Comparison of Pod Calcium Concentration between Two Snap Bean Populations

Quintana, Juan M.; Harrison, Henrietta; Nienhuis, James; Palta, Jiwan P.; Kmiecik, K.; Miglioranza, Édison

doi:10.21273/jashs.124.3.273

Cited by 11 publications

(2 citation statements)

References 26 publications

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“…With higher ET, more water moves through the plant and since Ca moves with the transpiration stream, more Ca moves into the plant and fruit. Quintana et al (1999) suggested differences in bean Ca concentration from year to year were due to variations in rainfall, temperature, and other environmental factors. In the study, beans that had higher Ca concentrations were grown during the season that was higher in temperature.…”

Section: Resultsmentioning

confidence: 99%

Blossom-end Rot Incidence of Tomato as Affected by Irrigation Quantity, Calcium Source, and Reduced Potassium

Taylor¹,

Locascio²,

Alligood³

2004

HortSci

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`Equinox' tomatoes (Lycopersicon esculentum Mill.) were grown during the springs of 2001 and 2002 with black polyethylene-mulch and drip irrigation on an Arredondo fine sand in Gainesville, Fla., to study the influence of water quantity, Ca source, and reduced K on incidence of blossom-end rot (BER), marketable fruit yield, and fruit and leaf Ca concentration. Tensiometers were used to schedule irrigation in main plots when the soil matric potential reached 10 or 25 kPa. Subplot nutritional treatments were no added Ca, Ca(NO3)2, Ca thiosulfate, CaCl2, CaSO4, and K rate reduced by 50%. Interactions between year and treatment were significant. During 2001, total marketable yields were higher with Ca(NO3)2 or CaCl2 compared to plants that received Ca thiosulfate and were higher from plants irrigated at 10 kPa than irrigated at 25 kPa. Number and weight of BER fruit were lower with Ca(NO3)2 and reduced K than with no added Ca and CaSO4. Leaf and fruit Ca concentrations were generally higher with Ca(NO3)2 compared to all other nutritional treatments. Leaf and fruit Ca concentrations were generally higher from plants irrigated at 10 kPa than at 25 kPa. The reduction of NH4+-N, by the supply of N as NO3-, and the addition of supplemental Ca reduced the incidence of BER, and increased the leaf and fruit Ca concentrations. During 2002, marketable yields were higher with CaSO4 than with CaCl2 and reduced K. Weight and number of BER fruit were lower with irrigation at 10 kPa than at 25 kPa. Leaf and fruit Ca concentrations were higher or similar from plants that received Ca(NO3)2 than with all other nutritional treatments. During the 2002 season, rainfall was less and temperatures and daily evapotranspiration (ET) were higher than in the 2001 season. In the 2002 season, 3.28 × 106 L·ha-1 of irrigation was applied as compared to 1.58 × 106 L·ha-1 in 2001. With an average Ca concentration of 76 mg·L-1 in the irrigation water, much more Ca was applied during the higher ET 2002 season. With the higher transpiration and temperature, water uptake and hence, Ca uptake were increased. During both seasons, the lowest Ca concentration was observed at the blossom end of the fruit and the highest Ca at the stem end of the fruit. Fruit Ca concentrations were lower and BER was 5 times higher in the lower ET, higher rainfall (lower irrigation) 2001 season compared to the higher ET, lower rainfall (higher irrigation) 2002 season. These data support that BER was a symptom of Ca deficiency and this deficiency was aggravated by high rainfall, low ET, and the resulting reduced irrigation applied and reduced Ca uptake.

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Section: Resultsmentioning

confidence: 99%

Blossom-end Rot Incidence of Tomato as Affected by Irrigation Quantity, Calcium Source, and Reduced Potassium

Taylor¹,

Locascio²,

Alligood³

2004

HortSci

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“…Results from this study indicate that efforts to improve Ca and Mg concentration of broccoli through genetic improvement may be impeded by the significant influence that the environment can have on ultimate concentrations, and also by potential negative linkages between mineral concentration and other traits such as head weight. In a recent paper, Quintana et al (1999) concluded that environmental effects should not hinder breeding efforts to enhance Ca content of snap bean. That conclusion for snap bean, differs from our prediction for broccoli, emphasizing that efforts to enhance mineral concentration must be examined on a crop by crop basis.…”

Section: Discussionmentioning

confidence: 99%

Calcium and Magnesium Concentration of Inbred and Hybrid Broccoli Heads

Farnham¹,

Grusak²,

Wang³

2000

jashs

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Broccoli (Brassica oleracea L., Italica Group) is a good vegetable source of Ca and Mg, two critical minerals in human nutrition. Studies have shown that bioavailability of Ca from broccoli is comparable to that from milk. Thus, broccoli is an important alternative source of Ca in segments of the population that consume limited amounts of dairy products. Essentially nothing is known about the genetic influence on variation in Ca or Mg concentration of broccoli heads. Thus, the goal of this research was to examine variation in Ca, and also Mg concentrations, in a collection of USDA inbreds and commercial F1 hybrids. In 1996 and 1997 field studies, significant differences among inbred entries and among hybrid entries were observed for Ca and Mg concentrations of broccoli heads. With hybrids and inbreds, mean head Ca concentrations were ≈3.0 mg·g-1 dry weight (DW), and entries with lowest and highest Ca concentrations differed >2-fold. Mean Mg concentrations of hybrid heads was 2.3 mg·g-1 DW (range 1.8 to 2.6) and 2.8 mg·g-1 DW (range 2.2 to 3.7) in 1996 and 1997, respectively. Inbred lines had mean head Mg concentrations of 2.0 and 2.6 mg·g-1 DW in the two respective years and ranges in concentration were similar as for hybrids. Analysis of variance indicated significant environment and entry by environment effects for Ca and Mg concentrations of hybrids. With inbreds, a significant entry by environment effect for Ca concentration and environment effect for Mg concentration was also observed. Significant environment and entry by environment effects indicate that the environmental influence on phenotypic expression of Ca and Mg concentrations may complicate genetic improvement of head mineral concentration.

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