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Search Results: 1 - 10 of 238 matches for " cabbage "
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Effect of different fertilization on spring cabbage (Brassica oleracea L. var. capitata) production and fertilizer use efficiencies  [PDF]
Zhibin Guo, ChuanLong He, Youhua Ma, Hongbin Zhu, Feng Liu, Daozhong Wang, Li Sun
Agricultural Sciences (AS) , 2011, DOI: 10.4236/as.2011.23029
Abstract: Just after transplanting, the vegetable has difficulty in nutrients uptake. To explore the effect of different fertilization on spring cabbage (Brassica oleracea L. var. capitata) production and fertilizer use efficiencies, this experiment consisting of six treatments was implemented and divided into three groups: 1) no fertilizer (NF) and vegetable planting fertilizer (VPF); 2) conventional fertilizer (CF) and conventional fertilizer + vegetable planting fertilizer (CVPF); 3) reduced fertilizer application (RFA) and reduced fertilizer application + vegetable planting fertilizer (RVPF). The results of this experiment indicated that the yields of spring cabbage treated by VPF increased by 38.20% in VPF, 16.00% in CVPF and 20.40% in RVPF than their controls respectively. Additionally, the VPF helped improve the total and economic yields of the spring cabbage in all groups, and the economic benefits increased by 38.21% in VPF, 15.97% in CVPF and 20.42% in RVPF than their controls respectively. Finally, the VPF was of benefit to spring cabbage to exploit the soil nutrients and helped improve the chemical fertilizer use efficiencies. Therefore, it is an efficient, economical and ecological fertilization for vegetable production to apply chemical fertilizers in combination with VPF.
Assessment of heavy metal contamination in vegetables consumed in Zanzibars  [PDF]
Najat K. Mohammed, Fatma O. Khamis
Natural Science (NS) , 2012, DOI: 10.4236/ns.2012.48078
Abstract: Samples of amaranth and cabbage from Zanzibar were analyzed for heavy metal concentrations using Energy Dispersive X-ray Fluorescence spectrometry (EDXRF) of Tanzania Atomic Energy Commission (TAEC) in Arusha. Thirty samples of amaranth and twenty five samples of cabbage were collected from four farms and two markets at Urban West Region in Zanzibar. The concentrations of Al, Cl, Cr, Mn, Fe, Ni, Zn, Cu, Ag, I, Br, Cd and Pb are presented and discussed. Amaranth had significant (P < 0.05) higher concentrations of Zn, Fe, Cr and Mn than cabbage, whilst Cd, Ni and Pb were significantly (P < 0.05) higher in cabbage than amaranth. Although the mean concentrations of the essential elements were in the range reported in literature, Pb and Cd were in concentrations above FAO/ WHO maximum tolerable limits.
Effect of Treated Waste Water Irrigation on Plant Growth and Soil Properties in Gaza Strip, Palestine  [PDF]
Yasser El-Nahhal, Khalil Tubail, Mohamad Safi, Jamal Safi
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.49213

This study investigated the effect of treated wastewater (TWW) irrigation on growth of Chinese cabbage and corn and on soil properties in Gaza Strip, Palestine. Chinese cabbage and corn were planted in winter and summer seasons respectively in a sandy soil. The experimental design was a randomized complete block using 2 treatments with 4 replicates. Soil samples were collected from 0.0-120 cm depths from all plots and analyzed for pH, electric conductivity (EC) and nutrient contents. The plants were irrigated with either TWW or fresh water (FW) fortified with NPK, while control used drip irrigation system. The biomass (total fresh weight of the plants) was used as an indicator of the plant yields. Concentration of heavy metals on plant leaves was determined by Inductive Coupled Plasma Analyzer (ICP) and was taken as an indicator of plant quality. Biomass of Chinese cabbage and corn grown in plots irrigated with TWW was higher than those grown in plots irrigated with FW. These results indicate the ability of TWW supplying the necessary nutrients for plant growth. Heavy metal content in plant

Journal of Plant Development , 2011,
Abstract: The research concerning the possibility of cultivating Chinese cabbage (Brassica campestris var. pekinensis) took place in the spring of 2011, in the experimental field which belongs to the Vegetable Growing Department from the University of Agricultural Sciences and Veterinary Medicine from Cluj-Napoca. A collection of varieties and hybrids belonging to this species was established, within which a variety (Granat) and four hybrids (Michihli, Kingdom 80, Nepa F1 and Vitimo F1) were used.During the vegetation period measurements were made regarding the growing and the development of these plants in Transylvanian Tableland specific conditions. The processing of data recorded at harvest shows that the obtained yield varied between 41.00 and 63.15 t/ha, the Vitimo F1 hybrid reaching the highest yield. The obtained yields are satisfying, considering that the culture was an ecological one, no chemical products such as fertilisers or substances for prevention and control of pests and diseases were used.
Comportamento agron?mico de cultivares e híbridos de repolho na regi?o nordeste do Rio Grande do Sul
Fracaro, Fernando;Sartori, Marcelo;Bizzani, Ernesto;Grelman, Etmar;Echeverrigaray, Sergio;
Ciência Rural , 1999, DOI: 10.1590/S0103-84781999000300014
Abstract: cabbage (brassica oleracea var. capitata) is one of the most important horticultural plants in the northeast region of rio grande do sul state. the objective of the present study was to identify the best cultivar and hybrid of cabbage for this region. fifteen commercial materials of cabbage, from different distributors and origins, were evaluated for their agronomic behavior in veranópolis, rio grande do sul, from july to november, 1997, adopting the technology usually recommended for this region. the best productivities were obtained with the hybrids shinsei (54.8t/ha), japonês (53.6t/ha), astrus (48.6t/ha) and kenzan (44.8t/ha), and the cultivar brunswick (43.5t/ha). however, considering the preference of the market for cabbages of 1 to 1.5kg, the best materials were saik?, cora??o de boi, fuyutoyo, chato de quintal and midori, with productivities of the order of 32 to 40t/ha.
Notulae Botanicae Horti Agrobotanici Cluj-Napoca , 2004,
Abstract: Pedoclimatic conditions in Transylvania are less favourable to obtain early productions for vegetables than in the South and West of Romania. In this paper we present the results obtained on cabbage culture that has been done in polyethylene film greenhouse. There were used two varieties and two different densities. It has been also observed the effect of simple and double plant protection on the early production. It has been noticed that the double protection of cabbage in polythene tunnels assures a better growth of plants and so an earlier production.
Effect of Different Sources of Nutrients and Mulching on Growth and Yield Contributing Characters of Cabbage
M. Y. Sarker,Ferdouse Begum,M. K. Hasan,S. M. Raquibullah
Asian Journal of Plant Sciences , 2003,
Abstract: The experiment was conducted to know the effect of different source of nutrients and mulching on the growth and yield of cabbage. The experiment consisted of four levels of nutrients and three mulching. Sources of nutrients had significant effect on most of the parameters studied. The plants which received organic + inorganic fertilizers produced the highest (79.01 t ha-1) marketable yield, whereas plants having no fertilizer gave yield of 30.65 t ha-1. Mulching had no marked effect on harvest index, but had significant effect on rest of the parameters studied. The use of black polythene sheet mulch produced the highest marketable yield (70.24 t ha-1) and the lowest (45.13 t ha-1) in this respect was observed without mulch. The treatment combination of organic + inorganic fertilizers with black polythene sheet mulch gave the highest marketable yield (97.83 t ha-1) of cabbage.
Developmental Response of Cabbage Butterfly, Pieris brassicae L. (Lepidoptera: Pieridae) on Different Cole Crops Under Laboratory and Field Condition
Arshad Ali,Parvez Qamar Rizvi
Asian Journal of Plant Sciences , 2007,
Abstract: An attempt was made to find out the developmental response of cabbage butterfly, Pieris brassicae on different cole crops under Laboratory and field condition. The overall development of P. brassicae was recorded significantly higher on yellow sarson (40.70±2.38 and 37.87±1.93 days) as compared to lower on cabbage (34.15±1.80 and 33.12±1.95 days), under laboratory and field condition, respectively (p≤0.05). All the developmental stages (egg, larval instars, prepupal and pupal) of P. brassicae was registered their maximum development period on yellow sarson followed by gobhi sarson, cauliflower and cabbage under both conditions. However, the maximum development period of adult was recorded on cabbage and minimum on yellow sarson in both situations. The cabbage butterfly tuned their highest generation mortality on yellow sarson (0.3565 and 0.3645) in contrast to lowest on cabbage (0.2555 and 0.2486) in both laboratory and field conditions, respectively. The number of adults was recorded maximum in laboratory than the field condition on all the cole crops. It is possible due to the presence of natural enemies (predators and parasitoids), abiotic factors (temperature, relative humidity and rainfall) and some unknown factors in the field condition.
Impacto da temperatura e fotoperíodo no desenvolvimento ovariano e oviposi??o de tra?a-das-crucíferas
Crema, Allan;Castelo Branco, Marina;
Horticultura Brasileira , 2004, DOI: 10.1590/S0102-05362004000200028
Abstract: migration occurs in some insect species, and in many cases it commences when the ovaries are immature. environmental conditions can affect the rate of ovarian development and oviposition of insects. in the diamondback moth (dbm), plutella xylostella (lepidoptera: yponomeutidae), the larval density affected the rate of ovarian development. in this work we determined the impact of temperatures and photoperiods on dbm ovarian development and oviposition. fourth instar larvae were reared individually in petri dishes at temperatures of 14 and 25oc and photoperiods of 8l:16d and 14l:10d. emerged females were killed in a freezer and dissected under a microscope. to determine the impact of temperature on dbm oviposition, fourth instar larvae were reared individually in petri dishes at temperatures of 14 and 25oc and photoperiods of 8l:16d. when the adults emerged, one male and one female were put in a petri dish and the number of days for oviposition and the number of eggs laid in the first day was recorded. the results showed that the rate of ovarian development was not affected by the employed temperature or photoperiod suggesting that these factors did not affect the migratory potential of the species. females reared at 25oc and 14oc began to lay their eggs 2 and 5 days after emergence, respectively. there were no significant differences in the number of eggs laid in the first day. the results suggested that ovipositon is delayed at low temperatures. the impact of these results on migration and dispersion of dbm are discussed.
Contenido de sulforafano (1-isotiocianato-4-(metilsulfinil)-butano) en vegetales crucíferos
Campas-Baypoli,Olga N; Bueno-Solano,Carolina; Martínez-Ibarra,Diana M; Camacho-Gil,Francisco; Villa-Lerma,Alma G; Rodríguez-Nú?ez,Jesús R; López-Cervantes,Jaime; Sánchez-Machado,Dalia I;
Archivos Latinoamericanos de Nutrición , 2009,
Abstract: sulforaphane is an isothiocyanate which has antimicrobial and anticarcinogenic properties, this compound is found in a wide variety of plants from genus brassica oleracea, being the most important broccoli and cabbage. the objective of this research was to quantify sulforaphane in the edible parts of broccoli and cabbage leaves by high-performance liquid chromatography (hplc). sample preparation for the quantification of sulforaphane include the conversion of glucoraphanin to sulforaphane (45 ± 2 °c for 2.5 h), extracted with dichloromethane, purification of the extract in columns of solid phase extraction and detection by hplc- uv. sulforaphane concentration in broccoli is in the range of 214 μg/g dw (stems) to 499 μg/g dw (inflorescences). the purple cabbage (101.99 μg/g dw) has values greater than the green cabbage (7.58 μg/g dw). the inflorescences of broccoli and red cabbage leaves are rich in sulforaphane.
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