International journal of life sciences 2020-01-21T18:25:38+00:00 Prof. Dr. Antonio Vazquez Perez Open Journal Systems <p style="text-align: justify;"><strong>IJLS</strong>&nbsp;is published in English and it is open to authors around the world regardless of the nationality. It is currently published three times a year, i.e. in&nbsp;<em>April</em>,&nbsp;<em>August</em>, and&nbsp;<em>December</em>.&nbsp;</p> Ration digest value and performance of male Bali ducks feed waste wine fermented with different levels 2020-01-21T18:25:38+00:00 A. W. Puger I. M. Nuriyasa <p style="text-align: justify;">The research was intended at increasing the productivity of Bali ducks through the utilization of fermented wine waste. The study used a <em>completely randomized design</em> <em>(CRD),</em> four treatment rations, and five replications. There were 40 experimental units. Each unit of experiment used five ducks. The total of ducks used was 100. The treatments imposed on ducks were ducks fed with no fermented wine (R0), containing 5% fermented wine (R1), containing 10% fermented wine (R2), containing 15% fermented wine (R3). The variables were examined namely performance, carcass, and digest coefficient. The results showed dietary consumption, final body weight, weight gain, and feed conversion did not show significant differences (P&gt;0.05) among treatments. The conclusion is the use of fermented grape wine waste up to 15% level not significantly affect the digestibility of rations, the performance, and carcass of male Bali ducks.</p> 2019-09-27T07:41:55+00:00 ##submission.copyrightStatement## Evaluation of post-harvest tomato practices (lycopersicum sculentum) 2020-01-21T18:25:38+00:00 Jimmy Cristhian Loor Jumps Gonzalo Rigoberto Menoscal Chilán Doris Marlene Sancán Murillo Alexander Patricio García Mendoza <p style="text-align: justify;">Despite the fact that tomato is the most cultivated vegetable in Portoviejo, there is still a need for change in the production farms with respect to the post-harvest handling of the product. The work shows an analysis of the results of inadequate post-harvest management of tomatoes, which was carried out as part of a research teaching work at the Paulo Emilio Macías Higher Technological Institute. The problem is centered on the lack of good post-harvest management practices for tomatoes on farms in the Portoviejo canton. The study was applied to 20 producers from 5 populations of rural Portovejenses, whose objective was to determine and quantify post-harvest losses, in the harvest-marketing phase, analyzing the decrease in the quality of the vegetable, due to handling factors, packaging, and transport conditions between farms and the commercialization center. The results obtained show that good post-harvest practices are not carried out and that the producers are unaware of the importance of proper management during collection, transport, and marketing, concluding that it is necessary to create a post-harvest management guide for the cultivation of tomato, to be applied in farms of the Portoviejo canton.</p> 2019-11-08T11:42:04+00:00 ##submission.copyrightStatement## Overcoming the failure of fruit-set and fruit drop of siam orange on off-season period through application of mycorrhizal inoculants and ZNSO4 micro fertilizer dosage 2020-01-21T18:25:37+00:00 Ni Komang Alit Astiari Ni Putu Anom Sulistiawati Ida Bagus Komang Mahardika I Nyoman Rai <p style="text-align: justify;">This research was carried out at Kintamani District, Bangli Regency, Bali-Indonesia, from February to October 2019 with aimed to overcome the failure of fruit-set and fruit drop of Siam orange on off-season period through application of mycorrhizal inoculants and ZnSO<sub>4</sub> micro fertilizer dosage. This experiment was arranged as a randomized block design consisted of 2 factors.&nbsp; The first factor was mycorrhizal inoculant (0, 50, 100 and 150 g/tree), while the second factor was the dosage of ZnSO<sub>4</sub> micro fertilizer (0, 5, 10 g/tree). All treatments were repeated 3 times. The results showed that the interaction between mycorrhizal inoculant treatment and ZnSO<sub>4</sub> micro fertilizer dosage did not significantly affect all of the variables observed.&nbsp; Mycorrhizal inoculant dose 150 g/tree could overcome the failure of fruit-set and fruit drop and improved the quantity and quality of fruit of Siam oranges on off-season, which was reflected by increased number of fruits harvest per tree (249,00 fruits), weight per fruit (106,10 g), weight of fruit harvested per tree (26,34 kg) and total dissolved solids (13.52% Brix), or increase 31,44%; 18,15%; 54,58%; and 35,74%, respectively, compared to without mycorrhizal inoculant i.e 189,44 fruit; 17,04 kg; 89,80 g and 9,96% Brix.</p> 2019-11-11T03:41:19+00:00 ##submission.copyrightStatement## Environmental impact of energy production with generators 2020-01-21T18:25:37+00:00 Yoan Pablo Rodríguez Monier Rodolfo Vila Feijoo Kenichi Gasbar Garcia Alvarez Majela Prieto Betancourt <p style="text-align: justify;">The generation of energy with fossil fuels, is one of the actions that currently affects the environment on the planet, The pollution that occurs in the generation processes causes traces that take many years to disappear, currently only the appropriate environmental management systems can control these effects by taking measures that can be educational, training and dissemination activities only a Global effort will help mitigate the negative effects caused in power generation. Energy is necessary for the continuity of development, which means that. At present, environmental pollution seems to have become an inevitable element and something that every modern society must pay if it does not want to give up its comforts, therefore in the process of introducing new technologies in energy generation must take measures that mitigate these negative impacts, valuing their magnitude and ways to proper gestate.</p> 2019-11-23T08:59:36+00:00 ##submission.copyrightStatement## Direct organogenesis in vitro propagation of local balinese banana with thidiazuron 2020-01-21T18:25:36+00:00 I Nyoman Rai I Made Sudana I Nyoman Gede Astawa Rindang Dwiyani Yuyun Fitriani <p style="text-align: justify;">Bali’s community needs for bananas are very high, but cannot be fulfilled from the production of bananas in Bali. The main problem for banana cultivation in Bali is the difficulty of getting seeds.&nbsp; Direct organogenesis is offered to overcome this problem.&nbsp; The objective of the research was to study direct organogenesis on in vitro propagation of local Balinese banana with Thidiazuron. The research was carried out at Tissue Culture Laboratory, Faculty of Agriculture, Udayana University, Denpasar, Bali. The experiment was laid out in a completely randomized design with five treatments of thidiazuron concentration, i.e. 0; 0.5; 1.0; 1.5, and 2.0 ppm. Each treatment was replicated 5 times. The Murashige &amp; Skoog medium added with coconut water and extract of bamboo shoots was used as a basic medium.&nbsp;&nbsp; The local Balinese bananas named Saba and Susu were used as source of planting materials.&nbsp; Explants were taken from shoot tips of suckers of newly growing plants. The results showed that the best treatment for both Saba and Susu, was 1 ppm of thidiazuron, as indicated by the highest number of plantlets produced, the number of shoots and plant height.</p> 2019-11-23T12:55:37+00:00 ##submission.copyrightStatement## The consumer perception on balinese local culture-based packaging design on white oyster mushroom chips (Pleorotus ostreatus) 2020-01-21T18:25:36+00:00 A. A. Sri Mahyuni I Nyoman Sucipta I Made Adnyana Made Sudiana Mahendra <p style="text-align: justify;">Food products competition of Micro, Small and Medium Enterprises (MSMEs) is due to the products of local businesses and imported products, both legal and illegal from China, Malaysia, Singapore, Thailand, and Japan. This is because most of the products of Micro, Small and Medium Enterprises (MSMEs) are less attractive, innovative and creative packaging. Food products are only wrapped in transparent plastic without any label or information, thus giving the impression of being less attractive. This makes Indonesian Micro, Small and Medium Enterprises (MSME) products less competitive compared to manufactured products and products from abroad. The packaging is one of the important marketing tools, not just as a wrapper. The packaging is a process related to the design and manufacture of containers or wrappers for a product. Packaging must be designed with a suitable shape and size and graphic design must be able to attract buyers. One of the graphic design elements as an attractive design of white oyster mushroom chips (Pleorotus Ostreatus) packaging as a souvenir is the use of Balinese local cultural markers in packaging design.</p> 2019-12-03T11:04:38+00:00 ##submission.copyrightStatement## The community structure of parasitoid associated with the cassava mealybugs on cassava crop in Bali province 2020-01-21T18:25:36+00:00 I Wayan Susila I Ketut Sumiarta I Wayan Supartha <p style="text-align: justify;">A parasitoid is a biological agent that can be used to control the mealybug of cassava crops. Detailed information on the community structure of parasitoid associated with the mealybug of cassava crop in Bali has not been reported. The research community structure of parasitoid associated with cassava mealybug in Bali has to be done to complete this data. This study began from April to August 2019. Samples were taken from 9 districts in Bali, namely Jembrana, Tabanan, Buleleng, Badung, Denpasar, Gianyar, Bangli, Klungkung and Karangasem Regencies. In each district, 5 sample units were selected with the diagonal method and 5 crops that were infected by mealybug were selected purposely in each sample unit. Furthermore, from 5 crops, 20-35 mealybug were taken per species so that the total number of mealybug taken per species per district were 100-175 adults.</p> 2019-12-20T04:40:18+00:00 ##submission.copyrightStatement##