scholarly journals Cut foliage: potentiality of native Argentine ferns as new ornamental crops

2021 ◽  
Vol 27 (4) ◽  
pp. 566-574
Author(s):  
Gabriela Facciuto ◽  
Maria Julia Pannuzio ◽  
Analía Puerta ◽  
Marcela Inés Sanchez

Abstract The cut foliage constitutes an important part of the floricultural production since it represents a fundamental element in flower arrangements, and ferns are the complementary elements most used by florists. In Argentina, there is native material that has not been yet domesticated and could have suitable characteristics for foliage use. The objective of the work was to determine the potential use of 15 native ferns as cut foliage through quality parameters and vase life, generating a scoring system that allows a classification list. Morphological descriptors such as petiole length, length and width of the blade, planes in which the fronds are arranged, brightness, consistency, abundance of spores and presence of pests were taken into account. Also, the production of fronds of six selected species with good scores was recorded. The results showed that it is feasible to consider the commercial production of Pityrogramma calomelanos, Niphidium crassifolium, Campyloneurum nitidum, Blechnum austrobrasilianum and Pteris denticulata by the quantity of fronds obtained and their quality, represented by their size. Campyloneurum nitidum excelled for its vase life of more than 26 days and frond production of 273.61 fronds m-2 at second year cultivation. Pteris denticulata produces 179.44 fronds m-2 but vase life was only 7 days.

2017 ◽  
Vol 23 (1) ◽  
pp. 07 ◽  
Author(s):  
Érica Barroso de Morais ◽  
Ana Cecilia Ribeiro de Castro ◽  
Tiago Freitas Silva ◽  
Nazaré Suziane Soares ◽  
Jocilene Pinheiro da Silva

The Brazilian flora has a large number of species with ornamental potential. These species are poorly recognized or even completely unexplored. The objective of this study was to evaluate the potential use of four accessions belonging to the species of Anthurium plowmanii, A. raimundii, A. bonplandii and A. Affine for cutting foliage. The accessions from Embrapa Germplasm Bank of Tropical flowers were evaluated for 21 morphological and phenological characteristics and post-harvest longevity. The ornamental characterization was based on the evaluation of this data and florist acceptance as well. The accessions presented differences in almost all the characteristics related to the morphology of the inflorescence and the leaf. Some characteristics such: fruit color, petiole, spadix, and spathe length, are highly variable within the species and depend on the developmental stage. Some characters like petiole length and inflorescence position are particularly important as indicators for the use as cut foliage. The plants have slow development as typical from members of this family and and the production of leaves per year ranged between 6.6 (A. plowmanii) to 10.5 (A. bonplandii), which might be increased with the improvement of cultivation aspects, with an emphasis on spacing, plant management and fertilization. The leaves of Anthurium plowmanii, A. raimundii, A. bonplandii and A. affine present high postharvest durability and great potential as cut foliage, possessing florist acceptance as well.


Author(s):  
Serhat Ayas

This trial was realized in the greenhouses of Uludağ University Yenişehir Vocational School between 2009 and 2010 to investigate effects of water deficit on yield and quality parameters of onion during four crop growth stages. In this trial, fourteen irrigation treatments in four growth periods (establishment, vegetative, yield formation and ripening) of onion (Allium cepa L E.T Grano.502) were constituted and the yield and quality parameters found from these treatments were evaluated. The layout of the experiment was a completely randomized block design with three replications for each of the fourteen irrigation treatments tested. According to the content of the treatments, the irrigation amount water applied to the plants varied between 0 and 436 mm in the first year, and between 0 and 448 mm in the second year. Water consumption of onion in the first year ranged between 205 and 496 mm and in the second year ranged between 210 and 502 mm. Yield, bulb weight, diameter, height and dry matter ratio were determined statistically significant. In 2009 and 2010 years, the maximum yield were found as 52.2 t ha-1 and 52.4 t ha-1 in E100V100Y100R100 treatments, while the minimum yield were found as 0.8 t ha-1 and 0.5 t ha-1 in the E0V0Y0R0 treatments, respectively. Water- yield relationship factors (ky) in 2009 and 2010 years were found as 1.03 and 1.04, respectively. The maximum WUE and IWUE values were obtained from establishment and ripening periods. Establishment and ripening periods may be suggested as the maximum efficient irrigation periods for the onion applied with drip irrigation under unheated greenhouse conditions.


2017 ◽  
Vol 12 (Special-3) ◽  
pp. 692-696
Author(s):  
ASMA SIDDIQUA ◽  
K. SWARAJYA LAKSHMI ◽  
R. NAGARAJU ◽  
D. SRINIVASA REDDY ◽  
S. SHAHEDA

2018 ◽  
Vol 44 (2) ◽  
pp. 299-307
Author(s):  
Burhan Ozturk ◽  
Kenan Yildiz ◽  
Yakup Ozkan ◽  
Kemal Kilic

This study was conducted to determine the effects of increasing aminoethoxyvinylglycine (AVG) concentrations on pre-harvest drop and fruit quality parameters of ‘Braeburn’ apples. Results revealed that AVG treatments increased the fruit removal force and significantly decreased pre-harvest drops compared to control treatment. AVG was found to be more effective in controlling pre-harvest drops than naphthaleneacetic acid (NAA). There were significant differences among AVG doses with regard to preharvest drop rates. The lowest ratio of pre-harvest drop was observed in 400 mg/l AVG treatment. All AVG doses decreased ethylene biosynthesis. Inhibition of ethylene biosynthesis was higher in 300 and 400 mg/l AVG treatments than the other AVG treatment. AVG retarded fruit ripening of ‘Braeburn’ apples. Measurements, performed at different dates of ripening process, revealed higher flesh firmness values for AVG-treated fruits than the control. Starch degradation was delayed by AVG treatments. Effects of AVG on fruit peel color varied with years. While significant effects of AVG treatments on peel color were not observed in the first year, especially higher AVG doses significantly increased L* values and hue angles in the second year. AVG treatments also significantly increased fruit mass in both years. Significant changes in fruit geometric diameters were not observed with AVG treatments, except for 300 mg/l AVG treatment of second year.


2016 ◽  
Vol 2 (1) ◽  
pp. 23-26 ◽  
Author(s):  
Aimon C Miranda ◽  
Erini S Serag-Bolos ◽  
Timothy Dy Aungst ◽  
Rowshan Chowdhury

The objectives of this workshop were to characterise the use of mobile health (mHealth) devices among second year pharmacy students, discover perception of their potential use in practice and obtain workshop feedback. The workshop consisted of two sessions. The first session introduced the concept of mHealth and allowed for hands-on experience with wireless mHealth devices such as blood pressure cuffs, scales and smart body analysers, personal health devices and glucometers. The second session consisted of a facilitated discussion and lecture that addressed these concepts. Students completed a preworkshop and postworkshop survey. 106 students completed the preworkshop survey and 96 students completed the postworkshop survey. 22% of the class owned an mHealth device and a majority of students reported increased knowledge of mobile health devices due to this simulation. The workshop was successful in introducing mHealth technology. The change in students’ perception that such devices could be useful in practice or easily incorporated could be due to technical difficulties and cost of the devices.


Author(s):  
Rahul Kumar ◽  
Rama Kumari ◽  
Chandi Prasad ◽  
Akash Deep ◽  
Neetu Singh ◽  
...  

Abstract This research work was carried out from July 2018 to June 2019. WQI method was utilized to examine the seasonal changes in water quality that can indicate the potential use of water in the future. Water samples were tested from three locations along the Mandakini River. Fourteen physical and chemical parameters were analyzed. All water quality parameters were inside the admissible furthest reaches of the WHO for drinking water except turbidity, especially in the monsoon season. Twelve taxa of macroinvertebrates (Philopotamus sp., Laptophlebia sp., Isoperla sp., Diploperla sp., Tabanus sp., Hydropsyche sp., Baetis sp., Glossosoma sp., Heptagenia sp., Ephemerella sp., Psephenus sp., and Protandrous sp.) were identified in the Mandakini River. The fundamental goal of this investigation was to evaluate the seasonal effects on benthic macroinvertebrate diversity from the physicochemical variables of the Mandakini River. The study also affirmed that tourist-generated waste disposal, poisonous and dangerous chemicals from farming are the key components liable for the deterioration of water quality during the monsoon season.


HortScience ◽  
2009 ◽  
Vol 44 (3) ◽  
pp. 702-706 ◽  
Author(s):  
Diego A. Mata ◽  
Javier F. Botto

The phytochromes, a family of photoreceptors that maximally absorb red (R) and far-red (FR) light, play an important role in defining the architecture of the plant and consequently its value in the market. In this work, we evaluated the manipulation of light quality as an alternative to the use of plant growth regulators (PGRs) to produce poinsettia plants (Euphorbia pulcherrima Willd. ex Klotzsch) without affecting commercial quality parameters. ‘Freedom Red’ poinsettia plants were cultivated in two light environments characterized by different R/FR ratios in combination with or without one application of PGR. We used a photoselective film that significantly reduced the FR component of the light and a transparent film to obtain high and low R/FR ratios (5.7 and 1.1, respectively). Plants cultivated under a high R/FR ratio were shorter and more compact than those grown under transparent film. Other quality characters like bract and leaf area, dry weight, stem diameter, number of lateral branches, and plant width did not differ significantly between light treatments. Flowering time was slightly delayed in plants grown under a high R/FR ratio compared with those cultivated under the control treatment. Additive effects were detected between light quality and PGR factors indicating that light quality manipulation is an alternative strategy to reduce or to replace the use of PGRs in commercial production systems that usually require several PGR applications.


2012 ◽  
pp. 351-356 ◽  
Author(s):  
B.T. Favero ◽  
Q.A.C. Carmello ◽  
G.M. Dias
Keyword(s):  

Author(s):  
Lynette Morgan

Abstract Along with new types of protected cropping structures, materials and technology, the range and diversity of hydroponic crops grown are also expanding. While the greenhouse mainstays of nursery plants, tomatoes, capsicum, cucumber, salad vegetables and herbs will continue to expand in volume, newer, speciality and niche market crops are growing in popularity. These include new cut flower species, potted plants and ornamental crops, and a growing trend in the commercial production of medicinal herbs using high-technology methods such as aeroponics. Exotic culinary herbs such as wasabi, dwarf fruiting trees and spices such as ginger and vanilla are now grown commercially in protected cropping structures, while many home gardeners continue to take up hydroponics and protected cropping as both a hobby and a means of growing produce. Protected cropping and hydroponic methods will further their expansion into hostile climates which never previously allowed the production of food.


2011 ◽  
Vol 38 (7) ◽  
pp. 614 ◽  
Author(s):  
Jilushi W. Damunupola ◽  
Kamani Ratnayake ◽  
Daryl C. Joyce ◽  
Donald E. Irving

Early desiccation limits the vase life of Acacia cut flowers and foliage and may be attributable to poor hydraulic conductivity (Kh) of the cut stems. Acacia holosericea A.Cunn. ex G.Don has been adopted as the test species to investigate the postharvest water relations of the genus Acacia. To understand potential constraints on Kh, xylem conduits in cut A. holosericea stems were anatomically characterised by light and scanning and transmission electron microscopy. Vessels with simple perforation plates and tracheids were the principal water conducting cells. Bordered vestured intervessel pits were present in xylem vessel elements. The majority of conduits (89%) were short at 1–5 cm long. Only 2% were 15–16 cm in length. Mean xylem conduit diameter was 77 ± 0.9 µm and the diameter profile showed a normal distribution, with 29% of diameters in the range of 70–80 µm. Simple perforation plates can offer relatively low resistance to water flow. On the other hand, bordered vestured pits and short xylem conduits can confer comparatively high resistance to water flow. Overall, the presence of bordered vestured pits, together with a high proportion of short xylem conduits and high stomatal densities (232 ± 2 mm–2) on unifacial phyllodes, could contribute to early dehydration of A. holosericea cut foliage stems standing in vase water. Further research will relate these anatomical features with changes in Kh and transpiration of cut foliage stems.


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