scholarly journals Mejoramiento genético de frijol tipo Andino para Panamá: Resultados de un proyecto de PROFRIJOL. 1993-1996.

2015 ◽  
Vol 10 (1) ◽  
pp. 23
Author(s):  
Emigdio Rodríguez ◽  
Edwin Lorenzo ◽  
Francisco González
Keyword(s):  
Common Bean ◽  
Growth Pattern ◽  
Block Design ◽  
Breeding Program ◽  
Commercial Use ◽  
Grain Color ◽  
Morphologic Characteristics ◽  
Randomized Complete Block Design ◽  
Web Blight

Native germplasm of a Panama common bean was evaluated in order to obtain its morphologic characteristics and compare them with a group of lines and varieties of CIAT’s breeding program. The purpose was to find a germplasm that could surpass native varieties in terms of its resistance to Web Blight, yield, growing habits, and grain color. A randomized complete block design was used. Five promising lines for commercial use were selected based on yield, resistance to Web Blight, growth pattern, and grain color criteria. Three bean lines are undergoing validation trials in farms.

scholarly journals Heterodera glycine race 2 and the yield of common bean in Puerto Rico.

1969 ◽  
Vol 86 (3-4) ◽  
pp. 117-122
Author(s):  
James R. Smith
Keyword(s):  
Puerto Rico ◽  
Common Bean ◽  
Seed Yield ◽  
Yield Components ◽  
Block Design ◽  
Randomized Complete Block Design ◽  
Glycine Max L ◽  
Race 2 ◽  
Pod Number

Heterodera glycines, a destructive pathogen of soybean (Glycine max L. Merc), was recently discovered in Puerto Rico. Common bean (Phaseolus vulgaris L.) can also be a host for H. glycines, but there are no reports of the effect of H. glycines on seed yield of bean. The objective of this study was to determine the effect of the Puerto Rico race-2 population of H. glycines on yield components of common bean. Three resistant and three non-resistant bean lines were exposed to three infestation densities (0, 4,000, and 8,000 eggs and juveniles per pot) of H. glycines race 2, A factorial arrangement of lines and infestation densities was used in a randomized complete block design with six replications in a greenhouse in Isabela, Puerto Rico, in 2000. Data for seed number, pod number, and seed yield per plant were collected. H. glycines had no effect on any yietd component. Observed differences in yield components were due to genotypic factors unrelated to H. glycines. Initial conclusions indicate that H. glycines will not affect yield of common bean in Puerto Rico. Follow-up studies of common bean and H. glycines, using course-textured sous, are recommended.

scholarly journals Effect of row arrangement of common bean with maize intercropping on yield and economic benefit of component crops under Gimbo and Guraferda, Kaffa and Bench Maji zones, South Ethiopia

2020 ◽  
Vol 10 (1) ◽  
pp. 22-27
Author(s):  
M Mogiso ◽  
N Nazib
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Economic Benefit ◽  
Block Design ◽  
Cropping System ◽  
Maize Yield ◽  
Use Of Resources ◽  
Randomized Complete Block Design ◽  
Bean Yield ◽  
Cropping Seasons

The yield advantage obtained due to intercropping is attributed to a better use of resources by crops grown in combinations, as compared to sole stands. Field experiment conducted at Gimbo and Guraferda during 2017 and 2018 cropping seasons in order to determine the appropriate intercropping row arrangement on maize-common bean yield and economic advantages of the cropping system. Maize variety BH-540 and common bean variety Hawassa dume were used as test crop. The experiment used four treatments (sole maize, sole common bean, 1:1 maizecommon bean and 1:2 maize-common bean intercropping) arranged in a randomized complete block design with four replications. Grain yield of the component crops were significantly varied by locations. The highest maize yield was recorded at Guraferda than Gimbo; whereas, common bean yielded better at Guraferda than at Gimbo. The combined mean grain yield of maize and common bean was significantly (p<0.05) higher for sole stands than intercropping. The highest yield of 6545.7 and 5570.6 kg ha-1 was obtained from sole maize at Guraferda and Gimbo locations, respectively. On the other hand, the highest yield of 3407.2 and 2638.0 kg ha-1 was obtained from growing sole common bean at Gimbo and Guraferda locations, respectively. The yield obtained from 1:1 maize-common bean intercropping was statistically same with sole maize yield at Guraferda. The highest LER of 1.62 and 1.52 with MAI of 15,268.05 and 13.695.90 ETB ha-1 obtained from 1:1 maize-common bean intercropping at Guraferda and Gimbo locations, respectively. Generally, growing 1:1 maize-common bean intercropping found to be more productive and economically profitable than others. Hence, a one row common bean intercropped between the two rows of maize can be recommended in the lowlands of Gimbo and Guraferda areas. Int. J. Agril. Res. Innov. Tech. 10(1): 22-27, June 2020

Plant and seed nutrient uptake in common bean in seven organic and conventional production systems

2011 ◽  
Vol 91 (6) ◽  
pp. 1089-1099 ◽  
Author(s):  
Dale Westermann ◽  
Henry Terán ◽  
Carlos Muñoz-Perea ◽  
Shree Singh
Keyword(s):  
Common Bean ◽  
Nutrient Uptake ◽  
Production Systems ◽  
Block Design ◽  
Dry Bean ◽  
Whole Plant ◽  
Randomized Complete Block Design ◽  
Conventional Production ◽  
On Farm ◽  
Uptake Of Nutrients

Westermann, D. T., Terán, H., Muñoz-Perea, C. G. and Singh, S. P. 2011. Plant and seed nutrient uptake in common bean in seven organic and conventional production systems. Can. J. Plant Sci. 91: 1089–1099. Knowledge of plant and seed nutrient uptake by crop cultivars in organic and conventional production systems (PS) is essential for breeding the most appropriate genotypes for each PS. The objective was to determine the plant and seed uptake of nitrogen (N), phosphorus (P), potassium (K), copper (Cu), manganese (Mn), and zinc (Zn) by 16 common bean genotypes. We also identified genotypes efficient in plant and seed nutrient uptake across seven organic and conventional PS. A randomized complete block design with four replicates (one plot per replicate) was used for evaluation in each of seven organic and conventional PS in 2003 and 2004. The effects of plant and seed uptake of nutrients, genotypes, PS, and the genotype × PS interaction were significant (P≤0.05). Plant and seed uptake of nutrients decreased in on-station continual dry bean and drought-stressed and on-farm organic low-input compared with on-station conventional irrigated and on-farm organic high-input PS. Common bean genotypes with higher biomass yield, in general, also had higher nutrient uptake, regardless of PS. In general, N and P uptakes were high and that for Mn was markedly low among common bean genotypes. Pinto CO46348, Bill Z, and Othello and Mexican red NW-63 and UI 239 were high-yielding and used nutrients more efficiently across seven organic and conventional PS and years. Other cultivars either had low biomass and seed yield (e.g., Common Pinto, Topaz, Common Red Mexican, UI 59) or were more efficient at whole-plant uptake or seed uptake of nutrients, but not both (e.g., Matterhorn, UI 465). Use of the above five genotypes should be maximized for production in both organic and conventional PS, and for breeding high-yielding broadly adapted cultivars efficient in plant and seed nutrient uptake in organic and conventional PS.

scholarly journals Silicate rocks as an alternative potassium fertilizer for upland rice and common bean crops

2021 ◽  
Vol 56 ◽  
Author(s):  
Rogério Peres Soratto ◽  
Carlos Alexandre Costa Crusciol ◽  
Murilo de Campos ◽  
Claudio Hideo Martins da Costa ◽  
Amanda Prado Gilabel ◽  
...  
Keyword(s):  
Grain Yield ◽  
Common Bean ◽  
Upland Rice ◽  
Block Design ◽  
Efficiency Index ◽  
Potassium Fertilizer ◽  
Agronomic Efficiency ◽  
Randomized Complete Block Design ◽  
Alternative Sources ◽  
Silicate Rocks

Abstract: The objective of this work was to evaluate the efficiency of molten and ground alkaline potassium-silicate rocks (K1) and of ground phonolite rock (K2) as sources of potassium for upland rice (Oryza sativa) and common bean (Phaseolus vulgaris) crops, in comparison with the traditional source (KCl). Two experiments - one with each crop - were conducted on a Typic Haplorthox in a randomized complete block design with four replicates. The treatments consisted of three sources (KCl, K1, and K2) and four rates (0, 20, 40, and 80 kg ha-1 K2O) of K. Regardless of the used source, K fertilization increased the leaf K content and grain yield of the upland rice and common bean crops. The agronomic efficiency index (AEI) of the alternative K sources varied according to the crop. For upland rice, the AEI of K2 was 8% higher than that of KCl at the recommended K rate, but similar at the highest rate. For common bean, the AEI values of K1 were close to that of KCl at the rates of 40 and 80 kg ha-1 K2O. The alternative sources K1 and K2 supply K and increase the grain yield of common bean and upland rice, respectively, similarly to KCl.

scholarly journals Dynamics of abscission of reproductive structures in common bean access

2021 ◽  
Vol 20 (1) ◽  
pp. 010-018
Author(s):  
Nicole Orsi ◽  
Caroline Moraes ◽  
Ana Carolina da Costa Lara-Fioreze ◽  
Samuel Luiz Fioreze
Keyword(s):  
Common Bean ◽  
Block Design ◽  
Reproductive Period ◽  
Gene Pools ◽  
Flowering Period ◽  
Mesoamerican Gene Pool ◽  
Reproductive Structures ◽  
Protected Cultivation ◽  
Randomized Complete Block Design ◽  
The Subject

Genotypes from the Andean and Mesoamerican gene pool can present contrasting behavior for reproductive structures fixation. The subject of this study was to determine the dynamics associated with the abscission of reproductive structures for common bean accesses from Andean and Mesoamerican gene pools in protected cultivation conditions. The experiment was carried out in a greenhouse, using seven common bean accesses from Embrapa Arroz e Feijão and the experimental design consisted of a randomized complete block design. The evaluations made were based on the number of days to begin flowering, flowering period, number of emitted flowers per plant, number of flower buds, flowers and pods aborted per plant, total number of pods per plant and number of seeds per plant.Certain characteristics were considered to be highly significant, such as the amount of days to begin flowering, the flowering period, percentage of aborted pods and number of harvested pods. The Mesoamerican accesses that presented greater abortion also produced more flowers, which suggests that abortion of reproductive structures can be a natural adjustment of the plant. Andean accessions with shorter reproductive period showed greater pod abortion. The dynamics of flower and pod abscission in the common bean proved to be widely variable depending on the different gene pools and genotypes evaluated and due to growth habit.

scholarly journals POWDERY MILDEW INOCULATION TECHNIQUES FOR A Cucurbita moschata BREEDING PROGRAM

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1075b-1075
Author(s):  
Linda Wessel Beaver ◽  
Ruth Cienfuegos
Keyword(s):  
Powdery Mildew ◽  
Recurrent Selection ◽  
Block Design ◽  
Breeding Program ◽  
Infected Tissue ◽  
Inoculation Methods ◽  
Erysiphe Cichoracearum ◽  
Inoculation Techniques ◽  
Randomized Complete Block Design ◽  
Sib Selection

In order to effectively use recurrent selection for developing polygenic resistance to powdery mildew (Erysiphe cichoracearum), methods to quantify resistance need to be developed. Our objective was to compare several inoculation methods for their effectiveness in a half-sib selection breeding program. Seven inoculation methods and 3 controls were applied to each of two susceptible C. moschata varieties planted in pots and arranged in a randomized complete block design with five replications. The experiment was repeated two times. Single degree of freedom comparisons found no difference in number of lesions resulting from inoculation by rubbing host with infected tissue vs. attaching infected tissue. Using no adherent resulted in as many lesions as using triton. Egg white as an adherent resulted in fewer lesions than using triton or no adherent. Spraying with a triton spore suspension was not an effective method. While rubbing leaves is fast and easy, attaching pieces of infected tissue may afford more control of spore concentration.

scholarly journals Adaptations of Three Cash Crops to Climate Change

2020 ◽  
Vol 12 (2) ◽  
pp. 247-253
Author(s):  
Eming Sudiana ◽  
Edy Yani ◽  
Lucky Prayoga ◽  
Darsono Darsono ◽  
Edy Riwidiharso ◽  
...  
Keyword(s):  
Climate Change ◽  
Common Bean ◽  
Block Design ◽  
Winged Bean ◽  
Flower Number ◽  
Crop Species ◽  
Test Species ◽  
Cash Crops ◽  
Randomized Complete Block Design ◽  
Two Factors

Climate change is likely to lead to adaptations among important crop species. Elevational gradients can be used to illustrate the effects of climate change on crop adaptation patterns. The research aimed to determine adaptation patterns in crop species across an elevational (and therefore temperature and humidity) gradient. A factorial design was applied with two factors within a simple Randomized Complete Block Design, wherein the primary factor was elevation (10 – 1,000 m). Three crop species (long bean, common bean, and winged bean) were used as test species. Growth rate and flower number were used as adaptation parameters. The results indicated that these three cash crop species showed different adaptation patterns. Common bean showed the greatest vegetative growth at approximately 600 m in elevation, long bean at 400 m in elevation, and winged bean at 10 m in elevation. The results of this study indicate that the three tested agricultural crops have different adaptation patterns, and these results was the first finding to be published in Indonesia. For agriculture practices, it can be recommended that planting of these cash crops be adapted to the elevation of the planting area. 

scholarly journals Generalized mixed linear modeling approach to analyze nodulation in common bean inbred lines

2017 ◽  
Vol 52 (12) ◽  
pp. 1178-1184
Author(s):  
Diego Ary Rizzardi ◽  
Rodrigo Ivan Contreras-Soto ◽  
Alex Sandro Torre Figueiredo ◽  
Carlos Alberto de Bastos Andrade ◽  
Rosangela Getirana Santana ◽  
...  
Keyword(s):  
Common Bean ◽  
Dry Matter ◽  
Negative Binomial ◽  
Block Design ◽  
Inbred Lines ◽  
Linear Modeling ◽  
Control Data ◽  
Modeling Approach ◽  
Randomized Complete Block Design ◽  
Dry Matter Weight

Abstract: The objective of this work was to compare distributions for the modeling of the number and dry matter weight of nodules (DWN) of Rhizobium from different inoculants in common bean (Phaseolus vulgaris) inbred lines subjected to nitrogen doses, as well as to identify the best inoculant for those lines. The experiment was carried out in a randomized complete block design, arranged in split-split plots, with three factors - four inbred lines, five nitrogen doses (0, 20, 40, 60, and 80 kg ha-1), and three inoculants (CIAT 899, UFLA 02-100, and peat) - and four replicates. The number of nodules and their dry matter weight were analyzed with the generalized linear mixed modeling approach. The highest number of nodules was obtained with the CIAT 899 inoculant, at the dose of 20 kg ha-1 N (260 nodules), followed by UFLA 02-100, at 80 kg ha-1 (109 nodules), and peat alone at 20 kg ha-1 (98 nodules). The DWN with CIAT 899 exceeded in 0.66 g the DWN with UFLA 02-100, and in 0.95 g the DWN obtained without inoculation (inoculated with peat alone). The use of the negative binomial distribution and of the gamma distribution is a simple way to control data overdispersion of the nodule number and data underdispersion of DWN, respectively.

scholarly journals Effect of Nitrogen Fertilizer on Growth, Flowering, Fruiting and Nodulation of Three Varieties of Common Bean in the Arid Region of Aïn Naga (Biskra, Algeria)

2020 ◽  
Vol 53 (1) ◽  
pp. 19-35
Author(s):  
Lahouaria Mounia Mansouri ◽  
Abdenour Kheloufi ◽  
R Belatreche ◽  
Nouzha Heleili ◽  
Zineb Faiza Boukhatem
Keyword(s):  
Common Bean ◽  
Nitrogen Fertilizer ◽  
Harvest Index ◽  
Field Experiments ◽  
Block Design ◽  
Fertilizer Application ◽  
N Fertilization ◽  
Randomized Complete Block Design ◽  
Secondary Roots ◽  
Main Factor

Field experiments were conducted to investigate the response of common bean (Phaseolus vulgaris L.) to nitrogen fertilizer. The main factor included the fertilizer (Granular Urea 46% N), was made up of two levels: no fertilization (0 kg/plot: control) and fertilization (0.4 kg/plot), while the secondary factor was the variety (three varieties of common bean: Djedida, Nelson and Jalila). The experimental design was a randomized complete block design with split plot arrangement and replicated four times. The effect of fertilization was evaluated during two development stages (flowering and fruiting) for each variety and this on the total dry biomass, the length of the aerial and root parts, as well as on the number of secondary roots. On the other hand, the combined effect of fertilization and variety was studied on some yield parameters per plant, such as the number of flowers, pods, seeds and the harvest index. In addition, the number of nodules at the end of seed maturation was evaluated. The results indicated that the nitrogen fertilizer application significantly reduced the root length, the number of nodules and secondary roots in most of the common bean varieties. However, fertilizer application significantly increased dry matter in both flowering and fruiting stages, for the three studied varieties. Pod number per plant and seed yield was increased by the application of N fertilizer, depending on varieties and the parameters being measured. Djedida and Jalila varieties gave the best yield and can therefore be recommended to farmers. According to our results, the percentage of improvement by N fertilization on one parameter or another does not exceed an average of 20%, compared to the control. Indeed, the effect of fertilization is positive and seems to increase the harvest index by 18% in Djedida and by 20% in Jalila, compared to non-fertilized plants. Unfertilized plants of the variety Nelson showed the highest ability to nodulate.

scholarly journals Genetic Advancement and Variability of Released Common Bean (Phaseolus vulgaris L.) Varieties from 1974–2009 GC in Ethiopia

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Nigussie Kefelegn ◽  
Frew Mekibib ◽  
Yigzaw Dessalegn
Keyword(s):  
Common Bean ◽  
Block Design ◽  
Genetic Parameter ◽  
Breeding Program ◽  
Seed Color ◽  
Phaseolus Vulgaris L ◽  
Genetic Progress ◽  
Biplot Analysis ◽  
Genetic Potential ◽  
Days To Maturity

The efficiency of variety development can be determined with variability and genetic progress of released varieties. The aim of this study was to determine the variability and genetic advancement of common bean varieties. Randomized Completed Block Design was used to evaluate 15 varieties at Koga and Chefa in 2013. Cluster, principal, and biplot analysis including genetic parameter estimation were done following analysis of variance. Significant variation was observed among the varieties, and they are clustered into four groups. Seed color and size were found as an important factors for clustering of the varieties. Hawassa Dume and Nasir have red and small seeded, respectively, and clustered in one group. Similarly, Awash 1 and Awash Melka are both small white and clustered in one group. Hawassa Dume was highly similar to Nasir, and Red Wolayta with Dimitu, while a large distance was recorded between Awash Melka and Haramaya. Deme and Haramaya were found the most divergent and unique among the tested varieties. This is also reflected in biplot drown by principal components 1 and 2, which together accounted for about 82.022. Plant heights, seed weight, days to maturity, and harvest index have the largest contribution to the total variation of the varieties. Most of the traits have a high phenotypic and genotypic coefficient of variation, heritability, and genetic advance, and selection was effective in the breeding program. The breeding program has brought about 0.27 tonnes of seed yield increment or an annual rate of genetic progress of 0.0077 t ha−1 (0.37% ha−1 year−1). However, the breeding program should reconsider the breeding procedure as there are some varieties released in the same year with similar genetic potential.

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