Production and photosynthetic pigments of bell peppers all big (Capsicum annuum L.) subjected to fertilization with biochar and nitrogen

The Northeastern semi-arid region provides favorable conditions for bell pepper cultivation, but most often the low availability of soil nutrients to plants constitutes a limiting factor to production. In this context, the present study aimed to evaluate the production and photosynthetic pigments of bell pepper subjected to increasing levels of fertilization with biochar and nitrogen. The experiment was conducted in pots (Citropote®) under greenhouse conditions. Treatments were arranged in a completely randomized design, in 4 x 4 factorial scheme, relative to four doses of biochar (0; 7; 14 and 21 m3 ha-1) and four doses of nitrogen (0; 40; 80 and 120 kg ha-1), with three replicates. Fertilization with 70 kg ha-1 of nitrogen and 14 m3 ha-1 of biochar promotes highest yield of bell pepper in terms of number of fruits and fruit fresh weight per plant. The highest contents of photosynthetic pigments were obtained in plants fertilized with 70 kg ha-1 of nitrogen associated with 10 m3 ha-1 of biochar. Biochar doses above 15.54 m3 ha-1 negatively affect the longitudinal diameter of bell pepper fruits. The recommendation of 120 kg ha-1 of nitrogen and 20 m3 ha-1 of biochar reduces bell pepper production and photosynthetic pigments.

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Effects of Gypsum and Zeolite on Nutrient Uptake and Shallot (Allium ascalonium L.) Growth on Irrigated Saline Entisol

Journal of Tropical Soils ◽

10.5400/jts.2019.v24i2.73-81 ◽

2019 ◽

Vol 24 (2) ◽

pp. 73

Author(s):

Rahayu Rahayu ◽

Jauhari Syamsiyah ◽

Livia Dewi

Keyword(s):

Nutrient Uptake ◽

Soil Amendment ◽

High Salinity ◽

Saline Water ◽

Limiting Factor ◽

Fresh Weight ◽

Randomized Design ◽

Two Factors ◽

Wet Weight ◽

Completely Randomized Design

Entisols is soil that newly formed and has diverse fertility, and potential for shallot cultivation.. The center of shallot production is mostly carried out in coastal areas which have a limiting factor high soil salinity. High salinity will cause nutrient uptake and plant growth disrupted. Soil amendments such as zeolite and gypsum potential option to overcome tha impact of high salinity. This study was completely randomized design (CRD) two factors, shallot cultivar (Brebes cultivar = V1, Purbalingga cultivar = V2, Pemalang cultivar = V3), and soil amendment (gypsum = G, zeolite = Z, without amendments= K. Each pot countaned of 15 kg of entisols and irrigated by 1 liter saline water of 2 mS / cm every day. Results shallot that amendment application can significantly improve pH, EC, SAR. Application of gypsum (25 Mg ha-1) and zeolite (15 Mg ha-1) showed the higher effect on purbalingga cultivars (V2). Interaction amendments and cultivars did not significantly affect on plant height and diameter of the bulbs. Gypsum 25 Mg ha-1 (G) significantly increased wet weight and fresh weight of bulb in purbalingga cultivars.

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Production and water yield of cauliflower under irrigation depths and nitrogen doses

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n8p561-565 ◽

2019 ◽

Vol 23 (8) ◽

pp. 561-565

Author(s):

Reginaldo M. de Oliveira ◽

Rubens A. de Oliveira ◽

Sanzio M. Vidigal ◽

Ednaldo M. de Oliveira ◽

Lorença B. Guimarães ◽

...

Keyword(s):

Water Depth ◽

Irrigation Water ◽

Water Yield ◽

Crop Evapotranspiration ◽

Fresh Weight ◽

Randomized Design ◽

Mean Diameter ◽

Irrigation Depth ◽

Completely Randomized Design ◽

Water Depths

ABSTRACT Cauliflower is a brassica produced and consumed in Brazil, whose cultivation depends on the adequate supply of water and nutrients. The objective of this study was to evaluate the effect of irrigation depths and nitrogen doses on the production components and water yield of cauliflower hybrid Barcelona CMS. The treatments consisted of five irrigation water depths (0, 75, 100, 125 and 150% of the crop evapotranspiration) combined with five nitrogen doses (0, 75, 150, 300 and 450 kg ha-1). The experiment was conducted in a completely randomized design with a split-plot arrangement. The effects of these factors were evaluated using the response surface methodology. The water yield of the crop decreases with increasing irrigation water depth; therefore, the yield is higher when water replenishment is lower than the recommended. The highest estimated total inflorescence yield is 24,547.80 kg ha-1, with a inflorescence mean diameter of 19.60 cm, a inflorescence mean height of 12.25 cm, and an inflorescence fresh weight of 858.90 g plant-1, obtained with an irrigation water depth equivalent to 132.09% of the crop evapotranspiration (ETc) and a nitrogen dose of 450 kg ha-1. The highest inflorescence diameter and height are obtained with an irrigation depth equivalent to 128.70 and 108.20% of ETc, respectively, and a nitrogen dose of 450 kg ha-1. Therefore, the best productivity response of the Barcelona CMS cauliflower hybrid can be obtained using an irrigation depth greater than the crop evapotranspiration, regardless of the nitrogen doses.

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Okra seedlings production in protected environment, testing substrates and producing fruits in field

Horticultura Brasileira ◽

10.1590/s0102-05362013000100002 ◽

2013 ◽

Vol 31 (1) ◽

pp. 08-14 ◽

Cited By ~ 2

Author(s):

Edilson Costa ◽

Taynara G de Souza ◽

Gleciane de L Benteo ◽

Katiane SS Benett ◽

Cleiton GS Benett

Keyword(s):

Block Design ◽

Joint Analysis ◽

State University ◽

Mato Grosso ◽

Randomized Block Design ◽

Randomized Design ◽

Completely Randomized Design ◽

Hot Weather ◽

Favorable Conditions ◽

Mato Grosso Do Sul

The okra grows well in hot weather, finding favorable conditions for development in Brazil. We evaluated the production of okra seedlings and productivity. The experiment was conducted in the experimental area of the State University of Mato Grosso do Sul, in Aquidauana. In the seedling phase we tested substrates (100% triturated cassava stems, 75% triturated cassava stems and 25% vermiculite, 50% triturated cassava stems and 50% vermiculite, 25% triturated cassava stems and 75% vermiculite and 100% vermiculite). These substrates were placed in two protected environments (nursery with black screen, 50% of shading, and aluminized screen, 50% of shading). Each environment was considered an experiment conducted in completely randomized design with eight replications. After that we realized joint analysis. In the field, a total of 10 treatments generated from combinations of environments and substrates (2 environments x 5 substrates) were distributed in a randomized block design with four replications. The average proportions of cassava stems and vermiculite may be suitable for okra seedlings. The results of shoot and total dry phytomass indicate that the aluminized screen can be recommended for okra seedlings production when the substrate with a 1:1 ratio is used. Seedlings grown on higher percentages of vermiculite anticipate production, while seedlings produced only in cassava stems tend to slow it down. The aluminized screen tends to increase the yield of okra seedlings. Average proportions of vermiculite and cassava stems for seedling production under aluminized screen, provide more fruits and yield of okra in Aquidauana.

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Physical characteristics of passionfruit cv. BRS gigante amarelo produced by flowers with three and four carpels

Bioscience Journal ◽

10.14393/bj-v36n5a2020-41776 ◽

2020 ◽

Vol 36 (5) ◽

Author(s):

Danilo Akio de Sousa Esashika ◽

Fábio Gelape Faleiro ◽

Nilton Tadeu Vilela Junqueira

Keyword(s):

Spherical Shape ◽

Physical Characteristics ◽

Transverse Diameter ◽

Reproductive Structure ◽

Tukey Test ◽

Randomized Design ◽

Completely Randomized Design ◽

Pericarp Thickness ◽

Fruit Mass ◽

Longitudinal Diameter

The carpel is the female reproductive structure composed of a set of stigma, style and ovary. Normally passionflower have three carpels, however, some cultivars have this structure in greater quantity. The objective of this work was to identify relationships between the number of carpels and the physical characteristics of BRS Gigante Amarelo fruits. The flowers with three and four carpels were marked, pollinated and the fruits harvested from these flowers analyzed for transverse diameter, longitudinal diameter, pericarp thickness, fruit mass, pulp mass, pulp ratio, number and weight of seeds. A completely randomized design with 10 replicates per treatment was used and each plot had the average of 3 fruits. The data were submitted to variance analysis and the means were compared by the Tukey test at 5% of probability. The fruits generated by flowers with 4 carpels were 18,30% heavier, their pulp were on average 20.75% heavier, presented transverse diameter 7,53% superior to that of fruits generated by flowers with 3 carpels. Similar increments were identified regarding the number of seeds and the weight of seeds per fruit that increased 18,85% and 52.42%, respectively. This result indicates that cv. BRS Yellow Giant with 4 carpels generates heavier fruits, pulp and seeds with a more spherical shape.

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THE ADDITION OF COCONUT WATER AND THIAMINE TOWARDS CHRYSSANTHENUM MICRO CUTTINGS (Dendranthema grandiflora Tzvelev) IN VITRO

Agrivet ◽

10.31315/agrivet.v27i1.4694 ◽

2021 ◽

Vol 27 (1) ◽

pp. 39

Author(s):

Salma Nabila ◽

Endah Budi Irawati ◽

Rina Srilestari

Keyword(s):

Water Concentration ◽

Coconut Water ◽

Fresh Weight ◽

Randomized Design ◽

Two Factors ◽

Completely Randomized Design ◽

Range Test ◽

Growing Shoot

Chryssanthenum is ornamental plant with variety of shape and color which are unique and appealing. So that, it is in great demand in the community. The production of Chrissanthenum conventionally hampered by availability and quality of seeds. Thus, it needs research through tissue culture. The aim of this research is to know interaction between coconut water and thiamine and to determine the best coconut water and thiamine concentration toward Chryssanthenum micro cuttings. This research used laboratory experimental method by using completely randomized design with two factor. The 1st factor was coconut water concentration consisted of three level which were 5%, 10% and 15%. The 2nd factor was thiamine concentration consisted of three level which were 1mg/L, 2 mg/L and 3 mg/L. From the two factors, those were found that, there were nine combination of treatments and repeated 3 times. The variety of data was analyzed by using Analysis of Variance (ANOVA) with level of α=5%, and continued by examining Duncan’s Multiple Range Test (DMRT) with level of α=5%. The result indicated that the interaction of coconut water concentration was 5% and thiamine was 1 mg/L on the parameters when growing shoot. There was also interaction on coconut water concentration which was 10 % and thiamine was 1 mg/L on the parameters in the number of shoots. interaction of coconut water combination was 15% and thiamine was 2 mg/L on fresh weight. The addition of 10% coconut water and 1 mg/L thiamine showed the best result on shoot length.

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PEMBERIAN KOMPOS PADA TANAH BEKAS TAMBANG DENGAN INDIKATOR TANAMAN SAWI (Brassica chinensis L)

EUGENIA ◽

10.35791/eug.21.2.2015.9711 ◽

2015 ◽

Vol 21 (2) ◽

Author(s):

Theffie Lientje Karamoy ◽

W. J.N. Kumolontang ◽

J. Rondonuwu

Keyword(s):

Plant Height ◽

Soil Nutrients ◽

Soil Chemistry ◽

Design Method ◽

Research Data ◽

Harvest Time ◽

Fresh Weight ◽

Mining Soil ◽

Randomized Design ◽

Completely Randomized Design

ABSTRACT This research aimed to determine the effects of compost applications on ex-mining lands by using chinese cabbage as indicator. The experiments were conducted at the Faculty of Agriculture greenhouse and the soil and compost analysis were done at the Soil Chemistry and Fertility Laboratory for a duration of two months. The research employed a Completely Randomized Design method with 5 treatments repeated 3 times to get 15 experimental units. The analysis on ex-mining soil revealed that it contained only trace amounts of soil nutrients N, P, and K. The laboratory analysis on the compost sample resulted in a C/N ratio of 11.87 which suggested that the compost was mature and ready to be used. The Analysis of Variance on research data showed that compost applications did not affect plant height between treatments at each weekly observation, and similarly did not affect leaf quantity and fresh weight at harvest time. However, the research found that the compost applications tended to improve plant height, leaf quantity, and fresh weight of plants at harvest time. The minimal effect of compost applications between treatments suggested that the plants did not utilized the nutrients supplied by the compost in their early stages of development. Moreover, it was also suspected that the compost applications had not been sufficient in supplying the soil nutrients needed by the plants to ensure proper growth which ultimately affected the fresh weight of the plants at harvest time. Keywords: compost, ex-mining land

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Gas exchanges and growth of cotton cultivars under water salinity

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n6p393-399 ◽

2019 ◽

Vol 23 (6) ◽

pp. 393-399

Author(s):

André A. R. da Silva ◽

Luana L. de S. A. Veloso ◽

Ronaldo do Nascimento ◽

Elka C. S. Nascimento ◽

Carlos V. de C. Bezerra ◽

...

Keyword(s):

Irrigation Water ◽

Sandy Loam ◽

Saline Water ◽

Water Salinity ◽

Gas Exchanges ◽

Randomized Design ◽

Irrigation Water Salinity ◽

Completely Randomized Design ◽

Semi Arid Region ◽

Response To Water

ABSTRACT Indication of salt-tolerant cotton cultivars can make the agricultural exploitation with saline water irrigation feasible in the Brazilian semi-arid region. Thus, this study aimed to evaluate the gas exchanges and growth of cotton cultivars irrigated with saline water. The study was conducted in pots adapted as drainage lysimeters under greenhouse conditions, using a sandy loam Entisols as substrate. Treatments were distributed in completely randomized design, in 5 x 2 factorial arrangement, relative to five levels of irrigation water electrical conductivity - ECw (1.5, 3.0, 4.5, 6.0 and 7.5 dS m-1) and two cotton cultivars (BRS 368 RF and BRS Safira). Increase in irrigation water salinity inhibits the vegetative growth and gas exchanges of the cotton cultivars BRS Safira and BRS 368 RF. Leaf area and instantaneous carboxylation efficiency are the most affected variables. Physiological and growth performance of the cultivar BRS Safira in response to water salinity was higher than that of BRS 368 RF.

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Pertumbuhan dan Hasil Kacang Hijau (Vigna radiata, L.) pada Beberapa Dosis Pupuk Organik dan Kerapatan Tanam

Caraka Tani Journal of Sustainable Agriculture ◽

10.20961/carakatani.v33i2.20412 ◽

2018 ◽

Vol 33 (2) ◽

pp. 89

Author(s):

Desi Putri Hastuti ◽

Supriyono Supriyono ◽

Sri Hartati

Keyword(s):

Plant Density ◽

Organic Fertilizer ◽

Growth And Yield ◽

Food Crops ◽

Fresh Weight ◽

Randomized Design ◽

Increase Productivity ◽

Minerals Production ◽

Completely Randomized Design ◽

Number Of Branches

Mungbean is one of the strategic annual food crops that needed by Indonesian people because of the high protein and minerals. Production of mungbean in Indonesia always decreases. Cultural improvements are needed to increase productivity i.e by appropriate fertilization and plant density. The experiment objective was to find out the optimum dosage of organic fertilizer and plant density for the growth and yield of mungbean. The experiment was carried out using factorial completely randomized design (CRD). The first factor treatments were organic fertilizer which consisted of 0, 5, 10, 15, and 20 ton ha-1, while the second-factor treatments were planted density which consisted of 1 and 2 plants in the hole. Organic fertilizer of 5 ton ha-1 gave the best result for plant height, number of branches, flowering age, number of pods, fresh weight and dried straw, weight of 100 seeds, number and weight of seeds, small of seeds number and P nutrient uptake of the plant. The 2 plants per hole gave the best result for branches number, pods number and number of small seeds. Application of 5 ton ha-1 organic fertilizer and 1 plant per hole gave better yield. No interaction of organic fertilizer and plant density to mungbean growth and yield.

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Pengaruh Campuran Pasir dan Serat Aren pada Kailan (Brassica oleraceae) dengan Hidroponik Substrat

Agrosains: Jurnal Penelitian Agronomi ◽

10.20961/agsjpa.v16i1.18908 ◽

2014 ◽

Vol 16 (1) ◽

pp. 19

Author(s):

Samanhudi Samanhudi ◽

Dwi Hardjoko ◽

Riandy Adhitya

Keyword(s):

Wood Fiber ◽

Dry Weight ◽

Fresh Weight ◽

Randomized Design ◽

The Media ◽

Number Of Leaves ◽

Completely Randomized Design ◽

Brassica Oleraceae ◽

Media Mix ◽

Leaf Greenness

Wood fiber waste of arenga produced from starch palm industry. It is not handled properly so that could be potentially cause problems for the surrounding community. Wood fiber waste of arenga is potentially used as a medium for hydroponics. The waste can be utilized to get a new composition of hydroponic media. This study aims to determine the effect of a mixture of sand with arenga fiber waste. This research was carried out by using a mixture of sand and arenga wood fiber waste as a medium. This is an experimental study using a completely randomized design. This study aims to determine the effect of a mixture of sand and arenga fiber waste for kailan growth. The results showed that the mixture of sand and arenga wood fiber waste has no effect on kailan growth. The combination of mixtures of sand and arenga fiber waste showed no interaction. Observations on plants such as plant height, number of leaves, leaf greenness levels, the fresh weight of crop stover and stover dry weight of the plant, showed a row of the highest results in the media mix washed sand, washed sand and rice husk

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Postharvest aspects of roses

Ornamental Horticulture ◽

10.14295/oh.v23i2.990 ◽

2017 ◽

Vol 23 (2) ◽

pp. 160 ◽

Cited By ~ 2

Author(s):

Elka Fabiana Aparecida Almeida ◽

Ariane Castricini ◽

João Batista Ribeiro Reis ◽

Leandra Oliveira Santos ◽

Maria Geralda Vilela Rodrigues ◽

...

Keyword(s):

Weight Loss ◽

Respiratory Activity ◽

Fresh Weight ◽

Experimental Control ◽

Color Changes ◽

Weight Variation ◽

Randomized Design ◽

Completely Randomized Design

This study aimed to evaluate respiratory activity, color changes and fresh weight variation of ‘Carola’ (red), ‘Avalanche’ (white) and ‘Avalanche Chá’ (tea) roses for seven days after harvest. Respiratory activity, coloration of petals and fresh weight loss were evaluated. Treatments were composed of three rose cultivars and seven days of evaluation, in a 3 x 7 factorial and a completely randomized design with four replicates of two flowers per plot. To determine the respiratory activity, in addition to the four replicates, an “experimental control” was used as a fifth replicate without roses. ‘Avalanche’ and ‘Avalanche Chá’ roses with petals of similar luminosity showed no browning during days after harvest, but are distinct in terms of chromaticity. ‘Carola’ rose has less shiny petals. On harvest day, the respiratory activity is elevated and reduces later until the fourth day, in which there is elevation of this parameter again coinciding with high fresh weight loss. During days after harvest, small changes in the color of petals were observed; however, the main changes were observed in respiratory activity and fresh weight loss.

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