scholarly journals Propagation of Tronchuda (Brassica oleracea var. tronchuda Bailey) from Cuttings

HortScience ◽  
1992 ◽  
Vol 27 (9) ◽  
pp. 1036-1038 ◽  
Author(s):  
W. Msikita ◽  
H.T. Wilkinson ◽  
R.M. Skirvin

A system to propagate tronchuda (Brassica oleracea var. tronchuda Bailey syn. costata L.) from main stem and side shoot cuttings was developed by removing the main stem (three to four leaves) and, later, side shoots from S-week-old plants, transplanting them into small pots, and growing them under a mist system for 4 weeks. New root growth appeared on cuttings within 3 weeks. Rooting frequency varied among cultivars and explant types. For all cultivars, side shoot cuttings rooted better than main stem cuttings (99.7% vs. 84.8%). For all cultivars, seed-propagated plants and side shoot cuttings produced leaves with significantly higher fresh weight than the main stem cuttings for three of the five cultivars. The average number of leaves per plant for four cultivars was, however, not significantly affected by propagation method. Average leaf count and fresh weight per plant were significantly higher for `Portuguesa' than for `Ana Maria'. `Couve Penca'. `Vilinda', and `Penca de Chaves' for all three propagation sources.

1969 ◽  
Vol 63 (2) ◽  
pp. 229-235
Author(s):  
Saulo J. Rodríguez ◽  
Carlos Rivera-López

Sander's Dracaena (Dracaena sanderiana, Hort.) was grown in 3 x 3 x 3 N, P, K factorial experiment in a 1:1 mixture of peat moss and Cataño sand. Commercial cuttings were harvested at regular intervals during a 32-mo growing period. Fresh weight, length, number of leaves , and weight of leaves was recorded from each harvested cutting. Nitrogen affected significantly the number of harvested cuttings per unit area, total growth and total top growth, all of which were highest at 600 pounds of N/acre/yr. Phosphorus affected significantly only the number of harvested cuttings while potassium affected significantly total growth, top growth, root growth, mean size and mean weight of harvested cuttings, and leal mean weight. The fitting of a modification of the fertilizer-yield equation Y = A/1 + B( C - X)2 showed that maximum yields in terms of number of cuttings were obtained with a combination of approximately 648, 465 and 583 pounds of N, P, K/acre/yr, respectively. The maximum total growth and top growth depended more on the phosphorus and less on the potassium. Root growth was definitely affected by the phosphorus applications.


2013 ◽  
Vol 10 (2) ◽  
pp. 205-210
Author(s):  
AR Khan ◽  
SH Chowdhury ◽  
MM Karim

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh from December 2009 to March 2011 to determine the effect of date of planting on growth and leaf yield of Stevia. The experiment comprised 24 dates of planting in the year of 2010 viz. 1 January (T1), 15 January (T2), 1 February (T3), 15 February (T4), 1 March (T5), 15 March (T6), 1 April (T7), 15 April (T8), 1 May (T9), 15 May (T10), 1 June (T11), 15 June (T12), 1 July (T13), 15 July (T14), 1 August (T15), 15 August (T16), 1 September (T17), 15 September (T18), 1 October (T19), 15 October (T20), 1 November (T21), 15 November (T22), 1 December (T23) and 15 December (T24). The experiment was laid out in a Complete Randomized Design with three replications. Twenty four dates of planting were included in the experiment in 72 earthen pots (24 X 3) of 30 cm diameter X 30 cm height. Stem cuttings were placed in shaded seed bed for root initiation. Twenty one - day old stem cuttings were used as planting material. Stem cuttings were transplanted in the pots on the specific dates. Different dates of planting had significant effect on the growth and yield parameters. 1 April 2010 (T7) planting proved to be the superior to the other treatments i.e. plant height (68.50cm), number of leaves plant-1 (142.33), number of primary branches plant-1 (37.33), fresh weight of leaves plant-1 (14.11g), fresh weight of primary and secondary branches plant-1 (11.06g and 20.91g), dry weight of leaves plant-1 (3.38g) which might be due to warm environmental conditions like clear sunshine and high temperature. The overall results suggested that stevia seedlings may be planted from 15 February to 30 April for better yield of leaves. DOI: http://dx.doi.org/10.3329/jbau.v10i2.14684 J. Bangladesh Agril. Univ. 10(2): 205-210, 2012


Irriga ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 308-320
Author(s):  
Andre Felipe Barion Alves Andrean ◽  
Roberto Rezende ◽  
Gustavo Soares Wenneck ◽  
Anderson Takashi Hara ◽  
Claudia Salim Lozano Menezes ◽  
...  

ASPECTOS AGRONÔMICOS DA FORMAÇÃO DA INFLORESCÊNCIA DA COUVE-FLOR SOB DIFERENTES CONDIÇÕES HÍDRICAS     ANDRE FELIPE BARION ALVES ANDREAN1; ROBERTO REZENDE2; GUSTAVO SOARES WENNECK 1; ANDERSON TAKASHI HARA1; CLAUDIA SALIM LOZANO MENEZES1 E DANIELE DE SOUZA TERASSI1   1Discente do Programa de Pós-graduação em Agronomia, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, CEP:87020-900, Maringá, Paraná, Brasil. E-mail: [email protected]; [email protected]; [email protected]; [email protected]; [email protected] 2Professor do Departamento de Agronomia, Universidade Estadual de Maringá (UEM), Av. Colombo, 5790, Zona 7, CEP:87020-900, Maringá, Paraná, Brasil. E-mail: [email protected]     1 RESUMO   Compreender o comportamento da couve-flor em diferentes condições de disponibilidade hídrica pode ser uma importante ferramenta de auxílio ao produtor, que poderá tomar as melhores decisões quanto a época de plantio e a escolha da cultivar, além disto, mesmo que os materiais vegetais possuam a mesma classificação de época de plantio e sazonalidade, o desempenho e os meios fisiológicos de produção muitas vezes não são os mesmos. Objetivou-se avaliar os aspectos agronômicos da formação da inflorescência de duas cultivares de couve-flor, em ambiente protegido, sob diferentes níveis de irrigação com base na aferição de sua evapotranspiração. O arranjo experimental foi em blocos casualizados, com quatro repetições, em esquema fatorial de 2 x 3, sendo dois híbridos e três regimes hídricos. Houve resposta significativa do fator híbrido Barcelona e as diferentes lâminas de irrigação para a variável massa fresca da inflorescência. O híbrido Viena apresentou melhor desempenho produtivo, não variando sua massa fresca de inflorescência mesmo com as alterações de disponibilidade hídrica. A massa fresca das folhas possui forte correlação com a massa fresca da inflorescência, principalmente, para o híbrido Barcelona. O número de folhas acima de 15 contribui positivamente para o crescimento do diâmetro da inflorescência em couve-flor.   Palavras-chave: Brassica oleracea var.botritys, lâminas de irrigação, fonte-dreno.     ANDREAN, A. F. B. A.; REZENDE, R.; WENNECK, G. S.; HARA, A. T.; MENEZES, C. S. L.; TERASSI, D. S. AGRONOMIC ASPECTS OF THE FORMATION OF THE INFLORESCENCE OF CAULIFLOWER UNDER DIFFERENT WATER CONDITIONS     2 ABSTRACT   Understanding the behavior of cauliflower under different water availability conditions can be an important tool to assist farmers, that will be able to make the best decisions regarding the planting time and the choice of the cultivar, in addition, even if the plant materials have the same classification of planting time and seasonality, performance and physiological means of production are often not the same. The objective was to evaluate the agronomic aspects of the formation of the inflorescence of two cauliflower cultivars, in a greenhouse under different levels of irrigation based on the measurement of their evapotranspiration. The experimental arrangement was in randomized blocks with four replications in a 2 x 3 factorial scheme, two hybrids and three water regimes. There was a significant response from the hybrid factors Barcelona and the different irrigation depths for the variable fresh mass of the inflorescence. The Viena hybrid showed better productive performance, with its fresh inflorescence mass not varying even with changes in water availability. The fresh weight of the leaves has a strong correlation with the fresh weight of the inflorescence, mainly for the Barcelona hybrid. The number of leaves above 15 contributes positively to the growth of the diameter of the cauliflower inflorescence.   Keywords: brássica olerácea var. botritys, irrigationplates, souce-sink.


HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 502C-502
Author(s):  
Lynze Greenwood ◽  
Janice M. Coons ◽  
Henry R. Owen ◽  
Lisa Ferguson ◽  
Ronglin Wang

Lettuce (Lactuca sativa) is one of the most important U.S. fresh-market vegetables with year-round consumption. For winter markets, lettuce is produced in the southwestern states with plantings in early fall when soil temperatures are high. Seed germination of lettuce, however, is inhibited by soil temperatures over 25 °C. The objective of this study was to test the emergence and growth of five lettuce cultivars using two seedlots produced in winter or summer to provide information for improving stand establishment at high temperatures. Seeds of five cultivars (`Empire', `Parris Island Cos', `Waldmann's Green', `Prizehead', and `Dark Green Boston') produced in Yuma, Ariz., during summer or winter months were used. Seeds were planted in a greenhouse mix in plastic trays and grown in a growth chamber at 23, 25, 30 and 35 °C. After 4 weeks, number of emerged plants, number of leaves, height, fresh weight, dry weight, and leaf area were measured. At lower temperatures (23 and 25 °C), more plants emerged and plants developed more rapidly than at higher temperatures (30 and 35 °C). More plants emerged of `Empire' and `Parris Island Cos' than of `Waldmann's Green' or `Dark Green Boston'. Growth varied greatly for the different cultivars. At 35 °C, only `Empire' winter seed emerged. At other temperatures, summer seed lots generally were better than or equal to winter seedlots. This information suggests that seeds developed during the summer are more vigorous at emergence than those developed during the winter.


AgriPeat ◽  
2019 ◽  
Vol 20 (01) ◽  
pp. 36-44
Author(s):  
Admin Journal

ABSTRACTThe aim of this study was to determine the interaction between guano walet administration and reduction of SP-36 fertilizer on growth and yield of flower cabbage; to find out the effect of guano walet on the growth and yield of flower cabbage; and to find out the effect of SP-36 fertilizer reduction on growth and yield of flower cabbage. The study was conducted from May to August 2018. This study used a completely randomized design (CRD) consisting of 2 factors namely guano walet with a reduction in SP-36 fertilizer, 4 x 4 factorial pattern with 3 replications. The variables observed were the number of leaves, flowering age, plant wet weight, fresh weight of flowers, and diameter of flower crop. The results showed that the combination of 100% guano walet administration with a reduction of SP-36 0% on spodosol soil gave the best results for the number of leaves with an average value of 16.00 strands at 6 weeks after planting and fresh flower weight of 166, 76 g. Guano walet administration on spodosol soil with a dose of 100% gave the best results on the number of leaves by 25.83 strands at the age of 9 weeks after planting, flowering age of 79.33 day, plant wet weight of 326.82 g and the results showed that the combination of 100% guano walet administration with a reduction of SP-36 0% gave the best results for the diameter of flower cropwith an average value of 12,15 cm.Key words: cabbage flower, guano walet, SP-36 fertilizer, spodosolsABSTRAKTujuan dari penelitian ini adalah untuk mengetahui interaksi antara pemberian guano walet dengan pengurangan pupuk SP-36 terhadap pertumbuhan dan hasil kubis bunga; untuk mengetahui pengaruh pemberian guano walet terhadap pertumbuhan dan hasil kubis bunga; dan untuk mengetahui pengaruh pengurangan pupuk SP-36 terhadap pertumbuhan dan hasil kubisbunga.Penelitian dilaksanakan mulai dari bulan Mei sampai Agustus 2018. Penelitian ini menggunakan rancangan acak lengkap (RAL) yang terdiri dari 2 faktor, yaitu pemberian guano walet dengan pengurangan pupuk SP-36, pola faktorial 4 x 4 dengan 3 ulangan. Variabel yang diamati adalah jumlah daun, umur berbunga, bobot segar total tanaman, bobot segar bunga, dan diameter krop bunga. Hasil penelitian menunjukkan bahwa kombinasi pemberian guano walet 100% dengan pengurangan SP-36 0% pada tanah spodosol memberikan hasil terbaik jumlah daun dengan nilai rata-rata sebesar 16,00 helai tanaman-1 pada umur 6 minggu setelah tanam dan bobot segar bunga 166,76 g tanaman-1. Pemberian guano walet pada tanah spodosol dengan dosis 100% memberikan hasil terbaik terhadap jumlah daun sebesar 25,83 helai tanaman-1 pada umur 9 minggu setelah tanam, umur munculnya bunga pada hari ke- 79,33, bobot segar total tanaman sebesar 326,82 g tanaman-1dan pada variabel diameter krop bunga pemberian guano 50% dengan pengurangan pupuk SP-36 0% memberikan hasil sebesar 12,15 cm tanaman-1.Kata kunci: Guano walet, kubis bunga, pupuk SP-36, tanah spodosol


2015 ◽  
Vol 45 (2) ◽  
pp. 231-237 ◽  
Author(s):  
José Carlos Sorgato ◽  
Yara Brito Chaim Jardim Rosa ◽  
Jackeline Schultz Soares ◽  
Camila Soares Rosa Lemes ◽  
Gisele Garcia de Sousa

The success in micropropagation of Dendrobium phalaenopsis Deang Suree is high, but when transplanted into the greenhouse, their survival is minimal. To increase survival in production in the present study it was evaluated the effect of intermediate acclimatization for 30 days in a grow room utilizing the following luminosity conditions: 1- white fluorescent light (B) (18.9µmol m-2 s-1); 2- white fluorescent light + red fluorescent light (GRO-LUX(r)) (BV) (14.85µmol m-2 s-1); 3- red fluorescent light (GRO-LUX(r)) (V) (9.45µmol m-2 s-1) and the control plants were accommodated directly in a greenhouse (162.0µmol m-2 s-1). After this the leaves were characterized anatomically and the plants transferred to the control greenhouse. It was evaluated survival percentage and final number of roots, and calculated the relations between the final and initial values of fresh weight, number of leaves, length and diameter of the largest pseudo bulb, number of pseudo bulbs and longest root length. Only plants submitted to red light, were statistically better than the control in relation to the survival percentage and in relation to fresh weight, while the control showed a higher number of roots that plants acclimatized in this luminosity conditions. Intermediate acclimatization, using red light or red + white light, is recommended for D. phalaenopsis Deang Suree.


2016 ◽  
Vol 1 (1) ◽  
pp. 45-52
Author(s):  
Palupi Puspitorini

The aim of this study was to select the best sources of auxin of which it can stimulate the growth of shoots Pineapple plant cuttings. This research is compiled in a completely randomized design (CRD) with 4 treatments and 6 replications. The Data were statistically Analyzed by the DMRT. Level of treatment given proves that no treatment 0%, cow urine concentration of 25%, young coconut water concentration of 25% and Rootone F 100 mg / cuttings. The results showed that cow urine concentrations of 25% and Rootone F 100 mg give the best results in stimulating the growth of shoots pineapple stem cuttings. Experimental results concluded that the effect of this natural hormone were better than the shoots without given hormone.           


HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 480e-480
Author(s):  
Nancy H. Furness ◽  
Mahesh K. Upadhyaya ◽  
Douglas P. Ormrod

Relative sensitivity of selected vegetable and weed seedlings to ultraviolet-B (UV-B) radiation (280–320 nm) was investigated. Seedlings were grown for 4 weeks in a greenhouse, in chambers equipped with UV-B-emitting fluorescent tubes and Mylar (control) and cellulose acetate (UV-B) filters. UV-B radiation reduced seedling height, leaf area, and leaf fresh weight in tomato (Lycopersicon esculentum `Cour Di Bue'), broccoli (Brassica oleracea var. Italica `Purple Sprouting'), cabbage (Brassica oleracea var. Capitata `Red Drumhead'), and cucumber (Cucumis sativus `Straight Eight'), leaf area and leaf fresh weight in beet (Beta vulgaris `Cylindra' and `Early Wonder'), seedling height and leaf area in spinach (Spinacia oleracea `Long Standing Bloomsdale'), lettuce (Lactuca sativa ``Red Salad Bowl Everest') and `Savoy' cabbage, and seedling height in `Chinese Tip Top' cabbage and lettuce (`Saladin'). `Winterton' cabbage was not affected. UV-B radiation decreased leaf area and leaf fresh weight in common chickweed (Stellaria media) and corn spurry (Spergula arvensis) and seedling height in green foxtail (Setaria viridis) and redroot pigweed (Amaranthus retroflexus). Tillering was stimulated in response to UV-B in green foxtail. There was no effect of UV-B on lady's-thumb (Polygonum persicaria) growth. Leaf number was not affected by exposure to UV-B in any species. The differential morphological sensitivity of vegetable and weed seedlings may result in altered competitive relationships under enhanced UV-B levels expected with the depletion of the earth's ozone layer.


2017 ◽  
Vol 30 (2) ◽  
pp. 412-419 ◽  
Author(s):  
ARTHUR BERNARDES CECÍLIO FILHO ◽  
ALEXSON FILGUEIRAS DUTRA ◽  
GILSON SILVERIO DA SILVA

ABSTRACT The intensive cultivation of vegetables with frequent chemical fertilization may cause accumulation of nutrients in the soil. This, in turn, may reduce crop yields and damage the environment due to contamination of ground water and rivers. Thus, to increase the effects of P (0, 100, 200, 300 and 400 kg ha -1 of P2O5) and K (0, 60, 120, 180 and 240 kg ha-1 of K2O) doses on the growth and productivity of radish cultivars (Sakata 19 and Sakata 25) in a soil with high levels of these nutrients, two experiments were conducted in randomized blocks with the factors cultivars and doses arranged in a 2 x 5 factorial design with three replications. Number of leaves per plant, leaf area, shoot and root dry mass, total and commercial productivity, percentage of cracked roots and P and K contents in the plant and in the soil were evaluated. The Sakata 19 cultivar performed better than the Sakata 25 in both experiments. The fertilization with P or K did not influence the growth and the productivity of both radish cultivars. Therefore, both cultivars of radish evaluated do not need to be fertilized with P and K when planted in a Latosol with high levels of these nutrients.


2018 ◽  
Vol 33 (1) ◽  
pp. 34
Author(s):  
Samanhudi Samanhudi ◽  
Ahmad Yunus ◽  
Bambang Pujiasmanto

Potential development of medicinal plants in Karanganyar is very large, because this area is famous as a center of medicinal plants such as ginger, turmeric, kencur, and temulawak. In the development of medicinal plants, the approach of organic cultivation is one of the alternatives that can be done to achieve the business. Therefore the application of technology to society about organic farming on Biopharmaca Cluster of Karanganyar was conducted with the aim to apply organic cultivation techniques that have resulted from previous studies, so it can be applied by the community to increase income and welfare. This application of technology to society activity is held in Sambirejo, Jumantono, Karanganyar. The research was conducted from March to October 2016. The results showed that the application of chicken manure affects the number of leaves, number of tillers, and the fresh weight of turmeric rhizome. The addition of manure (chicken, goat, cow) can increase all variables of planting growth which include plant height, number of leaf, number of tillers, fresh weight of plant, dry weight of plant, and fresh weight of rhizomes. Giving three types of manure (chicken, goat, cow) with mycorrhizal dose treatment there is no intraction to some growth observation variables. Mycorrhizal treatment with a dose of 10 g/plant can increase the number of tillers in turmeric. Overall the application of mycorrhizal at various doses (5, 10, and 15 g/plant) can increase plant height, leaf number, number of tillers, and fresh weight of turmeric rhizome.


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