scholarly journals HYDRATION LEVELS ON CONIDIAL PRODUCTION OF Metarhizium rileyi (Ascomycota) IN SOLID GROWING MEDIUM

2019 ◽  
Vol 6 (3) ◽  
pp. 48-52
Author(s):  
Elisângela De Souza Loureiro ◽  
Luis Gustavo Amorim Pessoa ◽  
Pamella Mingotti Dias ◽  
Muller De Paula Ribeiro ◽  
Ricardo Alexandre De Souza Tosta ◽  
...  

This study aimed to evaluate the conidial production of Metarhizium rileyi in rice with different water volumes. The bioassay was composed by completely randomized design (CRD), with four treatments (20, 30, 40 and 50 mL of distilled water), being added 100 g of rice thin and long, making a total of 10 plastic bags per treatment, which were autoclaved for 15 minutes at 1.0 atm pressure, to 120 ºC. After the cooling of the rice, were added in each plastic bag, 2.0 mL of suspension containing 1 × 108 conidia mL-1. Then the bags were incubated for ten days in a germination chamber (BOD type) at 25 °C (±1 °C), 80% (±10%) relative humidity and 12h photoperiod to promote conidial germination and growth of the fungus, being performed a mild agitation every two days. The use of higher water volume resulted in greater conidial production and greater number of viable conidia. However, the highest rate of conidia germination was obtained with the use of 30 mL of water, is this the volume of water that corresponds to the best results.

2021 ◽  
Vol 5 (1) ◽  
pp. 7-11
Author(s):  
Tati Barus ◽  
Adrina Weisa ◽  
Renna Eliana Warjoto

Several technologies are evolving with the increasing agricultural product demand. The use of hydroponic systems appears more common, where the growing medium serves as a significant factor in determining plant growth, without available information on the use of sponges. This study is aimed at obtaining information on the potential of sponges as a hydroponic media in water spinach (<em>Ipomoea aquatica</em>), pak choi (<em>Brassica rapa</em>) and kale (<em>Brassica oleracea</em>). The method used was a completely randomized design with three replications and the treatment comprised of three growing media types, termed sponges, local and imported rockwool. The result showed an improvement in the growth of water spinach and pak choi in sponges, compared to local and imported rockwool. Furthermore, kale was known to develop more extensively on the entire media but varied insignificantly in kale.


Author(s):  
Carlos E. Affonso ◽  
Givanildo Z. da Silva ◽  
Tatiane S. Jeromini ◽  
Cibele C. Martins

ABSTRACT The rules for seed analysis do not have recommendations for conducting the germination test of Eucalyptus phaeotricha seeds. Thus, the aim of this study was to determine the best substrate, temperature, conduction time, and substrate moistening level for the germination test of E. phaeotricha seeds. First count of germination, germination, germination speed index and mean time of germination were evaluated. The first experiment was carried out in a completely randomized design, in a factorial scheme (6 x 2), corresponding to six temperature regimes (15, 20, 25, 30, 35 °C and 20-30 °C) and two substrates (paper and sand) with four replicates, and the means were compared by Tukey test at 0.05 probability level. In the second experiment, the germination test was installed with the most favorable substrate and temperature identified in the previous step, evaluating substrate moistening levels equivalent to 1.0, 1.5, 2.0, 2.5 and 3.0 times the dry weight of the substrate; due to the quantitative nature of the treatments, the data were subjected to regression analysis and curve fitting. The germination test of E. phaeotricha seeds should be conducted at 30 °C on paper, moistened with a water volume of 2.2 times the dry weight of the paper, with initial and final counts at 6 and 14 days after sowing, respectively.


Author(s):  
Catur Suci Purwati ◽  
Ludfia Windyasmara

The fermentation process is an activity of microorganisms that make products with characteristics of texture, flavor, aroma and changes in nutrient quality that better than the original raw material. It is also protein process of developing of protein from the material. This study uses a Completely Randomized Design with four treatments. P0 = Unfermented winged seeds, P1 = Winged seeds + 0,1% Trichoderma viride mushroom (Tv), P2 = Winged seeds + 0,2% Trichoderma viride mushroom (Tv), P3 = Winged seeds + 0,3% Trichoderma viride mushroom (Tv). The material used was crushed winged seeds as substrates that mixed to be homogenized. One hundred gr of each sample from every treatment was weighed, put into a perforated plastic bag (to create anaerobic atmosphere) with 2 cm thick. Subsequently, samples were incubated in fermented room at 30oC for 7 days. Each treatment was repeated 3 times. Variables observed in color, texture and coarse fiber. This study indicated that the winged fermented beans with Trichoderma viride mushroom had no effect on color, effected crude fiber and texture.


2019 ◽  
Vol 14 (1) ◽  
pp. 1-9
Author(s):  
Hery Kurniawan

Kelor is a plant species that has many benefits because of its nutritional content. The World Health Organization (WHO) has declared Moringa as a miracle plant, because it has saved many lives, especially children in many poor countries. Kelor has the opportunity to be developed in Sumatra, especially Riau as an alternative food crop, source of some important nutrients such as vitamins, proteins and anti-oxidants. Kelor from East Nusa Tenggara (NTT) is known to have the best quality in Indonesia. Its development in Riau requires preliminary research related to the growth of seedlings in several growing medium that have characteristics similar to those in Riau. This study uses a completely randomized design with treatment of growing medium in the form of three treatments, namely black soil, podsolic soil and peat soil mixture. The analysis was carried out descriptively and inference to the parameters of the percentage of life and height of Moringa seedlings. The results showed that seedling growing medium from top soil + fuel husk were best for Moringa seedling growth. Seedling growing media from top soil  sub soil or from top soil alone can be the best alternative afterwards.


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Muhammad Irpan ◽  
Hairu Suparto ◽  
Akhmad Rizali

Hiyung's chili is a local chili from Hiyung Village, Tapin, South Kalimantan. Hiyung's chili cultivation begins with a process nursery, nursery is one of the most important plant cultivation processes, which will determine the amount of Hiyung's chili production. This research aims to know the best composition of growing medium mixture, the best dosage compound of NPK fertilizer and the best interactions between the composition of growing medium mixture and the dosage compound of NPK fertilizer for Hiyung's chili nurseries. This research was conducted in Greenhouse the Faculty of Agroecotechnology, Lambung Mangkurat University from July - August 2020. This research use completely randomized design two factor, there are 12 treatments combination and 4 replications, totaling 48 experimental unit. Each experimental unit consists 4 polybags for a total of 192 polybags. The results showed the best composition of growing medium mixture for height of Hiyung's chili, is in the m3 treatment (150 grams of cow manure: 50 grams rice husk). The dosage compound of NPK fertilizer is in the p1 treatment (0.6 gram / plant). The best interactions between the composition of growing medium mixture and the dosage compound of NPK fertilizer for growth of leaf number plant Hiyung's chili is 150 grams of cow manure: 50 grams rice husks and 0.6 gram / plant.


2020 ◽  
Vol 7 (1) ◽  
pp. 62-66
Author(s):  
Masniar Vina Kesti ◽  
Bambang Irawan ◽  
Priyambodo Priyambodo ◽  
Martha Lulus Lande

Green mustard is one type of vegetable that is easily cultivated and has good prospects to increase farmers' income and community nutrition. Growing media is a material that is useful as a place to stand upright seedlings, to develop seedling roots, to store water, gas, and nutrients needed for seedling growth. The purpose of this study is a). to determine the effect of using a combination of cocopeat and charcoal as a medium for planting mustard greens, b). to get the best dosage of the composition of the growing medium on the growth of mustard greens. The study was conducted in a completely randomized design (CRD) with 4 treatments and 6 replications. The data were analyzed by analysis of variance (ANOVA) and further tested with the Least Significant Difference test (LSD) = 5%. The results showed that the use of cocopeat growing media and charcoal influenced germination and vigor index. Cocopeat and charcoal have a significant effect on fresh and dry weight and chlorophyll content of mustard greens. The mixture of cocopeat growing media and charcoal on P1 did not affect the growth of green mustard on the dry weight. Fresh weight gave a significant effect on K1 and P1 was also significantly different from P2 and P3.


2020 ◽  
Vol 9 (2) ◽  
pp. 86
Author(s):  
Oktaviana Elsa Dewi ◽  
Sapto Andriyono ◽  
Mochammad Amin Alamsjah

Aquaponics is a technology that combines the cultivation of vegetable production and fish farming. The aquaponics technology also to fertilization to give nutrients to the plant to support of survival. In facts, fertilization done to plants is located on land. Fertilizing the plants that live in the waters are still very rare, because the waters as a growing medium that is considered to always provide sufficient nutrients for plant growth. In this research, using biofertilizer Euchema cottonii of seaweed. The advantages of biofertilizer seaweed is to have the content of macro and micro nutrients are complete. It also contains substances hyper Grow (PGR) plant (auxin, cytokinin, gibberellin, abisat acid and ethylene).In this research to determine the effect of biofertilizer products of seaweed (E. cottonii) commercial on the growth of dumbo catfish (C. gariepinus) and pakcoy mustard (B. rapa L) on aquaponics system. The design of experiments in this research using a completely randomized design (CRD) with 5 treatments and 4 replications. The treatment used is fertilizer "AB mix®" 1% (A), without fertilizer (B) and the provision of products biofertilizer seaweed (E. cottonii) commercial 0,16% (C), 0,18% (D) and 0,20% (E). The main parameters measured were heavy growth of biomass, plant height pakcoy mustard (B. rapa L), growth SGR, length and survival rate of fish of dumbo catfish (C. gariepinus).The results showed that the dose of different commercial product biofertilizer seaweed (E. cottonii) gives a significantly different effect on the height growth of pakcoy mustard (B. rapa L) and the survival rate of dumbo catfish (C. gariepinus). The optimal dosage of commercial seaweed (E. cottonii) biofertilizer product in increasing the growth of pakcoy mustard (B. rapa L.) and African catfish (C. gariepinus) in the aquaponic system, namely treatment E at a dose of 0.20%.


2021 ◽  
Vol 5 (1) ◽  
pp. 1-6
Author(s):  
Ahmad Yunus ◽  
Arifiya Qifni ◽  
Puji Harsono ◽  
Bambang Pujiasmanto

Johar (<em>Cassia seamea</em>) is a medicinal plant with a cassiarin A compound to combat malaria and has a low Cassiarin A is an active compound in Johar (<em>Cassia seamea</em>) medicinal plant capable of combating malaria, despite showing a low seed production rate due to dormancy. This inactivity is severed using gibberellic acid (GA<sub>3</sub>) treatments. This study aims to determine the effects of concentration and soaking period of GA<sub>3</sub> on seed germination and growth of Johar seedlings. A completely randomized design (CRD), consisting of 2 treatments was applied as the research method. The first treatment employed GA<sub>3</sub> concentrations of 0, 45, 90 and 135 ppm, while the second was based on the soaking interval at 6, 12, 18 and 24 hours. The results showed the capacity of GA<sub>3</sub> able to shatter the seed dormancy with percentage germination of 43.03% and a concentration of 50.28 ppm. Therefore, the interaction of the two treatments significantly influenced the growth of Johar seedlings. Consequently, the concentration of GA<sub>3</sub> at 79.89 ppm increased the root length to 52.19 cm, while 84.68 ppm produced a total of 20.91 roots, after a 6 hour soaking. In addition, the 96.67 ppm expanded the stem diameter by 0.93 cm.


2021 ◽  
pp. 36-46
Author(s):  
Most Tania Akter ◽  
Mohammad Mahbub Islam ◽  
Parvin Akter Bithy ◽  
Suraya Parvin ◽  
Md. Ehtasham Bari

This experiment was carried out at the rooftop garden of the Department of Agricultural Botany, Sher-e-Bangla Agricultural University (SAU), Dhaka-1207, Bangladesh from October 2017 to March 2018 to evaluate the response of tomato to different plant growing structures and composition of growing media in the rooftop garden. The experiment had two factors, factor A- two plant growing structures, viz., S1 = Plastic pot, S2 = Earthen pot and factor B - six different plant growing medium viz. M0 = Soil 100% (w/w) + inorganic fertilizer (IF)/(control), M1 = Soil 80% (w/w) + 20% cowdung (w/w) + IF, M2 = Soil 70% (w/w) + 30% cowdung (w/w) + IF, M3 = Soil 90% (w/w) + 10% vermicompost (w/w) + IF, M4 = Soil 80% (w/w) + 20% vermicompost (w/w) + IF, M5 = Soil 80% (w/w) + 10% cowdung (w/w) + 10% vermicompost (w/w) + IF. The factorial experiment was laid out in a Completely Randomized Design (CRD) with four replications. The experimental results yield contributing characters and yield of tomato significantly influenced by different plant growing structures and various composition of plant growing media and also their combination. Considering plant growing structures, the S1 gave the highest flower clusters per plant, flowers per plant, fruit length and fruit breadth.  The maximum yield of fruits per plant (1.69 kg) was also obtained from plastic pot. The M5 had the highest flower clusters per plant, flowers per plant, fruit length and fruit diameter. The maximum yield of fruits per plant (2.17 kg) was recorded from the M5. The highest yield of fruits per plant (2.15 kg) was obtained from the treatment combination of S1M5. This experimental results suggest that S1M5 be able to increase the fruit yield of BARI tomato14 for rabi season in the rooftop garden.


2018 ◽  
Vol 5 (3) ◽  
Author(s):  
A F A Putra ◽  
N D Hanafi ◽  
Hamdan ◽  
M Tafsin ◽  
R E Mirwandhono

This study aims to determine effects of production of Brachiaria decumbens grass on different drought stress treatments. Research was conducted at the Greenhouse Faculty of Agriculture University of North Sumatera from Desember 2016 until April 2017. The design used was Completely Randomized Design (CRD), with three treatments and seven replications. The treatment consisted of three levels of drought stress which were control (100% field capacity=fc), medium drought stress (25% fc), and heavy drought stress (50% fc). The variable were fresh weight production, dry weight production and plant height. The results showed that drought stress treatment control (100% fc) significantly (P<0,05) affect fresh weight production, dry weight production, but not plant height. It is concluded that increasing water volume of field capacity increase production Brachiaria decumbens grass.


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