p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Jurnal Biologi Tropis
Claim Missing Document
Check
Articles

Found 2 Documents
Search

The Effect of NPK Fertilizer and Chicken Manure Fermented on Growth and Yield of Cucumis melo L. (Alisha Variety) Al Adawiah, Alin Robiah; Priyadi, Rudi; Billyan, Billyan; Adawiah, Alin Robiah Al; Dina, Aslikh Lana
Jurnal Biologi Tropis Vol. 25 No. 4 (2025): 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.v25i4.10129

Abstract

Melon is a horticultural crop that has high-income potential, but in 2023 the production of melon in Indonesia declines drastically. Hence, research and collaboration to increase the production of melon in Indonesia is essential. This study was aimed to analyze the effect of NPK fertilizer and chicken manure fermented on growth and yield of melon (Alisha variety). This study conducts by analysing the effect of combination of NPK fertilizer and chicken manure fermented on growth and yield Cucumis melo L. alisha variety using Randomized Group Design (RGD) consisting of 7 treatment combinations. The parameters of plant height, number of leaves, stem diameter, fruit weight, and the level of sweetness (oBrix) of melon fruit were analyzed using Duncan’s Multiple Range Test (DMRT) at P<0.05. The results show that 300 kg/ha NPK fertilizer + 0 t/ha chicken manure fermented gave the best growth and yield with a melon weight of 61.50 t/ha, however, it was not significantly different from the combination treatment of 100 kg/ha NPK fertilizer + 15 t/ha chicken manure (F) on fruit weight per plot. The results of this study will be the basis of considerations in using a combination of NPK and chicken manure fermented to increase the growth and yield of Cucumis melo L. (Alisha variety).
Glyphosate Tolerant Bacteria from Rhizosphere of Kangkong (Ipomoea reptans Poir.) and Soybean (Glycine max L.) Dina, Aslikh Lana; Solihah, Jumailatus; Khusnuryani, Arifah
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8504

Abstract

The use of organophosphate pesticides has some risks for human health and environment. One of the organophosphate pesticides is glyphosate. Various methods used to detoxify organophosphates including chemical methods, incineration, and landfills, produce acid and alkaline compounds, leaching pesticides around land and groundwater areas, as well as toxic emissions to the environment. The bacteria with this ability can be isolated from areas contaminated with glyphosate. Kangkong (Ipomoea reptans) and soybean (Glycine max) were chosen because of these plants are commonly found in rice fields which are areas that are frequent exposure to pesticide. The interaction between rhizosphere bacteria and plants as well as the composition of existing bacteria are closely related to the remediation occured. Kangkong and soybeans (2 weeks) were treated with glyphosate 377 mM. Soil pH was measured in third and seventh days after treat with glyphosate. The bacteria were isolated a week after treatment with glyphosate, and cultured in NA medium containing 5 mM and 10 mM glyphosate. The growing bacteria were selected and re-cultured in NA + glyphosate 10 mM medium. The selected isolates were tested for glyphosate degradation ability in Mineral Salt Media containing glyphosate 5 mM and glucose 50 mg/L. Eight isolates of bacteria grew in media containing glyphosate, i.e. Kd1, Kd2, Kd3, Kd4, Kd5 from soybeans rhizosphere, and K1, K3, K4 from spinach rhizosphere. The isolate Kd4 and K4 grew more abundantly compared the other isolates, exhibited good tolerant of glyphosate. From glyphosate degrading test, the isolate from soybean rhizosphere showed more tolerance than the isolate from kangkong rhizosphere. The molecular identification revealed that both isolates belong to species Bacillus mycoides.