HISTO-ANATOMICAL�INVESTIGATION�ON�ENDEMIC�CAMPANULA�CARPATICA�JACQ

2012 ◽  
Author(s):  
Irina�Neta Gostin
Keyword(s):  
Campanula Carpatica

scholarly journals First Report of Sclerotinia sclerotiorum on Campanula carpatica and Schizanthus × wisetonensis in Italy

Plant Disease ◽  
2002 ◽  
Vol 86 (1) ◽  
pp. 71-71
Author(s):  
A. Garibaldi ◽  
A. Minuto ◽  
M. L. Gullino
Keyword(s):  
United States ◽  
Sclerotinia Sclerotiorum ◽  
Ornamental Plants ◽  
Soil Surface ◽  
The United States ◽  
First Report ◽  
Potted Plants ◽  
Initial Symptoms ◽  
Stem Necrosis ◽  
Campanula Carpatica

The production of potted ornamental plants is very important in the Albenga Region of northern Italy, where plants are grown for export to central and northern Europe. During fall 2000 and spring 2001, sudden wilt of tussock bellflower (Campanula carpatica Jacq.) and butterfly flower (Schizanthus × wisetonensis Hort.) was observed on potted plants in a commercial greenhouse. Initial symptoms included stem necrosis at the soil line and yellowing and tan discoloration of the lower leaves. As stem necrosis progressed, infected plants growing in a peat, bark compost, and clay mixture (70-20-10) wilted and died. Necrotic tissues were covered with whitish mycelia that produced dark, spherical (2 to 6 mm diameter) sclerotia. Sclerotinia sclerotiorum was consistently recovered from symptomatic stem pieces of both plants disinfested for 1 min in 1% NaOCl and plated on potato dextrose agar amended with streptomycin sulphate at 100 ppm. Pathogenicity of three isolates obtained from each crop was confirmed by inoculating 45- to 60-day-old C. carpatica and Schizanthus × wisetonensis plants grown in containers (14 cm diameter). Inoculum that consisted of wheat kernels infested with mycelia and sclerotia of each isolate was placed on the soil surface around the base of previously artificially wounded or nonwounded plants. Noninoculated plants served as controls. All plants were maintained outdoors where temperatures ranged between 8 and 15°C. Inoculated plants developed symptoms of leaf yellowing, followed by wilt, within 7 to 10 days, while control plants remained symptomless. White mycelia and sclerotia developed on infected tissues and S. sclerotiorum was reisolated from inoculated plants. To our knowledge, this is the first report of stem blight of C. carpatica and Schizanthus × wisetonensis caused by S. sclerotiorum in Italy. The disease was previously observed on C. carpatica in Great Britain (2) and on Schizanthus sp. in the United States (1). References: (1) D. F. Farr et al. Fungi on Plants and Plant Products in the United States. The American Phytopathological Society, St. Paul, MN, 1989. (2) J. Rees. Welsh J. Agric. 1:188, 1925.

Influence of late fertilization in the field on forcing and quality of potted Campanula carpatica

1997 ◽  
Vol 71 (3-4) ◽  
pp. 235-242 ◽  
Author(s):  
Lars G. Dinesen ◽  
A.Skytt Andersen ◽  
Margrethe Serek
Keyword(s):  
Campanula Carpatica

scholarly journals Cold Treatment and Forcing Temperature Influence Flowering of Campanula carpatica `Blue Clips'

HortScience ◽  
1997 ◽  
Vol 32 (5) ◽  
pp. 861-865 ◽  
Author(s):  
Catherine M. Whitman ◽  
Royal D. Heins ◽  
Arthur C. Cameron ◽  
William H. Carlson
Keyword(s):  
Cell Volume ◽  
Final Height ◽  
Cold Treatment ◽  
Base Temperature ◽  
Degree Days ◽  
Flower Buds ◽  
Flower Bud ◽  
The Relationship ◽  
Calculated Average ◽  
Campanula Carpatica

The influence of cold treatments on flowering in Campanula carpatica Jacq. `Blue Clips' was determined. Plants with 10 to 12 nodes (P1) and 12 to 16 nodes (P2), in 128-cell (10-mL cell volume) and 50-cell (85-mL cell volume) trays, respectively, were stored at 5 °C for 0, 2, 4, 6, 8, 10, 12, or 14 weeks under a 9-hour photoperiod. They then were transplanted and forced in a 20 °C greenhouse under a 9-hour photoperiod with a 4-hour night interruption (NI) (2200 to 0200 hr). Time to visible bud and to flowering in P1 decreased slightly as the duration of cold treatment increased. Flowering was hastened by ≈10 days after 14 weeks at 5 °C. Cold treatments had no significant effect on time to visible bud or flower in P2. The number of flower buds on P1 did not change significantly in response to cold treatments, while flower bud count on P2 increased by up to 60% as duration of cold treatments increased. Final height at flowering of both ages decreased 10% to 20% with increasing duration of cold exposure. To determine the relationship between forcing temperature and time to flower, three plant sizes were forced under a 9-hour photoperiod with a 4-hour NI (2200 to 0200 hr) at 15, 18, 21, 24, or 27 °C. Plants flowered more quickly at higher temperatures, but the number and diameter of flowers were reduced. Days to visible bud and flowering were converted to rates, and base temperature (Tb) and thermal time to flowering (degree-days) were calculated. Average Tb for forcing to visible bud stage was 2.1 °C; for forcing to flower, 0.0 °C. Calculated degree-days to visible bud were 455; to flower, 909.

scholarly journals First Report of Rhizoctonia Crown Rot on Carpathian Bellflower (Campanula carpatica) in Northern Italy

Plant Disease ◽  
2018 ◽  
Vol 102 (6) ◽  
pp. 1179-1179 ◽  
Author(s):  
A. Garibaldi ◽  
G. Gilardi ◽  
D. Bertetti ◽  
S. Franco Ortega ◽  
M. L. Gullino
Keyword(s):  
Northern Italy ◽  
Crown Rot ◽  
First Report ◽  
Campanula Carpatica

Биологические особенности редкого вида Campanula carpatica Jacg. в условиях культуры

2019 ◽  
pp. 42-48
Author(s):  
Ирина Нагимовна Аллаярова ◽  
Антонина Анатольевна Реут
Keyword(s):  
Campanula Carpatica

Использование растений естественной флоры в зеленом строительстве позволяет не только расширить ассортимент цветочно-декоративных растений, но и является одним из путей изучения и сохранения биоразнообразия. Исследование биологических особенностей редкого вида Campanula carpatica Jacg. проведено в условиях Башкирского Предуралья в 2007 – 2017 гг. Подробно изучен онтогенез за 9-летний период. Выявлено, что он проходит по неполночленному типу, т.е. сенильный период у C. carpatica не выражен. Показано, что индикаторными признаками возрастных состояний являются: для проростков — наличие семядолей и 1-го листа; для ювенильных особей — 2 – 4 листа ювенильного типа, 1-й этап формирования первичного куста, образование придаточных корней в нижних узлах главного побега; для имматурных — отмирание1-го листа и семядолей, втягивание гипокотиля в землю; для виргинильных — втягивание базальной части главной оси стебля в землю. У данного вида семенная продуктивность является высокой — 24,5 ± 0,7 тыс. семян/растение. Свежесобранные семена не имеют периода покоя. Для повышения всхожести семян, хранившихся около 4 лет, наиболее перспективным методом является использование переменных температур и препарата ГУМИ-20. В компонентном составе надземных органов C. carpatica обнаружен богатый набор нутриентов — аминокислоты, протеины, сахара, макро- и микроэлементы. Вид C. carpatica отнесен к высокоустойчивым культурам. Растения интенсивно размножаются, часто образуют самосев, способны к самовозобновлению, а иногда и расширению занимаемой площади. Вид перспективен для озеленения населенных пунктов в лесостепной зоне Башкирского Предуралья.

scholarly journals Flowering of Herbaceous Perennials under Various Night Interruption and Cyclic Lighting Treatments

HortScience ◽  
1998 ◽  
Vol 33 (4) ◽  
pp. 672-677 ◽  
Author(s):  
Erik S. Runkle ◽  
Royal D. Heins ◽  
Arthur C. Cameron ◽  
William H. Carlson
Keyword(s):  
Plant Height ◽  
Dark Period ◽  
Relative Effectiveness ◽  
Cold Treatment ◽  
Echinacea Purpurea ◽  
Herbaceous Perennials ◽  
Long Day ◽  
Incandescent Lamps ◽  
Lighting Regimen ◽  
Campanula Carpatica

Six long-day species of herbaceous perennials were grown under six night-interruption (NI) photoperiod treatments to determine their relative effectiveness at inducing flowering. Photoperiods were 9-hour natural days with NI provided by incandescent lamps during the middle of the dark period for the following durations: 0.5, 1, 2, or 4 hours; 6 minutes on, 54 minutes off for 4 hours (10% or 6/54 cyclic lighting); or 6 minutes on, 24 minutes off for 4 hours (20% or 6/24 cyclic lighting). For five species, the experiment was repeated with more mature plants; for the sixth, Rudbeckia fulgida Ait. `Goldsturm', following a cold treatment of 8 weeks at 5 °C. The species generally showed a quantitative flowering response to the NI duration until a saturation duration was reached; as the length of the uninterrupted night break increased, flowering percentage, uniformity, and number and plant height increased and time to flower decreased. Minimum saturation durations of NI were 1 hour for Coreopsis grandiflora Hogg ex Sweet `Early Sunrise' and Hibiscus moscheutos L. `Disco Belle Mixed', 2 hours for Campanula carpatica Jacq. `Blue Clips' and Coreopsis verticillata L. `Moonbeam', and 4 hours for unchilled R. fulgida `Goldsturm'. Echinacea purpurea Moench `Bravado' flowered similarly across all lighting treatments. The 6/24 cyclic lighting regimen induced flowering comparable to that under a continual 4-hour NI for four of the six species and the cold-treated R. fulgida `Goldsturm'. Flowering under the 6/54 regimen was generally incomplete, nonuniform, and delayed compared to that under saturation duration treatments. Three of five species flowered earlier when more mature plants were placed under the NI treatments. Cold-treated R. fulgida `Goldsturm' flowered more rapidly than unchilled plants and the saturation duration of NI decreased to 1 hour.

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