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Journal of Biodiversity and Biotechnology
Published by Universitas Sebelas Maret
ISSN : 27755223     EISSN : 28083229     DOI : https://doi.org/10.20961/jbb
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal of Biodiversity and Biotechnology is a scientific journal focused on biodiversity and biotechnology published twice a year (June and December) managed and published by Universitas Sebelas Maret. This journal covers original research in the following areas: biodiversity and environment, biotechnology, agriculture biotechnology, food biotechnology, medical biotechnology, bioinformatics, molecular biology, biochemistry, bioinformatics, phyto-pharmacy, herbal medicine, and animal science. Other topics are welcome if it discusses about biodiversity or biotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 5 Documents
 1 
Search results for , issue "Vol 5, No 2 (2025)" : 5 Documents clear
Phenology Dynamics: Flowering and Fruit Development of Prabu Bestari Grape Variety in Denpasar Ni Ketut Karina Sari; Dewa Ayu Ari Ari Febriayanti; Ni Nyoman Ari Putri Murtiyah; Dicky Marsadi
Journal of Biodiversity and Biotechnology Vol 5, No 2 (2025)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v5i2.109980

Abstract

Grape (Vitis vinifera L.) var. Prabu Bestari is an important fruit commodity, but information regarding its reproductive phenology is still minimal. This qualitative descriptive study aimed to determine the time periods required for key phenological stages, namely bud burst, bloom, fruit set, and fruit ripening (harvest), which are crucial for breeding and optimizing production. The research was conducted at the Faculty of Agriculture's Experimental Garden (0–9 masl). The observations revealed a rapid reproductive growth cycle. The average time from pruning to shoot emergence (bud burst) was 7 days after pruning (dap). The phase from bud burst to flowering lasted 18–19 days. Full bloom was very brief, lasting only 1 day, and the phase from flowering to fruit set required 1–3 days. The longest period was from fruit set to harvest, lasting 48 days. Overall, the cycle from pruning to harvest for the Prabu Bestari variety required an average of 120 dap. This phenological data provides an essential basis for effective cultivation management.
Effectiveness of Biofilmed Biofertilizer with Balanced Phosphate Fertilizer Dosage in Suppressing Purple Blotch Disease Intensity and Increasing Garlic Yield on Andisol Soil in Tawangmangu Mohammad Fikri Halim Madjid; Hadiwiyono Hadiwiyono; Sudadi Sudadi; Susilo Hamberg Poromarto
Journal of Biodiversity and Biotechnology Vol 5, No 2 (2025)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v5i2.114347

Abstract

Garlic productivity in Indonesia is often constrained by purple blotch disease (Alternaria porri) . A sustainable control alternative involves utilizing biofilmed biofertilizer (BiO2) combined with phosphate (P) fertilizer . This study aimed to assess the effectiveness of balancing BiO2 and P dosage in suppressing purple blotch disease intensity and increasing garlic yield on Andisol soil in Tawangmangu . The research was conducted from May to September 2024 using a single-factor Completely Randomized Design (CRD) with four treatments: P0 (0% P + 100% NK + BiO2), P1 (50% P + 100% NK + BiO2), P2 (100% P + 100% NK + BiO2), and P3 (100% NPK without BiO2) . Data were analyzed using ANOVA followed by DMRT at a 95% significance level . Results indicated that combining BiO2 with P fertilizer was highly effective; it suppressed leaf spot disease intensity by 49.47% and increased garlic yields by 20.91% compared to the control . This confirms that integrating BiO2 with appropriate P fertilization is a viable strategy for improving garlic productivity in Andisol soil .
Effects of Rice Varieties on Attractiveness, Population Development, and Weight Loss Caused by Sitophilus oryzae During Storage Dicky Marsadi; Ketut Ayu Yuliadhi
Journal of Biodiversity and Biotechnology Vol 5, No 2 (2025)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v5i2.113966

Abstract

Sitophilus oryzae is one of the major pests of stored rice, causing both quantitative and qualitative losses during storage. This study aimed to analyze the effects of different rice varieties on attractiveness, population development, and weight loss resulting from S. oryzae infestation. The research was conducted using a free-choice attractiveness test, population development observations, and weight loss measurements on four rice varieties, namely red rice, white rice, black rice, and brown rice. The results indicated that rice variety significantly affected the behavior and population development of S. oryzae. Red rice exhibited the highest level of attractiveness and the greatest population growth rate, followed by black rice and brown rice, whereas white rice showed the lowest attractiveness, population growth rate, and weight loss. The pattern of rice weight loss corresponded to pest population levels, with varieties harboring higher S. oryzae populations experiencing greater percentages of weight loss. Differences in S. oryzae responses among rice varieties are likely associated with variations in the physical and chemical characteristics of the grains, particularly nutrient content and grain layer structure, which influence feeding preference and developmental success of the pest. These findings suggest that rice varieties have potential as an important component of postharvest pest management strategies, especially in reducing storage losses through the selection of varieties that are relatively more resistant to S. oryzae infestation.
Genetic Variability and Trait Correlations of Melon (Cucumis melo L.) Genotypes Heru Anggara; Dicky Marsadi; Listihani Listihani
Journal of Biodiversity and Biotechnology Vol 5, No 2 (2025)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v5i2.113228

Abstract

Melon (Cucumis melo L.) is an important horticultural crop. Melon breeding programs require comprehensive information on genetic variability and selection-related traits. Genetic variability and correlations among plant characters are essential parameters for effective selection in the S2 Population. This study aimed to evaluate the genetic variability of several melon genotypes and to analyze correlations among plant characters as a basis for selection. The experiment was conducted using fourteen melon genotypes derived from selfed populations at the S₂ generation. The study employed a randomized complete block design with a single factor, consisting of 14 S₂ melon genotypes and four replications. The experimental unit is one individual plant in a polybag. The Observations of qualitative traits indicated the presence of variation within the genotypes for fruit rind color and fruit flesh color. Genotypes G2 exhibited the greatest fruit length (13.47 cm) and fruit diameter (11.95 cm). Genotypes G15 showed the highest total soluble solids content (150 Brix), while genotypes G7 had the thickest fruit flesh (3.25 cm). Broad-sense heritability estimates of the observed traits ranged from low to moderate. The traits of fruit length, fruit diameter, and fruit weight exhibited moderate broad-sense heritability (>45%). They were positively and significantly correlated with fruit weight, indicating that these traits can be used as selection criteria for fruit weight in subsequent plant breeding programs.
The Effect of Various Fertilizer Doses on Sugarcane Seed Growth and Productivity Dony Agung Wicaksono; Deny Bagus Surendra; Febry Ari Marpaung; Nanik Tri Ismadi
Journal of Biodiversity and Biotechnology Vol 5, No 2 (2025)
Publisher : Pusat Penelitian dan Pengembangan Bioteknologi dan Biodiversitas (P3BB) LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jbb.v5i2.111756

Abstract

Fertilization plays a crucial role in promoting plant growth, increasing yield, and improving crop quality. Current fertilization recommendations for sugarcane are generally based on production-oriented cultivation with a 12-month growth period, while specific fertilization requirements for seed sugarcane remain insufficiently studied. This study aimed to determine the optimal fertilizer dosage for sugarcane seed by evaluating the effects of different fertilizer combinations on plant growth and productivity. The research was conducted at the Experimental Farm of Puslit Sukosari. The experimental area covered 0.046 ha, with planting rows 8 m in length and a row factor of 1042 rows/ha. Four fertilizer treatments were applied: (A) ZA 640 kg/ha, SP 36 48.1 kg/ha, and KCl 255 kg/ha; (B) ZA 531 kg/ha, SP 36 40 kg/ha, and KCl 213 kg/ha; (C) ZA 427.5 kg/ha, SP 36 31.9 kg/ha, and KCl 171 kg/ha; and (D) ZA 321.3 kg/ha, SP 36 23.9 kg/ha, and KCl 129 kg/ha. The results showed that increasing fertilizer dosage did not result in a linear increase in seed sugarcane productivity. The highest seed productivity and optimal growth performance, including the number of stalks, stalk height, stalk diameter, and seed weight per hectare, were obtained under Treatment B. In contrast, the lowest productivity was observed under Treatment D. Considering both fertilization efficiency and production costs during the vegetative growth phase, seed sugarcane plantations may be fertilized using the complete fertilizer combination in Treatment B or solely with nitrogen fertilizer at a rate of ZA 531 kg/ha.

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