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Diversity and Evenness of Medicinal Plants in Bantarbolang Nature Reserve Block 19-21, Pemalang, Central Java Mufadila Day Muhyi; Edy Yani; Pudji Widodo
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 1 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.126 KB) | DOI: 10.20884/1.bioe.2020.2.1.1752

Abstract

This study was conducted in Bantarbolang Nature Reserve located in Kebon Gede village, Bantarbolang sub-district, Pemalang Regency. Bantarbolang is one of the nature reserves that have the structure and composition of complex vegetation so that there is a diversity of plants which can grow in a conservation area, such as medicinal plants diversity. The objectives of this study were to know the various species of medicinal plants in the Bantarbolang nature reserve block 19-21 and to know the evenness of medicinal plants in the Bantarbolang nature reserve block 19-21. This study was conducted with survey methods and sampling using a systematic square plot. The variables observed consists of dependent variables i.e. the species of medicinal plant and independent variables include environmental factors i.e. temperature, light intensity, humidity, canopy cover, and soil pH. The parameters observed are the number of species and individual number of medicinal plants. The data were analyzed using the Important Value Index (IVI), Diversity Index (H'), Evenness Index (e) and Similarity Index (IS). The plant samples were made into voucher herbarium and stored in PUNS for future references. The results of the study showed that the diversity of medicinal plants in the Bantarbolang Nature Reserve Block 19-21 was high (H’≥0) with 48 species from the 33 families of medicinal plants. Evenness of medicinal plants in Bantarbolang nature reserve block 19-21 is low (e closer to 0). Alocasia cucullata is a dominant species of medicinal plant of a distance of 0-200 meters from the forest edge. Keywords: Bantarbolang nature reserve, diversity, medicinal plant
Epiphytic Orchid Inventory and The Host In Bantarbolang Nature Reserve - Central Java Rahmi Mutia Mawardi; Wiwik Herawati; Pudji Widodo
BioEksakta : Jurnal Ilmiah Biologi Unsoed Vol 2 No 1 (2020): BioEksakta
Publisher : Fakultas Biologi Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.9 KB) | DOI: 10.20884/1.bioe.2020.2.1.1830

Abstract

Bantarbolang Nature Reserve is located in the northern part of Central Java Province. The study aiming to verify the plant species of epiphytic orchids and the host tree in the area of Bantarbolang Nature Reserve was conducted in February to April 2019. The research method used in the research was explorative methods. Data were analyzed descriptively. It was recorded that there were 5 epiphytic orchid species, i.e. Rhynchostylis retusa, Aerides odorata, Cymbidium bicolor, Dendrobium crumenatum and Ascocentrum miniatum. The number of orchids found was 148 individuals, the most common species was Rhynchostylis retusa. The host trees are teak (Tectona grandis), putat (Barringtonia acutangula), bulu (Ficus annulata) and bungur (Lagerstroemia speciosa) with characteristics of hard stems, cracked surface texture, rough, mossy and not easy to peel.
Malay Apple (Syzygium malaccense) Fruit Calendar: A Case in Central Java Pudji Widodo; Elly Proklamasiningsih
Al-Kauniyah: Jurnal Biologi Vol 16, No 2 (2023): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v16i2.23872

Abstract

 AbstractMalay apple (Syzygium malaccense) is a kind of popular fruit tree originally from Indo-Malayan-Region or South East Asia. There are many environmental factors affecting the flowering time, infrutescence number, fruit size, and fruit number, such as fruit position on the spur, spur size, fruit number set on the spur, and the date of flowering. The objectives of this study were to find out the fruit production during dry and wet seasons, so that fruit calendar can be determined.  The method used in this study was survey and observation on Malay apple trees in Banyumas, Purbalingga, and Kebumen from 2018 to 2021. The results of this study showed that June, July, and August when the precipitation was the lowest, the fruit number is the highest, and fruit size is the smallest (145–175 mL). On the other hand, when the precipitation was high (September-April), the fruit was the largest (180–500 mL).  Fruit harvest time might change every year depending on climatic factors such as average daily temperature and precipitation. There is no specific harvest time for Malay apples. The implementation of the results of this research is that we do not need to predict when the Malay apple harvest season will be, because the harvest time can be at any time.AbstrakJambu bol (Syzygium malaccense) merupakan salah satu jenis pohon buah-buahan populer yang berasal dari Wilayah Indo-Malayan atau Asia Tenggara. Banyak faktor lingkungan yang memengaruhi waktu berbunga, jumlah bunga, ukuran buah, dan jumlah buah, seperti posisi buah pada tajuk, ukuran tajuk, jumlah buah tiap dompol, dan tanggal berbunga. Penelitian ini bertujuan untuk mengetahui produksi buah pada musim kemarau dan musim hujan, sehingga dapat ditentukan kalender buah. Metode yang digunakan dalam penelitian ini adalah survei dan observasi pada pohon jambu bol di Banyumas, Purbalingga, dan Kebumen dari tahun 2018 sampai dengan tahun 2021. Hasil penelitian ini menunjukkan bahwa pada bulan Juni, Juli, dan Agustus curah hujan paling rendah, jumlah buahnya paling tinggi, dan ukuran atau volume buahnya relatif  paling kecil (145–175 mL). Sebaliknya, ketika curah hujan rata-rata tinggi (September-April), buahnya berukuran besar, dengan volume 180–500 mL. Waktu panen buah dapat berubah setiap tahun tergantung pada faktor iklim seperti suhu harian rata-rata dan curah hujan. Hasil penelitian ini menunjukkan bahwa tidak ada waktu yang spesifik untuk waktu panen jambu bol. Implementasi dari hasil penelitian ini adalah bahwa kita tidak perlu memprediksi kapan musim panen jambu bol, karena waktu panen bisa kapan saja.