scholarly journals Water Conservation in Kalanchoe blossfeldiana in Relation to Carbon Dioxide Dark Fixation

1975 ◽  
Vol 55 (3) ◽  
pp. 532-535 ◽  
Author(s):  
George G. Zabka ◽  
S. N. Chaturvedi
Keyword(s):  
Carbon Dioxide ◽  
Water Conservation ◽  
Kalanchoe Blossfeldiana ◽  
Dark Fixation ◽  
Kalanchoë Blossfeldiana

RELATIONSHIPS AMONG CO2 DARK-FIXATION, SUCCULENCE, FLOWERING, AND ORGANIC ACID FORMATION IN KALANCHOE BLOSSFELDIANA VARIETY TOM THUMB

1965 ◽  
Vol 43 (4) ◽  
pp. 447-452 ◽  
Author(s):  
George G. Zabka ◽  
Edward McMahon
Keyword(s):  
Organic Acid ◽  
Acid Formation ◽  
Free Atmosphere ◽  
Time Intervals ◽  
Long Day ◽  
Free Air ◽  
Kalanchoe Blossfeldiana ◽  
Dark Fixation ◽  
Co2 Dark Fixation ◽  
Kalanchoë Blossfeldiana

Kalanchoe blossfeldiana variety Tom Thumb was treated photoperiodically in regular and CO2-free air and examined at two widely separated time intervals for interrelationships among flowering, succulence, capacity for CO2 dark-fixation, and organic acid formation. These processes and leaf thickening are all under photoperiodic control and increase with increasing numbers of short-day treatments. They also occur in a CO2-free atmosphere on 9-hour photoperiods although CO2 dark-fixation and organic acid formation are limited to the low level of the long-day treated plants at 5 weeks' time. Only CO2 dark-fixation and organic acid formation appear to be interrelated and apparently utilize respiratory CO2 if treated in a CO2-free atmosphere. This capacity to use respiratory CO2 increases with maturity of the plants. Flowering does not control the development of succulence, organic acid formation, or the capacity for CO2 dark-fixation. Likewise, capacity for dark-fixation and organic acid formation do not control flowering and can occur in vegetative Tom Thumb plants that do not exhibit appreciable succulence.

Carbon dioxide uptake by succulents

1971 ◽  
Vol 49 (8) ◽  
pp. 1520-1522 ◽  
Author(s):  
M. Holdsworth
Keyword(s):  
Carbon Dioxide ◽  
Plant Sample ◽  
Carbon Dioxide Absorption ◽  
Carbon Dioxide Uptake ◽  
Kalanchoe Blossfeldiana ◽  
Succulent Plants ◽  
Kalanchoë Blossfeldiana ◽  
Selection Of

Carbon dioxide absorption by a selection of succulent plants, was followed by a modification of Tregunna's method, in which the plant sample on absorbing the carbon dioxide from an enclosed volume of air in contact with weak bicarbonate, causes the solution's pH to change. Of the 21 species tested, 11 took up carbon dioxide in the dark: Lithops turbiniformis, Zygocactus truncatus, Bryophyllum daigremontianum, Crassula multicava, Echeveria gibbiflora, Kalanchoe blossfeldiana, Sedum confusum, S. pachyphyllum, S. rubrotinctum, S. spectabile, Aloe globuligemma. The duration of uptake varied from a few hours to the whole night (and longer). Even in those other species where uptake occurred in the daytime it started and stopped at times not immediately related to the onset of light or darkness.

First Report of Powdery Mildew of Kalanchoe blossfeldiana caused by Sphaerotheca fuliginea (Podosphaera fuliginea) in the Pacific Northwest

2003 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Dean A. Glawe ◽  
Rita Hummel ◽  
Grace Jack
Keyword(s):  
Powdery Mildew ◽  
Pacific Northwest ◽  
Sphaerotheca Fuliginea ◽  
First Report ◽  
Major Disease ◽  
The Pacific ◽  
Kalanchoe Blossfeldiana ◽  
Extension Center ◽  
Kalanchoë Blossfeldiana

Kalanchoe blossfeldiana Poelln. is a common ornamental houseplant. Although powdery mildew is a major disease of this species, there are no published reports of it in the Pacific Northwest. In August, 2002, powdery mildew was observed on six indoor K. blossfeldiana plants in an office and adjacent laboratory at the Puyallup Research and Extension Center. Accepted for publication 25 March 2003. Published 17 April 2003.

scholarly journals Uso del fertilizante (15-20-25) en la etapa de floración de Kalanchoe blossfeldiana

2017 ◽  
Vol 5 (2) ◽  
pp. 114-118
Author(s):  
Ana Cristina Noriega Lucio ◽  
Darío López Castro ◽  
Rocío Rodríguez Cabrera ◽  
Sergio Omar Nieto Rosaliano ◽  
Pablo Elorza Martínez
Keyword(s):  
Kalanchoe Blossfeldiana ◽  
El Alto ◽  
Kalanchoë Blossfeldiana

Se evaluaron 4 dosis del fertilizante 15-20-25 fueron 2, 3, 4 y 5 gramos por litro de agua más un testigo. El objetivo fue Determinar la mejor dosis de 15-20-25 para favorecer la floración de Kalanchoe blossfeldiana. Los resultados mostraron que la variable Contenido de clorofila a los 90 días el mejor tratamiento fue el No. 4, con54.95 unidades SPAD, con una diferencia significativa del tratamiento 5 que fue el testigo con 44.64. En la variable de Diámetro de tallo el tratamiento que tuvo mejor resultado fue el tratamiento 2 con 0.741 centímetro, teniendo una diferencia significativa con el testigo. En la variable de número de hojas, el Tratamiento que tuvo mayor número fue el 4 con un total de 20 hojas. En este sentido vemos que el tratamiento que funcionó de mejor manera y que obtuvo mayor contenido de clorofila, mayor diámetro de tallo y numero de hojas fue el tratamiento No. 4, con una dosis de 5 gramos por litro, donde se pudo observar plantas vigorosas de hojas gruesas y color verde obscuro por el alto contenido de nitrógeno registrado en la planta siendo además las que primero iniciaron la etapa de floración y mejor calidad de ramo floral.

scholarly journals Leaf Spot of Kalanchoe (Kalanchoe blossfeldiana) Caused by Stemphylium lycopersici

2007 ◽  
Vol 13 (2) ◽  
pp. 122-125 ◽  
Author(s):  
Jin-Hyeuk Kwon ◽  
Byoung-Ryong Jeong ◽  
Jae-Gill Yun ◽  
Sang-Woo Lee
Keyword(s):  
Leaf Spot ◽  
Stemphylium Lycopersici ◽  
Kalanchoe Blossfeldiana ◽  
Kalanchoë Blossfeldiana
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