scholarly journals Morpho-chemical characterization of dry and snap bean (Phaseolus vulgaris L.) landraces collected on Fruska Gora Mt.

Genetika ◽  
2014 ◽  
Vol 46 (1) ◽  
pp. 303-313 ◽  
Author(s):  
Aleksandra Savic ◽  
Gordana Petrovic ◽  
Mirjana Milosevic ◽  
Zorica Nikolic ◽  
Anamarija Stojanovic ◽  
...  

Disappearance of old cultivars, including dry and snap bean (Phaseolus vulgaris L.) has been accelerated in last five to six decades, which mainly led to great genetic impoverishment. For all the humanity and its future, particularly is important the maintenance and evaluation of old cultivar?s seeds. The research presented in this paper has been conducted on the territory of southwestern Fruska gora Mt. Of the collected samples of field and vegetables crops, as well as wild plants on the mountain, 13 accessions of snap bean and 21 accessions of dry bean have been analyzed in this paper. Seed color, seed shape, 1000-seed mass and phaseolin type was determined for all the accessions. Seeds of collected bean and snap bean accessions were predominantly white and cylindrical in shape. Mass of 1000 seeds ranged between 104,90 g and 634,96 g. T phaseolin type dominated, while S type of phaseolin was present in six bean and in two snap bean accessions.

2016 ◽  
Vol 141 (2) ◽  
pp. 131-138 ◽  
Author(s):  
Christina H. Hagerty ◽  
Alfonso Cuesta-Marcos ◽  
Perry Cregan ◽  
Qijian Song ◽  
Phil McClean ◽  
...  

Snap bean (Phaseolus vulgaris L.) breeding programs are tasked with developing cultivars that meet the standards of the vegetable processing industry and ultimately that of the consumer, all the while matching or exceeding the field performance of existing cultivars. While traditional breeding methods have had a long history of meeting these requirements, genetic marker technology, combined with the knowledge of important quantitative trait loci (QTL), can accelerate breeding efforts. In contrast to dry bean, snap bean immature pods and seeds are consumed as a vegetable. Several pod traits are important in snap bean including: reduced pod wall fiber, absence of pod suture strings, and thickened, succulent pod walls. In addition, snap bean pods are selected for round pod cross section, and pods tend to be longer with cylindrical seed shape. Seed color is an important trait in snap bean, especially those used for processing, as processors prefer white-seeded cultivars. The objective of this study was to investigate the genetic control of traits important to snap bean producers and processors. RR6950, a small seeded brown indeterminate type IIIA dry bean accession, was crossed to the Oregon State University (OSU) breeding line OSU5446, a type I Blue Lake four-sieve breeding line to produce the RR138 F4:6 recombinant inbred (RI) mapping population. We evaluated the RR138 RI population for processing and morphological traits, especially those affecting pods. The RR138 population was genotyped with the BARCBean6K_3 Beadchip, and single nucleotide polymorphisms (SNPs) were used to assemble a linkage map, and identify QTL for pod traits. The linkage map produced from this study contained 1689 SNPs across 1196cM. The map was populated with an average of one SNP per 1.4 cM, spanning 11 linkage groups. Seed and flower color genes B and P were located on Pv02 and Pv07, respectively. A QTL for string:pod length (PL) ratio was found on Pv02 controlling 32% of total genetic variation. QTL for a suite of important processing traits including pod wall fiber, pod height, pod width, and pod wall thickness were found clustering on Pv04 and controlled 21%, 26%, 18%, and 16% of genetic variation for each of these respective traits. A QTL for PL was found on Pv09 controlling 5% of genetic variation.


HortScience ◽  
2020 ◽  
Vol 55 (10) ◽  
pp. 1692-1697
Author(s):  
Wesley Gartner ◽  
Paul C. Bethke ◽  
Theodore J. Kisha ◽  
James Nienhuis

Sugars, including glucose, fructose, and sucrose, contribute significantly to the flavor and consumer acceptance of snap beans (Phaseolus vulgaris L.). Sugar accumulation and changes in sugar profiles during snap bean development contribute to overall assessments of quality for breeding lines and cultivars. Developing fruit from a diverse group of four snap bean cultivars containing Andean germplasm and one Mesoamerican dry bean cultivar were sampled at 5-day intervals from 10 to 30 days after flowering over 2 years. Glucose, fructose, and sucrose in pod and seed tissue was quantified using high-performance liquid chromatography. Percent seed mass relative to pod mass increased with days after flowering, but the rate of increase was heterogeneous among cultivars. Significant differences in sugar accumulation patterns of mono- and disaccharides were observed with time of development and between pods and seeds. Glucose and fructose decreased rapidly in pods and seeds with time after flowering. In contrast, sucrose concentration increased in pod tissue but remained constant in seeds of the snap bean cultivars with time after flowering. The patterns of changes in pod and seed sugar concentrations with time after flowering were similar among all snap bean cultivars. In contrast to the snap beans, seed sucrose increased with time after flowering in the Mesoamerican dry bean cultivar Puebla 152. No year by day after flowering interactions were observed for sugar accumulation patterns or sugar concentrations. Younger snap beans had the highest sweetness index based on observed sugar concentrations, percent seed mass, and perception of relative sweetness by the human palate. Although mean sweetness varied between cultivars, the rate of decrease in sweetness with time was the same for all five cultivars. These findings indicate that variation for sweetness exists in snap beans and can be exploited by breeding to develop cultivars with a potentially more desirable, sweet flavor.


2018 ◽  
Vol 9 ◽  
Author(s):  
Ali Soltani ◽  
Samira MafiMoghaddam ◽  
Atena Oladzad-Abbasabadi ◽  
Katelynn Walter ◽  
Patrick J. Kearns ◽  
...  

Bragantia ◽  
2003 ◽  
Vol 62 (1) ◽  
pp. 163-171 ◽  
Author(s):  
Elza Jacqueline Leite Meireles ◽  
Antonio Roberto Pereira ◽  
Paulo Cesar Sentelhas ◽  
Luis Fernando Stone ◽  
Francisco José Pfeilsticker Zimmermann

A caracterização de riscos climáticos para algumas culturas tem sido feita com modelos de simulação e para a cultura do feijoeiro (Phaseolus vulgaris L.) tem-se utilizado o CROPGRO-Dry Bean. Esse modelo calibrado e testado para a região de Santo Antônio de Goiás, GO, foi utilizado na análise de risco climático de quebra relativa de produtividade da cultura naquela região. Para as simulações utilizou-se a série de dados climatológicos (1978 a 1998), as características físicas, químicas e hídricas do solo local (Latossolo Vermelho perférrico), e o módulo "seasonal" do DSSAT 3.5. Foram feitas simulações para a região, a fim de se obter as produtividades potencial (Yp, sem restrição de água no solo) e real (Yr, com restrição dependente das chuvas) da cultivar Carioca. A quebra de rendimento, definida por Q(%) = [1 - (Yr/Yp)].100, foi calculada para cada uma das 36 épocas de semeadura simuladas ao longo do ano, nos 21 anos avaliados, sendo convertidas em freqüência relativa para análise dos resultados. Obteve-se Q > 50% na semeadura da "seca"; Q = 34%, em média, na semeadura das "águas"; e Q > 95%, na semeadura de "inverno". Esses resultados enfatizam a necessidade de irrigação suplementar nas semeaduras da "seca" e das "águas", e durante todo o ciclo, nas semeaduras de "inverno".


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