of cassava varieties with higher beta-carotene contents. Molecular characterization of Cassava (Manihot esculenta Crantz) with yellow-orange roots for beta-carotene improvement Claudia Fortes Ferreira1*, Elaine Alves2, Katia Nogueira Pestana3, Davi Theodoro Junghans1, Adilson Kenji Kobayashi4, Vania de Jesus Santos3, Raimundo Pereira Silva1, Paulo Henrique Silva3, Ediclan Soares3, and Wania Fukuda1 1 Embrapa Mandioca e Fruticultura Tropical, s/n, C.P. 007, 44.380-000, Cruz das Almas, BA, Brasil, *E-mail: claudiaf@cnpmf.embrapa.br 2 Universidade Federal da Bahia (UFB), Rua Basilio da Gama, s/n, Canela, 40.110-907, Salvador, BA, Brasil 3 Universidade Federal do Reconcavo Baiano (UFRB), Campus Universitario da UFRB, 44.380-000, Cruz das Almas, BA, Brasil 4 Embrapa Meio-Norte, Av. Duque de Caxias, 5650, Buenos Aires, 64.006-220, Teresina, PI, Brasil INTRODUCTION Manihot esculenta Crantz is a species native to tropical America (Olsen and Schaal 2001), initially cultivated by native Latin Americans and later introduced into the African and Asian continents. The worldwide cassava production, on an area of 17.870.626 hectares is approximately 195.574.112 tons (FAO 2004). It is considered one of the most important sources of calories and is an inexpensive staple food in Latin America (Montero 2003), mainly in the northeastern region of Brazil (Mendes et al. 2006). The genetic diversity of this species is wide (Nassar 2006), concentrated mainly in Latin America and the Caribbean. Approximately 8500 cassava accessions are maintained worldwide in different collections, of which 7500 in South America (Costa and Morales 1994). Received 24 January 2007 Accepted 07 November 2007 In Brazil, 4132 accessions have been collected and are maintained in genebanks across the country (Fukuda 2000). Carotenes (-carotene, b-carotene, lycopene) represent the most multifaceted group of pigments in nature, with colors varying from yellow to red, found in photosynthetic and non-photosynthetic tissues, such as roots, seeds and fruits. Once ingested, b-carotene is transformed, in the liver, into Vitamin A. Vitamin A is a micro-nutrient with functions related to vision, cell differentiation, growth development, reproduction and the immune system. Vitamin A deficien
木薯(Manihot esculenta Crantz)是热带地区约5亿人的主要食物和收入来源之一。这种作物主要由热带非洲、亚洲和拉丁美洲的小农种植。位于巴伊亚州Cruz das Almas的Embrapa Mandioca e fruticulture Tropical拥有拉丁美洲最大的木薯基因库之一。其中根色为黄橙色的品种尤为有趣。本研究利用RAPD标记对30份根色为黄橙色的木薯材料进行了鉴定。47个引物的遗传距离在9.0% ~ 31.7%之间变化，表明存在遗传变异，可用于开发高β -胡萝卜素含量木薯品种。Claudia Fortes Ferreira1*， Elaine Alves2, Katia Nogueira pestan3, Davi Theodoro Junghans1, Adilson Kenji kobayash4, Vania de Jesus Santos3, Raimundo Pereira Silva1, Paulo Henrique Silva3, Ediclan soare3, Wania fuud1 . Embrapa Mandioca e Fruticultura Tropical, s/n, C.P. 007, 4438 -000, Cruz das Almas, BA, Brasil， * e - e:claudiaf@cnpmf.embrapa.br 2巴伊亚联邦大学(UFB)，巴西巴西伽马大道，萨尔瓦多，40.110-907 3巴伊亚联邦大学(UFRB)， UFRB大学，4438 -000,Cruz das Almas, BA，巴西4 Embrapa Meio-Norte, Av. Duque de Caxias, 5650，布宜诺斯艾利斯，64.006-220,Teresina, PI，巴西介绍manhot esculenta Crantz是热带美洲的原生物种(Olsen and Schaal 2001)。最初由拉丁美洲土著种植，后来被引入非洲和亚洲大陆。全球木薯产量约为195.574.112吨，面积为17.870.626公顷(粮农组织2004年)。它被认为是最重要的热量来源之一，在拉丁美洲是一种廉价的主食(Montero 2003)，主要在巴西东北部地区(Mendes et al. 2006)。该物种的遗传多样性很广(Nassar 2006)，主要集中在拉丁美洲和加勒比地区。全世界大约有8500种不同种类的木薯，其中7500种在南美洲(Costa和Morales, 1994年)。在巴西，已经收集了4132份材料，并保存在全国各地的基因库中(Fukuda 2000)。胡萝卜素(-胡萝卜素、b-胡萝卜素、番茄红素)是自然界中最具多样性的色素，其颜色从黄色到红色不等，存在于光合作用和非光合作用组织中，如根、种子和果实。一旦摄入，b-胡萝卜素在肝脏中转化为维生素A。维生素A是一种微量营养素，具有与视力、细胞分化、生长发育、繁殖和免疫系统有关的功能。维生素A缺乏症(VAD)可引起严重疾病，例如眼综合征、干眼症，并发展为不可逆的失明(Underwood等人，1999年)。虽然缺乏维生素A是可以预防的，但在许多发展中国家，干眼症仍然是一个公共卫生问题(Welch和Graham 2002)。
{"title":"Molecular characterization of Cassava (Manihot esculenta Crantz) with yellow-orange roots for beta-carotene improvement","authors":"C. Ferreira, E. Alves, K. N. Pestana, D. Junghans, A. K. Kobayashi, V. J. Santos, R. P. Silva, Paulino Silva, E. Soares, W. Fukuda","doi":"10.12702/1984-7033.V08N01A04","DOIUrl":"https://doi.org/10.12702/1984-7033.V08N01A04","url":null,"abstract":"Casssava (Manihot esculenta Crantz) is one of the main food and income sources of about 500 million people in the tropics. The crop is mainly cultivated by small farmers in tropical Africa, Asia and Latin America. Embrapa Mandioca e Fruticultura Tropical, based in Cruz das Almas, Bahia, maintains one of the largest cassava genebanks of Latin America. Among the accessions it contains, those with yellow-orange root color are particularly interesting. The objective of this study was to characterize 30 cassava accessions with yellow-orange root color by RAPD markers. The genetic distances of the 47 analyzed primers varied from 9.0 to 31.7 %, demonstrating the existing genetic variability to be exploited for the development of cassava varieties with higher beta-carotene contents. Molecular characterization of Cassava (Manihot esculenta Crantz) with yellow-orange roots for beta-carotene improvement Claudia Fortes Ferreira1*, Elaine Alves2, Katia Nogueira Pestana3, Davi Theodoro Junghans1, Adilson Kenji Kobayashi4, Vania de Jesus Santos3, Raimundo Pereira Silva1, Paulo Henrique Silva3, Ediclan Soares3, and Wania Fukuda1 1 Embrapa Mandioca e Fruticultura Tropical, s/n, C.P. 007, 44.380-000, Cruz das Almas, BA, Brasil, *E-mail: claudiaf@cnpmf.embrapa.br 2 Universidade Federal da Bahia (UFB), Rua Basilio da Gama, s/n, Canela, 40.110-907, Salvador, BA, Brasil 3 Universidade Federal do Reconcavo Baiano (UFRB), Campus Universitario da UFRB, 44.380-000, Cruz das Almas, BA, Brasil 4 Embrapa Meio-Norte, Av. Duque de Caxias, 5650, Buenos Aires, 64.006-220, Teresina, PI, Brasil INTRODUCTION Manihot esculenta Crantz is a species native to tropical America (Olsen and Schaal 2001), initially cultivated by native Latin Americans and later introduced into the African and Asian continents. The worldwide cassava production, on an area of 17.870.626 hectares is approximately 195.574.112 tons (FAO 2004). It is considered one of the most important sources of calories and is an inexpensive staple food in Latin America (Montero 2003), mainly in the northeastern region of Brazil (Mendes et al. 2006). The genetic diversity of this species is wide (Nassar 2006), concentrated mainly in Latin America and the Caribbean. Approximately 8500 cassava accessions are maintained worldwide in different collections, of which 7500 in South America (Costa and Morales 1994). Received 24 January 2007 Accepted 07 November 2007 In Brazil, 4132 accessions have been collected and are maintained in genebanks across the country (Fukuda 2000). Carotenes (-carotene, b-carotene, lycopene) represent the most multifaceted group of pigments in nature, with colors varying from yellow to red, found in photosynthetic and non-photosynthetic tissues, such as roots, seeds and fruits. Once ingested, b-carotene is transformed, in the liver, into Vitamin A. Vitamin A is a micro-nutrient with functions related to vision, cell differentiation, growth development, reproduction and the immune system. Vitamin A deficien","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"103 1","pages":"23-29"},"PeriodicalIF":1.5,"publicationDate":"2008-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77895503","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}
Pub Date : 2007-09-30DOI: 10.12702/1984-7033.V07N03A12
M.F.P.T.B. Silva, E. Lopes, M. S. Pagliarini, C. A. Scapiml
{"title":"Effects of endogamy on microsporogenesis in popcorn (Zea mays L.)","authors":"M.F.P.T.B. Silva, E. Lopes, M. S. Pagliarini, C. A. Scapiml","doi":"10.12702/1984-7033.V07N03A12","DOIUrl":"https://doi.org/10.12702/1984-7033.V07N03A12","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"26 1","pages":"321-326"},"PeriodicalIF":1.5,"publicationDate":"2007-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79888326","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}
Pub Date : 2005-12-31DOI: 10.12702/1984-7033.V05N04A07
A. Sebbenn, A. C. S. Zanatto, M. L. M. Freitais, A. S. Sato, L. C. Ettori
{"title":"Genetic variation among and within sweet corn populations detected by RAPD and SSR markers","authors":"A. Sebbenn, A. C. S. Zanatto, M. L. M. Freitais, A. S. Sato, L. C. Ettori","doi":"10.12702/1984-7033.V05N04A07","DOIUrl":"https://doi.org/10.12702/1984-7033.V05N04A07","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"149 1","pages":"418-425"},"PeriodicalIF":1.5,"publicationDate":"2005-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73710291","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}
Pub Date : 2005-06-30DOI: 10.12702/1984-7033.V05N02A19
I. Schuster, C. D. Cruz
{"title":"Estatística genômica aplicada a populações derivadas de cruzamentos controlados","authors":"I. Schuster, C. D. Cruz","doi":"10.12702/1984-7033.V05N02A19","DOIUrl":"https://doi.org/10.12702/1984-7033.V05N02A19","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"18 1","pages":"256-256"},"PeriodicalIF":1.5,"publicationDate":"2005-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82073636","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}
Pub Date : 2004-12-31DOI: 10.12702/1984-7033.V04N04A04
R. F. Missio, L. Antônio, Santos Henrique Brant Dias, Luiz Teixeira de Moraes
Pinus caribaea var. bahamensis progenies were selected by mixed models using the estimate of the genetic parameters by REML for the prediction of additive genetic values by BLUP. The experimental design was a 11 x 11 partially balanced square lattice containing 119 progenies and two commercial controls. After 13 years, the diameter at breast height (DBH), height and volume were evaluated. The progenies presented good mean performance (18.83 m, 20.80 cm and 0.462 m 3 tree -1 ), and heritability estimates of 0.12, 0.20 and 0.21 for height, DBH and volume, respectively. The trait with greatest variability was the volume w ith a genetic variation coefficient of 22.60% while the genetic variation for height was lower (3.73%). A genetic gain of 14.5% was obtained for DBH with a selection of 250 trees from 56 progenies, with a mean of 4.46 trees selected per progeny and an effecti ve population size of 72.
利用REML估计的遗传参数，采用混合模型选择巴哈密松子代，用BLUP预测加性遗传值。实验设计是一个11 x 11的部分平衡方形格子，包含119个子代和两个商业对照。13年后，测定乳房高度直径(DBH)、高度和体积。后代平均表现良好(18.83 m, 20.80 cm和0.462 m 3 tree -1)，高，胸径和体积的遗传力分别为0.12,0.20和0.21。变异系数最大的性状是体积w，遗传变异系数为22.60%，变异系数较小的性状是高度w，遗传变异系数为3.73%。从56个子代中选择250棵树，平均每个子代选择4.46棵树，有效群体大小为72棵，获得了14.5%的遗传增益。
{"title":"Selection of Pinus caribaea var. bahamensis progenies based on the predicted genetic value","authors":"R. F. Missio, L. Antônio, Santos Henrique Brant Dias, Luiz Teixeira de Moraes","doi":"10.12702/1984-7033.V04N04A04","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A04","url":null,"abstract":"Pinus caribaea var. bahamensis progenies were selected by mixed models using the estimate of the genetic parameters by REML for the prediction of additive genetic values by BLUP. The experimental design was a 11 x 11 partially balanced square lattice containing 119 progenies and two commercial controls. After 13 years, the diameter at breast height (DBH), height and volume were evaluated. The progenies presented good mean performance (18.83 m, 20.80 cm and 0.462 m 3 tree -1 ), and heritability estimates of 0.12, 0.20 and 0.21 for height, DBH and volume, respectively. The trait with greatest variability was the volume w ith a genetic variation coefficient of 22.60% while the genetic variation for height was lower (3.73%). A genetic gain of 14.5% was obtained for DBH with a selection of 250 trees from 56 progenies, with a mean of 4.46 trees selected per progeny and an effecti ve population size of 72.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"35 1","pages":"399-407"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90927340","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}
Pub Date : 2004-12-31DOI: 10.12702/1984-7033.V04N04A21
P. Griffee, É. Guimarães
{"title":"Genetic improvement of cacao","authors":"P. Griffee, É. Guimarães","doi":"10.12702/1984-7033.V04N04A21","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A21","url":null,"abstract":"","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"14 1","pages":"506-507"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74845066","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}
Pub Date : 2004-12-31DOI: 10.12702/1984-7033.V04N04A20
A. Fonseca, M. A. Ferrão, R. G. Ferrão, A. C. V. Filho, Paulo, Sérgio Volpi, Francisco Zucateli
Conilon Vitória Incaper 8142 is a Coffea canephora var. kouillou clone type cultivar developed by Incaper, composed by clustering 13 superior clones. It presents a mean productivity of 70.4 bags of 60 kg ha, broad environmental adaptation and production stability, drought tolerance, uniformity of fruit maturation, and moderate rust resistance.
{"title":"‘Conilon Vitória - Incaper 8142’: improved Coffea canephora var. kouillou clone cultivar for the state of Espírito Santo","authors":"A. Fonseca, M. A. Ferrão, R. G. Ferrão, A. C. V. Filho, Paulo, Sérgio Volpi, Francisco Zucateli","doi":"10.12702/1984-7033.V04N04A20","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A20","url":null,"abstract":"Conilon Vitória Incaper 8142 is a Coffea canephora var. kouillou clone type cultivar developed by Incaper, composed by clustering 13 superior clones. It presents a mean productivity of 70.4 bags of 60 kg ha, broad environmental adaptation and production stability, drought tolerance, uniformity of fruit maturation, and moderate rust resistance.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"128 1","pages":"503-505"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86391649","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}
Pub Date : 2004-12-31DOI: 10.12702/1984-7033.V04N04A03
M. M. Rocha, N. Vello, Â. C. Almeida, Lopes, M. C. C. Maia
nes (G) using additive main effects and multiplicative interaction analysis (AMMI). Effects of the G, E, and GE interaction were found to be significant and accounted for 51, 12, and 36% of the variation, respectively. The first and only significant interaction princi pal component axis (IPCA1) accounted for 26% of the sum of squares due to original GE interaction. This concentrated the largest proportion of the pattern of GE interaction. Environments associated with Anhembi and Esalq proved more favorable, while Areao contributed negatively to the grain yield. However, Anhembi and Areao were more predictable for the crop years. USP 93-5082 and USP 93-5243 lines combined high adaptability and stability.
{"title":"Yield stability of soybean lines using additive main effects and multiplicative interaction analysis - AMMI","authors":"M. M. Rocha, N. Vello, Â. C. Almeida, Lopes, M. C. C. Maia","doi":"10.12702/1984-7033.V04N04A03","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A03","url":null,"abstract":"nes (G) using additive main effects and multiplicative interaction analysis (AMMI). Effects of the G, E, and GE interaction were found to be significant and accounted for 51, 12, and 36% of the variation, respectively. The first and only significant interaction princi pal component axis (IPCA1) accounted for 26% of the sum of squares due to original GE interaction. This concentrated the largest proportion of the pattern of GE interaction. Environments associated with Anhembi and Esalq proved more favorable, while Areao contributed negatively to the grain yield. However, Anhembi and Areao were more predictable for the crop years. USP 93-5082 and USP 93-5243 lines combined high adaptability and stability.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"53 1","pages":"391-398"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91162944","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}
Pub Date : 2004-12-31DOI: 10.12702/1984-7033.V04N04A11
A. L. Alzate-Marin, K. Arruda, K. A. Souza, E. G. Barros, M. Moreira
2 and Co-5 genes derived from G 2333, with the marker assisted selection (MAS), and b) the characterization of the resistant lines with different pathotypes of C. lindemuthianum. Thirteen lines of the 'carioca grain type' were selected; ten carrying the Co-4 2 and three the Co-5 gene, all showing resistance to the anthracnose pathotypes tested in this work. The association of adapted lines with the Co-4 2 gene combined with other resistance genes should provide durable resistance to this disease in Brazil and in other parts of the world.
{"title":"Introgression of Co-4 2 and Co-5 anthracnose resistance genes into 'Carioca' Common bean cultivars","authors":"A. L. Alzate-Marin, K. Arruda, K. A. Souza, E. G. Barros, M. Moreira","doi":"10.12702/1984-7033.V04N04A11","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A11","url":null,"abstract":"2 and Co-5 genes derived from G 2333, with the marker assisted selection (MAS), and b) the characterization of the resistant lines with different pathotypes of C. lindemuthianum. Thirteen lines of the 'carioca grain type' were selected; ten carrying the Co-4 2 and three the Co-5 gene, all showing resistance to the anthracnose pathotypes tested in this work. The association of adapted lines with the Co-4 2 gene combined with other resistance genes should provide durable resistance to this disease in Brazil and in other parts of the world.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"37 1","pages":"446-451"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78471226","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}
Pub Date : 2004-12-31DOI: 10.12702/1984-7033.V04N04A15
C. Pacheco, A. C. Oliveira, E. E. Gama, Manoel Xavier dos Santos, S. N. Parentoni, W. F. Meirelles, P. E. Guimarães, P. H. Ribeiro
The objective of this study was to verify the influence of the environmental index on the analysis and estimates of adaptability and stability parameters, using environmental indices obtained from four genotype groups (A, B, C, and QPM). Data of preliminary maize cultivars trials of Embrapa Maize and Sorghum, were used obtained in the 2000/2001 harvest season in nine environments of the southeast and central-western regions. The interchange of environmental indices did not affect the paramete r estimates and the genotype classification of the four groups equally in relation to their stabilities of yield and response to environments. The cause of this variation is probably more linked to the experimental errors and the differences in the interaction of the g enotypes of each group with the environments than to the covariance of the genotype means with their respective environmental indices.
{"title":"Influence of the environmental index on the estimation of stability parameters of Eberhart and Russell","authors":"C. Pacheco, A. C. Oliveira, E. E. Gama, Manoel Xavier dos Santos, S. N. Parentoni, W. F. Meirelles, P. E. Guimarães, P. H. Ribeiro","doi":"10.12702/1984-7033.V04N04A15","DOIUrl":"https://doi.org/10.12702/1984-7033.V04N04A15","url":null,"abstract":"The objective of this study was to verify the influence of the environmental index on the analysis and estimates of adaptability and stability parameters, using environmental indices obtained from four genotype groups (A, B, C, and QPM). Data of preliminary maize cultivars trials of Embrapa Maize and Sorghum, were used obtained in the 2000/2001 harvest season in nine environments of the southeast and central-western regions. The interchange of environmental indices did not affect the paramete r estimates and the genotype classification of the four groups equally in relation to their stabilities of yield and response to environments. The cause of this variation is probably more linked to the experimental errors and the differences in the interaction of the g enotypes of each group with the environments than to the covariance of the genotype means with their respective environmental indices.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"12 1","pages":"472-476"},"PeriodicalIF":1.5,"publicationDate":"2004-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89085533","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：