scholarly journals The determinants of common bean variety selection and diversification in Colombia

2021 ◽  
Vol 190 ◽  
pp. 107181
Author(s):  
Hernan Botero ◽  
Andrew P. Barnes ◽  
Lisset Perez ◽  
David Rios ◽  
Julian Ramirez-Villegas
Keyword(s):  
Common Bean ◽  
Bean Variety ◽  
Variety Selection

scholarly journals Demand Driven Common Bean Variety Development and Promotion for Enhanced Productivity and Production

Proceedings ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 139
Author(s):  
Berhanu Amsalu Fenta ◽  
Kassay Negash ◽  
Kidane Tumssa ◽  
Tigist Shiferaw ◽  
Dagmawit Tsegaye ◽  
...  
Keyword(s):  
Common Bean ◽  
Seed Production ◽  
Value Chain ◽  
Innovative Technology ◽  
Agricultural Practice ◽  
Total Production ◽  
Improvement Program ◽  
Bean Variety ◽  
Good Agricultural Practice ◽  
Variety Selection

Common bean research program of Ethiopia aimed at development of demanded variety for enhanced adoption, improve food and nutrition security as well as to boost income of smallholder farmers thereby enhancing foreign earnings of the country. To achieve these aim, the breeding program use different strategies. These incudes, importing demanded variety and fast-track testing release, introducing bean germplasm and release stable variety and participatory variety selection for incorporating growers traits on variety selection. Accordingly, bean improvement program selected six major bean products that includes, small/large white beans, speckled bean, small/large reds and mottled beans. During variety selection stakeholders’ choice and trait of preference has been incorporated during interactive consultative forums of the value chain actor at bean innovation multi-stakeholder platform. Apart from bean variety development, integrated crop management technologies has been developed to implement good agricultural practice. To facilitate common variety adoption, bean seed system have been enhanced through integration of early generation seed production with formal and informal seed production of public and private seed producers. These efforts has enhanced transformed productivity from 0.7 to 1.5 t/ha and area expanded from 150,000 ha to 520,121 ha and total production up to 568,243 t. Due to this fact bean export has been increased up to 100–150 million USD per annum. Generally, the demand led breeding and value chain approach, synergetic and innovative technology generation and promotion has transformed bean productivity, area produced and market; consecutively livelihood of growers and income of the country has been enhanced.

scholarly journals Integrating Conventional and Participatory Breeding Approaches in Assessment of Common Bean Varieties for Farmer Preffered Traits

2019 ◽  
Vol 11 (5) ◽  
pp. 104
Author(s):  
Papias H. Binagwa ◽  
Magdalena William ◽  
Julius P. Mbiu ◽  
Eunice Zakayo ◽  
Shida M. Nestory ◽  
...  
Keyword(s):  
Common Bean ◽  
Agronomic Traits ◽  
Selection Process ◽  
Block Design ◽  
Group Discussion ◽  
High Yield ◽  
Market Demand ◽  
Variety Selection ◽  
Early Maturing ◽  
Participatory Variety Selection

It is estimated that over 75% of rural households in Tanzania depend on common bean (Phaseolus vulgaris L.) for daily subsistence. Recently, farmers have been increasingly looking for improved bean varieties which meet specific market demands characterized with yellow seed colour, early maturing and/or adapted to local agro-ecologies. Study focused on assessing the performance of bean varieties for agronomic traits through variety and environmental interactions by identifying high yielding, ealy maturing and market demand seed classes among the tested materials. For testing adaptability and stability, experiments were conducted in low to high altitudes for two consecutive years using randomized complete block design (RCBD) with three replicates. Eight common bean varieties KG98, Navy line 1, KATB9, SABRYT, KATB1, Lyamungu 85, JESCA and Calima Uyole were used. Absolute, matrix and pairwise ranking were used integratively for farmers’ and researcher’s assessment and selection. Participatory variety selection approach gave farmers an opportunity to assess and select varieties from a range of near finished materials in the breeding process. As part of the Farmers’ participatory variety selection process, seventeen participants as among the consumers 46% being women were selected to participate in a focused group discussion. Results revealed that, days to flowering, days to maturity and yield across the tested environments showed significant differences (p ≤ 0.05) as well as yield and diseases interactions for genotype, environment and season. Field data and farmers’ assessment data showed two varieties of KATB1 (yellow round) and KATB9 (red round) for better performance (high yield) and grain preference respectively. It showed that, early maturing; seed type and marketability varieties are highly demanded by bean farmers in Tanzania.

scholarly journals The effects of Mo, Cu, Mn on some physiological indexes of common bean variety NHPO4 at seedling stage

2019 ◽  
Vol 15 (3) ◽  
pp. 117
Author(s):  
Le Van Trong Trong ◽  
Bui Bao Thinh
Keyword(s):  
Common Bean ◽  
Water Content ◽  
Chlorophyll Content ◽  
Scientific Basis ◽  
Water Holding Capacity ◽  
Seedling Stage ◽  
Bean Variety ◽  
Physiological Indexes ◽  
The Common ◽  
Water Holding

This paper presents the results about effect of Mo, Cu, Mn to some physiological indexes of common bean variety NHP04 at seedling stage. The results showed that Mo, Cu and Mn affected water content in leaves, water holding capacity, transpiration intensity and chlorophyll content in leaves, in which Mo had the most effect. The results of this research can serve as scientific basis to enhance the tolerance and productivity of the common bean varieties and the plant.

scholarly journals EFFECTS OF SALINITY ON GROWTH AND PROLINE CONTENT ON BEAN AND ALFALFA

2021 ◽  
Vol 186 (2) ◽  
pp. 132-145
Author(s):  
Sabah RAZI ◽  
Fatima Zohra KHADHIR
Keyword(s):  
Common Bean ◽  
Broad Bean ◽  
Dry Mass ◽  
Proline Content ◽  
Leguminous Plants ◽  
Fresh Biomass ◽  
Bean Variety ◽  
Negative Effect ◽  
Soil Desalination ◽  
El Jadida

Soil salinity is a major agricultural constraint in many countries. Plants’ response to salinity depends on the species and the salt concentration in the soil. The objective of this study was to test the resistance of three leguminous plants - common bean (variety ‘El-Jadida’), broad bean (variety ‘Claro de Luna’), and alfalfa (variety ‘Diamon’) - to several salinity rates and to show which one was more resistant to salt stress. This study was carried out under controlled conditions, with six NaCl concentrations (0, 1, 3, 6, and 9 g/kg) added to a mixture of potting soil and sand. A completely randomised design was used, where the three legumes were cultivated with different salt concentrations to determine the effect of these doses on fresh biomass, dry mass, and physiological parameters (sodium and proline content). The results showed the negative effect of salinity on fresh biomass and dry mass of shoots and roots. Claro de Luna, the broad bean variety, was more adapted to salinity than alfalfa and common bean. The amount of sodium in the shoots and roots of the three species increased with increasing salinity. Alfalfa may play a role in soil desalination; at 53.33 mM NaCl, 100 mg alfalfa dry mass absorbed 4.5 mg Na per pot, which corresponded to the uptake of about 0.6 kg Na per hectare of soil. Proline content increased with increasing salt concentrations.

scholarly journals Participatory variety selection of common bean (Phaseolus vulgaris L.) genotypes in the major bean producing areas of Ethiopia

2020 ◽  
pp. 1055-1063
Author(s):  
Shiferaw G. Tigist ◽  
Rob Melis ◽  
Julia Sibiya ◽  
Beyene Amelework ◽  
Gemechu Keneni
Keyword(s):  
Phaseolus Vulgaris ◽  
Common Bean ◽  
Selection Criteria ◽  
Phaseolus Vulgaris L ◽  
Breeding Lines ◽  
Lattice Design ◽  
Crop Varieties ◽  
Variety Selection ◽  
Participatory Variety Selection ◽  
Selection Of

This study was conducted to identify suitable parental genotypes for breeding for resistance to bruchid and to identify the farmers’ preferred traits in common bean. For this study, 144 diverse common bean genotypes were planted in an alpha lattice design, with 3 replications at 3 locations. Participatory variety selection was done using 20 farmers at each location. Farmers identified a number of criteria for selecting suitable varieties. Yield and yield-related traits were ranked as the most important selection criteria by all farmers at all locations. However, women ranked culinary traits as the top criteria, while men were more interested in marketable traits. From the 144 genotypes, farmers selected the 10 best genotypes in all the locations. The majority of the genotypes selected at Melkassa and Alemetena were small white-seeded released varieties and breeding lines. However, all the genotypes selected at Arsi Negele were predominantly landraces of small red-seeded beans. Traits such as earliness and resistance to storage insect were important in Melkassa and Alme tena but received less attention in Arsi Negele. The integration of the farmers’ selection preferences with the breeders’ criteria can improve the efficiency of plant breeding by developing crop varieties that better fit the specific needs of the farmers.

scholarly journals Evaluación de pentacloronitrobenceno (PCNB) en el control de la pudrición radicular cusada por Rhizoctonia solani Kuhn en frijol común (Phaseolus vulgaris L.)

2016 ◽  
Vol 1 ◽  
pp. 55
Author(s):  
Sergio Pichardo Guido
Keyword(s):  
Phaseolus Vulgaris ◽  
Grain Yield ◽  
Rhizoctonia Solani ◽  
Common Bean ◽  
Yield Reduction ◽  
Common Beans ◽  
Phaseolus Vulgaris L ◽  
Bean Variety

This experiment was conducted at “La Compañía”, Estación Experimental del Instituto Superior de Ciencias Agropecuarias (ISCA), which is located in the department of Carazo, Nicaragua. The trial was conducted during the months of June through September, 1987 with the following objectives: 1) To determine the appropiate rate of pentachloronitrobenzene (PCNB) for control of Rhizoctonia solani in common beans, 2) To evaluate the effect of mixing PCNB and “ Metalaxyl” on grain yield of common beans, 3) To determine yield reduction percentages caused by R. solani in common beans and 4) To select the best common bean variety in this experiment relative to the defined treatments. The results demonstrated that PCNB applied at a rate of 6.81 kg/ha was 3 % higher than the check and 12% higher than the highest rate of PCNB (11.36 kg/ha). The variety “Revolución 84” provided the highest yields compared to other entries.

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