scholarly journals Effectivity of Using Growth Retardants on Shorea assamica Dyer Seedling at Nursery

Jurnal Wasian ◽  
2015 ◽  
Vol 2 (1) ◽  
pp. 41
Author(s):  
Arif Irawan ◽  
Iwanuddin Iwanuddin

The use of growth retardants widely used as a solution in the storage material for the propagation of plant species that have recalcitrant seed types. White meranti (S.assamica) is one kind of commercial timber from dipterocarp family found in Sulawesi. This species is one of the types of plants that have the type of recalcitrant seeds. This study aims to determine the effectiveness of using growth retardants in the nursery.The experimental design used in this research is completely randomized design. The results showed the use of growth retardants provide excellent effectiveness in inhibiting the growth of seedling of S.assamica. Paklobutrazol of 250 ppm is a the best treatment that can provide growth inhibition. Percentage of growth inhibition of seedling age of 6 months amounted to 75,14 % (height) and 33,33% (diameter).

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
Erwin A. Aziz ◽  
Ockstan Kalesaran

This study aimed to determine the effect of ovaprim hormone, aromatase inhibitor and pituitary on the quality of the catfish eggs (Clarias gariepinus). Experimental Design used was Completely Randomized Design (CRD) with four treatments, each with three replications. Treatment A: ovaprim; treatment B: Aromatase inhibitors, treatment C: hypophysis and treatment D: Control. The results showed that the difference in treatment gave highly significant effect on fertilization and hatching eggs but no significant effect on the survival rate of larvae. Aromatase inhibitor hormone was the best because it provided highly significant effect on fertilization (92.66%), hatchability of eggs (95%), and surviva rate (81.33%) of fish larvae.   Keywords : Clarias gariepinus. Ovaprim, Aromatase Inhibitor, Hypophysis, egg, larvae


2018 ◽  
Vol 36 (0) ◽  
Author(s):  
C. ALVES ◽  
L. GALON ◽  
R.R. KAIZER ◽  
F.L. WINTER ◽  
C.M. HOLZ ◽  
...  

ABSTRACT: The use of plant species for the phytoremediation of soils contaminated with herbicides is an alternative that has been emphasized to minimize the effects of the persistence of agrochemicals in the environment. The objective of this study was to evaluate the tolerance potential of winter species in soils contaminated with sulfentrazone and fomesafen. The experiment was in a completely randomized design with four replications. Doses of fomesafen (0.0, 0.125, 0.250, and 0.5 kg ha-1) and sulfentrazone (0.0, 0.3, 0.6 and 1.2 kg ha-1) were applied during the pre-emergence of phytoremediate species (black oat, vetch, birdsfood trefoil, radish and lupin). Forty five days after the emergence of the species, the phytotoxicity (%), leaf area (cm2), stalk and/or stem diameter (mm), height (cm) and dry matter (g) variables of the plants were evaluated. Data were submitted to analysis of variance by F test; when significant, linear or non linear regressions were applied to evaluate the effect of herbicide doses on the studied species. Birdsfood trefoil was the less tolerant species to fomesafen and sulfentrazone. Black oat was less affected by the application of fomesafen doses, but it was highly susceptible to sulfentrazone. Radish presented tolerance only up to the fomesafen dose of 0.25 kg ha-1; as for sulfentrazone, the species showed tolerance. The most tolerant species to fomesafen and sulfentrazone, regardless of the dose, was the lupine, which is a possible alternative for the phytoremediation of soils contaminated with these herbicides.


2017 ◽  
Vol 1 (3) ◽  
pp. 262
Author(s):  
Edom Bayau

   Makila (Litsea angulata) is a type of commercial timber and is very attractive to many people because of good quality and can also be used as a medicine in curing rheumatic diseases should be assigned the paramount concern. cultivation / reproduce makila can be done in a fast way is through the nursery in the field. in nurseries should also pay attention to things that affect makila, one of which is related to the intensity of sunlight makila seedling growth. The research conducted at the location of the greenhouse Faculty of Agriculture, University of Pattimura which take place september until november 2014 with the aim to determine the seedling growth makila (Litsea angulata) to determine what percentage of shade is good for seedling growth makila (Litsea angulata). The experimental design used was completely randomized design (CRD) with 5 (five) treatments, the seedlings without using Shade, Shade 30 percent, 50 percent Shade, Shade 65 percent, and Shade 75 percent. The results showed that the seedling Makila (Litsea angulata) is a kind of tolerance with all shade or kind makila able to grow in places that are open and shaded place.


2021 ◽  
Vol 9 (2) ◽  
pp. 269
Author(s):  
Rizka Diah Permana ◽  
Hasan Ashari Oramahi ◽  
Farah Diba

The efficacy of liquid smoke obtained from medang wood (Cinnamomum sp.)against Schizophyllum commune fungus was evaluated. This study aims to evaluate the antifungal properties of liquid smoke from medang against S. commune fungus. Potato Dextrose Agar (PDA) medium was used to determine the efficacy of the liquid smoke of medang wood on S. commune fungus growth. Three kinds of liquid smoke were obtained from the pyrolysis of medang wood at 370, 400, and 430°C. The efficacy of liquid smoke from medang wood for antifungal is a factorial 3 by 4 in a completely randomized design; the first factor was pyrolysis temperature of liquid smoke from medang (370, 400, and 430°C), and the second factor was the treatment of concentration of liquid smoke from medang wood (0, 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0%, v/v). The results showed that pyrolysis temperature affected liquid smoke from medang, and the concentration of liquid smoke was significantly different for inhibition of fungal growth. The results indicated that the pyrolysis temperature of liquid smoke production and the concentration of liquid smoke had a significant effect on S. commune fungus growth inhibition. Medang wood liquid smoke effectively inhibited the growth of S. commune fungus about 98.57% at a concentration of 2.5% with liquid smoke pyrolysis temperature used is 430°C.Keywords: efficacy, inhibition of fungal growth, liquid smoke, medang wood, Schizophyllum commune


2021 ◽  
Vol 2 (2) ◽  
pp. 185
Author(s):  
Eva Fitriyaningsih

Background: Using young breadfruit to increase the breadfruit usability and economic value, one of the efforts is through the enrichment of the type of processed breadfruit products, breadfruit provides nutritional value that is beneficial to health, one of the help of breadfruit is increasing breadfruit for shredded products.Objectives: This study aims to find out how to improve young breadfruit 20%, 30%, 40% of the chemical properties (carbohydrate, protein, and fiber) of shredded tuna.Methods: This study used an experimental design with a non-factorial Completely Randomized Design (CRD) with three preparations and three repetitions. Then the chemical tests (carbohydrate, protein, and fiber) at the Laboratory of Animal Nutrition and Feed Technology of the Faculty of Agriculture, Syiah Kuala University, Banda Aceh.Results: The study results showed actual participation in young breadfruit 20%, 30%, and 40% of the chemical properties (carbohydrate, protein, and fiber) in shredded tuna with a p-value < 0.05.Conclusion: Agreeing that 20%, 30%, and 40% of young breadfruit were approved for shredded tuna's chemical properties (carbohydrate, protein, and fiber).


2020 ◽  
Vol 9 (4) ◽  
pp. 482
Author(s):  
Ni Komang Trisna Rahayu ◽  
I Dewa Gede Mayun Permana ◽  
GA. Kadek Diah Puspawati

This research aimed to determine the effect of maceration time on the antioxidant activity of pegagan leaf extract and to determine the best maceration time with highest antioxidant activity of pegagan leaf extract. The experimental design used was Completely Randomized Design with maceration time duration there were 18, 24, 30, 36, 42, and 48 hours. All of the treatment repeated three times to obtained 18 units of experiments. The data analyzed by analyze of variance, if the treatment had a significant effect followed by The Duncan Test. The results showed that the maceration time treatment had a significant effect on yield, total phenolik, total flavonoid, total tannin and antioxidant activity of pegagan leaf extract. The 24 hour maceration time was the best treatment with antioxidant activity 66.67%, IC50 632.82 ppm, a yield of 24.30%, a total phenolik of 57.85 mgGAE / g, a total flavonoid of 105.28 mgQE / g. total tannin 54.09 mgTAE / g.


2021 ◽  
Vol 9 (2) ◽  
pp. 73-82
Author(s):  
Anisa Leksono ◽  
◽  
Erni Sofia Murtini ◽  

Aquilaria is one of the plant genus-producing agarwood. Aquilaria leaves have pharmacological effects which the potential to be processed into black tea. The aim of this study is to determine the effect of fermentation duration on physicochemical and organoleptic characteristics of Aquilaria leaves tea. This study employed a Completely Randomized Design with two factors; the plant species (A. crassna, A. malaccensis, and A. subintegra) and fermentation duration (0 minutes, 70 minutes, and 90 minutes). Parameters analyzed including water content, total phenol, and antioxidant activity. Organoleptic tests were performed on the color, taste, and aroma of the brewed tea. The results summarized that A. subintegra had the highest total phenol and antioxidant activity, but the taste of the tea was not favored. A. crassna fermented 70 minutes and A. malaccensis fermented 0 minutes were the most preferred, but both have lower total phenol and antioxidant activity than A. subintegra.


2020 ◽  
Vol 55 (2) ◽  
pp. 10-25
Author(s):  
M. O. Iwuagwu ◽  
D. A. Okpara ◽  
C. O. Muoneke

Field experiment was conducted at National Horticultural Research Institute (NIHORT), Mbato Sub-station, Okigwe, Imo State, South-eastern Nigeria in the 2012 and 2013 cropping seasons to establish the most appropriate time to introduce component crops in cocoyam/cowpea mixture. Five different planting schemes (two and four weeks before, two and four weeks after and same day) and two cowpea genotypes (climbing Akidienu and erect IT97K-499-35) were used. The component crops were grown in monocultures to assess the productivity of the systems. The experimental design used was a completely randomized design with three replicates. Growth and yield of cocoyam and the cowpea genotypes increased significantly (P<0.05) when either of the component crops was planted earlier than the other. Intercropping reduced significantly (P<0.05) cocoyam yield by 0.7 − 74% in IT97K-499-35 and 22 − 80% in Akidienu. Sowing the cowpea genotypes the same day or before cocoyam resulted in over-yielding of cowpea, whereas sowing Akidienu and IT97K-499-35 after cocoyam caused pod yield reductions of 64% − 73% and 32% − 59% on average, respectively. Cocoyam planted two weeks before IT97K-499-35 produced more satisfactory yields of the intercrops than the other planting schedules with LER, LEC and ATER of 2.15, 1.03 and 1.57, respectively.


Author(s):  
Putu Eka Yudhayanti ◽  
I Dewa Gde Mayun Permana ◽  
Komang Ayu Nocianitri

Black garlic is a garlic that experiences warming at a certain temperature and time to find higher antioxidant activity. This research aimed to know effect of antioxidant content’s stability of extract BG to pH and temperature. The experimental design used in this research was a completely randomized design with replication, which consisted of two factors. The first factor was pH (4, 6 and 8). The second factor was temperature (30, 50 and 70ºC). Data were analyzed with analysis of variance, followed by Duncan test. The results showed that pH and processing temperature very influential to antioxidant activity, total phenolic and total flavonoid. The results showed that the best treatment was pH 4 and temperature 30ºC which the best resulted antioxidant activity, total phenolic and total flavonoid that stablest. The resulted of antioxidant activity, stability of total phenolic and total flavonoid that were 75,13%, 42,47% and 77,71%. The treatment of pH and processing temperature change compounds of extract black garlic. Myricetin and quercetin appeared on treatment pH 4 with temperature 30ºC and pH 8 with temperature 70 ºC. The treatment of pH and processing temperature of black garlic extract reduced antioxidant activity, total phenol and total flavonoid. pH and temperature form new compounds.


2018 ◽  
Vol 47 ◽  
pp. 02004
Author(s):  
Tri Heru Prihadi ◽  
Rasidi ◽  
Idil Ardi ◽  
Ani Widiyati ◽  
Dwi Budi Wiyanto

Nusa Penida island is one of center for seaweed culture in Bali province. Seaweed that cultured is Euchema spinosum and Euchema cottoni spread around coastal. There also found wild seaweed, such as Ulva sp and Gracillaria sp. Abalone (H. squamata) is one of kind Mollusca which high economic value, but abalone cultured is not yet develop in Nusa Penida island, although this island have high potency for developing abalone culture. Abalone culture needs seaweeds as a diet. The abundance of seaweeds as abalon diet is important for developing abalon culture in Nusa Penida Island in the future. The aim of this research was to asses the potency of seaweeds as diet for developing abalone culture in Nusa Penida island. Research was done in Batununggul village, Nusa Penida Island. Experimental design was used Completely Randomized Design (CRD) with 3 treatments and 3 replications. The treatments were used different seaweeds as diet for abalone culture: (DG=Diet Gracillaria sp, DS=Diet Spinosum sp. and DU=Diet Ulva sp.). Abalon were cultured for 4 months by feeding the diet at satiation. Data analysis was used analysis varian (Anova) with SPSS. 16. The result showed abalon fed with Gracillaria sp (DG) at 4.73 g was the highest growth by 4.73 g, followed DU by 3.93 g and DS by 3.43 g. Meanwhile the abalon shell length fed with Gracillaria sp (DG) was the highest growth by 6.55 mm, followed DU by 5.97 mm and DS by 5.60 mm. Based on variant analysis showed growth performance (length shell and weight) abalon, all treatments were not significantly different (P>0.05). The conclusion this research, the three species of seaweed can be used as diet for abalone culture. These seaweeds have same potency as diet for developing abalone culture in Nusa Penida Island


Sign in / Sign up

Export Citation Format

Share Document