scholarly journals Shoot nutrient contents and vegetative melon plants growth at different pH levels of the nutrient solution

2019 ◽  
pp. 674
Author(s):  
José Maria Da Silva ◽  
Bruno do Nascimento Silva ◽  
Gustavo Andrés Iglesias Barrera ◽  
Rafaela da Silva Arruda ◽  
Paulo Cezar Rezende Fontes, Paulo Roberto Gomes Pereira
Keyword(s):  
Nutrient Solution ◽  
Mineral Content ◽  
Dry Weight ◽  
Solution Ph ◽  
Root Volume ◽  
Nutrient Contents ◽  
Leaf Nutrients ◽  
Randomized Design ◽  
Iron And Zinc ◽  
Completely Randomized Design

Melon plants development are determined by nutrient availability in the nutrient solution which is markedly influenced by the solution pH. The objective of this work was to evaluate the effects of hydroponic nutrient solution pH on growth and mineral content of melon plants. The plants were growth in nutrient solution at five pH levels (4, 5, 6, 7 and 8) in a completely randomized design with three replicates. At 40 days after transplanting were evaluated shoot and roots fresh and dry weight as well as the root volume. Leaf nutrients contents was also determined. It was concluded that it is essential to keep the nutrient solution pH at 6.0 in order to obtain plants with high leaf number, fresh and dry root mass, root volume and iron and zinc contents in the leaves.

scholarly journals Cooling and concentration of nutrient solution in hydroponic lettuce crop

2013 ◽  
Vol 31 (2) ◽  
pp. 287-292 ◽  
Author(s):  
Nilton N Cometti ◽  
Diene M Bremenkamp ◽  
Karla Galon ◽  
Leonardo R Hell ◽  
Marinaldo F Zanotelli
Keyword(s):  
Electrical Conductivity ◽  
Nutrient Solution ◽  
Growth And Development ◽  
Maximum Temperature ◽  
Root Volume ◽  
Espírito Santo ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Espirito Santo

The study was conducted in greenhouse at horticulture department of the Instituto Federal do Espírito Santo, Campus Itapina, Colatina, northwestern Espírito Santo state, Brazil, with the objective of evaluating the effect of cooling and electrical conductivity of nutrient solution on growth and development of lettuce cv. Vitória de Santo Antão in hydroponics. The study was conducted in a completely randomized design with two factors (control of the maximum temperature of the nutrient solution: 26ºC and without control; and electrical conductivity, EC, of the solution: 1, 2 and 3 dS m-1) with three repetitions. The plants were harvested fifty-two days after sowing (DAS). We evaluated the dry and fresh mass of leaves, stems and roots, stem and root length, root volume and plant water content (%). The temperature of the nutrient solution influenced the behavior of lettuce influenced by the electrical conductivity, showing that the increase of the EC did not reduce the lettuce productivity when the maximum temperature of the nutrient solution is limited, which in this experiment was tested at 26ºC. The cooling of the nutrient solution provided greater accumulation of mass and a higher water percentage in plants, increasing the productivity of hydroponic lettuce in tropical climate.

scholarly journals Brachiaria sp yield and nutrient contents after nitrogen and sulphur fertilization

2013 ◽  
Vol 37 (4) ◽  
pp. 997-1003 ◽  
Author(s):  
Reges Heinrichs ◽  
Fernanda Grecco Grano ◽  
Leda Gobbo de Freitas Bueno ◽  
Cecílio Viega Soares Filho ◽  
Jailson Lara Fagundes ◽  
...  
Keyword(s):  
Calcium Sulfate ◽  
Dry Weight ◽  
Pastoral Systems ◽  
Brachiaria Decumbens ◽  
Nutrient Contents ◽  
Green Leaves ◽  
Production Factors ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Total Dry Weight

Among the production factors, adequate fertilization is an important tool to raise the productivity of pastoral systems and consequently increase the share of Brazil in the supply chain of primary agricultural products at the global level. The objective of this study was to evaluate the interaction of nitrogen and sulfur fertilization in BRACHIARIA DECUMBENS: Stapf. The experiment in pots with Dystrophic Oxisol was evaluated in a completely randomized design with four replications in a 5 x 3 factorial arrangement, involving five N doses (0, 100, 200, 400, and 800 mg dm-3) in the form of ammonium nitrate and three S doses (0, 20 and 80 mg dm-3) in the form of calcium sulfate, with a total of 15 treatments. In the treatments with low S dose, calcium was provided as calcium chloride, to ensure a homogeneous Ca supply in all treatments. The results showed that the tiller production and dry weight of green leaves and of stems + sheaths and total dry weight were favored by the combination of N and S fertilizer, while the proportion of dry leaves was reduced. Nitrogen fertilization raised the N contents in green leaves and stems + sheaths and reduced K contents in fresh and dry leaves. The response to S rates in the N content of green leaves was quadratic.

scholarly journals Luehea divaricata Martius et Zuccarini Is a Sensitive Species to Aluminum, Not Presenting Phytoremediation Potential

2018 ◽  
Vol 10 (3) ◽  
pp. 265
Author(s):  
Gessieli Possebom ◽  
Aline Soares Pereira ◽  
Athos Odin Severo Dorneles ◽  
Victória Martini Sasso ◽  
Liana Veronica Rossato ◽  
...  
Keyword(s):  
Nutrient Solution ◽  
Biochemical Parameters ◽  
Dry Weight ◽  
Guaiacol Peroxidase ◽  
Solution Ph ◽  
Hydroponic System ◽  
Randomized Design ◽  
Peroxidase Enzyme ◽  
Complete Nutrient Solution ◽  
Physiological And Biochemical

The aim of this work was to evaluate the effect of different concentrations of aluminum (Al) on physiological and biochemical parameters of Luehea divaricata seedlings grown in a hydroponic system under greenhouse conditions to verify the possible tolerance to Al or phytoremediation potential of this species. Seeds of Luehea divaricata were placed to germinate in commercial substrate and after 30 days the seedlings were transferred to a hydroponic system with a complete nutrient solution, pH at 4.5±0.1, with daily adjustment. After 20 days of acclimatization, homogenous plants were selected and transferred to a new nutrient solution (without phosphorus (P) and pH at 4.5±0.1) with different concentrations of Al: 0, 25, 50, 75 and 100 mg L-1, each treatment being composed of 10 replicates of one plant each. The experiment was conducted in a completely randomized design. After seven days of exposure to the treatments, plants were collected for physiological and biochemical analyzes. Aluminum promoted a significant reduction in fresh and dry weight of roots, stems and leaves; in plant height; leaf number; leaf area; and pigment content. On the other hand, Al promoted an increase in lipid peroxidation and guaiacol peroxidase enzyme activity. Therefore, the presence of Al in the growth medium, for the studied conditions, altered significantly both physiological and biochemical parameters in Luehea divaricata seedlings, presenting a sensitive behavior to this element. Due to these characteristics, the studied species does not show phytoremediation potential.

scholarly journals Growth and P absorption of Fibraurea tinctoria lour in peat soil with an amendment

2021 ◽  
Vol 905 (1) ◽  
pp. 012099
Author(s):  
A T Sakya ◽  
Sulandjari ◽  
W S Dewi
Keyword(s):  
Peat Soil ◽  
Dry Weight ◽  
Wild Plant ◽  
Peat Soils ◽  
Root Volume ◽  
Combination Treatments ◽  
Randomized Design ◽  
Npk Fertilizer ◽  
Completely Randomized Design ◽  
P Absorption

Abstract One of the ways to maintain and increase immunity during the COVID-19 pandemic is by consuming the medicinal plant. Indonesia has many medicinal plants, one of which is ‘akar kuning’ (Fibraurea tinctoria Lour). F. tinctoria is a wild plant commonly found in Kalimantan and has not been widely cultivated. Therefore, efforts to develop need to be made, especially in peat soil. An approach to addressing the problem in peat soils is adding zeolite amendments and NPK fertilizer to increase growth. Therefore, preliminary research was conducted to determine the growth and P absorption of F tinctoria in peat soil. The study used Zeolite (0 and 2.5 g polybag−1) and NPK fertilizer with three levels (3, 6, 9 g plant−1). The combination treatments were arranged factorially on a completely randomized design. The study shows different responses to the leaf number, root volume, and root dry weight. Tendril length and P absorption increased along with the increase of Zeolite and NPK application.

scholarly journals Morfologia radicular de Zantedeschia influenciada pela deficiência múltipla de nitrogênio e fósforo

2015 ◽  
Vol 21 (3) ◽  
pp. 317 ◽  
Author(s):  
Katiúcia Dias Fernandes ◽  
Patrícia Duarte de Oliveira Paiva ◽  
Carlos Maurício Paglis ◽  
Janice Guedes de Carvalho ◽  
Aiesca Cecília Resende Santos ◽  
...  
Keyword(s):  
Mineral Composition ◽  
Nutrient Solution ◽  
Root Systems ◽  
Dry Mass ◽  
Plant Roots ◽  
Nitrogen And Phosphorus ◽  
Root Volume ◽  
Zantedeschia Aethiopica ◽  
Randomized Design ◽  
Completely Randomized Design

The knowledge of the phenomena that occur in root systems developed under nutritional deficiency is still limited. Among the factors that may raise doubt in the identification of nutritional state, multiple deficiencies stand out. This study aimed to evaluate the effect of multiple and single omission of nitrogen and phosphorus in nutrient solution on roots development in Zantedeschia aethiopica. For that, plants were cultivated over a period of eight months in treatments with complete Hoagland and Arnon solution (1950), with the omission of N (Nitrogen), omission of P (Phosphorus), omission of NP and nutrient solution with NP at concentrations of 25%, 50% and 75%, totaling seven treatments with four replications, in a completely randomized design. At the end of the experiment period, length, root volume, root dry mass and density were evaluated. Plants grown in solution with omission of P and with 25NP were those that most exploited space with their roots. The diameter of roots was influenced by multiple deficiencies of macronutrients. The mineral composition of the plant roots is influenced by multiple deficiencies of N and P.

Effect of planting date and density on calendula and peppermint herbs

2014 ◽  
Vol 1 (1) ◽  
pp. 25-29
Author(s):  
Rahim Mohammadian ◽  
Behnam Tahmasebpour ◽  
Peyvand Samimifar
Keyword(s):  
Mutual Effect ◽  
Dry Weight ◽  
Planting Date ◽  
Mass Reduction ◽  
Flower Number ◽  
Planting Dates ◽  
Randomized Design ◽  
Significant Difference ◽  
Completely Randomized Design ◽  
Total Maximum

A factorial experiment was conducted with a completely randomized design to evaluate the effects of planting date and density on calendula herbs and peppermint. It had 3 replicates and was done in Khosroshahr research farm, Tabriz in 2006. Under studied factors were: 3 planting dates (10 May, 25 May and 10 June) in 4 densities (25, 35, 45, 55) of the plant in square meters. The results of variance a nalysis showed that there was 1% probability significant difference between the effects of planting date and bush density on the leave number, bush height and the bush dry weight. But the mutual effect of the plant date in mentioned traits density was insignificant. Regarding the traits mean comparison, the total maximum dry weight was about the 55 bush density in mm. Also, the bush high density in mm causes the bush growth and its mass reduction. When there is the density grain, the flower number will increase due to bush grain in surface unit. Overall, we can conclude that 10 June planting and 45 bush density in mm is the most suitable items and results in favored production with high essence for these crops.

Respon Akar Bibit Aren Genjah (Arenga pinnata) Di Pembibitan Pada Pemberian Dosis dan Interval Pupuk Organik Cair Nasa

2018 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Yetti Elidar
Keyword(s):  
Organic Fertilizer ◽  
Dry Weight ◽  
Treatment Combination ◽  
Root Dry Weight ◽  
Randomized Design ◽  
Dose Study ◽  
Palm Sugar ◽  
Wet Weight ◽  
Completely Randomized Design ◽  
Leaf Dry Weight

Research on the response of roots of palm sugar palm seeds (Arenga pinnata) in nurseries at doses and intervals of Nasa liquid organic fertilizer. Aims to determine the dosage, interval and combination of dosages and fertilization intervals with Nasa liquid organic fertilizer which can provide the best dry weight of the roots in the nursery. The research design used was a Completely Randomized Design (CRD) with 3x3 factorial experiments and each treatment was repeated 8 (eight) times, consisting of: the first factor was the treatment of POC Nasa dose in a concentration of 3 cc POC Nasa per liter of water (D) consists of 3 levels, namely: d1 = 300 ml POC Nasa, d2 = 400 ml POC Nasa, d3 = 500 ml POC Nasa, while the second factor is the treatment of POC Nasa Interval (I) consisting of 3 levels, namely: i1 = 2 once a week, i2 = once every 3 weeks, i3 = once every 4 weeks. The results of the POC Nasa dose study had a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level are: d2 (400 ml of Nasa liquid organic fertilizer), the interval of liquid organic fertilizer Nasa has a significant effect on leaf wet weight, leaf dry weight, root wet weight and root dry weight. The best dose at this level is: i1 (once every 2 weeks). The treatment combination has no significant effect on all parameters. 

scholarly journals Effect of NPK fertilization on production and leaf nutrient content of eucalyptus minicuttings in nutrient solution

2011 ◽  
Vol 35 (1) ◽  
pp. 249-254
Author(s):  
José Pereira Carvalho Neto ◽  
Enilson de Barros Silva ◽  
Reynaldo Campos Santana ◽  
Paulo Henrique Grazziotti
Keyword(s):  
Experimental Design ◽  
Nutrient Solution ◽  
Plant Material ◽  
Management Practice ◽  
Dry Weight ◽  
Nutrient Content ◽  
Fractional Factorial ◽  
Nutrient Contents ◽  
Adequate Nutrient ◽  
Npk Fertilization

Adequate nutrient levels in plants vary according to the species or clone, age and management practice. Therefore, adjustments of the nutrient solution are often necessary according to the plant material for multiplication. This study aimed to evaluate the influence of NPK fertilization on production and leaf nutrient contents of eucalyptus cuttings in nutrient solution. The study was conducted from November 2008 to January 2009 in a greenhouse. The experimental design was completely randomized fractional factorial (4 x 4 x 4)½, with a total of 32 treatments with three replications. The treatments consisted of four doses of N (50, 100, 200 and 400 mg L-1) as urea, P (7.5, 15, 30 and 60 mg L-1) in the form of phosphoric acid and K (50, 100, 200 and 400 mg L-1) in the form of potassium chloride in the nutrient solution. Only the effect of N alone was significant for the number and dry weight of minicuttings per ministump, with a linear decreasing effect with increasing N levels. The highest number of cuttings was obtained at a dose of 50, 7.5 and 50 mg L-1 of N, P and K, respectively.

scholarly journals Perlakuan Berbagai Dosis Pupuk ZA Pertumbuhan Dan Hasil Tanaman Bayam Merah (Amaranthus gangeticus)

2021 ◽  
Vol 5 (2) ◽  
pp. 180
Author(s):  
Edy Kustiani ◽  
Mariyono Mariyono ◽  
Bela Citra Ayuningtyas
Keyword(s):  
Analysis Of Variance ◽  
Nutritional Value ◽  
Environmental Design ◽  
Dry Weight ◽  
Growth And Yield ◽  
Dose Treatment ◽  
Randomized Design ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
The Ideal

Red spinach (Amaranthus gangeticus) is one of the most popular vegetables because of its high nutritional value and easy cultivation. Efforts to increase the production of red spinach are to fertilize to meet the needs of both macro and micronutrients. This study aimed to determine the effect of ZA fertilizer dose on the growth and yield of red spinach. The environmental design used was a non-factorial, completely randomized design with four replications. The factors tested were the dose of ZA fertilizer which consisted of 6 levels, namely: without ZA fertilizer (D0); 0.4 gr/polybag (D1); 0.8 gr/polybag (D2); 1.2 gr/polybag (D3); 1.6 gr/polybag (D4); 2 gr/polybag (D5). The data obtained were analyzed using analysis of variance, and if the results were significantly different, the BNT test was continued at a 5% level. The growth and yield of red spinach showed significant differences due to the ZA fertilizer dose treatment. The ZA fertilizer dose treatment of 1.2 g/polybag (D3) resulted in the highest plant height, the number of leaves, and leaf area of red spinach at 14, 21, and 28 days after planting. The ZA fertilizer dose treatment of 1.2 g/polybag (D3) resulted in the highest wet and dry weight plants of 49.15 and 4.38 grams, respectively. The ZA 1.2 gr/polybag dose is the ideal dose to increase the productivity of red spinach.Bayam merah (Amaranthus gangeticus) termasuk sayuran penting yang disukai masyarakat karena bernilai gizi tinggi dan mudah pembudidayaannya. Upaya peningkatan hasil bayam merah salah satunya dengan pemupukan untuk menambah nutrisi yang dibutuhkan tanaman. Tujuan dari penelitian ini adalah mempelajari respon pertumbuhan dan hasil tanaman bayam merah pada perlakuan dosis pupuk ZA. Pelaksanaan penelitian ini menggunakan Rancangan Acak Lengkap (RAL) satu faktor. Faktor yang diujikan adalah dosis pupuk ZA, terdiri 6 taraf, yaitu: tanpa pupuk ZA (D0); 0.4 gr/polybag (D1); 0.8 gr/polybag (D2); 1.2 gr/polybag (D3); 1.6 gr/polybag (D4); 2 gr /polybag (D5). Percobaan dilakukan dengan ulangan sebanyak 4 kali. Analisis data menggunakan analysis of variance (ANOVA), apabila berbeda nyata dilanjutkan uji Beda Nyata Terkecil (BNT) taraf 5%. Perlakuan dosis pupuk ZA berpengaruh nyata terhadap pertumbuhan dan hasil tanaman bayam merah. Perlakuan dosis pupuk ZA 1.2 gr/polybag (D3) menghasilkan tinggi, jumlah dan luas daun tanaman bayam merah tertinggi pada pengamatan umur 14, 21, dan 28 HST. Dosis pupuk ZA 1.2 gr/polybag (D3) juga menunjukkan berat basah dan berat kering tanaman tertinggi sebesar 49.15 dan 4.38 gram. Dosis ZA 1.2 gr/polybag merupakan dosis ideal untuk meningkatkan produktivitas tanaman bayam merah.

scholarly journals Efektifitas Jamur Metharhizium anisopliae Menghambat Perkembangan Hama Uret pada Tanaman Cincau Hitam (Mesona palustris BL)

2019 ◽  
Vol 20 (1) ◽  
pp. 1-5
Author(s):  
Wuye Ria Andayanie
Keyword(s):  
Plant Growth ◽  
The Body ◽  
Diversity Analysis ◽  
Root Volume ◽  
Average Growth ◽  
Straw Mulch ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Average Plant ◽  
Range Test

Black grass jelly plants can be used as conservation plants. However, uret pests (Leucopholis rorida F.) are often complained that eat the base of the stems, flowers and roots at night. This study aims to determine: 1) the effect of M. anisopliae fungi on uret pests, (2) the level of susceptibility of uret pests, and (3) M. anisopliae fungal effectiveness on uret pests. This study used a completely randomized design (CRD) with 4 treatments and 5 replications. Data from the observations were analyzed using analysis of variance (ANOVA) with Duncan's Multiple Range Test (DMRT) 5% test carried out when diversity analysis showed a real effect. Uret mortality monitoring will be carried out after the application of fungi. by observing each uret and calculating the amount of uret mortality and average plant growth. The highest percentage of second instar larvae from uret was found in treatment P4 (manure and fungi were incubated for 72 hours at the next temperature of 28 oC applied to the field with straw mulch) which was 82, 98% at 12 days after application of fungi. The average growth of plants consisting of: root length, root volume, stem diameter and number of shoots was also found in treatment P4 (manure and fungi were incubated for 72 hours at the next 28 oC, applied to the field with straw mulch), respectively amounting to 12.45; 5.70; 1.88; 12,15. Dead larvae emit fluids such as ethanol and their bodies are weak, then the body dries and hardens and stiffens, like mummies and fungi forming green sporulation. Keywords—: black grass jelly plants; Leucopholis rorida F;Metharhizium anisopliae; mortality;effectiveness

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