scholarly journals 095 Vase Life of Cut Roses Grown in Coal Bottom Ash-amended Media: A Correlation with Tissue Calcium

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 405B-405
Author(s):  
Marlene Cross ◽  
Bradford Bearce ◽  
Rajeev Arora
Keyword(s):  
Bottom Ash ◽  
Leaf Tissue ◽  
Vase Life ◽  
Dolomitic Lime ◽  
Coal Bottom Ash ◽  
Low Calcium ◽  
High Calcium ◽  
Tissue Calcium ◽  
Calcium And Magnesium ◽  
Kinetics Of

The vase life of roses grown in coal bottom ash (CBA)-amended media was evaluated. CBA is enriched in calcium, a nutrient implicated in delaying senescence. Two rose cultivars, Cara Mia and Dakota, were grown (from started eye plants) in four media: a 50% CBA medium and a peat:vermiculite medium amended with calcitic and dolomitic lime (1:1) were used as “high calcium” media, whereas a 25% CBA medium and a peat:vermiculite medium amended with dolomitic lime only were used as “low calcium” media. Vase life of the freshly harvested roses was evaluated. Elemental analysis of the leaves showed that roses grown in the “high calcium” media had greater calcium in the leaf tissue as well as longer vase lives (12.6 and 13.5 days) when compared to those grown in the “low calcium” media (12.1 and 10.9 days). However, petal tissue Ca was not affected by media and was not correlated with vase life. Petal tissue calcium was ≈15 times lower than leaf tissue calcium. Calcium and magnesium increased in the petal tissue over the vase life of the senescing petals. A comparison of `Cara Mia' roses (vase life of 14 days) and `Dakota' roses (vase life of 8.5 days) showed that the longer-lived `Cara Mia' had lower leaf and petal calcium levels. Both varieties followed a similar kinetics of electrolyte leakage (total E.C. and K) during their respective vase lives.

Aspects of moisture kinetics of coal bottom ash in concrete

2007 ◽  
Vol 37 (2) ◽  
pp. 231-241 ◽  
Author(s):  
L.B. Andrade ◽  
J.C. Rocha ◽  
M. Cheriaf
Keyword(s):  
Bottom Ash ◽  
Coal Bottom Ash ◽  
Kinetics Of

Thermogravimetric Kinetics of Catalytic and Non-Catalytic Pyrolytic Conversion of Palm Kernel Shell with Acid-Treated Coal Bottom Ash

2020 ◽  
Vol 13 (2) ◽  
pp. 452-462
Author(s):  
David Onoja Patrick ◽  
Suzana Yusup ◽  
Noridah B. Osman ◽  
Haslinda Zabiri ◽  
Yoshimitsu Uemura ◽  
...  
Keyword(s):  
Bottom Ash ◽  
Palm Kernel ◽  
Coal Bottom Ash ◽  
Palm Kernel Shell ◽  
Kinetics Of

scholarly journals SPECIFIC ION SELECTIVITY OF `FORMOSA' AZALEA IRRIGATED WITH SALINE WATER SOURCES

HortScience ◽  
1990 ◽  
Vol 25 (8) ◽  
pp. 862f-862
Author(s):  
E.W. Bush ◽  
J.T. Payne
Keyword(s):  
Water Quality ◽  
Plant Growth ◽  
Root Growth ◽  
Saline Water ◽  
Ion Selectivity ◽  
Negative Relationship ◽  
Leaf Tissue ◽  
Irrigation Water Quality ◽  
Tissue Calcium ◽  
Calcium And Magnesium

Container-grown `Formosa' azalea plants were affected by irrigation water quality. Sodium (200 ppm), supplied by NaHCO3 and NaCl, inhibited plant growth and diminished plant quality. Observable symptoms were tip-burn, marginal necrosis, leaf curling, and eventual defoliation. There was a negative relationship between leaf tissue calcium and magnesium and higher rates of sodium from NaHCO3. Leaf tissue Cl levels were higher in the higher NaCl treatments. Sodium treatments inhibited root growth. Plants in NaHCO3 treatments accumulated more Na than did plants in NaCl treatments. Media pH and sodium levels following 12 months of sodic irrigation far exceeded acceptable levels for producing marketable container-grown `Formosa' azalea plants.

scholarly journals Response of Three Poinsettia Cultivars to Root Media Containing Coal Bottom Ash

HortScience ◽  
1997 ◽  
Vol 32 (3) ◽  
pp. 484B-484
Author(s):  
James Gibson ◽  
Bradford C. Bearce
Keyword(s):  
Plant Tissue ◽  
Bottom Ash ◽  
Coal Ash ◽  
Leaf Tissue ◽  
Planting Date ◽  
Euphorbia Pulcherrima ◽  
B Values ◽  
Coal Bottom Ash ◽  
Root Media ◽  
Mean Diameter

Poinsettia (Euphorbia pulcherrima Willd. Ex Klotsch) cultivars `Dynasty Red', Nutcracker Pink', and `Annette Hegg Topwhite' were planted in 15-cm azalea pots containing peat: vermiculite (1:1, v:v) in which coal bottom ash sieved through 6-mm mesh was mixed in proportions of 0%, 25%, or 50% by volume. Planting date was 23 July 1996, and pinch date was 25 Aug. Harvest date at anthesis was 16 Dec. Plant heights of all cultivars were increased in the ash media. L, a, and b, values measured with a Minolta CR-200 chroma meter differed very slightly among ash levels within cultivars. Mean per plant bract cluster count was very similar among ash levels and cultivars. Mean diameter of largest bract cluster was increased above that of 0% coal ash plants for `Topwhite' plants in 50% coal ash media. Mean per plant dry weights of all three cultivars were increased over those of control plants in both 25% and 50% coal ash media. Media pH increased with increase in ash, while EC tended to decrease. Media available Ca increased with ash increase, while Mg decreased and the same pattern was noted for leaf tissue Ca and Mg. This was probably due to release of Ca from the ash, which contains about 10% Ca oxides. Tissue levels of Ca and Mg were within acceptable ranges; however, K levels also declined in plant tissue to suboptimal levels with plants in ash media.

scholarly journals PERFORMANCE OF `NELLIE WHITE' EASTER LILIES IN ROOT MEDIA CONTAINING COAL BOTTOM ASH

HortScience ◽  
1995 ◽  
Vol 30 (2) ◽  
pp. 189d-189
Author(s):  
Bradford C. Bearce ◽  
Lenka Smuta
Keyword(s):  
Electrical Conductivity ◽  
Bottom Ash ◽  
Leaf Tissue ◽  
Lilium Longiflorum ◽  
Stem Length ◽  
Flower Bud ◽  
Coal Bottom Ash ◽  
Root Media ◽  
Plant Flower ◽  
Lower Stem

Easter lilies (Lilium longiflorum Thunb. `Nellie White') were forced in root media composed of 1 peat: 1 vermiculite (v/v) mixed with coal bottom ash (CBA) at rates of 0%, 25%, 50%, 75%, or 100% CBA. Lilies in all levels of CBA were equal in mean per plant flower bud numbers, fresh and dry weights, and numbers of yellow or brown lower stem leaves. Lilies in 100% CBA were significantly lower in mean stem length than plants in 0% or 50% CBA. Plants in 100% CBA required more frequent irrigation than plants in all other media. Media pH and solution electrical conductivity increased with increase in percent CBA. Analysis of leaf tissue showed no difference in nutrient levels between plants in 0% or 100% CBA.

Dry Weight Partitioning among Roots, Shoot Bottoms and Tops, and Leaves of Hydrangea macrophylla Cuttings Rooted in Coal Bottom Ash or Peat: Perlite Media Containing Four Levels of Dolomitic Limestone

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 465d-465 ◽  
Author(s):  
Dharmalingam S. Pitchay ◽  
Susan Myers ◽  
Bradford C. Bearce
Keyword(s):  
Bottom Ash ◽  
Leaf Tissue ◽  
Dry Weight ◽  
Coal Bottom Ash ◽  
Hydrangea Macrophylla ◽  
The Media ◽  
Four Levels ◽  
Ph Range ◽  
Air Capacity ◽  
Total Fresh Weight

Terminal tip cuttings of hydrangea (Hydrangea macrophylla Thunb. `Blaumeise Lace Cap') were rooted in 100% coal bottom ash (CBA) sieved through 2-mm mesh or 1 peat: 1 perlite (v/v) containing 0, 3, 6, or 18 g·L–1 of dolomitic lime on 13 July 1997. Rooting performance of the terminal cuttings was monitored weekly for 5 weeks. The pH values were 7.0–7.8 (100% CBA media), 6.3–6.9 (peat:perlite, 18 g·L–1 lime), 6.0–6.5 (peat:perlite, 6 g·L–1 lime), 4.2–5.2 (peat: perlite, 3 g·L–1 lime), and 3.6–5.2 (peat:perlite, 0 g·L–1 lime). Leaf tissue Ca was higher in 100% CBA than that in peat:perlite media after the 2nd week, implying that uptake from the media may have occurred. Total fresh weight of the rooted cuttings increased significantly over 5 weeks and, at week 5, the highest cutting fresh weights were in peat:perlite media with 3, 6, or 18 g·L–1 of lime. No significant differences in shoot tip fresh and dry weights were observed among peat:perlite media, but these were reduced in 100% CBA. Root dry weight and root quality indices were greater in peat:perlite media with 3, 6, and 18 g·L–1. The poorer rooting of hydrangea cuttings in CBA was attributed to the supraoptimal pH range and the substantially lower air capacity (5.25% by volume) compared to that of peat:perlite (15.1%). The superior rooting in peat:perlite media with lime may have been due to the favorable pH range.

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