ARPN Journal of Agricultural and Biological Science       ISSN 1990-6145
   
Custom Search
 
 
 

 
ARPN Journal of Agricultural and Biological Science                             March 2017 | Vol. 12  No. 3
 
Title:

Detection of lead (PB) and pesticide residues in three kinds of leafy green vegetables in Peri-Urban agriculture, Surabaya, Indonesia

Author (s):

Dwi Iriyani and Pangesti Nugrahani

Abstract:

This research was conducted in three peri-urban agricultures in Surabaya, namely Rungkut Subdistrict, Lakarsantri Subdistrict, and Sambikerep Subdistrict. The vegetables examined in this research are spinach (Amaranthus sp.), water spinach (Ipomoea reptans), and mustard greens (Brassica juncea L.). This research applied cross-sectional descriptive analysis method. The parameters measured in this research are lead (Pb) content, organophosphate pesticide residue level, chlorophyll level, water content, and pH of leaves. The result of lead (Pb) content analysis indicates that the lead content of spinach, water spinach, and mustard greens, cultivated in peri-urban agricultures in Surabaya, is still below maximum metal contamination rate published by National Standardization Agency. Similarly, the result of pesticide residue level indicates that there is no pesticide residue detected on spinach, water spinach, and mustard greens cultivated in peri-urban agricultures in Surabaya. The findings of this research indicate that chlorophyll level, water content, and pH of vegetables cultivated in peri-urban agricultures in Surabaya are lower than those of organic vegetables. Despite the fact that there was no strong correlation among these variables, there is a positive correlation between lead (Pb) content and water content and pH, while lead (Pb) content is negatively correlated with chlorophyll level.

 
       
 
Full Text  

Title:

Determination the concentration of the heavy metals in the cultivated cherries in the territory of mitrovica with ICP-OES technique

Author (s):

Skender Miftari, Sadija Kadriu, Mensur Kelmendi, Mehush Aliu, Blerim Baruti and Sabri Hajdini

Abstract:

It is known that all the vegetables and fruits that are in nature constantly are under the influence of external of natural and anthropogenic factors. Such influence also reflected to the cultivated fruits of cherries in Mitrovica and surroundings. Therefore, our object of study is to explore the degree of concentration of some heavy metals in cherries fruit, as a result of the impact of the chain-industrial activity has developed and continues to develop today in a lesser extent in Combine "Trepa. In this paper we have chosen to site-sampling Kelmend village, which is located in the north-eastern part of Mitrovica and neighborhoods Bair and '2 Korriku,' which are boroughs in the southern part of Mitrovica. We are set for this network monitoring for the fact that in the village Kelmend is landfill with industrial waste from the process of processing the Pb-Zn ore and two neighborhoods cited above, which are and may be affected by the landfill PIM in Shupkovc. The research methodology we based on the analytical technique ICP-OES in order to assess more accurately how the concentration of heavy metals in the cherry fruit.

 
 
 
Full Text

Title:

The quality improvement of two types of crysanthemums with bamboo-leaves based organic fertilizer

Author (s):

Noordiana Herry Purwanti, Nazarius Adi Sutoko and Fransisca Woro Rismiyatun

Abstract:

Crysanthemum is a decorative plant with high economical value. The main problem of chrysanthemum growers in Yogyakarta is the low quality of the flowers, characterized by low erectness and brightness of flowers, spots on flowers and leaves, and less-than-maximum flower sizes due to pests and diseases. One attempt to improve the lack of erectness of Crysanthemum is the provision of Si (silica). Organic Si can be obtained from fertilizer made from bamboo leaves. This study aims to determine whether bamboo-leaves based organic fertilizer could improve the quality of the two types of chrysanthemums. The study was conducted from March to August 2015 in the village of Panggeran, Hargobinangun, Pakem, Sleman, Yogyakarta and Production Laboratory of Institut Pertanian INTAN Yogyakarta. The design of treatment used was split plot with a completely randomized design. Treatments of main crysanthemum plot consisted of: spray and standards; treatments of organic fertilizer as subplots consisted of: cow manure, rice huskcharcoal, bamboo leaf compost and bamboo leaf charcoal, 3 kg / m2 each. Variables observed were color of flowers and flower quality: erectness, freshness, diameter of stem and others. The color data were obtained by vhromameter, values of CIE L * a * b * were converted to RGB and then descriptively analyzed. The quality data besides color variants were then analyzed by 5%-Duncan test. The results showed that bamboo-leaves-based organic fertilizer produced brighter yellow colors on spray type compared to treatment of manure and rice husk charcoal,. Organic fertilizer products gave the same quality. There were differences in the appearances of the two types of chrysanthemums.

 
 
 
Full Text

Title:

Effect of drying method on nutrient integrity of selected components of pumpkin (Cucurbita Moschata Duch.) fruit flour

Author (s):

Jedidah W. Kiharason, Dorcas K. Isutsa and Peninah N. Ngoda

Abstract:

Pumpkin is a multi-purpose fruit and leafy vegetable with abundant nutritional value and economic potential as a food and industrial crop. Cucurbita moschata is the most common, heat-tolerant, better thriver in tropical Africa, but remains under-utilised. Food preservation prolongs consumption period, diet variety and income generation for manufacturing companies. However, preservation is a central problem facing developing countries, with huge post-harvest losses of perishable commodities. Food availability that decreases just a few months after harvest limits development of high-value agri-business industries specializing in highly perishable products. Although processing and preservation treatments lead to high convenience, the subsequent nutritional lossremains a challenge. There is need to find ways of minimizing nutritional losses. Subsequently, the present study grew and subjected mature pumpkin fruits to three open solar (OSD), oven electric (OED) and enhanced solar (ESD) drying methods in an incomplete randomized block design. Dry fruit slices were milled and analysed for -carotene, protein, zinc, iron, calcium, energy, and moisture contents. There was a significant (P<0.05) difference in length of time taken to dry pumpkin fruit slices using the three methods. Oven drying took shortest time of 7.25 hours to attain15.15% final moisture content (MC), while OSD took 9.5 hours to attain 14.91% MC, but these MC were above safe levels. Enhanced solar drying achieved safest 12.82% MC, but in a longer time of 13.2 hours. A significant (P<0.05) difference resulted in -carotene, protein and zinc contents of the four flours. There was consistent increase of -carotene and protein contents in dried flour compared to fresh fruit, while minerals and energy slightly reduced (P>0.05). Oven dried flour had 74.84 /g, while fresh fruit had 16.6 /g-carotene. Protein ranged from13.8% to 16.5% in dry flours compared to 2.6% in fresh fruit. Zinc, iron, calcium and energy decreased in dry flours compared to fresh fruit, and ranged from: 9 to 44 ppm zinc, 49.5to 94.5 ppm iron, 525 to 1,116.82ppm calcium, and 3.6 to 4.2 kcal/g energy. Drying generally increases certain nutrients in reduced bulk as it did-carotene and protein, but also reduces others as it did zinc, iron, calcium and energy through oxidation. There is need to invest in ESD as an effective method of pumpkin fruit and nutrient integrity preservation, as well aspost-harvest loss prevention.

 
 
 
Full Text  

Title:

Effects of nitrogen on chlorophyll fluorescence and the relationship between chlorophyll content and spad values in sugar beet (Beta Vulgaris L) under drip-tape system

Author (s):

Hamid Ghasemi, Mohammad Ali Esmaeili and Rahim Mohammadian

Abstract:

Determining Chlorophyll Content with Spectrophotometric Devices and Chlorophyll Extraction is a Time and Cost inefficient method so in the present Study finding a relation between Chlorophyll a, b, and Total content with Spad Values is one of the objectives. Moreover, Chlorophyll Fluorescence is a Photosynthetic activity index that is used in Biotic and Abiotic Stress studies. Nutrient deficiencies (i.e., nitrogen) as an abiotic stress can decrease yield, another aim of the current study is to determine relations between Nitrogen fertilizer rate and Chlorophyll Fluorescence and also Total Nitrogen accumulation in sugar beet organs. in order to it, an experiment carried out under tape-drip irrigation in 2013 and 2014 in Karaj, Iran, in Strip factorial plot with a randomized complete block arrangement with 2 levels of plant Spacing (14 and 20 cm), 2 levels of Planting Pattern (40-60 and 40-50) and Nitrogen Fertilizer treatment in four levels was: 0, 50, 75 and 100% of what had been recommended for furrow irrigation. The results showed nitrogen causes significant Changes on Chlorophyll A, Chlorophyll Total and SPAD Value (P< 0.5). Means comparison indicated that using 75% and 100% of nitrogen recommended for furrow irrigation had the best impacts on these traits. Correlation between all this traits implies that Chlorophyll a, b and Total measured with Spectrophotometry and Spad Values had positive and significant relations with themselves and with Impure sugar Yield (P< 0.01) the results also showed nitrogen causes significant Changes on Nitrogen accumulation in different Sugar beet Organs (P< 0.01) in a way that the treatment with maximum and minimum fertilizer rate had the maximum and minimum nitrogen accumulated in their organs respectively. The minimum chlorophyll Fluorescence was measured in the treatments that had the minimum fertilizers rate.

 
 
 
Full Text  

 

 

     

  

   

  

  

  

 

 

 

 

 

 

 

 

 

 

 

 

 

       arpnjournals.com                                                       Publishing Policy                                                  Review Process                                           Code of Ethics