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erfandari, ovy
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Social Sciences Veterinary

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Journal : Jurnal Biologi Tropis

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Growth Response of Cocoa Seedlings (Theobroma cacao L.) in several Combinations of Planting Media and Trichoderma sp. as Biological Fertilizer Erfandari, Ovy; Azis, Abdul; Nurmayanti , Sri; Sudirman, Albertus; Sahara, Ella
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7254

Abstract

Indonesia is the third largest cocoa (Theobroma cacao L.) producing country in the world. In 2019 cocoa production in Lampung was 58,852 tons with a plantation area of 79,356 ha, in 2020 it was 58,623 tons with an area of 79,469 ha and in 2021 58,414 tons with an area of 77,174 ha. One of the reasons for this decline in production is plant pest organisms (OPT), namely fruit rot disease caused by the pathogen Pytophthora palmivora. Use of Trichoderma sp. can increase plant resistance and growth and act as a biological controller outside and inside the soil. The research was carried out on the grounds of the Lampung State Polytechnic from August to November 2023. This research aims to determine the effect of planting media and administration of Trichoderma sp. on the growth of cocoa seedlings. The method used was a Randomized Block Design (RAK) with 4 treatments and 4 replications so that there were 16 experimental units. Treatment P0 consisted of: Top Soil (Control), P1 Top Soil + Compost Fertilizer (2:1), P2 Top Soil + Trichoderma sp. (50:1), P3 Top Soil + Compost + Trichoderma sp. (50:25:1). The results of the research on treatments P3, P2 and P1 affected plant height, number of leaves and stem diameter. The P3 treatment showed the best results for the variables plant height 39.50 cm, number of leaves 21.58 and leaf area 37.79 cm2. Treatment P2 showed the best results for the stem diameter variable of 0.66 cm.
Efficacy of Some Essential Oils that Have The Potential as Vegetable Feromones in Heterogeneous Croping Using The Trap Method Erfandari, Ovy; Hamdani, Hamdani; Wahyuningsih, Eka
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7594

Abstract

The use of pheromones as traps is often used to control various pest. Pheromones that are widely used today usually contain chemical ingredients which in the long term can certainly affect the environment and pest populations the. Pheromones made from essential oils are not widely used controlling pests. In order to formulate and apply the IPM concept it is necessary Testing the efficacy of several combinations of essential oils that have the potential to act as pheromones was carried out vegetable crops to implement pest control based on Integrated Pest Management (IPM). It is hoped that it will be possible to use pheromones derived from essential oils means in the process of controlling pests on plantation crops and commodities other plants and can also be integrated with pest control methods other integrated (PHT). This research was conducted using a randomized design complete (RAL) consisting of 6 (six) treatments which were repeated 3 times. Thus there are 18 (eighteen) experimental sample points. Treatment consists of use of vegetable pheromones derived from patchouli oil, cinnamon oil, oil nutmeg, clove oil, control (water) and combination (all treatments). Research data which was analyzed using Analysis of Variance (ANOVA) followed by a Real Difference test The smallest (BNT) with a significance level of 5% shows that patchouli oil has potential as a vegetable pheromone because it can trap 85 insect/non-insect organisms insect. Based on the results of identifying trapped organisms, insects from the order Diptera were the most dominant in each treatment.
Co-Authors Abdul Azis Abdul Aziz Albertus Sudirman, Albertus Eka Wahyuningsih Hamdani Hamdani Hamdani Kholidah F, Lu'Lu' M Tahir Maisuri Hardani, Maisuri Nabillah Anissa Novi Safitri Novitasari, Ani Nurmayanti , Sri Nurmayanti, Sri Retno Wulansari Roudatul, Upy Sahara, Ella Sismita Sari, Sismita Soleha Soleha Wahyuni, Reza Zulfikar, Gilang