Pre-breeding manipulations for pod yield stability in a snap bean cultivar

Because of interest in maximizing production per unit area in regions where the land base is limited, the effects of planting density; (16–116 plants m−2) and planting design on pod yield of bush snap bean (Phaseolus vulgaris L.) were measured in replicated field trials with cv. Harvester in 1980 and 1981. Three planting designs were used: (a) conventional row designs with interplant spacing of 5 cm and interrow spacing of 20, 45, 80 and 125 cm; (b) square designs with interplant and interrow spacings both at 10, 15, 20 and 25 cm; and (c) triangle designs (honeycomb) with plants arranged at equal distances of 10, 15, 20 and 25 cm from each of their six nearest neighbors. In all three planting designs, higher planting densities (up to 116 plants m−2) gave higher pod yields per unit area. Except for the lower response in the square design in 1981, increases in yield with increasing density were similar for all designs in both years. Pod yields did not differ from one design to the other in 1980. In 1981, the triangle design gave the highest average yield and the row design gave the lowest average yield. The results confirm observations of yield advantages in planting designs which use equal spacing in all directions.Key words: Yield-density relationship, row spacing, honeycomb design, snap bean, Phaseolus vulgaris

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Improvement in the Stability and Yield Performance of a Snap Bean Cultivar

Journal of Vegetable Crop Production ◽

10.1300/j068v09n02_04 ◽

2004 ◽

Vol 9 (2) ◽

pp. 19-30 ◽

Cited By ~ 2

Author(s):

E. Traka-Mavrona ◽

D. Georgakis ◽

M. Koutsika-Sotiriou

Keyword(s):

Yield Performance ◽

Snap Bean ◽

Bean Cultivar ◽

The Stability

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Variation for Calcium Concentration among 64 Genotypes of Snap Bean (Phaseolus vulgaris)

HortScience ◽

10.21273/hortsci.30.4.797b ◽

1995 ◽

Vol 30 (4) ◽

pp. 797B-797

Author(s):

Juan M. Quintana ◽

Helen C. Harrison ◽

James Nienhuis

Keyword(s):

Experimental Design ◽

Phaseolus Vulgaris ◽

Atomic Absorption ◽

Negative Correlation ◽

Calcium Concentration ◽

Essential Element ◽

Strong Negative Correlation ◽

Snap Bean ◽

Pod Yield ◽

Snap Beans

Calcium is an essential element for human nutrition. The lack of it causes various problems, such as osteoporosis. Snap beans rank as good sources of calcium among vegetables and are well-liked by most teenagers. In this study, pod yield and Ca concentration were analyzed for 64 genotypes of snap beans, plus four checks. The experimental design was a 8 x 8 double lattice, repeated at two locations (Arlington and Hancock, Wis.). Snap beans were planted in June 1993 and machine-harvested 67 days later, in Aug. 1993. Calcium analyses were made using an Atomic Absorption Spectometer. Results indicated significant differences for pod Ca concentration and yield. Pod size and Ca concentration showed a strong negative correlation (R = 89.5). Clear differences among the locations were also observed. Results were consistent—high-Ca genotypes remained high regardless of location or pod size. Selected genotypes appeared to have the ability to absorb Ca easier than others, but this factor was not related to yield.

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Development of Bean Rust Epidemics in a Field Planted with Alternate Rows of a Resistant and a Susceptible Snap Bean Cultivar

Phytopathology ◽

10.1094/phyto-78-1210 ◽

1988 ◽

Vol 78 (9) ◽

pp. 1210 ◽

Cited By ~ 6

Author(s):

Donald E. Aylor

Keyword(s):

Bean Rust ◽

Snap Bean ◽

Bean Cultivar

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Phenology and Quality Studies on a Snap Bean Cultivar Deviation

Journal of New Seeds ◽

10.1300/j153v04n04_03 ◽

2002 ◽

Vol 4 (4) ◽

pp. 41-56 ◽

Cited By ~ 2

Author(s):

Ekaterini Traka-Mavrona ◽

Dimitrios Georgakis ◽

Metaxia Koutsika-Sotiriou

Keyword(s):

Snap Bean ◽

Bean Cultivar

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COMPOSTING METHODS AND AMENDMENTS AFFECT GERMINATION AND GROWTH OF VEGETABLES

HortScience ◽

10.21273/hortsci.27.6.663b ◽

1992 ◽

Vol 27 (6) ◽

pp. 663b-663

Author(s):

N.E. Roe ◽

S.R. Kostewicz

Keyword(s):

Poultry Manure ◽

Dry Weight ◽

Snap Bean ◽

Composting Process ◽

Pod Yield ◽

Lettuce Seeds ◽

Delayed Germination ◽

Soluble Fertilizer ◽

Germination And Growth ◽

Nitrogen Additions

Nitrogen additions to high C:N yard wastes improve the composting process and the usefulness of the product. Nine composts were made with additions of 10 or 25% grass clippings or poultry manure (PM) and several composting methods (in bin, turned, static). Turnip, tomato, watermelon, snap bean, and lettuce seeds were germinated, and some were grown to maturity in pots. The 25% PM compost delayed germination of turnips and beans by 2 days, but final germination % was not affected. Germination of melon (27%) was significantly less with 25% PM than with other composts. Tomato germination was not affected by any treatment, but dry weight of 4 week old seedlings grown in PM treatments was 4 times greater than other treatments. Pod yield of beans grown in 10% PM compost was equal to beans grown in potting mix with soluble fertilizer.

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Modification of Plant Arrangement Suppresses White Mold of Snap Beans

HortScience ◽

10.21273/hortsci.41.5.1298 ◽

2006 ◽

Vol 41 (5) ◽

pp. 1298-1302 ◽

Cited By ~ 7

Author(s):

Ed Peachey ◽

Robin L. Ludy ◽

Mary L. Powelson ◽

Daniel M. McGrath

Keyword(s):

Disease Severity ◽

Field Studies ◽

Planting Density ◽

White Mold ◽

Row Spacing ◽

Snap Bean ◽

Pod Yield ◽

Severity Of Disease ◽

Snap Beans ◽

Row Width

Field studies were conducted in 1999 and 2001 in western Oregon to determine the effect of between-row spacing on severity of white mold (Sclerotinia sclerotiorum) in snap beans. Planting density was held constant at 445,000 plants ha–1 and between-row spacing ranged from 19 to 150 cm. Disease severity and pod rot were greatest in both years of study at the 19-cm between-row spacing and declined linearly as between-row widths increased. Severity of disease in 1999 was 24%, 41%, and 88% lower at the 38-, 75-, and 150-cm between-row spacings, respectively, than at the 19-cm row spacing. In 2001, disease severity was 11%, 25%, 34%, and 51% less at the between-row widths of 38, 75, 114, and 150 cm, respectively, than at the 19-cm row spacing. Incidence of pod rot declined by 0.24% and 0.64% for each 10-cm increase in between-row width in 1999 and 2001, respectively. The fungicide vinclozolin effectively suppressed pod rot in both years at all between-row spacings. Pod yield was not influenced by between-row spacings of 19 to 114 cm, but yield was significantly lower at the between-row spacings of 150 cm. Increasing the between-row width of snap bean rows may be an effective disease management tactic to suppress white mold when fungicides are not applied or if efficacious fungicides are not available.

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CULTIVAR BY ENVIRONMENT INTERACTIONS, YIELD STABILITY AND GROUPING OF TEST LOCATIONS FOR FIELD BEAN CULTIVAR TRIALS IN ONTARIO

Canadian Journal of Plant Science ◽

10.4141/cjps87-092 ◽

1987 ◽

Vol 67 (3) ◽

pp. 653-659 ◽

Cited By ~ 1

Author(s):

S. J. PARK

Keyword(s):

Phaseolus Vulgaris ◽

Variance Components ◽

Yield Stability ◽

Regression Coefficients ◽

Yield Potential ◽

Field Bean ◽

Environment Interaction ◽

Phaseolus Vulgaris L ◽

Yield Data ◽

Bean Cultivar

Yield data of six recommended cultivars grown at seven locations (L) over 6 yr (Y) in the Ontario field bean (Phaseolus vulgaris L.) cultivar trials were analyzed to examine cultivar by environment interaction components, to determine yield stability of cultivars, and to group test locations. Cultivar (C), C × L, and C × L × Y effects were highly significant with large variance components indicating the importance of cultivar and test locations. The C × Y interaction was not significant. When yield stability was evaluated using cultivar means, regression coefficients (b), and deviations from linear regression (S2d), Ex Rico 23 was identified as being stable and potentially high yielding. Test locations were grouped into four homogeneous subareas by a biological classification method. Since breeding or recommending cultivars for four small subareas is not practical, efforts should be devoted to improving average stability and yield potential by testing at locations representative of homogeneous subareas.Key words: Bean (field), Phaseolus vulgaris, yield testing, genotype × environment interactions

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Rates of calcium, yield and quality of snap bean

Scientia Agricola ◽

10.1590/s0103-90162007000600009 ◽

2007 ◽

Vol 64 (6) ◽

pp. 616-620 ◽

Cited By ~ 3

Author(s):

Simone Palma Favaro ◽

José Antônio Braga Neto ◽

Hideaki Wilson Takahashi ◽

Édison Miglioranza ◽

Elza Iouko Ida

Keyword(s):

Nutrient Solution ◽

Calcium Concentration ◽

Fruits And Vegetables ◽

Negative Relationship ◽

Dry Weight ◽

Apical Region ◽

Snap Bean ◽

Bean Cultivar ◽

Snap Beans ◽

Young Leaves

Calcium ions (Ca) play an important role in many biochemical processes, delaying senescence and controlling physiological disorders in fruits and vegetables. The objective of this experiment was to analyze the effect of increasing calcium concentrations in snap beans. Snap bean cultivar UEL 1 was sown in sand containing 80 mg L-1 of calcium supplemented with nutrient solution, plus calcium at different contents: 0, 75, 150 and 300 mg L-1. Ca was mainly recovered in the shoots, followed by roots and pods. Calcium concentrations in the pods were 130, 259, 349 and 515 mg 100 g-1dry matter on a dry weight basis, in relation to the enhancement of calcium contents in the nutrient solution, respectively. A negative relationship between nitrogen content in the pods and calcium concentration in the nutrient solution was observed. Pods from plants grown in a solution without Ca presented necrosis in their apical region. Dieback of roots, shoots and young leaves also occurred under low calcium supply. Dry matter of pods, roots and shoots, number of pods per plant, pod weight and pod length increased proportionally to calcium concentration in solution. Increasing rates of calcium improved biomass production in snap bean cultivar UEL 1.

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