scholarly journals MARKETS OF ORNAMENTAL PLANTS AND POSTHARVEST PHYSIOLOGY IN CUT FLOWERS

2015 ◽  
Vol 3 (0) ◽  
pp. 36-39
Author(s):  
Kenji Yamane
Keyword(s):  
Ornamental Plants ◽  
Cut Flowers ◽  
Postharvest Physiology

scholarly journals 615 Colored Shade Nets can Manipulate the Vegetative Growth and Flowering Behavior of Ornamental Plants

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 503C-503 ◽  
Author(s):  
M. Oren-Shamir ◽  
E.E. Gussakovsky ◽  
E. Shpiegel ◽  
E. Matan ◽  
I. Dory ◽  
...  
Keyword(s):  
Vegetative Growth ◽  
Ornamental Plants ◽  
Lupinus Luteus ◽  
Cut Flowers ◽  
Light Spectrum ◽  
Vegetative Development ◽  
Short Side ◽  
Agricultural Performance ◽  
Ruscus Hypoglossum ◽  
Stimulation Of

Many green-decorative branches (“Greens”) and cut flowers are commercially grown under shade nets, for both the reduction of the natural intercepted sunlight as well as physical protection. The most commonly used are black nets, which do not affect the visible light spectrum. In the work presented here we have studied the effects of shade nets of varying optical properties on the vegetative and flowering responses of ornamental plants, searching for nets that will specifically induce a desired behavior, thus gaining benefits in addition to the mere shading. Nets of different transmittance spectra, light scattering, reflectance and thermal properties are being studied for their effect on the vegetative growth of several Greens: Pittosporum variegatum, Ruscus hypoglossum, and Leather-leaf fern. The knitting density of all nets has been adjusted to have the same percent shading in the PAR (photosynthetically active radiation) range of the spectrum for all nets investigated. Experiments were carried out in commercial plots. Data were collected for microclimate, physiological and horticultural parameters. The main results obtained so far: i) pronounced stimulation of the vegetative growth under the Red net; ii) dwarfing by the Blue net; iii) the Grey net markedly enhanced branching, yielding “bushy” plants with short side branches; iv) the reflective, thermal net (Aluminet®) enhanced side, long branching (in Pittosporum). Recently we have applied a similar approach to cut flowers such as Lupinus luteus, Lisianthus eustoma, and Dubium ornitugalum, and obtained dramatic effects of some of the nets on both the vegetative development and flowering behavior. The results to be presented, suggest that sophistication of the use of shade nets can lead to better agricultural performance.

scholarly journals MASTER GARDENER PERCEPTION OF GENETICALLY MODIFIED ORNAMENTAL PLANTS

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 503B-503
Author(s):  
William Klingeman ◽  
Charles Hall ◽  
Beth Babbit
Keyword(s):  
Genetically Modified ◽  
Ornamental Plants ◽  
Environmental Benefits ◽  
Cut Flowers ◽  
Master Gardener ◽  
Plant Introductions ◽  
Green Industry ◽  
Gm Foods ◽  
Gm Plants ◽  
Gm Plant

Though genetically modified (GM) ornamental cut flowers are already available commercially, U.S. academics and Green Industry growers have not assessed consumer perception about GM ornamental plants for landscape use. Because we must make inferences from studies of GM foods, we risk misunderstanding and alienating stakeholders and clients. If we misjudge the end-user, we jeopardize the market for future GM ornamental plant introductions. To address this gap, we surveyed Tennessee Master Gardener Volunteers in 2004. Respondents (n = 607) revealed that concern and belief about GM ornamental plants parallel U.S. expectation about GM foods. Average Master Gardener volunteer responses predict that GM ornamental plants would provide only slight benefits to both the environment and human health once used in the landscape. Compared with non-GM plants, GM ornamental plants are expected to be about the same or less invasive in the landscape. While all types of GM ornamental plants were expected to provide slight benefits, plant types were perceived differently with male respondents expecting perennials to yield the most environmental benefits and females indicating grasses and turf. Men and women also differed in their relative acceptance of GM ornamental plants, if genes were added from different types of organisms to achieve a genetic transformation of an ornamental shrub. Our results suggest that academic outreach and Green Industry marketing to promote new GM plant products should emphasize attributes of benefit, rather than GM transformation processes. Regardless, about 73% of TN Master Gardener respondents reported interest in buying GM ornamental plants if sold commercially, but the majority advocated a requirement for GM plant product labeling at point-of-sale.

scholarly journals Genotypic Variation in the Postharvest Performance and Ethylene Sensitivity of Cut Rose Flowers

HortScience ◽  
2010 ◽  
Vol 45 (5) ◽  
pp. 790-796 ◽  
Author(s):  
Andrew J. Macnish ◽  
Ria T. Leonard ◽  
Ana Maria Borda ◽  
Terril A. Nell
Keyword(s):  
Natural Variation ◽  
No Reduction ◽  
Genotypic Variation ◽  
Ornamental Plants ◽  
Postharvest Quality ◽  
Vase Life ◽  
Cut Flowers ◽  
Flower Opening ◽  
Ethylene Sensitivity ◽  
Duration Of Protection

Natural variation in the postharvest quality and longevity of ornamental plants can often be related to differences in their response to ethylene. In the present study, we determined the postharvest performance and ethylene sensitivity of cut flowers from 38 cultivated Hybrid Tea rose genotypes. The vase life of the cultivars varied considerably from 4.5 to 18.8 days at 21 °C. There was also substantial variation in the degree of flower opening among genotypes. Exposure to 1 μL·L−1 ethylene for 24 h at 21 °C reduced the longevity of 27 cultivars by 0.8 to 8.4 days (18% to 47%) by accelerating petal wilting and abscission. Ethylene treatment also significantly reduced rates of flower opening in 17 sensitive cultivars and in six cultivars that showed no ethylene-related reduction in vase life. Five cultivars showed no reduction in vase life or flower opening in response to ethylene exposure. Pre-treating stems with 0.2 mm silver thiosulfate liquid or 0.9 μL·L−1 1-methylcyclopropene (1-MCP) gas for 16 h at 2 °C reduced the deleterious effects of ethylene. The release of 1-MCP from two sachets containing EthylBloc™ into individual shipping boxes also protected flowers against ethylene applied immediately after a 6-d commercial shipment. The duration of protection afforded by the 1-MCP sachet treatment was greatest when flowers were maintained at low temperature.

scholarly journals Analisis Kebutuhan Air dan Finansial Tanaman Krisan (Chrysanthemum Sp.) dengan Metode Guludan dan Pot

2018 ◽  
Vol 7 (1) ◽  
pp. 193
Author(s):  
I Gede Ngurah Salpatira Widayana ◽  
I Wayan Tika ◽  
I Made Anom S. Wijaya
Keyword(s):  
Ornamental Plants ◽  
Water Requirement ◽  
Plant Water ◽  
Cut Flowers ◽  
Water Requirements ◽  
Financial Feasibility ◽  
Daily Water ◽  
The Difference

ABSTRAK Bunga krisan (Chrysanthemum sp.) merupakan salah satu tanaman hias yang diproduksi sebagai bunga potong. Budidaya bunga krisan biasanya menggunakan metode  di guludan, namun saat ini sudah berkembang budidaya krisan menggunakan metode pot. Berkembangnya dua metode budidaya mengakibatkan adanya perbedaan kebutuhan air tanaman dan finansial pada masing-masing metode. Oleh karena itu perlu dilakukan penelitian untuk menganalisis kebutuhan air tanaman dan kelayakan finansial dari masing-masing metode. Tujuan penelitian ini adalah untuk: (1) menentukan perbedaan tingkat kebutuhan air pada budidaya bunga krisan menggunakan metode guludan  dan metode pot, dan (2) menganalisis kelayakan finansial budidaya tanaman krisan dengan kedua metode tersebut. Perlakuan penelitian ini adalah : Budidaya bunga krisan dengan metode guludan dan budidaya bunga krisan dengan metode pot. Pada masing-masing metode dianalisis kebutuhan air tanaman (ETc) dan kelayakan finansialnya. Analisis kelayakan finansial yang digunakan dalam penelitian ini adalah NPV, IRR dan BCR. Total kebutuhan air tanaman krisan dengan metode guludan dan pot masing-masing adalah 1056,72 ml/tanaman dan 866,64 ml/ tanaman, sedangkan rata-rata kebutuhan air harian masing-masing 19,57 ml/hari, dan 16,05 ml/hari. Hasil kelayakan finansial dari penelitian ini adalah NPV pada metode guludan sebanyak Rp. 5.687.537,35 lebih kecil dari metode pot yang bernilai Rp. 12.627.709,99. IRR dari metode guludan dengan persentase 15% lebih kecil dari metode pot yang persentasenya 18%. Analisis BCR dari metode guludan memperoleh hasil sebesar 1,51 yang mana lebih kecil dari metode pot yang memperoleh hasil sebesar 1,63. Walaupun kedua metode budidaya bunga krisan dikatakan layak, namun metode pot lebih menguntungakan  dari pada metode guludan dari segi finansial.   Kata kunci : kebutuhan air tanaman, analisis finansial, krisan. ABSTRACT   Chrysanthemum flower (Chrysanthemum sp.)  are one of the ornamental plants produced as cut flowers. Chrysanthemum cultivation usually uses the bund method, but nowadays chrysanthemum cultivation has develoved using the pot method. The development of two methods of cultivation resulted in differences in the plant water requirements and financial in each methods. Therefore it is necessary to conduct research to analyze the plant water requirement and the financial feasibility of each method. The purpose of this research are to : (1) determine the difference of water requirement level on the cultivation of chrysanthemum flower using the method of bund and pot, and (2) analyze the finance feasibility on cultivation of chrysanthemum flower with both methods. The treatment of this research are : cultivation of chrysanthemum flower with bund method and cultivation of chrysanthemum flower with pot method. In each method analyzed plant water requirements (ETc) and financial feasibility. The analysis of financial feasibility used in this research is NPV, IRR and BCR.  Total requirement of chrysanthemum flower water with bund and pot method are 1056,72 ml/plant and 866,64 ml/plant, while the average daily water requirement is 19,57 ml/day, and 16,05 ml/day. The financial feasibility result of this are NPV on bund method as much as Rp. 5.687.537,35 is smaller than the pot method which is worth Rp. 12.627.709,99. IRR from the bund method with percentage 15% smaller than pot method with the percentage of 18%. The BCR analysis of the bund method yields 1.51 which is smaller than the pot method which yields 1.63. although both methods of chrysanthemum flower cultivation are said to be feasible, but the pot method is more advantageous than the method of bunds in financial terms. Keywords : plant water requirement, finansial analize, chrysanthemum flower.

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