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Assessment of allellopathic potential of some traditional  rice cultivars in Sri Lanka

Allelopathy refers to the chemical inhibition of growth of one species by another. With the objectives of understanding allelopathic effects of sixty seven traditional rice cultivars, a field experiment and laboratory experiments were carried out in 2011 Yala season at Faculty of Agriculture, University of Ruhuna, Mapalana, Sri Lanka. Rice cultivars were transplanted according to the completely randomized block design with four replicates. Each replicate consisted of three rows of rice plants and data were collected from the middle row. After three months of transplanting, plant height (cm) and number of tillers/plant, were evaluated in traditional rice cultivars and total dry matter weight of weeds in 0.093 m 2 (1ft2) area encircled by the rice plant were evaluated in three replicates. According to the statistical analysis there were significant differences in plant height and tiller number/plant in traditional rice cultivars.

Fertilizer Response of some Sri Lankan Traditional Rice  Cultivars during Vegetative Growth Phase

Traditional rice cultivars in Sri Lanka conserve different abiotic and biotic tolerant traits but the yield of traditional rice cultivars is not as much of improved cultivars. Abiotic stress tolerance of some traditional rice cultivars were evaluated in previous studies at Faculty of Agriculture, Mapalana, Sri Lanka and this study attempted to understand the possibility of enhancing the yield and yield components of traditional rice cultivars by altering the fertilizer dose. A field experiment was carried out from October 2011 to April 2012 at the Faculty of Agriculture, Mapalana. Traditional rice cultivars are considered to be weaker in response to fertilizer. Four different fertilizer levels namely no fertilizer, half of the recommended dose, recommended dose and twice of the recommended dose were evaluated with forty Sri Lankan traditional rice cultivars to understand the response of them on different agronomic parameters.

Changes of Sugar and Starch Levels in Ambient Stored  Potato Derived from TPS

The experiment was conducted at the Laboratory of Agronomy Department, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during March to August 2013 to study the influence of variety and date of harvesting on changes of sugar and starch levels of potato derived from TPS at ambient storage condition. Potato variety and time of harvest had significant effect on nutritional aspects. Reducing sugar, total sugar increased with advancing storage period, whereas specific gravity, non-reducing sugar and starch content decreased with increasing storage period. Among the varieties HPS 364/67 was the best in respect of nutritional aspects. At harvest and 100 days after storage, the highest total sugar (0.61% and 0.82%) was observed from Lady Rosetta and harvest at 110 days after planting, while the lowest total sugar from HPS-364/67 and harvest at 80 days after planting. The results revealed that HPS 364/67 showed superior nutritional quality than other varieties

Integrated Effect of Organic manures and Nitrogen on  Yield Contributing Characters and Yield of Ric

An experiment was conducted to asses the integrated effect of organic manures and nitrogen on yield contributing characters and yield of rice (BRRI dhan29). The experiment consisted of 12 treatments, T1: Control condition (No chemical fertilizer, no organic manure); T2: 100% recommended N (120 kg N ha -1 ) + recommended P, K, S and Zn); T3: 100 kg N from urea + 20 kg N substituted by vermicompost (VC) + P, K, S and Zn; T4: 100 kg N from urea + 20 kg N substituted by cowdung (CD) + P, K, S and Zn; T5: 80 kg N from urea + 40 kg N substituted by VC + P, K, S and Zn; T6: 80 kg N from urea + 40 kg N substituted by CD + P, K, S and Zn; T7: 60 kg N from urea + 60 kg N substituted by VC + P, K, S and Zn; T8: 60 kg N from urea + 60 kg N substituted by CD + P, K, S and Zn; T9: 100 kg N from urea + 20 kg N substituted equally by VC and CD + P, K, S and Zn; T10: 80 kg N from urea + 40 kg N substituted equally by VC and CD + P, K, S and Zn; T11: 60 kg N from urea + 60 kg N substituted equal

Extraction of Niobium from Tin Slag

Tin slag a waste product of tin smelting contains many important metals such as niobium, tantalum, manganese, iron, aluminum, titanium, etc. Niobium metal which is one of the important metals found in tin slag has successfully been extracted using leaching and electrothermal method. The tin slag was crushed and ground to very fine particle sizes of nanometer level using laboratory ball mill, piston and mortar. The particles were sieved and 150nm and 180nm particle sizes range were used for this experiment. The samples were subjected to two leaching processes using hydrochloric acid and sodium hydroxide. The residues from the leaching processes were subjected to carbonchlorination at 300oC to produce Niobium oxide. The purity of Niobium metal extracted was calculated to up to 95% which means that tin slag from Nigerian Tin Smelting Company is a good source of high quality Niobium metal.

Private Ephesus Tours from Kusadasi 1

Ephesus excursions are some of the very good destinations regarding relatives searching for family trips in lovely Bulgaria. You can get yourself non-public travels info for you and the domestic or organization very easily online. For the launch experiment with ephesus excursions from kusadasi and like the archaeology and the chosen lifestyle with this remarkable region.

Influence of Mineral Phosphate Solubilizing Grampositive Bacteria on Growth and Yield of Cowpea (Vig

A pot experiment was conducted in glass house conditions for 120 days to study the effects of phosphorus solubilizing Gram-positive bacteria on plant growth, nutrient uptake and yield of cowpea (Vigna unguculata). Among all twelve bacterial treatments, the strain Bacillus spp (B3) has shown the greatest shoot length 67.70 cm, root length 60.5 cm and total dry weight 4.57 g plant -1 after 45 days of sowing. Similarly, in the same treatment the shoot length, root length and total dry weight were found 162.36 cm, 60.5 cm and 128.49 g plant -1 , respectively at harvesting and total yield was obtained 23.34 g plant -1 , which was significantly greater than all other treatments and uninoculated control treatments containing single super phosphate (SSP) and rock phosphate (RP) as phosphorus sources (7.93 g plant -1 and 3.81 g plant -1 respectively). The strains Bacillus thurengensis (T1 and T6) also have indicated a significant increase in above parameters

Dealing With Drug Addiction
by detoxmenow 0 Comments favorite 18 Viewed Download 0 Times

Drug addiction is when a person cannot do without the use of drugs. Due to large intake of drugs, the body becomes used to it and it cannot function without using drugs. Many people start using drugs out of curiosity and they just want to experiment and try it out. Many do it just for fun or peer pressure and it ends up turning to addiction.

Performance of Summer Tomato in Response to Maleic  Hydrazide

The experiment was conducted at the Horticulture farm, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh, during the period from May 2012 to August 2012. Summer tomato seedlings were sprayed with four levels of maleic hydrazide viz. 0, 20, 40 and 60 ppm were arranged in Randomized Complete Block Design with three replications. Plant growth retardant- maleic hydrazide @ 60 ppm decrease plant height, increases number of leaves, branch, flowers (33%) and fruits (35%) plant -1 . It also increases individual fruit weight and yield of tomato ha -1 about 32% and 57%, respectively but it did not affect the fruit length and diameter.

Analysis of Vitamin A in Jordanian Local Fresh Milk  Samples Using Liquid Chromatography Tandem-Mass

An auspicious method for the quantitative determination of vitamin A (retinol) was augmented in seven different Jordanian local fresh milk samples using liquid chromatography tandem -mass spectrometry (LC/MS/MS). The compound was separated with C18 Thermo fisher gold (4.50 x100 mm x 5 Å) column through a flow rate of 1 mL/min with isocratic mobile phase. Vitamin A acetate was used as an internal standard .The method was validated using triplicate analyses, relative recovery experiment and statistical analysis. Liquidliquid extraction was employed as a pre-concentration step with n-hexane -dichloromethane mixture (90%:10%) as an extraction solvent. The concentration range of the working standards was 0.0-1000.0 ng/mL. The correlation coefficient was found to be 0.9994. The limit 0f detection and limit of quantification were found to be 0.53 and 1.78 respectively. The 95% confidence interval was calculated to be 49.032 + 0.22.

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