scholarly journals Screening of Cultivable Indigenous Fungi which Responsible for Decomposing of Rice Straw

2012 ◽  
Vol 17 (1) ◽  
pp. 61
Author(s):  
Soni Isnaini ◽  
Ainin Niswati ◽  
. Maryati

<p>The experiment was conducted to screen potentials indigenous fungi for rapid decomposing of rice straw.&nbsp; Seven isolates of dominant fungi were isolated from the burying rice straw on the 2.5 cm soil depth after 30 days incubation on the paddy fields. Five dominant isolates were tested for their potential to decompose rice straw by assessing their value of decreasing C/N ratio and dry weight of rice straw.&nbsp; Fungal inoculums treatments were arranged in a Completely Randomized Design with four replications.&nbsp; The results showed that the dominant cultivable fungi that isolated from decomposed rice straw were Trichoderma sp., Fusarium sp., Mucor sp., Aspergillus sp., and Penicillium sp.&nbsp; Among the tested fungi, Trichoderma sp. had the biggest ability to decompose rice straw compared to others indigenous fungi. The C/N ratio was reduced to 39.47 from an initial value of 73.33 of control treatment in 10 days of biodegradation process in laboratory scale, thus showing the potential of indigenous Trichoderma sp. for use in large-scale composting of rice straw.</p><p>Keywords: Cultivable, decomposer, indigenous fungi, rice straw</p><p>[<strong>How to Cite</strong>: Isnaini S, A Niswati and Maryati. 2012. Screening of Cultivatable Indigenous Fungi which Responsible for Decomposing of Rice Straw. J Trop Soils 17 (1): 61-66. doi: 10.5400/jts.2012.17.1.61]</p><p>&nbsp;</p><p>[<strong>Permalink/DOI:</strong> <a href="http://dx.doi.org/10.5400/jts.2012.17.1.61" target="_blank">www.dx.doi.org/10.5400/jts.2012.17.1.61</a>]</p>

2020 ◽  
Vol 8 (1) ◽  
Author(s):  
Eka Musrini ◽  
Abdurrani Muin ◽  
Burhanuddin Burhanuddin

Restoration and revegetation must be done to recover the post-mining land ecosystem. The strategy of one vegetative that could be applied to rehabilitate degraded the post-mining land is revegetation with the applications the organic and NPK fertilizer to improve the land conditions and choose the suitable of the plant. Terminalia catappa L is one of the plants classified as a pioneer species and can grow on the poor nutrient land and easy to cultivation. Research on the additions of cow dung as ameliorant and NPK fertilizer to improve the physical, chemical, and biological of tailings media in nursery to the growth of Terminalia catappa L. Treatment was given to the growth of seedlings of Terminalia catappa L using the Completely Randomized Design (RAL) with 2 (two) factor treatment. The first factor is NPK Fertilizer with 5 level treatment such as without Fertilizer (K0), 5 gr (K1), 10 gr (K2), 15 gr (K3), 20 gr (K4). The second factor is an organic compound from cow dung with 5 level treatment such us without cow dung (P0), 10 gr (P1), 20 gr (P2), 30 gr (P3), 40 gr (P4). Each level of treatment consisting of 3 replications so the amount of seedlings in this research is 75 seedlings. Data collected were short high (cm), stem diameter (mm), number of leaves and dry weight of the plant. The result of addition organic and NPK fertilizer on tailing media in nursery gave a significant effect on the growth of height, diameter, number of leaves and dry weight of Terminalia catappa L. The best result media treatment for all parameters is NPK fertilizer and cow dung with combination 20: 40 gr,  although almost all of the ameliorant treatment gave the better result if compare the control treatment without addition organic ameliorant.Keywords: ameliorant, organic and NPK Fertilizer, Tailings, Terminalia catappa L.


2019 ◽  
Vol 31 (2) ◽  
pp. 44-52
Author(s):  
Sirwa A. Qadir

Drought is one of the most critical abiotic factors especially in warm dry areas yielding limited crop. Ten wheat genotypes tested for drought tolerance at germination stage. Polyethylene Glycol-8000 used to induce -1.7 and -3.5 bars osmotic potential as compared to control treatment with three replications in factorial experiment with completely Randomized Design(CRD).The studied parameters showed a decreasing in style of response to increment of PEG concentration.The lowest  Final  Germination  Percentage  (FGP)  mean  recorded was 73.23 % under -3.5 bars as compared to control. Means of Daily Germination time (MDG), Germination Index (GI) and Coefficient of Velocity Germination (CVG) have been decreased from 4.04, 3.23 and 81.64 at control treatment to 2.46, 1.77 and 69.21 at severe drought level. But the highest CVG; 83.34 recorded by Azady under 160 g/ L PEG. In addition under -3.5 bar treatment lowest means of shoot and root length recorded; 3.34 and 1.92 cm as compared to control treatment. While, lowest shoot weight and whole seedling weight; 0.07 and 0.079 g recorded by Abu-ghreb, but lowest root dry weight 0.008 g was recorded by Adena. While, a significant increase observed in proline content in all genotypes at 160 g PEG-8000/ L medium. Ezz, Sham-6, Azady, Rabeaa and Riagary seedlings’ accumulated more proline as compared to Tammuz-2, Adena, Abu-ghreb, Abehade and Ebba-99. According to the studied parameters a dendrogram constructed. The genotypes classified into two groups. Resistant; include Ezz, Sham-6, Azady, Rabeaa and Rizgary. Sensitive; includes Tammuz-2, Adena, Abu- ghreb, Abehade and Ebba-99.


2014 ◽  
Vol 1 (1) ◽  
pp. 25-29
Author(s):  
Rahim Mohammadian ◽  
Behnam Tahmasebpour ◽  
Peyvand Samimifar

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.


2018 ◽  
Vol 7 (1) ◽  
pp. 28
Author(s):  
Yetti Elidar

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. 


2021 ◽  
Vol 19 (1) ◽  
pp. 155-163
Author(s):  
S Sapkota ◽  
D Kc ◽  
H Giri ◽  
M Saud ◽  
M Basnet ◽  
...  

The present research was conducted on two factor Completely Randomized Design (CRD) with eight treatments and three replications. A set of experiments were carried out to evaluate the effect of postharvest ethephon treatment and packaging on ripening of mango cv. Maldah. The treatments consisted of ripening agent i.e., ethephon and control treatment under different packaging condition i.e., fiber with hole, fiber without hole, plastic with hole and plastic without hole. The result revealed that different packaging condition and ripening agents influenced the ripening behavior of mango. The highest TSS (15.26), sugar-acid ratio (23.66) and juice content (126.05) were recorded with fiber (without hole) and the lowest TSS (12.60), sugar-acid ratio (9.01) and juice content (116.05) with plastic (without hole). The highest TA (1.44) was recorded with plastic (without hole) and the lowest (0.66) with fiber (without hole). Similarly, the highest BT (2.83) was recorded with fiber (with hole) and the lowest (1.66) with plastic (without hole). Firmness, sweetness, TSS and juice content were the highest with the interaction effect of fiber bag (without hole) and ethephon treatment. In conclusion, mango fruits with ethephon treatment packed in fiber bag (without hole) enhances quality and ripening of mango whereas under controlled condition and without hole plastic packaging mangoes had low quality performance in terms of physio-chemical properties. SAARC J. Agric., 19(1): 155-163 (2021)


Author(s):  
Andressa C. Neves ◽  
Camila N. Bergamini ◽  
Rafaela de O. Leonardo ◽  
Manoel P. Gonçalves ◽  
Dilcemara C. Zenatti ◽  
...  

ABSTRACT This study aimed to evaluate the effect of applying increasing doses of biofertilizer obtained by the anaerobic digestion of cassava effluent on the development of crambe plants. The experiment was conducted in a protected environment at the Federal University of Paraná (UFPR), Palotina Sector, between April and August 2015. A completely randomized design was used, and five different treatments with the following doses were applied in five replicates: 0, 40, 80, 120, and 160 kg ha-1 of K2O. The following parameters related to plant development were evaluated: final height, stem diameter, number of branches, dry shoot and root biomass, mass of the grains, and oil content. The 160 kg K2O ha-1 dose was found to have the best influence on the plant development, because all the measured parameters reached their highest values at this dose, except for oil content, which attained the highest percentage in the case of the control treatment (0 kg ha-1 of K2O). This study proved that the biofertilizer obtained by anaerobic digestion of cassava effluent can be used as an alternative to regular fertilizers in cultivating crambe.


2021 ◽  
Vol 5 (2) ◽  
pp. 180
Author(s):  
Edy Kustiani ◽  
Mariyono Mariyono ◽  
Bela Citra Ayuningtyas

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.


2020 ◽  
Vol 44 ◽  
Author(s):  
Neliane Galvão Porto ◽  
Felipe Barbosa Ribeiro ◽  
Jefferson Costa de Siqueira ◽  
Marcos Antonio Delmondes Bomfim ◽  
Rafael Silva Marchão ◽  
...  

ABSTRACT Methionine is an essential amino acid, and generally, the first limiting one in the diets of tambaqui, the main native fish produced in continental aquaculture in South America. However, there is a lack of information on their amino acid requirement, especially for maintenance and efficiency of utilization. The present study aimed to determine the requirement of [methionine plus cystine] for the maintenance and efficiency of utilization using tambaqui of different body weights. Two experiments were carried out using 250 tambaqui with weights of 100 and 300 g. They were distributed in a completely randomized design with four treatment groups (0.264, 0.396, 0.528, and 0.660% of digestible [Met + Cys]), five replications. The control treatment (CT) was performed with the addition of methionine at the first level (0.264%) until the second level was reached (0.396%). The maintenance requirement was determined by the regression analysis between the consumption of [Met + Cys] and protein retention equal to zero. The efficiency was determined using the value of the slope coefficient of the line obtained by the linear regression. The protein and methionine retention values of tambaqui weighing 100 to 300 g were compared by the parallelism test, and no difference was observed between the parameters of the equations indicating the need for only one equation to describe the responses to body weights. The requirement of digestible [Met + Cys] for the maintenance of tambaqui with weights from 100 to 300 g was 60.47 mg kg-0.7 day-1 and the efficiency of utilization of 42%.


2016 ◽  
Vol 65 (1) ◽  
pp. 9
Author(s):  
Ela Alcántara-Flores ◽  
Alicia Enriqueta Brechú-Franco ◽  
Angel Villegas-Monter ◽  
Guillermo Laguna-Hernández ◽  
Armando Gómez-Campos

Phyllonoma laticuspis leaves are used in Carrizal de Bravo, Guerrero, Mexico, to heal skin lesions such as injuries and smallpox sequelae and to treat diabetes mellitus type 2, and organic extracts of these leaves have been reported to exert antibacterial effects. High demand of P. laticuspis as a medicinal plant has decreased its natural populations, and propagation of the species has not yet been reported. Therefore, the purpose of this study was to assess the vegetative propagation of the species through cutting and air layering, as well as its sexual propagation in a preserved population. For this, concentrations of 1 000, 4 000 and 6 000 ppm of a commercial root enhancer, with indole butyric acid (IBA), and a control treatment without IBA, were applied to the cuttings and air layers. Germination was evaluated under light and dark conditions using lots of freshly collected seeds and lots of seeds that had been stored for three months at 4 °C or 24 ± 2 °C. All experiments were performed in a completely randomized design. The cuttings did not develop roots in any concentration, whereas 100 % of the air layers rooted, displaying vigorous roots in the presence of 4 000 ppm IBA, after four month of treatment application. Regarding germination, more than 60 % of the freshly collected seeds germinated, whereas less than 20 % of the seeds stored at 4 °C, and close to 50 % of the seeds stored at 24 ± 2 °C germinated under light and dark conditions. No significant differences were observed between light and dark conditions, so they were categorized as indifferent photoblastic seeds. The observed moisture content of 13.5 % and germination behaviour as the response to cold storage, suggest that the resultant seed quality was intermediate. P. laticuspis propagation for short-term foliage production can be carried out in air layers, in populations with a high density of adult plants as a source of plant material and for the restoration of disturbed areas, in the same locality. On the other hand, large-scale seedling production, medium-term foliage production and preservation of species variability can be achieved using seeds.


Author(s):  
Rahmad Afdillah ◽  
Yuli Andriani ◽  
Zahidah Hasan ◽  
. Rosidah ◽  
. Iskandar

This research aims was to determine the effective pressure on fine bubbles technology on the growth of Siamese catfish fry in the aquaponic system. This study uses a completely randomized design with four treatments and three replications. Treatment A (Control), Treatment B (FBs at a pressure of 4,5 atm), Treatment C (FBs at a pressure of 5 atm and treatment D (FBs at a pressure of 5,5 atm). The parameters observed were Specific Growth Rate, Survival Rate and water quality (Temperature, pH, DO, Ammonia) Data were analyzed using variance with the F test at a 95% confidence level. The best treatment for catfish growth was treatment D (5,5 atm pressure), which gave the highest SGR value of 7,24% and the highest SR value of 100%. The value of water quality parameters were in good condition for the growth and survival of catfish.


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