Accumulation and biomass partition and nutrients per tropical ornamental plants grown in Ribeira Valley region

For many ornamental plants there are no fertilization tables in Brazil and growers use, inappropriately, the same fertilizing for different species of ornamental plants. A first step is to know the nutrient uptake by these plants. The objective of this study was to determine the concentration and to characterize the accumulation of nutrients of the main tropical ornamental plants grown in the Ribeira Valley region, São Paulo state, Brazil: Clusia fluminensis, Dracaena marginata, Dypsis lutescens, Gardenia jasminoides, Ixora coccinea, Ligustrum sinense, Murraya paniculata, Podocarpus macrophyllus, Rhapis excelsa e Viburnum prunifolium. The plants were donated by local farmers and after sorting, these were divided into roots, stems and leaves, and, subsequently, washed, dried and was determined their concentration of nutrients. The experimental design was randomized using four repetitions and the species of ornamental plants were considered as treatments. The results were submitted to analysis of variance and compared by Scott-Knott test (5%). For the macronutrient, the greater accumulation of N was in Podocarpus macrophyllus. The Clusia fluminensis tree had the highest calcium and magnesium accumulations. The largest amounts of P and S were accumulated in Rhapis excelsa and Podocarpus macrophyllus. The greatest accumulation of K was in Rhapis excelsa, Dracaena marginata, Podocarpus macrophyllus, Murraya paniculata and Ixora coccinea. Smaller amounts of macronutrients were accumulated in Dypsis lutescens and Viburnum prunifolium. As for the macronutrients, the largest accumulation of Cu was observed in broad leaf Rhapis excelsa. Clusia fluminensis tree and Dracaena marginata accumulated the largest amounts of Mn. Regarding the Zn, Rhapis excelsa, Dracaena marginata and Ligustrum sinense were plants with higher accumulation. Smaller amounts of B were accumulated in Viburnum prunifolium, Dracaena marginata and Dypsis lutescens. Ligustrum sinense, Dypsis lutescens and Ixora coccinea accumulated lower amounts of Fe in relation to others. The accumulation of nutrients by ornamental plants is very different between species and this information should be used to adjust fertilizer recommendations. Ornamental plants were grouped as demand and NPK ratio, to assist in the management of fertilizer.

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Phytophthora Species Recovered From Irrigation Reservoirs in Mississippi and Alabama Nurseries and Pathogenicity of Three New Species

Plant Disease ◽

10.1094/pdis-11-14-1197-re ◽

2015 ◽

Vol 99 (10) ◽

pp. 1390-1395 ◽

Cited By ~ 11

Author(s):

Warren E. Copes ◽

Xiao Yang ◽

Chuanxue Hong

Keyword(s):

New Species ◽

Ornamental Plants ◽

Water Source ◽

Phytophthora Species ◽

Gardenia Jasminoides ◽

Phytophthora Spp ◽

Primary Water ◽

Production Area ◽

Three New Species ◽

Test Plants

From a survey for Phytophthora spp. in containment basins at one nursery each in Alabama and Mississippi, eight species and one taxon were recovered, with Phytophthora gonapodyides dominant in cooler months and P. hydropathica in warmer months, accounting for 39.6 and 46.6% overall recovery, respectively. Among the recoveries were P. macilentosa, P. mississippiae, and P. stricta, three new species recently described from a small lake (labeled M4) that serves as a primary water source for irrigation and to feed another irrigation pond (M5) at the Mississippi nursery. Neither of ponds M4 and M5 directly receives runoff from any production area. The three new species were tested for pathogenicity with Catharanthus roseus, Gardenia jasminoides ‘August Beauty,’ Hydrangea quercifolia ‘Semmes Beauty,’ Ilex magland ‘Oakland,’ Pieris japonica ‘Mountain Snow,’ and Rhododendron × ‘Brandi Michele Raley.’ None of the three species infected any of the test plants or became established in peat or pine bark growing media. Based on the result of pathogenicity trials as well as the field observation that none of the nine Phytophthora taxa recovered from irrigation reservoirs have caused episodic disease in the nurseries, they appear to not present a high risk to ornamental plants at those nurseries.

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Saline water irrigation managements on growth of ornamental plants

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v21n11p739-745 ◽

2017 ◽

Vol 21 (11) ◽

pp. 739-745

Author(s):

Francisco I. F. Oliveira ◽

Wiliana J. F. de Medeiros ◽

Claudivan F. de Lacerda ◽

Antônia L. R. Neves ◽

Davi R. Oliveira

Keyword(s):

Saline Water ◽

Leaf Growth ◽

Ornamental Plants ◽

Sprinkler Irrigation ◽

Water Salinity ◽

Water Application ◽

Salinity Levels ◽

Ixora Coccinea ◽

Ideal Method ◽

Ornamental Species

ABSTRACT Biosaline agriculture is an option for using waters with lower quality. Thus, the objective of this study was to evaluate the growth of ornamental species under irrigation with increasing water salinity levels in two methods of water application. The study was conducted in a greenhouse, in the municipality of Fortaleza, Ceará, Brazil. The treatments were distributed in randomized blocks in split plots, with six levels of water salinity in the plots (0.6 - control, 1.2, 1.8, 2.4, 3.0 and 3.6 dS m-1), two methods of water application in the subplots (localized and sprinkler irrigation) and four ornamental species in the sub-subplots (Catharanthus roseus, Allamanda cathartica, Ixora coccinea and Duranta erecta), with four replicates. Increase in irrigation water electrical conductivity reduced the growth of the studied ornamental species. It was not possible to establish an ideal method for irrigation of ornamental species. Effects of non-localized irrigation on leaf growth were more evident in the species C. roseus and D. erecta, which showed higher specific leaf area.

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Performance of horticultural crops in Arunachal Pradesh with special reference to West Kameng District

International Journal of Agricultural Invention ◽

10.46492/ijai/2020.5.2.5 ◽

2020 ◽

Vol 5 (02) ◽

pp. 173-176

Author(s):

T. S. Mishra ◽

N. K. Mishra ◽

H. M. Singh ◽

Kadambari Mishra ◽

Joginder Singh

Keyword(s):

Rural Areas ◽

Nutritional Value ◽

Ornamental Plants ◽

International Markets ◽

Arunachal Pradesh ◽

Aromatic Plants ◽

Plant Type ◽

Medicinal And Aromatic Plants ◽

Horticultural Crops ◽

Local Farmers

The Arunachal Pradesh region is one of the richest reservoirs of genetic variability and diversity of different crops i.e. various kinds of fruits, different vegetables, spices, ornamental plants and also medicinal and aromatic plants. The diversity for horticultural crops of this region has mainly been managed by local farmers, often women. Considerable diversity exists among the regional horticultural species including variation in plant type, morphological and physiological characteristics, reactions to diseases and pests, adaptability and distribution. Apart from the nutritional value, many regional horticultural crops are used for medicinal purposes and income generating source in the rural areas. The Arunachal Pradesh of States constitutes the District of West Kameng, Tawang, East siang, East Kameng, Papum Pare, Lower Subansiri, Kurang Kumey, Upper Subansari, West siang, East siang, Upper siang, Dibang valley, Lower Dibang valley, Lohit, Anjaw, Changlang and Tirap. The raining season in this region generally commences from March and lasts till the end of September. Diverse agro–climate condition, fertile soils and abundance of rainfall offer immense scope for development in the horticulture sector. This paper is a humble effort at bringing fort the states of production of the horticultural crops of the Arunachal Pradesh, particularly West Kameng. The exportable surplus and its potentialities is also discus as well as the potential for the National/ International markets is also found out along with the problems of support for export promotion, transport facility etc.

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SUPERABSORBENT POLYMER-AMENDED MEDIA FOR CONTAINER-GROWN WOODY ORNAMENTAL CROPS

HortScience ◽

10.21273/hortsci.27.6.601g ◽

1992 ◽

Vol 27 (6) ◽

pp. 601g-602

Author(s):

B. Dehgan ◽

F. C. Almira ◽

T. H. Yeager

Keyword(s):

Irrigation Treatment ◽

Superabsorbent Polymer ◽

Irrigation Frequency ◽

Rooted Cuttings ◽

Broad Leaf ◽

Ornamental Crops ◽

Podocarpus Macrophyllus ◽

Water Holding ◽

Slow Growing ◽

Fertilizer Solution

Rooted cuttings of Photinia X fraseri and Podocarpus macrophyllus were grown in Metro-mix 500 amended with 0.0, 0.25, 0.50, 0.75, or 1.0% (w/w) Stockosorb 300, a K-based superabsorbent polymer. All 3-liter containers were irrigated with 500 ml of 100, 200, 300, or 400 ppm 20N-8.7P-16.72K Peters fertilizer solution once every 3, 6, 9, or 12 days, respectively. In comparison with the unamended media, P. X fraseri had equal or better growth (shoot and root fresh and dry weights, increased height, and branch and leaf numbers) with 3, 6, and 9 day irrigation in all but the 1 % amended medium. Growth of P. macrophyllus was not noticeably affected by the polymer amendment. This is not unexpected since P. X fraseri is a broad-leaf plant while P. macrophyllus is a slow growing, narrow-leaf conifer. Nitrogen, P, and K tissue levels for Photinia and Podocarpus decreased for the 12 day irrigation treatment regardless of amendment rate. Except for Fe, which was highest at nine day irrigation intervals, micronutrients remained more or less constant in both species. The amended media had a greater water holding capacity at termination of the project (144 and 192 days for Photinia and Podocarpus, respectively) than at the start. Thus, K-based superabsorbents may be used successfully to reduce irrigation frequency.

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Levantamento de Plantas Ornamentais e Cochonilhas (Insecta, Hemiptera) associadas em residências de Ribeirão Preto, SP.

Revista Brasileira de Horticultura Ornamental ◽

10.14295/rbho.v12i1.11 ◽

2006 ◽

Vol 12 (1) ◽

Author(s):

Claudia Fabrino Machado Mattiuz ◽

Luciana Zampollo de Oliveira Campos ◽

Alexandre De Sene Pinto

Keyword(s):

Portulaca Grandiflora ◽

Podocarpus Macrophyllus ◽

Strelitzia Reginae ◽

Ixora Coccinea

Este trabalho teve por objetivo conhecer a abundância e a freqüência de espécies ornamentais envasadas e utilizadas no paisagismo, em cinqüenta residências localizadas no município de Ribeirão Preto(SP), assim como identificar as famílias de cochonilhas associadas a essas. Foram encontradas 122 espécies ornamentais, totalizando 773 exemplares envasadas e 1.316 cultivadas nas áreas externas. A flor-de-maio, Schlumbergera truncata, foi a espécie envasada de maior abundância nas residências (1,2 planta/casa) e a jibóia, Epipremnum pinnatum, a mais freqüente (44%). Dentre as plantas utilizadas no paisagismo das residências, a espécie pingode-ouro, Duranta repens, foi a mais abundante (10,0 plantas/casa, em média) e a mais freqüente (34%) nas residências. No total, 101 plantas foram hospedeiras de cochonilhas (4,8% das plantas envasadas e para paisagismo). As cochonilhas da família Diaspididae foram as que predominaram no levantamento (5,3% das espécies envasadas e 1,7% das destinadas ao paisagismo), também ocorrendo cochonilhas das famílias Asterolecaniidae, Coccidae, Margarodidae, Ortheziidae e Pseudococcidae. A areca-bambu, Dypsis lutescens, e a samambaia-de-metro, Polypodium persicifolium, dentre as espécies envasadas, e o pinheiro-budista, Podocarpus macrophyllus, e a ixora, Ixora coccinea, dentre as espécies para paisagismo, foram as plantas mais infestadas pelos diaspidídeos. Entretanto, as espécies mais danificadas (amarelecimento e queda de folhas em mais de 50% da planta) pelos diaspidídeos foram a amambaia-paulista, Nephrolepis pectinata, a samambaiade-metro, Polypodium persicifolium e a onze-horas, Portulaca grandiflora, dentre as envasadas, e a estrelitzia, Strelitzia reginae, dentre as espécies para paisagismo.

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Effects of Mulching and Preemergence Herbicide Placement on Yellow Nutsedge Control and Ornamental Plant Quality in Landscape Beds

HortTechnology ◽

10.21273/horttech.23.5.651 ◽

2013 ◽

Vol 23 (5) ◽

pp. 651-658 ◽

Cited By ~ 3

Author(s):

Yan Chen ◽

Ronald E. Strahan ◽

Regina P. Bracy

Keyword(s):

Ornamental Plants ◽

Bare Soil ◽

The United States ◽

High Rate ◽

Limited Information ◽

Control Efficacy ◽

Organic Mulch ◽

Yellow Nutsedge ◽

Landscape Plant ◽

Gardenia Jasminoides

Yellow nutsedge (Cyperus esculentus) is one of the most troublesome and widespread perennial weeds infesting landscape plantings in the United States. Few selective herbicides are available for managing this weed. A combination of organic mulch with preemergence herbicide may improve control efficacy at tuber emergence and reduce the need for subsequent postemergence applications. However, limited information is available on potential interactions between herbicide placement and mulching and their effect on yellow nutsedge control and landscape plant growth and quality. In this study, control efficacy of preemergence herbicide s-ethyl dipropylthiocarbamate (EPTC) applied at 0, 4, or 6 lb/acre above or under pine straw, pine nuggets, or shredded cypress mulches were evaluated in landscape beds infested with yellow nutsedge and planted with ‘Mystery’ gardenia (Gardenia jasminoides), ‘Stella de Oro’ daylily (Hemerocallis), and ‘Big Blue’ liriope (Liriope muscari). Pine nuggets provided greater yellow nutsedge control compared with shredded cypress during the first 6 weeks after treatment (WAT) in mulch-alone plots. All mulch-alone plots had similar yellow nutsedge shoot densities and were 40% to 60% less than untreated bare soil plots from 6 to 12 WAT. Control efficacy was greater when EPTC was applied under mulch compared with above-mulch applications regardless of mulch products. In addition, EPTC at low rate resulted in similar control as high rate when applied under mulch. No injury was observed on any ornamental plants treated with EPTC. Mulching improved growth, flowering, and overall visual quality of gardenia, but reduced number of flowers in daylily and aboveground biomass in liriope at some sample dates though their visual qualities were unaffected. Based on these preliminary data, EPTC applied preemergence before mulching a new landscape bed or replenishing an existing bed can improve yellow nutsedge control without injuring selected ornamental plants.

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Temperate Zone Woody Plants for Interior Environments

Journal of Environmental Horticulture ◽

10.24266/0738-2898-4.1.16 ◽

1986 ◽

Vol 4 (1) ◽

pp. 16-18

Author(s):

Gary J. Keever ◽

Gary S. Cobb

Keyword(s):

Woody Plants ◽

Production Quality ◽

Gardenia Jasminoides ◽

Light Levels ◽

Fatsia Japonica ◽

Podocarpus Macrophyllus ◽

Interior Environments ◽

Mahonia Bealei ◽

Pittosporum Tobira

Japanese yew (Podocarpus macrophyllus ‘Maki’) and Wheeler's Dwarf pittosporum (Pittosporum tobira ‘Wheeler's Dwarf’) grown outdoors under 3 production light levels and shade-grown fatsia (Fatsia japonica), dwarf gardenia (Gardenia jasminoides ‘Radicans’), variegated pittosporum (Pittosporum tobira ‘Variegata’), leatherleaf mahonia (Mahonia bealei), and Chinese mahonia (Mahonia fortunei) adapted well to interior conditions following production. Quality of asiatic jasmine (Trachelospermum asiaticum), Okinawan holly (Ilex dimorphophylla), and dwarf Japanese euonymus (Euonymus japonica ‘Microphylla’) grown under the 3 production light levels and all species grown in full sun, except the Japanese yew and Wheeler's Dwarf pittosporum, were judged unacceptable.

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EFECTO DEL SUSTRATO Y REGULADORES DEL CRECIMIENTO SOBRE EL ENRAIZAMIENTO DE TRES VARIEDADES DE IXORA (Ixora coccinea L.) EN INVERNADERO

RECUBRIMIENTO COMESTIBLE CON BASE DE PIÑON MEXICANO (Jatropha curcas) SOBRE LA CALIDAD DE CHAYOTE MINIMAMENTE PROCESADO ◽

10.32854/agrop.v11i8.1110 ◽

2018 ◽

Vol 11 (8) ◽

Author(s):

L.G. Hernández-Montiel

Keyword(s):

Ixora Coccinea

La ixora (Ixora coccinea L.) es un arbusto utilizado para adornar jardines y parques. Es una planta que florece todo el año y por su vistoso colorido, es demandada en todo el mundo. La mayoría de las especies de lxora son de crecimiento lento, por lo que su propagación por esquejes utilizando reguladores de crecimiento y diferentes sustratos, puede permitir su explotación intensiva. El objetivo de este trabajo fue determinar el enraizamiento de tres variedades de Ixora coccinea utilizando tres sustratos y los reguladores del crecimiento ácido naftaleno-acético (ANA) y ácido indol-butírico (AIB). Se colectaron yemas axilares de tres variedades de Ixora que incluyen el color rosado, amarillo y rojo. Se utilizó ANA y AIB a dosis de 1, 1.5 y 2 mL kg-1 y los sustratos empleados fueron arena, arroz quemado y tierra de bosque. Las yemas axilares de cada color fueron tratadas con las dosis de los reguladores del crecimiento y depositadas en cada sustrato. Permanecieron en invernadero durante 60 días. Al terminar el experimento, se cuantifico; altura (cm), longitud máxima de raíz (cm), número de raíces, porcentaje de supervivencia y de enraizamiento y los datos fueron analizados mediante una prueba Tukey (P?0.05). Los resultados indicaron que yemas axilares de Ixora coccinea tratadas con ANA y AIB y, utilizando como cualquier sustrato como soporte, permitieron alcanzar un desarrollo morfológico óptimo asegurando la supervivencia y enraizamiento de las plantas en un 100%.

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