scholarly journals Effects of Shade and Biochar Application on the Quercetin Content of Longevity Spinach in Inceptisol

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Angga Prasetya ◽  
Sri Nuryani Hidayah Utami ◽  
Eko Hanudin

Traditional medicines have been used in both developed and developing countries for a long time, one of which is longevity spinach (Gynura procumbens). Its plants are one type of plant that is used by the community to treat various diseases with their flavonoid content. This plant produces various flavonoids, such as quercetin, which can be optimized by providing shade and increasing nitrogen nutrients by giving biochar and fertilizing. This study aimed to determine the effects of biochar, shade, and fertilizer on the growth and quercetin content of Gynura procumbens plants. This research was arranged in a randomized complete block design (RCBD) with two factors. The first factor was the administration of biochar at four doses, consisting of B0 (without biochar), B10 (biochar 10 tons/ha), B15 (biochar 15 tons/ha), and B20 (biochar 20 tons/ha). Meanwhile, the second factor was the intensity of the shade with three levels of treatment, namely, I0 (without shade), I50 (50%), and I70 (70%). The results showed that the addition of 15 ton/ha of biochar with 70% shade increased the quercetin content by 0.51%.

2020 ◽  
Vol 47 (3) ◽  
pp. 326-332
Author(s):  
Syahdin Launuru ◽  
Ade Wachjar ◽  
Dan Ani Kurniawati

Application of right dosage of fertilizer and concentration of plant growth regulator are supporting factor of clove growth. This study was aimed to obtain the best combination of organic-inorganic fertilizer, the best triacontanol concentration and both interactions for increasing clove growth. This study used a Randomized Complete Block Design (RCBD) with two factors. The first factor was the organic-inorganic fertilizer dosage package that consisted of 6 levels, i.e no fertilizer, 100% recommended dosage of inorganic fertilizer (r.d.i.f), 25% recommended dosage of organic fertilizer (r.d.o.f) + 75% r.d.i.f, 50% r.d.o.f + 50% r.d.i.f, 75% r.d.o.f + 25% r.d.i.f, 100% r.d.o.f. The second factor was the concentration of triacontanol that consisted of 3 levels, i.e no triacontanol, 2 mg L-1 and 4 mg L-1. The results showed that the application of 25% r.d.o.f + 75% r.d.i.f produced the best clove growth, but it was not significantly different from the combination treatment of the two other types of fertilizer as indicated by the greatest improvement on stem diameter, branches number, leaf area, chlorophyll a, chlorophyll b, total chlorophyll and carotenoids. Clove plants did not respond to the application of triacontanol at a concentration of 2 mg L-1, but gave a negative response to the application of triacontanol 4 mg L-1 on the plant height and leaf area variables. The interaction of the two factors did not have significant effects on all variables. Keywords: chlorophyll, morphology, nutrient dynamics, physiology, vegetative growth  


2018 ◽  
Vol 7 (3) ◽  
pp. 93
Author(s):  
Yemima Dwi Gita Sembiring ◽  
Komang Ayu Nocianitri ◽  
Agus Selamet Duniaji

This research was conducted to determine the effect of sugar contentration and fermentation time to the charateristics of mung bean probiotic drink with the addition of Lactobacillus rhamnosus SKG 34. The Randomized Complete Block Design (RCBD) with two factors was used in this research. First factor was the sugar concentration which consists of three levels 2.5%, 5%, 7.5%. Second factor was the fermentation time which consists of five levels 8 hours, 10 hours, 12 hours, 14 hours and 16 hours. The parameters observed in this research were sugar level, total lactic acid, pH, total lactic acid bacteria (LAB), and sensory acceptances such as colour, flavor, taste and overall acceptance. The result of this research showed that the sugar concentration had significant effect to the total sugar but had no significant effect to the total lactic acid and pH. The fermentation time had significant effect to the pH, total lactic acid and total sugar. The interaction of sugar concentration and fermentation time had no significant effect to the characteristic of pH, total lactic acid, total sugar, color, flavor, taste and overall acceptance. Mung bean probiotic drink with the best characteristic was obtained at 5% of sugar concentration and 8 hours fermentation time with criteria sugar concentration levels at 8.06 %, total lactic acid 0.27 %, pH at 5.29, and 1.6 x 108 CFU/ml total LAB with sensory results state that the colour was slightly liked, the flavor was slightly liked, the taste was preferred and slightly sweet, and overall acceptance was preferred.


2020 ◽  
Vol 3 (2) ◽  
pp. 71
Author(s):  
Fatiani Manik ◽  
Rasiska Tarigan ◽  
Susilawati Barus

The quality of seed needs to be considered in carrot seed production to maintain its productivity. The research aims to find out the response of stecklings age and plant spacing on carrot seed quality and production. This research was held on July 2018 – April 2019 in Berastagi field trial (1340 m MSL). The experiment used Randomized Complete Block Design (RCBD) with two factors, i.e., stecklings age (2 and 3 months) and plant spacing (25, 50, 75, and 100 cm), replicated four times (32 experiment units), 10 plants from each experiment units were taken as samples. The result showed that stecklings age and plant spacing were affected to plant vegetative and generative stages. The combination of 2-month stecklings and 50 cm plant spacing increased the number of secondary umble, if compared to cultivation, which was generally used by the farmer (3-month stecklings and 25 cm plant spacing). The best quality of carrot seed was obtained from the combination of 3-month stecklings and 50 cm plant spacing.


AGRICA ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
I Wayan Sunarta

Diversification of plant species is needed to anticipate price fluctuation of vegetables. Intercropping system compared to monoculture can give more benefits to farmers. The arrangement of plant spacings of sweet corn and cabbage variety is expected to result in higher yields and benefits in intercropping. The field experiment, which had the objective to study the effects of plant spacing of sweet corn and cabbage variety on yields of sweet corn and cabbage in the intercropping system, had been conducted from March to July 2008. The experiment was carried out at the dryland farming area at Candikuning Village, district of Baturiti, Tabanan regency, 1.200 m asl. In the experiment, a randomized complete block design with two factors namely plant spacing of sweet corn (120 cm x40 cm, 180 cm x 40 cm and 240 cm x 40 cm) and variety of cabbage (Green Nova and Summer-Autumn) were used. Plant spacing of cabbage was 60 cm x 40 cm. All treatments were replicated four times. The results of the experiment showed that the effect of interaction between plant spacing of sweet corn and cabbage variety in intercropping was not significant on yields of sweet corn and cabbage. Individually, sweet corn plant spacing of 120 cm x40 cm gave the highest fresh weight of cob without husk (10,91 t ha"'), which was 44.50% and 80.93% respectively higher than the spacing of ! 80 cm x 40 cm and 240 cm x 40 cm. The spacing of 180 cm x 40 cm resulted in not the significantly different fresh weight of cob with husk but gave the highest fresh weight of cabbage heads (56.101 ha'1), which was 27.36% higher than that at sweet corn spacing of 120 cm x 40 cm and was not significantly different from that at 240 cm x 40 cm. Cabbage variety Green Nova gave the highest head (56.101 ha1), which was 14.48% higher than variety Summer-Autumn. Intercropping between cabbage variety Green Nova and Sweet corn at 180 cm x 40 cm spacing resulted in the highest benefit (Rp. 20,488125 t ha'1), which was Rp. 3,335500 higher than the average benefit of cabbage monoculture. The efficiency of land use in intercropping was higher (LER: 1.69) than in monoculture (LER: 1). It is suggested to use cabbage variety Green Nova intercropped with sweet corn at I 80 cm x 40 cm spacing. An experiment studying the effect of cabbage intercropped with sweet corn and other short season vegetables planted after harvesting cabbages is also suggested.


2013 ◽  
Vol 1 (1) ◽  
pp. 89
Author(s):  
Tatiek Kartika Suharsi ◽  
Namira Andiani

<p style="text-align: justify;">The objectives of this research was to know the effect of growing media composition and concentration level of GA3, on growth of Sansevieria trifaciata Prain ‘Laurentii’ shoots. The research was conducted at Leuwikopo Experiment Field, IPB, Darmaga from March until July 2011. The research used Randomized Complete Block Design (RCBD) with two factors and three replications, Sansevieria trifaciata Prain ‘Laurentii’ variegata leafs used in this research. The first factor was growing medium composition, they were charcoal husk:soil:compos (1:2:1); pasir malang:soil:compos (2:2:1); cocopeat:soil:compos (3:2:1). The second factor was concentration of GA3 treatment consist of three level, 0 ppm; 100 ppm; 500 ppm. Charcoal husk and pasir malang gave good effect for growth of young shoots. Concentration of GA3 until 500 ppm had no significant effect on young shoot growth but it had significant effect on roots growth. The best interaction treatment effect on young shoots growth was charcoal husk medium and 500 ppm concentration of GA3.</p><p>Keywords: charcoal husk, cocopeat, leaf cutting, pasir malang</p>


2017 ◽  
Vol 1 (1) ◽  
pp. 56
Author(s):  
Muhamad Syukur ◽  
Sobir , ◽  
Siti Marwiyah ◽  
Awang Maharijaya ◽  
Anas D. Susila ◽  
...  

The pepper is very important horticultural commodities. The purpose of this research was to study the advantagesof Anies IPB varieties and develop the description. Anies IPB was the result of the selection of segregating populations from the crosses of IPB C120 (as the female parent) and IPB C5 (as the male parent). The experiments were performed in four locations namely Boyolali (Central Java), Sumedang (West Java), and Bogor (West Java). The experimental used the randomized complete block design (RCBD) two factors with three replications. The replications nested within the locations. The first factor was 9 lines and 2 open pollinated varieties, and the second factor was the three locations. Each lines on each replicate in each location were planted 24 plants. The results showed that the superiority of Anies IPB varieties were (1) The productivity of Anies IPB was higher than the check varieties. Productivity can reach 18.6 tons ha-1. (2) Anies IPB has fruit that was longer than the Tit Super and Trisula. (3) Anies IPB has early-harvesting time, ranged between 76.67 - 84.67 days after planting. (4) Anies IPB has a high level of stability and classified into the dynamic stability, which means that veryadaptive to the optimum environment.Keyword: non hybrid, pepper productivity superiority, variety


Jurnal Agro ◽  
10.15575/157 ◽  
2015 ◽  
Vol 2 (1) ◽  
pp. 1-9
Author(s):  
Ratna Santi ◽  
Benny Joy ◽  
Regina Hindersah ◽  
Dedi Nusyamsi

Keberadaan logam Zn dalam jumlah tertentu di tailing pasca tambang akan berdampak pada rendahnya populasi mikroba tanah dan menghambat pertumbuhan tanaman. Aplikasi pemanfaatan fungi indigenus dari lahan tercemar merupakan salah satu usaha dalam memperbaiki sifat tanah untuk pertumbuhan tanaman. Penelitian ini bertujuan untuk mengetahui pengaruh inokulasi fungi dan toksisitas Zn terhadap pertumbuhan jagung pada fase VE-V9 di media tailing steril.  Fungi diisolasi dari tailing lahan pasca penambangan timah di Sungailiat  Bangka. Tiga isolat dari 15 isolat dipilih untuk pengujian pengaruh inokulasi fungi terhadap pertumbuhan jagung. Percobaan menggunakan Rancangan Acak Kelompok(RAK) dua faktor dengan perlakuan jenis fungi dan konsentrasi Zn. Isolat yang digunakan toleran terhadap Zn pada konsentrasi 0-25 ppm dan mampu menghasilkan fitohormon. Hasil percobaan di rumah kaca menunjukkan bahwa inokulasi fungi nyata memperbaiki pertumbuhan jagung, dibandingkan tanpa inokulan. Serapan tertinggi ditunjukkan oleh isolat R 7J1, namun pertumbuhan jagung terbaik didapatkan dari inokulasi isolat B 2J1. The existence of Zn metal in a certain amount in the post tin mine tailings will result in low soil microbial populations and inhibit plant growth. Application of indigenous fungi utilization on contaminated land is one effort to improve soil properties for plant growth.This study aimed to determine the effect of inoculation of fungi and toxicity of zinc on the growth of corn in the phase of VE-V9 in sterile tailings medium. Fungi were isolated from post tin mining tailings tin lands in Bangka Sungailiat. Three isolates from 15 isolates were selected to test the effect of fungal inoculation on the growth of corn. Experiment used a Randomized Complete Block Design (RCBD) two factors with fungi and Zn concentration treatments.Tolerant isolates used were at a concentration of 0-25 ppm Zn and capable to produce phytohormones. Result of experiment in greenhouse showed that fungal inoculation substantially improved the growth of maize, compared with no inoculant.The highest uptake was shown by isolates of R 7J1, but the best corn growth inoculation isolates obtained from B 2J1.


2021 ◽  
Vol 9 (1) ◽  
pp. 10-19
Author(s):  
Tiara Kartika Sari ◽  
Muhammad Rif’an ◽  
Sakhidin Sakhidin

Rice is the primary food commodity in Indonesia. To increase the rice production, urea fertilizer has been excessively used, specifically on marginal land. However, it has no desired effect on the plant’s Nitrogen uptake due to volatilization. Previous studies suggest the use of zeolite to be mixed with urea to reduce the volatilization rate. This study aimed to determine the effect of six NP-SR (Nitrogen Phosphorus Slow Release) fertilizer compositions (without NP-SR; 20.69-0; 19.7-5; 17.27-10; 15.9-15; and 18.94-20) on soil chemical properties, nitrogen efficiency, and paddy rice yield on Ultisols at three waterlogging levels (0.5 cm, 3 cm, and 5 cm). The study was an experiment arranged in a Randomized Complete Block Design (RCBD) consisting of two factors, which were waterlogging levels and NP-SR fertilizer compositions. The results showed that waterlogging treatments significantly affected soil chemical properties in the initial vegetative and harvest phases. It can be concluded that the treatment of flooding (up to 3 cm) and fertilizer (NP-SR of 15.90-15) application could significantly reduce the volatilization rate, increase the efficiency of N fertilizer, and increase rice yield.


2021 ◽  
Vol 923 (1) ◽  
pp. 012076
Author(s):  
Abdullah K.J. Al-Jubouri ◽  
Hajar A. H. Khafaji

Abstract A field experiment was carried out at the second agricultural research and experiment station of the College of Agriculture, Muthanna University, for the 2019-2020 agricultural season, with the randomized complete block design RCBD, using two factors and three repeats, that’s to study the effect of adding the bio inoculant from Bacillus megaterium bacteria, and when loaded the bacterium with the immobilization inoculation technology on zeolite, sodium alginate, Agarose and bentonite and it’s symboled of M0, M1, M2 and M3 respectively to compare its efficiency in increasing potassium available and growth of wheat plant variety Eba’a 99. The experiment included two comparison treatments, the first being B0 without the addition of the bacterial inoculant and the second comparative treatment being B1 adding the bacterial vaccine. At the end of the experiment, potassium concentration was estimated in soil after cultivation. The results showed a clear moral effect of the use of the immobilized bacterial inoculant in Nitrogen available at a 15.65 (mg N kg−1 soil) and with an increase of 17.14%, Potassium available at a 289.2 (mg K kg−1 soil) and an increase of 6.79%, and the plant height was a rate of 84.87 cm and an increase of 9.41% and bio yield at 810.25 kg dunum−1 and an increase of 34.98%.


2020 ◽  
Vol 22 (2) ◽  
pp. 113-127
Author(s):  
TS Roy ◽  
MT Rahaman ◽  
R Chakraborty ◽  
M Mostofa ◽  
MS Rahaman

The experiment was conducted to study the effect of biochar on growth and yield of sesame. In the experiment, the treatment consisted of three varieties, viz., V1 = BARI Til- 2, V2 = BARI Til-3 and V3 = BARI Til-4, and five levels of biocharviz., B0= control (no biochar application), B1= 2 t ha-1, B2= 4 t ha-1, B3= 6 t ha-1 and B4= 8 t ha-1. The experiment was laid out in two factors randomized complete block design (RCBD) with three replications.Variety, application of different levels of biochar and their interaction showed statistically significant variation in plant height, number of leaves plant-1at 55 and 80 DAS and at harvest, capsules plant-1, seeds capsule-1, 1000-seed weight, seed yield, stover yield, biological yield and harvest index.The highest plant height (70.34, 110.95 and 109.84 cm at 55 and 80 DAS and at harvest respectively), number of leaves plant-1 (80.47, 116.70 and 94.54 at 55, 80 DAS and at harvest, respectively), number of branches plant-1 (3.60), capsules plant-1(80.47), number of seeds capsule-1(56.02),seed yield(1.07tha-1)andharvestindex(36.46%)were observed in the variety BARI Til-4 cultivated with the application of biochar @ 6 t ha-1 (V3*B3) and the lowest one was observed in variety BARI Til-2 with no biochar application (V1*B0).Biochar is effective for increasing growth and yield of sesame. Bangladesh Agron. J. 2019, 22(2): 113-127


Sign in / Sign up

Export Citation Format

Share Document