Pub Date : 2003-12-31DOI: 10.12702/1984-7033.V03N04A06
A. Gonzaga, R. T. Faria, M. F. Oliveira, V.B.R. Castiglioni
The post-harvest longevity of six sunflower genotypes developed by Embrapa Soybean was assessed by comparing the control T1 (stems in water) with six pulsing treatments with sucrose, T2 to T6, (20, 40, 60, 80, 100 gL -1 ) and T7, sucrose (40 gL -1 ) associated with 200 mgL -1 8-HQC. After pulsing treatment for 24h, the inflorescences were placed in a maintenance solution with 20 gL -1 sucrose and assessed daily by score criteria, defined to quantify the longevity in number of vase days. The pulsing treatments promoted longevity in various ways among the genotypes tested. The best treatments were: T5 and T6 (genotype 153); T3 and T7 (genotype 101); T6 (genotype 181); T7 (genotype 127); T4 and T5 (genotype 140) and T4 (genotype 114). Longevity was increased by two to three days in these treatments compared to the control.
{"title":"Genotype interaction x Helianthus post-harvest longevity.","authors":"A. Gonzaga, R. T. Faria, M. F. Oliveira, V.B.R. Castiglioni","doi":"10.12702/1984-7033.V03N04A06","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A06","url":null,"abstract":"The post-harvest longevity of six sunflower genotypes developed by Embrapa Soybean was assessed by comparing the control T1 (stems in water) with six pulsing treatments with sucrose, T2 to T6, (20, 40, 60, 80, 100 gL -1 ) and T7, sucrose (40 gL -1 ) associated with 200 mgL -1 8-HQC. After pulsing treatment for 24h, the inflorescences were placed in a maintenance solution with 20 gL -1 sucrose and assessed daily by score criteria, defined to quantify the longevity in number of vase days. The pulsing treatments promoted longevity in various ways among the genotypes tested. The best treatments were: T5 and T6 (genotype 153); T3 and T7 (genotype 101); T6 (genotype 181); T7 (genotype 127); T4 and T5 (genotype 140) and T4 (genotype 114). Longevity was increased by two to three days in these treatments compared to the control.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"32 1","pages":"281-288"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73609811","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A03
V. Carpentieri-Pipolo, F. André, Martins da Silva, A. L. Seifert
Nine popcorn genotypes were assessed for eight traits and their genetic divergence was estimated by multivariated techniques to identify parents for inclusion in breeding programs involving hybridization. The nine genotypes were divided into two groups by the Tocher method using the generalized Mahalanobis distances. The popping expansion, popcorn size and grain mass per plant were considered the most important agronomic traits for selecting parents for crossing. Using the divergence and these trait scores as criteria for crossing, the crosses between genotype 9 (group II) and genotypes 8, 3, 7, and 5 (group I) were recommended. Therefore, only four (11%) out of 36 possible (diallel) crosses among the nine assessed genotypes would be made.
{"title":"Popcorn parental selection based on genetic divergence","authors":"V. Carpentieri-Pipolo, F. André, Martins da Silva, A. L. Seifert","doi":"10.12702/1984-7033.V03N04A03","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A03","url":null,"abstract":"Nine popcorn genotypes were assessed for eight traits and their genetic divergence was estimated by multivariated techniques to identify parents for inclusion in breeding programs involving hybridization. The nine genotypes were divided into two groups by the Tocher method using the generalized Mahalanobis distances. The popping expansion, popcorn size and grain mass per plant were considered the most important agronomic traits for selecting parents for crossing. Using the divergence and these trait scores as criteria for crossing, the crosses between genotype 9 (group II) and genotypes 8, 3, 7, and 5 (group I) were recommended. Therefore, only four (11%) out of 36 possible (diallel) crosses among the nine assessed genotypes would be made.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"30 1","pages":"261-268"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87163083","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A11
L. C. Faria, M. Peloso, Joaquim Geraldo C. Costa, C. Rava, G. E. S. Carneiro, D. M. Soares, J. L. C. Díaz, A. Sartorato, J. C. Faria
‘BRS Radiante’, developed by Embrapa Rice & Beans, has been indicated for cropping in the states of Goias/Distrito Federal, Mato Grosso do Sul and Minas Gerais since 2002. It can be commercially classified as striped colored grain type and presents superior agronomic traits such as yield potential, wide adaptation, good grain quality, erect plant type and resistance to lodging.
{"title":"'BRS Radiante' - sugar common bean","authors":"L. C. Faria, M. Peloso, Joaquim Geraldo C. Costa, C. Rava, G. E. S. Carneiro, D. M. Soares, J. L. C. Díaz, A. Sartorato, J. C. Faria","doi":"10.12702/1984-7033.V03N04A11","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A11","url":null,"abstract":"‘BRS Radiante’, developed by Embrapa Rice & Beans, has been indicated for cropping in the states of Goias/Distrito Federal, Mato Grosso do Sul and Minas Gerais since 2002. It can be commercially classified as striped colored grain type and presents superior agronomic traits such as yield potential, wide adaptation, good grain quality, erect plant type and resistance to lodging.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"58 1","pages":"307-310"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80926704","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A04
R. Araújo, É. Miglioranza, R. Montalván, D. Destro, M. Gonçalves-Vidigal, V. Moda‐Cirino
Iron deficiency in the human organism is a serious public health problem throughout the world. In the human food, one of the main sources of this mineral element is legumes, among which the common beans are important. The objective of this experiment was to study the genotype x environment interaction effects on the grain bean iron content to estimate the adaptation and stability of common bean genotypes in three environments. The experiments were carried out in Londrina, Marechal Cândido Rondon and Iguatemi, in Parana state, Brazil, from September to December 1998. Twenty-five common bean genotypes were assessed in randomized complete block designs with four replications. Nitroperchloric digestion was performed and the iron was quantified in ground bean grains, using an atomic absorption spectrophotometer. The genotypes Iapar-57 and Perola are recommended for cropping based on the adaptation and stability results. They showed superior grain iron content, had wide adaptation (Bli = 1) and good predictability (σ 2 di = 0).
人体缺铁是世界范围内一个严重的公共卫生问题。在人类的食物中，这种矿物质元素的主要来源之一是豆类，其中普通豆类是重要的。本试验旨在研究基因型与环境互作对籽粒大豆铁含量的影响，以评估普通豆类基因型在三种环境下的适应性和稳定性。实验于1998年9月至12月在巴西巴拉那州的Londrina、Marechal、ndido Rondon和Iguatemi进行。25种常见的豆类基因型采用随机完全区组设计进行评估，共4个重复。采用原子吸收分光光度计对豆粒中的铁进行了定量分析。根据适应性和稳定性的结果，推荐Iapar-57和Perola基因型用于种植。晶粒铁含量高，适应性广(Bli = 1)，可预测性好(σ 2 di = 0)。
{"title":"Genotype x environment interaction effects on the iron content of common bean grains","authors":"R. Araújo, É. Miglioranza, R. Montalván, D. Destro, M. Gonçalves-Vidigal, V. Moda‐Cirino","doi":"10.12702/1984-7033.V03N04A04","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A04","url":null,"abstract":"Iron deficiency in the human organism is a serious public health problem throughout the world. In the human food, one of the main sources of this mineral element is legumes, among which the common beans are important. The objective of this experiment was to study the genotype x environment interaction effects on the grain bean iron content to estimate the adaptation and stability of common bean genotypes in three environments. The experiments were carried out in Londrina, Marechal Cândido Rondon and Iguatemi, in Parana state, Brazil, from September to December 1998. Twenty-five common bean genotypes were assessed in randomized complete block designs with four replications. Nitroperchloric digestion was performed and the iron was quantified in ground bean grains, using an atomic absorption spectrophotometer. The genotypes Iapar-57 and Perola are recommended for cropping based on the adaptation and stability results. They showed superior grain iron content, had wide adaptation (Bli = 1) and good predictability (σ 2 di = 0).","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"111 1","pages":"269-274"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89730233","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A10
V. Cirino, L. Oliari, N. D. Silva, F. Júnior, M. A. Lollato
IPR Juriti is a common bean cultivar developed by the Agronomic Institute of the State of Parana (IAPAR), released for sowing in all areas of the states of Parana and Sao Paulo. It belongs to the carioca commercial group, and has a high yield potential and erect stem and branches, which favors seed quality and direct mechanical harvesting. It flowers and reaches maturity at 42 and 89 days after germination, respectively. It is resistant to the common mosaic virus, rust and powdery mildew, and moderately resistant to the common bacterial blight. It also presents a moderate tolerance to acid soils, high temperatures and water stress, which may happen during the reproductive stage.
{"title":"IPR Juriti - common bean cultivar","authors":"V. Cirino, L. Oliari, N. D. Silva, F. Júnior, M. A. Lollato","doi":"10.12702/1984-7033.V03N04A10","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A10","url":null,"abstract":"IPR Juriti is a common bean cultivar developed by the Agronomic Institute of the State of Parana (IAPAR), released for sowing in all areas of the states of Parana and Sao Paulo. It belongs to the carioca commercial group, and has a high yield potential and erect stem and branches, which favors seed quality and direct mechanical harvesting. It flowers and reaches maturity at 42 and 89 days after germination, respectively. It is resistant to the common mosaic virus, rust and powdery mildew, and moderately resistant to the common bacterial blight. It also presents a moderate tolerance to acid soils, high temperatures and water stress, which may happen during the reproductive stage.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"115 1","pages":"303-306"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84680177","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A01
C. Castro, A. Oliveira, Fernando Irajá Félix Carvalho, M. Maia, L. Mattos, F. A. D. Freitas
Italian ryegrass is the most important temperate grass in Rio Grande do Sul, Brazil. Despite its overall importance, there are no breeding programs for this species in this State. The purpose of this study was to evaluate the existing variability within and between four Italian ryegrass populations, three from Rio Grande do Sul, Brazil, and one from Uruguay. The populations were characterized based on morphological traits such as: number of tillers, canopy diameter, heading date, total leaf area, number of leaves, area/leaf, leaf dry matter, stem dry matter, leaf/stem ratio and dry matter yield. Molecular variation was also characterized using RAPD markers. A large variability was found within the populations (98.41%), which limited the complete separation of populations. However, significant differences were found among populations for traits of great forage interest, such as the number of tillers, canopy and heading date, indicating that the present variability is suitable for the initiation of a breeding program.
{"title":"Morphological and molecular characterization of italian ryegrass populations","authors":"C. Castro, A. Oliveira, Fernando Irajá Félix Carvalho, M. Maia, L. Mattos, F. A. D. Freitas","doi":"10.12702/1984-7033.V03N04A01","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A01","url":null,"abstract":"Italian ryegrass is the most important temperate grass in Rio Grande do Sul, Brazil. Despite its overall importance, there are no breeding programs for this species in this State. The purpose of this study was to evaluate the existing variability within and between four Italian ryegrass populations, three from Rio Grande do Sul, Brazil, and one from Uruguay. The populations were characterized based on morphological traits such as: number of tillers, canopy diameter, heading date, total leaf area, number of leaves, area/leaf, leaf dry matter, stem dry matter, leaf/stem ratio and dry matter yield. Molecular variation was also characterized using RAPD markers. A large variability was found within the populations (98.41%), which limited the complete separation of populations. However, significant differences were found among populations for traits of great forage interest, such as the number of tillers, canopy and heading date, indicating that the present variability is suitable for the initiation of a breeding program.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"24 1","pages":"245-254"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86889212","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A09
V. Cirino, L. Oliari, N. D. Silva, F. Júnior, M. A. Lollato
IPR Grauna is a common bean cultivar developed by the Agronomic Institute of the State of Parana (IAPAR) and released for sowing in all areas of the state of Parana. It belongs to the black commercial group, has a high yield potential and erect stem and branches, which favors seed quality and direct mechanical harvesting. It flowers and reaches maturity at 38 and 86 days after germination, respectively, and is resistant to the common mosaic virus, rust and powdery mildew and moderately resistant to the common bacterial blight and the angular leaf spot.
{"title":"IPR Graúna - common bean cultivar","authors":"V. Cirino, L. Oliari, N. D. Silva, F. Júnior, M. A. Lollato","doi":"10.12702/1984-7033.V03N04A09","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A09","url":null,"abstract":"IPR Grauna is a common bean cultivar developed by the Agronomic Institute of the State of Parana (IAPAR) and released for sowing in all areas of the state of Parana. It belongs to the black commercial group, has a high yield potential and erect stem and branches, which favors seed quality and direct mechanical harvesting. It flowers and reaches maturity at 38 and 86 days after germination, respectively, and is resistant to the common mosaic virus, rust and powdery mildew and moderately resistant to the common bacterial blight and the angular leaf spot.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":"301-302"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89739129","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A05
D. Destro, Henrique Stoco Bizeti, M. M. Filho, L. K. Morais, C. Troia, R. Montalván
Long cooking time for soybean seeds hinders their regular ‘in natura’ use as a rich source of protein. The objective of this research was to study the genetic variability of cooking time in soybean and its correlation with seed weight and imbibition percent. Pure food-type soybean lines were assessed having been cultivated in a greenhouse (experiment 1) and pure lines derived from crosses between grain type and food type soybean cultivars cropped in the field (experiment 2). In experiment 1, wide variability was detected in all the traits and the cooking time varied from 26 minutes to 170 minutes. In experiment 2 the range of cooking time was less (63 to 124 minutes). The most pronounced correlations were between imbibition percent and cooking time (-0.41*) for experiment 1 and between seed weight before and after imbibition with cooking time (0.42 and 0.41*) for experiment 2. The results showed substantial genetic variability in soybean cooking time. This can be used to obtain cultivars for human consumption with important decreases in cooking time.
{"title":"Genetic variability for traits related to cooking time in soybean","authors":"D. Destro, Henrique Stoco Bizeti, M. M. Filho, L. K. Morais, C. Troia, R. Montalván","doi":"10.12702/1984-7033.V03N04A05","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A05","url":null,"abstract":"Long cooking time for soybean seeds hinders their regular ‘in natura’ use as a rich source of protein. The objective of this research was to study the genetic variability of cooking time in soybean and its correlation with seed weight and imbibition percent. Pure food-type soybean lines were assessed having been cultivated in a greenhouse (experiment 1) and pure lines derived from crosses between grain type and food type soybean cultivars cropped in the field (experiment 2). In experiment 1, wide variability was detected in all the traits and the cooking time varied from 26 minutes to 170 minutes. In experiment 2 the range of cooking time was less (63 to 124 minutes). The most pronounced correlations were between imbibition percent and cooking time (-0.41*) for experiment 1 and between seed weight before and after imbibition with cooking time (0.42 and 0.41*) for experiment 2. The results showed substantial genetic variability in soybean cooking time. This can be used to obtain cultivars for human consumption with important decreases in cooking time.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"188 11 1","pages":"275-280"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86379055","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 : 2003-12-31DOI: 10.12702/1984-7033.V03N04A02
Joel Weçolovis, J. R. Unfried, R. Montalván, M. Rondon
Starch, the most important component in cassava, has been largely used by the food industry. This work aimed at evaluating the starch content variation (%) in six cultivars namely Fecula Branca, Olho Junto, Fibra, Verdinha, Espeto and Mico. Planting took place from October 1998 in Marechal Cândido Rondon, Brazil. Cultivars were sampled between the 7th and the 10th month of plant life. Starch content evaluation (%) was calculated by the hydrostatics scale method. Fecula Branca, Olho Junto and Fibra cultivars presented the largest amount of starch content, 29.7%, 29.1% and 29.1% respectively. The Mico cultivar, on the other hand, had the poorest performance regarding starch accumulation, 25.0%. As for the starch content profile along the periods studied, it was verified that the Fecula Branca, Olho Junto, Verdinha and Espeto showed a stable pattern, while the Fibra and Mico cultivars tended to develop more progressively.
{"title":"Starch content variation in cassava cultivars during four harvesting seasons in Marechal Cândido Rondon, Brazil","authors":"Joel Weçolovis, J. R. Unfried, R. Montalván, M. Rondon","doi":"10.12702/1984-7033.V03N04A02","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N04A02","url":null,"abstract":"Starch, the most important component in cassava, has been largely used by the food industry. This work aimed at evaluating the starch content variation (%) in six cultivars namely Fecula Branca, Olho Junto, Fibra, Verdinha, Espeto and Mico. Planting took place from October 1998 in Marechal Cândido Rondon, Brazil. Cultivars were sampled between the 7th and the 10th month of plant life. Starch content evaluation (%) was calculated by the hydrostatics scale method. Fecula Branca, Olho Junto and Fibra cultivars presented the largest amount of starch content, 29.7%, 29.1% and 29.1% respectively. The Mico cultivar, on the other hand, had the poorest performance regarding starch accumulation, 25.0%. As for the starch content profile along the periods studied, it was verified that the Fecula Branca, Olho Junto, Verdinha and Espeto showed a stable pattern, while the Fibra and Mico cultivars tended to develop more progressively.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"74 1","pages":"255-260"},"PeriodicalIF":1.5,"publicationDate":"2003-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88340824","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 : 2003-09-30DOI: 10.12702/1984-7033.V03N03A06
M. C. Gonçalves, A. M. Correa, D. Destro, L. C. Ferreira, T. A. Sobrinho
The objective of this study was to estimate the correlation coefficients (genotypic, phenotypic and environmental) and carry out path analysis between grain yield in kg.ha-1 (basic variable) and its primary components (explicative variables). The experiments, in randomized complete blocks with three replications, were carried out in the counties of Dourados-MS and Aquidauana-MS in the 2000/2001 growing season. Sixteen common bean genotypes were assessed including advanced lines and commercial varieties. Yield per plant and number of pods were explicative variables included in the study that presented the best combinations of path coefficient and correlation, both positive and of high magnitude, and both were superior to that of the variable number of seeds per pod. The explicative variable weight of 100 seeds correlated negatively with grain yield, although its path coefficient was positive, thus suggesting that it should be considered in breeding studies to increase grain yield.
{"title":"Correlations and path analysis of common bean grain yield and its primary components","authors":"M. C. Gonçalves, A. M. Correa, D. Destro, L. C. Ferreira, T. A. Sobrinho","doi":"10.12702/1984-7033.V03N03A06","DOIUrl":"https://doi.org/10.12702/1984-7033.V03N03A06","url":null,"abstract":"The objective of this study was to estimate the correlation coefficients (genotypic, phenotypic and environmental) and carry out path analysis between grain yield in kg.ha-1 (basic variable) and its primary components (explicative variables). The experiments, in randomized complete blocks with three replications, were carried out in the counties of Dourados-MS and Aquidauana-MS in the 2000/2001 growing season. Sixteen common bean genotypes were assessed including advanced lines and commercial varieties. Yield per plant and number of pods were explicative variables included in the study that presented the best combinations of path coefficient and correlation, both positive and of high magnitude, and both were superior to that of the variable number of seeds per pod. The explicative variable weight of 100 seeds correlated negatively with grain yield, although its path coefficient was positive, thus suggesting that it should be considered in breeding studies to increase grain yield.","PeriodicalId":49085,"journal":{"name":"Crop Breeding and Applied Biotechnology","volume":"1 1","pages":"217-222"},"PeriodicalIF":1.5,"publicationDate":"2003-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82333275","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}
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