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All Journal JBIO: jurnal biosains (the journal of biosciences) Journal of Tropical Biodiversity and Biotechnology
Millah, Najmatul
UIN Sunan Ampel Surabaya
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology

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EFFECT OF VARIOUS SUBSTRATES IN NON-CIRCULATING HYDROPONIC SYSTEMS AND SOIL MEDIA ON THE GROWTH OF Gynura procumbens Hanik Faizah; Ikhlasotul Fawaidah; Najmatul Millah; Ninik Fadhillah; Muh. Ma’arif
JBIO: jurnal biosains (the journal of biosciences) Vol 6, No 3 (2020): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v6i3.20101

Abstract

The limitations of conventional soil cultivation in producing medicinal plants emerge an interest in searching various alternative cultivation systems, one of which is the hydroponic system. This study aimed to investigate the effect of various substrates in non-circulating hydroponic systems and soil media on the growth of Gynura procumbens. Non-circulating hydroponic cultivation of Gynura procumbens was carried out using stem cuttings. The stem cuttings were transferred to each net pot containing substrates such as rockwool, tree ferns fiber, and sawdust. The net pots were then placed in a tray comprising AB mix 6 ml/L of water. The lower 2-cm-portion of the net pots was immersed in a nutrient solution. Whereas in the conventional soil cultivation, the stem cuttings were transferred to the polybags containing soil media: compost (1: 1). After 28 days of cultivation, the plant growths were measured. The results showed that the use of various substrates in non-circulating hydroponics increased plant growth compared to conventional soil cultivation. Rockwool treatment obtained the highest number of leaves (14,833 ± 5,269 strands), number of roots (20,333 ± 6,121 stands), fresh weight (1.34 ± 0.511 g) and dry weight (0.088 ± 0.031 g).
Composition and Diversity of Dragonflies (Odonata) in Several Habitat Types in Lumajang Regency, East Java Province, Indonesia Susanto, Muhamad Azmi Dwi; Millah, Najmatul; Leksono, Amin Setyo; Gama, Zulfaidah Penata
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 2 (2024): June
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.88469

Abstract

Lumajang is one of the regency in East Java Province that has various types of freshwater ecosystems and have great potential as habitats for various insects, especially dragonflies. Dragonflies are insects that mostly live aquatically, so their existence is highly dependent on the condition of aquatic ecosystems. This study aims to compare the composition and diversity of dragonfly species in various habitat types in Lumajang. The study was conducted in lentic and lotic ecosystems in Lumajang. The method used was the Visual Encounter Survey (VES) technique adapted from the sweeping net. The data analysis used to determine differences in dragonfly species composition was the Bray-Curtis similarity analysis, while diversity analysis was conducted using the Shannon-Wiener index. This study recorded 29 species from seven families, including seven endemic dragonfly species found only on several islands in Indonesia. In the analysis of the Shannon-Wiener diversity index, the results show that in all research locations have a value of H'= 1.07‒2.11, where the Rice Field habitat is the location with the highest value among other locations, with a value of H' = 2.11. The similarity analysis of dragonfly species composition using Bray Curtis similarity showed that it was divided into three groups. The composition of dragonflies found in several habitats in Lumajang is different, which can be influenced by many factors such as site elevation, habitat type (lentic or lotic), and habitat condition, as well as several other factors such as microclimate and vegetation (related to food availability). 
Co-Authors Amin Setyo Leksono Hanik Faizah Ikhlasotul Fawaidah Muh. Ma’arif Ninik Fadhillah Susanto, Muhamad Azmi Dwi Zulfaidah Penata Gama