Crop Breeding and Applied Biotechnology最新文献_第8页

Genetic control of common bean reaction to angular leaf spot 普通豆对角斑病反应的遗传控制

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A05

H. A. Mendonça, J. B. Santos, M. Antonio, P. Ramalho

{"title":"Genetic control of common bean reaction to angular leaf spot","authors":"H. A. Mendonça, J. B. Santos, M. Antonio, P. Ramalho","doi":"10.12702/1984-7033.V03N03A05","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N03A05","url":null,"abstract":"The Carioca MG (susceptible = P 1 ) and Perola (resistant = P 2 ) cultivars were used as parents in a cross aiming at investigating the genetic control of the common bean plant reaction to Phaeoisariopsis griseola. Two hundred and fifty-one families (141 F 2:3 , 53 F 2 RC 11 and 57 RC 12 ) from this cross were evaluated for angular leaf spot severity in the leaves and pods, in two generations, under natural incidence of the pathogen. The genetic variance components, heritability in the broad ( 2 h ) and narrow ( 2 h ) senses and number of genes that control the reaction to angular leaf spot were estimated. The families were genetically different for level of resistance to the pathogen, and varied from 59.20% to 72.41% and varied from 19.32% to 73.79% for the leaf analysis. For reaction to the pathogen in the pods, the varied from 55.00% to 68.22% and was nil, indicating the presence of dominant alleles in the control of the trait, and of genes different from those responsible for the control of the disease in the leaves. Only one gene was estimated for the genetic control of the reaction to the pathogen in the leaves and two genes in the pods.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"25 1","pages":"209-216"},"PeriodicalIF":1.5,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78832288","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

Estimates of repeatability and path coefficients on grapes 估计葡萄的可重复性和通径系数

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A08

P. Souza, Joao Gomes Costa

{"title":"Estimates of repeatability and path coefficients on grapes","authors":"P. Souza, Joao Gomes Costa","doi":"10.12702/1984-7033.V03N03A08","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N03A08","url":null,"abstract":"The objective of this study was to estimate the repeatability coefficient, the minimum number of evaluations to which a trait should be subjected and the effect of the inter-relationships of five characters on grapevine (Vitis spp.) yield, aiming at getting useful information for breeding strategies of this fruit crop. Repeatability coefficients were estimated for the following characters: total soluble solids (TSS); total titrable acidity (TTA); TSS/TTA ratio; berry length, diameter and weight; bunch length, width and weight, and number and yield of bunches per plant on eleven seedless grape varieties in five yield cycles (1997 and 1998) in Petrolina-PE. The repeatability estimates were obtained by the main components method from the correlation matrix. The simple correlation coefficients were calculated and they were partitioned into direct and indirect effects by the path analysis. The estimated repeatability coefficients ranged from 0.4750 to 0.8372 associated to the coefficients of determination from 81.9% to 96.26%. The traits TSS, TTA and bunch length presented low repeatability coefficients, meaning a low regularity of performance from one measurement to another. The other characters showed regularity on the repetition of the behavior of the genotypes. The results of the path analysis showed that the studied variables satisfactorily explain the character yield per plant.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"20 1","pages":"231-236"},"PeriodicalIF":1.5,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77108074","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: 8

Baby corn single-cross hybrids yield in two plant densities 玉米单交杂交种在两种密度下产量

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A01

L. R. F. Rodrigues, N. D. Silva, É. Mori

引用次数: 11

Environment effect on grain quality in early common bean cultivars and lines 环境对早期普通豆品种和品系籽粒品质的影响

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A03

A. Corte, V. Moda‐Cirino, M. Scholz, D. Destro

{"title":"Environment effect on grain quality in early common bean cultivars and lines","authors":"A. Corte, V. Moda‐Cirino, M. Scholz, D. Destro","doi":"10.12702/1984-7033.V03N03A03","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N03A03","url":null,"abstract":"The objective of the present study was to assess the technological and nutritional quality of seven early common bean cultivars and nine lines. An experiment in completely randomized blocks was carried out in three locations in the wet 2001/2002 growing season. One hundred gram samples were collected from each material at physical maturity to estimate the grain technological and nutritional characteristics and also the weight of 1000 seeds, shape and degree of seed flattening were assessed by the J and H coefficient, respectively. The joint analysis of variance showed significant genotype and environment effect at 1% probability. The genotype x environment interaction was significant at 1% probability for all the characteristics assessed except for the weight of 1000 seeds and the J coefficient. Cooking time showed positive phenotypic and genotypic correlation with percentage of whole grains after cooking, weight of 1000 seeds and seed shape, indicating the possibility of simultaneous selection among these characteristics. However, the total solids in the sauce correlated negatively with these traits that are desirable in the industrial processes of the common bean.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"15 1","pages":"193-202"},"PeriodicalIF":1.5,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86436444","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: 65

Hybrid cocoa tree adaptability and yield temporal stability in Rondônia State, Brazil 巴西Rondônia州杂交可可树适应性和产量的时间稳定性

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A09

C. Guilherme, Portela de Carvalho, Caio Márcio, Vasconcellos Cordeiro de Almeida, D. C. Cosme, Paulo Fernades Rodrigues Machado

{"title":"Hybrid cocoa tree adaptability and yield temporal stability in Rondônia State, Brazil","authors":"C. Guilherme, Portela de Carvalho, Caio Márcio, Vasconcellos Cordeiro de Almeida, D. C. Cosme, Paulo Fernades Rodrigues Machado","doi":"10.12702/1984-7033.V03N03A09","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N03A09","url":null,"abstract":"Hybrid cocoa tree (Theobroma cacao L.) adaptability and yield temporal stability were studied to screen agronomically superior varieties for yield, bean quality and resistance to witches’ broom under the ecological conditions of Ouro Preto do Oeste County, Rondonia State, Brazil. Assessments were based on yield component measurements evaluated at maturity in a randomized complete block experiment. Additionally, the possibility of early hybrid selection, at the initial fructification phase, was investigated. For this, the results obtained from both periods was compared. At maturity, the SCA 6 x ICS 1, PA 150 x SIC 328 and IMC 67 x BE 8 hybrids were superior in the simultaneous analysis of total number of healthy fruits (TNHF), total weight of fresh beans (TWFB) and mean weight of fresh beans per fruit (MWFBF). Using Eberhart and Russell’s methodology, PA 150 x SIC 328 had general adaptability and highly predictable performance for TNHF. The SCA 6 x ICS 1 hybrid also had general adaptability, in spite of indicated low predictability. The IMC 67 x BE 8 cross was adapted to unfavorable environments and had high predictability for TNHF. The SCA 6 x ICS 1 and PA 150 x SIC 328 hybrids behaved similarly for TWFB, showing adaptability to favorable environments and high predictability. IMC 67 x BE 8 showed general adaptability and high predictability for this trait. The three hybrids showed general adaptability and high predictability for MWFBF. On the base of mean performance (or i P values of Lin and Binn’ methodology), hybrid selection was also successful using measurements taken at the initial fructification phase. On the other hand, the Eberhart and Russel’s adaptability and stability parameters depended on the period evaluated.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"75 1","pages":"237-244"},"PeriodicalIF":1.5,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85980712","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

Genotype-environment interaction in maize hybrids: an application of the AMMI model 玉米杂交种基因型-环境互作:AMMI模型的应用

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A02

J. P. Oliveira, Weber Neves Moreira, J. Duarte, L. Chaves, J. B. Pinheiro

{"title":"Genotype-environment interaction in maize hybrids: an application of the AMMI model","authors":"J. P. Oliveira, Weber Neves Moreira, J. Duarte, L. Chaves, J. B. Pinheiro","doi":"10.12702/1984-7033.V03N03A02","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N03A02","url":null,"abstract":"The genotype-environment interaction is generally recognized when the same genotype is assessed in different environments, having a decisive influence in cultivar recommendation. Maize hybrids that are only adapted to particular environments can become a limiting factor to seed production in large scale. One of the main objectives of breeders is the obtainment of a hybrid with high mean yield and good adaptation to different environments. The present study assessed the grain yield stability in thirty-six maize genotypes in ten environments located in Central Brazil in the 1999/2000 growing season. The analysis of variance (ANOVA) detected significance (P<0.01) for the genotype-environment interaction (GE). The AMMI model (additive main effects and multiplicative interaction) was used to assess the additive and multiplicative effects of the interaction. The results indicated homogeneity of environments assessed and high correlation of the hybrid genetic constitution with the yield stability of the three types studied -single, triple and double crosses maize hybrids. The first multiplicative component of the interaction explained more than half (50.6%) of the original sum of squares (SS GE ). Most of the environments were neutral in their contribution to the interaction. The Uberlândia environment contributed positively, while the environment in Patos de Minas contributed negatively to the GE interaction. Most of the genotypes also presented a low contribution to interaction. Some single crosses hybrids presented greater mean yield (10182.0 kg.ha -1 ) while the double crosses hybrids presented greater stability to the","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"142 1","pages":"185-192"},"PeriodicalIF":1.5,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77849846","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

Estimates of genetic parameters in common bean genotypes 普通豆类基因型遗传参数的估计

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-09-30 DOI: 10.12702/1984-7033.V03N03A07

A. M. Correa, M. C. Gonçalves, D. Destro, L. C. Ferreira, T. A. Sobrinho

引用次数: 10

Embryo culture and in vitro clonal multiplication of Prunus 'Capdeboscq' rootstock 山李砧木胚培养及离体克隆增殖研究

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-06-30 DOI: 10.12702/1984-7033.V03N02A07

M. P. Guerra, M. Rogalski, Aparecido Lima da Silva

引用次数: 1

Genetic variation in Astronium fraxinifolium populations in consortium 天竺葵群体遗传变异的研究

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-06-30 DOI: 10.12702/1984-7033.V03N02A02

A. Aguiar, F. Bortolozo, Mário Luiz, T. Moraes, J. Costa

引用次数: 7

Assessment of the carbon dissimilation methodology in the in vitro growth of the 'Paulsen 1103' grapevine “保尔森1103”葡萄藤体外生长中碳异化方法的评估

IF 1.5 4区农林科学

Crop Breeding and Applied Biotechnology Pub Date : 2003-06-30 DOI: 10.12702/1984-7033.V03N02A09

F. Moreira, Marcelo Borghezan, Aparecido Lima da Silva

{"title":"Assessment of the carbon dissimilation methodology in the in vitro growth of the 'Paulsen 1103' grapevine","authors":"F. Moreira, Marcelo Borghezan, Aparecido Lima da Silva","doi":"10.12702/1984-7033.V03N02A09","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N02A09","url":null,"abstract":"A simple and non-destructive carbon dissimilation method to assess plant cell growth was tested for its in vitro suitability for grape vines. In vitro culture plants can either use atmospheric CO 2 or the sugars present in the culture medium as carbon source. Carbon dissimilation predicts that the sugar metabolism of the culture medium results in a net weight loss of the culture flask contents and may thus be used to follow culture growth. The ‘Paulsen 1103’ grapevine rootstock was introduced and multiplied in vitro by the auxiliary shoot methodology. Tubes with and without plants were weighed daily throughout an experimental growth period of 60 days. Results from the in vitro plants showed that the variety studied presented dissimilation and assimilation activity over the culture period and therefore presented in vitro fotomixotrophy. There were three distinct growth phases: an initial phase, during the first 10 days of culture, where there was intense weight loss by dissimilation; a second stationary phase, which lasted approximately 10 days, and a final phase of 40 days, where an important weight gain was observed (37.68 mg). Thus carbon use and micropropagated plant growth could be assessed quickly and efficiently.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"14 1","pages":"157-162"},"PeriodicalIF":1.5,"publicationDate":"2003-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82866778","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: 1