scholarly journals EFFECT OF SALINITY ON IMBIBITION AND GERMINATION RATES OF LUPINE SEEDS.

HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 263D-263
Author(s):  
Rochele C. Strachan ◽  
E.G. Rhoden ◽  
G. W. Carver
Keyword(s):  
High Salinity ◽  
Sea Water ◽  
Seedling Survival ◽  
Lupinus Albus ◽  
Poor Quality ◽  
The Bahamas ◽  
Randomized Design ◽  
Original Weight ◽  
Completely Randomized Design ◽  
Design Experiments

Growing crops using poor quality Later can result in poor germination and seedling survival. Low germination rates of various crops in the Bahamas result from the high salinity of the irrigation water. This study investigated the effects of using varying levels of sea water on germination and imbibition rates of lupine (Lupinus albus) seeds. In separate completely randomized design experiments, 100 lupine seeds were placed in conical flasks and either de ionized distilled water (DDW). 100%, 75%, 50% or 25% sea water added to each flask. Seeds ware removed from each flask every hour for the first 8 hours and every six hours thereafter for 48 hours. lmbibition rate is expressed as mg/ghr using the formula: (original weight - weight at y hr) × 1000)/(original weight x y hrs). Germination of seeds was measured beginning 3 days after imbibition began and the experiments were terminated after 10 days. The highest rate of imbibition (178.8 mg/g/hr) was recorded for lupine seeds placed in 25% sea water and the lowest of 152.8 mg/g/hr for seeds placed in 100% sea water after two hours. Germination ranged between 49% (100% sea water) to 94.7% for seeds placed in DDW. It would appear that if lupine seeds were primed with 25% sea water (approximately 150 ppm, NaCI) there would be no significant reduction in either the imbibition or the germination rates.

scholarly journals Promoting Tuber Formation In Vitro with Benzyl Amino Purine and Paclobutrazol at Different Concentrations

Akta Agrosia ◽  
2019 ◽  
Vol 22 (1) ◽  
pp. 29-35
Author(s):  
Usman Kris Joko Suharjo ◽  
Hasanudin Hasanudin ◽  
Tunjung Pamekas ◽  
Hesti Pujiwati ◽  
Alyi Vanturini
Keyword(s):  
Poor Quality ◽  
Tuber Formation ◽  
Potato Tubers ◽  
Seed Sources ◽  
Randomized Design ◽  
Plant Culture ◽  
Wet Weight ◽  
Completely Randomized Design ◽  
Range Test

A common problem related to the production of potatoes in Indonesia is the use of poor quality seed sources and declining seeds. Plant tissue culture is one of the best methods used for the provision of quality seeds. This study aims to establish the best combination of BAP concentration and the concentration of paclobutrazol in spurring the growth of cuttings and initiation of potato tubers in vitro.This research was conducted in November 2017 until June 2018 at Agronomy Laboratory of Biotechnology Division and Plant Culture Network of Agriculture Faculty of Bengkulu University. The  research  design  used  was  Completely  Randomized  Design  (CRD)  which  consist  of  18 combination of BAP treatment and Paclobutrazol was repeated 6 times. The concentration of BAP used was 0 mg / l, 5 mg / l, 10 mg / l and the concentration of Paclobutrazol 0 mg / l; 2.5 mg / l; 5 mg / l; 7.5 mg / l; 10 mg / l; 12.5 mg / l. The data of the research were analyzed by F test of 5% level and if there were different between treatments followed by Duncan's Multiple Range Test (DMRT) test of5% level. The results showed that the combination of BAP and  Paclobutrazol concentration had significant effect on all observed variables. Treatment of 5 mg / l BAP and 7.5 mg / l Paclobutrazol is the best medium in inducing potato micro tube as indicated by the fastest tuber formation time, highest percentage of productive crops, largest number of tubers per bottle, number of tubers per productive plant, tuber diameter the largest and highest wet weight of tuber per bottle. Keywords : in vitro, BAP, paclobutrazol, Potato

scholarly journals Growth and viability of juvenile humpback grouper (Cromileptes altivelis) supplemented with inorganic and organic selenium

2013 ◽  
Vol 11 (2) ◽  
pp. 141
Author(s):  
Muhaimin Hamzah ◽  
Muhammad Agus Suprayudi ◽  
Nur Bambang Priyo Utomo ◽  
Wasmen Manalu
Keyword(s):  
Sodium Selenite ◽  
Sea Water ◽  
Average Length ◽  
Stocking Density ◽  
Protein Retention ◽  
Organic Selenium ◽  
Randomized Design ◽  
Inorganic Selenium ◽  
Completely Randomized Design ◽  
Fish Performance

<p>This study was conducted to determine the effects of inorganic selenium (sodium selenite) and organic selenium (selenomethionine) supplementation on growth and viability of juvenile humpback grouper (Cromileptes altivelis). The experiment was designed as a completely randomized design with eight treatments and three replications. The treatment being tested was source and dosages of selenium ie., inorganic selenium (sodium selenite) supplementation with dosages of 0.5, 1, 2, and 4 mg Se/kg diet and organic selenium (selenomethionine) with dosages of 1, 2, and 4 mg Se/kg diet. Another treatment was unsupplemented selenium. Juveniles humpback grouper at an initial average length of 6,39±0,41 cm and body weight of 4,49±0,65 g were reared in 90×40×35 cm3 aquaria and fed artificial diet (pellet) two times daily (08.00 and 16.00) at satiation. Fishes were reared for 40 days at a stocking density of 12 fish per aquarium on sea water with salinity of 30–31 ppt and temperature of 28–29 °C. The results of this study showed that the source of selenium supplementation (inorganic or organic) affected growth performance, glutathione peroxidase (GPx) enzyme activity, and blood profiles of the experimental fish. Generally, it was found that selenomethionine supplementation resulted in better fish performance than sodium selenite. In sodium selenite supplementation, survival declined with the increased dosages of Se in the diet, and the supplementation at dosage of 0,5 mg Se/kg diet showed a toxic effects. Histopatological test showed that there were damage in livers, kidneys, and intestines of fish supplemented with sodium selenite from 0.5 to 4 mg Se/kg diet. On the contrary, supplementation of selenomethionine up to 4 mg Se/kg did not show any signs of toxicity and the survival was on 86.11 to 97.22%. Feed efficiency, protein retention, lipid retention, and Se retention indicated that a dosage of 4 mg Se/kg selenomethionine supplementation was the best dosage.</p><p>Keywords: selenium, viability, growth, Cromileptes altivelis, humpback grouper</p>

scholarly journals Effects of Gypsum and Zeolite on Nutrient Uptake and Shallot (Allium ascalonium L.) Growth on Irrigated Saline Entisol

2019 ◽  
Vol 24 (2) ◽  
pp. 73
Author(s):  
Rahayu Rahayu ◽  
Jauhari Syamsiyah ◽  
Livia Dewi
Keyword(s):  
Nutrient Uptake ◽  
Soil Amendment ◽  
High Salinity ◽  
Saline Water ◽  
Limiting Factor ◽  
Fresh Weight ◽  
Randomized Design ◽  
Two Factors ◽  
Wet Weight ◽  
Completely Randomized Design

Entisols is soil that newly formed and has diverse fertility, and potential for shallot cultivation.. The center of shallot production is mostly carried out in coastal areas which have a limiting factor high soil salinity. High salinity will cause nutrient uptake and plant growth disrupted. Soil amendments such as zeolite and gypsum potential option to overcome tha impact of high salinity. This study was completely randomized design (CRD) two factors, shallot cultivar (Brebes cultivar = V1, Purbalingga cultivar = V2, Pemalang cultivar = V3), and soil amendment (gypsum = G, zeolite = Z, without amendments= K. Each pot countaned of 15 kg of entisols and irrigated by 1 liter saline water of 2 mS / cm every day. Results shallot that amendment application can significantly improve pH, EC, SAR. Application of gypsum (25 Mg ha-1) and zeolite (15 Mg ha-1) showed the higher effect on purbalingga cultivars (V2). Interaction amendments and cultivars did not significantly affect on plant height and diameter of the bulbs. Gypsum 25 Mg ha-1 (G) significantly increased wet weight and fresh weight of bulb in purbalingga cultivars.

Performance of Exotic Gladiolus Cultivars under Various Irrigation Regimes

2019 ◽  
pp. 113-118
Author(s):  
Aqsa Ahmad ◽  
Iftikhar Ahmad
Keyword(s):  
Irrigation Water ◽  
Poor Quality ◽  
Stem Length ◽  
Cut Flower ◽  
Irrigation Regimes ◽  
Randomized Design ◽  
Cold Store ◽  
Completely Randomized Design ◽  
Sowing Experiment ◽  
Set Up

Gladiolus (Gladiolus L. hybrids) is a bulbous cut flower, which produces charming spikes on elongated stems. A study was conducted to evaluate the performance of various exotic gladiolus cultivars, viz. ‘Bangladesh’, ‘Essential’, ‘Nova Zambla’ and ‘White Prosperity’ under various irrigation regimes during 2017-2018. Corms were imported from Stoop Flower Bulbs, Holland, transported to laboratory from cold store, and acclimatized at ambient temperature for a week before sowing. Experiment was set up in a polyhouse in plastic crates according to completely randomized design with three replications each having 18 corms planted in a crate. Five irrigation regimes, viz. 5, 10, 15, 20 and 25 days interval, were adopted for all the cultivars under study. Irrigation water was applied until saturation of the soil. Results depicted that gladiolus cultivars ‘Essential’ and ‘Nova Zambla’ produced early flowering with greater stem length, stem fresh and dry weights, leaf area, spike length and number of florets. Best quality flowers were obtained when plants were irrigated at 10 days interval, followed by 15 and 20 days interval, while poor quality stems were produced when plants were irrigated at 5 or 25 days interval, which was either over or under irrigation, respectively. In conclusion, gladiolus cultivars grown at 10 and 15 days irrigation intervals from December to March produced best quality stems and irrigation at 10-15 days interval can be considered as optimal for gladiolus production.

scholarly journals PENGARUH RADIASI PLASMA DAN PUPUK KANDANG KAMBING TERHADAP PERTUMBUHAN BAWANG MERAH VARIETAS BIMA BREBES

2019 ◽  
Vol 6 (2) ◽  
pp. 114-125
Author(s):  
Emi Anitasari ◽  
Erma Prihastanti ◽  
Fajar Arianto
Keyword(s):  
Local Environment ◽  
Plasma Discharge ◽  
Poor Quality ◽  
Plasma Radiation ◽  
Plant Seeds ◽  
Randomized Design ◽  
Two Factors ◽  
Completely Randomized Design ◽  
Goat Manure

Shallot variety of Bima Brebes is a shallot variety that is widely cultivated by farmers in Indonesia because it is easy to grow and adapt to the local environment. However, in reality many farmers use the previous harvest for the next planting seed so that the yields obtained will be of poor quality. This study aims to determine the effect of giving nitrogen through corona incandescent plasma discharge and goat fertilizer on the growth of shallots so that it can improve the quality of onion seedlings. This study used a Completely Randomized Design (CRD) with a factorial pattern using a corona incandescent plasma discharge factor and goat manure. The results showed an interaction between the two factors that can be seen from the plant height parameters which showed significant results in the treatment of plant seeds that were plasma radiation for 30 minutes and the planting media were given goat manure 65 g. Based on the results of the study it can be concluded that the administration of corona incandescent plasma discharge and goat manure on the cultivation of shallots varieties of Bima Brebes was able to accelerate the time of sprouting by 200.3% and increase the growth of onion plants.

scholarly journals KONSUMSI DAN EFISIENSI PAKAN PADA IKAN KERAPU BEBEK (Cromileptes altivelis) YANG DIPUASAKAN SECARA PERIODIK

2005 ◽  
Vol 10 (2) ◽  
pp. 129-132
Author(s):  
Edy Yuwono ◽  
Purnama Sukardi ◽  
Isdy Sulistyo
Keyword(s):  
Food Consumption ◽  
Food Deprivation ◽  
Feed Efficiency ◽  
Sea Water ◽  
Treatment Groups ◽  
Feeding Management ◽  
Experimental Fish ◽  
Randomized Design ◽  
Daily Food ◽  
Completely Randomized Design

The objective of the research was to find out the effect of repeating cycle of feed deprivation followed by fixed refeeding on the food consumption and feed efficiency of grouper Cromileptes altivelis. The experimental fish weight was 10.86 1.42 gram. The treatments included: (P1) group received repeating cycles of 1 day food deprivation followed by 2 days refeeding in 14 cycles, (P2) group received repeating cycle of 1 day food deprivation followed by 3 days refeeding in 10 cycles, (P3) group received repeating cycle of 1 day food deprivation followed by alternating 2 and 3 days refeeding in 12 cycles and, (K) group fed daily as control. Each treatment was assigned to 3 aquaria containing 150 l recirculated sea water according to completely randomized design. Twenty individuals were stocked in each aquaria. The fishes were fed with floating pellet twice a day at 09.00 and 15.00 to satiation for four weeks. Water quality was monitored. The results showed that repeating cycle of food deprivation followed by fixed refeeding affected food consumption and feed efficiency in grouper Cromileptes altivelis. Food consumption of fishes from treatment groups showed lower food consumption than control, but they showed higher daily food consumption and feed efficiency. This phenomenon could be applied in practical feeding management for application to mariculture.

scholarly journals Germination and survival of Aechmea gamosepala on different substrates

2019 ◽  
Vol 25 (3) ◽  
pp. 225-230 ◽  
Author(s):  
Adilson Anacleto ◽  
Luís Fernando Roveda ◽  
Rafaela Aparecida Santoro Ramos
Keyword(s):  
Agricultural Land ◽  
Seedling Survival ◽  
Ornamental Plants ◽  
Sprinkler Irrigation ◽  
Easy Access ◽  
Experimental Unit ◽  
Randomized Design ◽  
The Mean ◽  
Completely Randomized Design ◽  
Mean Time

Abstract The State of Parana is one of the Brazilian regions with the highest incidence of extraction of bromeliads, among the factors for the occurrence of this situation, they highlight a great demand for this species as ornamental flowers and the easy access to forests, few cultivation ponds and difficulties for farmers in cultivation processes, especially in the early stages of cultivation. The species Aechmea gamosepala Wittmack stands out among the species of this group of ornamental plants (Bromeliaceae) with strong commercial appeal and consequently of extraction. Given this context, a study was carried out to evaluate the germination and survival of seeds of the species. Five alternative types of substrates easily accessible to farmers were tested: coconut husk fiber, Plantmax®, earthworm humus, humidified Pinnus husk and sieved agricultural land. The experiment was conducted in a completely randomized design with 4 replications and 25 seeds per experimental unit at room temperature in a greenhouse, with sprinkler irrigation for a period of 90 days. The mean time for the onset of germination was 6.95 days, averaging 74.8% at the peak of germination, but there were no significant statistical differences between the treatments. For the seedling survival, humidified Pinnus husk substrates (70.8%) and coconut fiber house (80.4%) proved to be the best substrates for Aechmea gamosepala Wittmack.

scholarly journals Biofiltration Efficiency of Algae Spirogyra hyalina to Reduce Salinity of Sea Water

2017 ◽  
Vol 1 (1) ◽  
pp. 9
Author(s):  
Ayub Wirabuana Putra
Keyword(s):  
Fresh Water ◽  
Dosage Form ◽  
Sea Water ◽  
Salt Water ◽  
Salinity Level ◽  
Powder Form ◽  
The Third ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Level Reduction

Algae Spyrogyra hyalina is one species of fresh water algae that is very easy to find in Indonesia. This species of algae known to have a lot of potential, which until now unknown. One potential that tried to explore in this research is the ability of these algae for decreasing the level of salt water salinity into fresh water. This research is an experiment with a completely randomized design (CRD), three treatments and three replications. Testing is done by performing algae arbsorbtion using three forms (powder, granule, and paper) with different biomass (1 g, 2 g, and 4gr). Preparations then coupled into a transparent pipe. The results showed the real effect of the decreased levels of salinity brine through the circuit. Filter with the powder forms with 4gr biomass has the highest salinity level reduction of 15%o,  then the dosage form of granules with biomass 4gr with decreased 5.23%o and the third dosage form of paper with 1 gram of biomass with a decrease of 4.23%o.Forms with other biomass have a decrease in the salinity level of not more than 4%o. Preparations with powder form and 4gr biomass can be used to reduce the salinity level in the salt water.

scholarly journals GROWTH OF HETEROTROPHIC BACTERIA IN SEA WATER POLLUTED BY SURF DETERGENT

2018 ◽  
Vol 1 (1) ◽  
pp. 29-34
Author(s):  
Dewan Pratama Novian ◽  
Irwan Effendi ◽  
Feliatra Feliatra
Keyword(s):  
Bacterial Growth ◽  
Heterotrophic Bacteria ◽  
Sea Water ◽  
Microbiology Laboratory ◽  
Detergent Concentration ◽  
Bacterial Populations ◽  
Marine Microbiology ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Seawater Samples

The research was conducted from February 2016 to April 2017, aimed to determine the effect of adding different concentrations of detergent namely SURF on the growth of bacterial populations in the seawater column. This research used experimental method with Completely Randomized Design. Seawater samples were analyzed at Marine Microbiology Laboratory, Fisheries and Marine Faculty of Riau University. Based on the results of the study, from day 0 untill day 10 after given detergent with different concentrations, bacteria experienced a decreasing trend of growth, in day 15 untill day 20, the trend of bacterial growth contaminated by detergent with different concentration relatively increased to stagnant. Based on the result of this study the addition of different detergent concentration in each treatment affect the growth of heterotrophic bacteria population in the sea water, where the higher concentration of detergent added the lower the ability of bacteria to grow and the ability of heterotrophic bacteria to survive at different concentrations of detergent, it can be concluded that the ability of heterotrophic bacteria to grow from days 0 to 20 has decreased in each of its concentrations.

scholarly journals GROWTH OF HETEROTROPHIC BACTERIA IN SEA WATER POLLUTED BY RINSO DETERGENT

2018 ◽  
Vol 1 (1) ◽  
pp. 58-65
Author(s):  
Cahyani Fitrah Tanjung ◽  
Irwan Effendi ◽  
Elizal Elizal
Keyword(s):  
Statistical Analysis ◽  
Bacterial Growth ◽  
Heterotrophic Bacteria ◽  
Sea Water ◽  
Observation Time ◽  
Microbiology Laboratory ◽  
Marine Microbiology ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Observation Times

This research was conducted in March-April 2017 at Marine Microbiology Laboratory, Faculty of Fisheries and Marine University of Riau. The purpose of this study is to determine the different concentration of detergent (0 ml/L, 1.5 ml/L, 3 ml/L, 4.5 ml/L, 6 ml/L) in different observation time (0, 5, 10, 15, 20) on the growth of heterotrophic bacteria in sea water. Completely randomized design was used in this experimental method. The results showed that bacterial growth of all treated samples decreased on the 5th day of incubation. However, the population began to increase on the 10th day of incubation. The count of maximum bacterial growth was 1.46 x 109 found in the 4.5 ml/L treated detergent, and the lowest growth was 3.73 x 107 in the 1.5 ml/L treated detergent. Statistical analysis (ANOVA) showed that the concentrations in different observation times on the growth of heterotrophic bacteria showed significant effect and the value was (P <0.005).

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