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Propagation of the Vanda helvola Orchid In Vitro Muharyati, Yully; Setiyadi, Muhammad Wahyu; Khatimah, Ainul; Ardiansyah, Ardiansyah
Jurnal Pijar Mipa Vol. 19 No. 3 (2024): May 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i3.6600

Abstract

Orchids are more economical and tall than plants and other decorations. One of the orchids cultivated is the Vanda orchid. Seed orchid size is small and does not have endosperm, so it is not easy to germinate in nature, so tissue culture is one multiplication orchid in amount a lot and a short time. This study aims to know the growth of the seed orchid Vanda helvola on different media for 12 days after plant. Seed orchid V. helvola grown on modified Murashinge and Shoog (MS), modified Vaccin and Wend (VW) media and organic media. The research was conducted at the Tissue Culture Laboratory of the UPT Center for Food Crops and Horticulture (BBIPTH), Luwus Tanaban, from February to May 2023. The research method used was observation and experimentation, and the research design used RAK (group random design). Research shows modified MS Media, modified VW and organic capable change seeds orchid V. helvola. Modified MS and modified VW media can induce seed orchid V. helvola germination, and MS media can induce formation protocol.
Diversity of Grasshopper on Agricultural Land and Savana in Dompu Regency, Indonesia Khatimah, Ainul; Leksono, Amin Setyo; Yanuwiadi, Bagyo
Biotropika: Journal of Tropical Biology Vol. 10 No. 3 (2022)
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2022.010.03.06

Abstract

Grasshopper is one type of insect known as a plant pest that quite affects agricultural production. Grasshoppers also have benefits as natural predators and maintain ecological balance. One area where no research has been carried out on grasshopper diversity is Dompu Regency, West Nusa Tenggara, Indonesia. This research was conducted at 4 locations in Dompu, including corn, ex-corn, intercropping, and Doroncanga agricultural land, by making four transects at each location. Grasshoppers were collected using the insect net, and hand collecting was carried out at 07.00 and 16.00 WITA. The environmental factors that were calculated were air temperature, light intensity, wind speed, and air humidity, while the biotic factors observed were plant vegetation at each location and predators. Data analysis was performed using the Shannon-Wiener diversity index, evenness index, dominance index, and Margalef index. The results of this study indicate that Dompu Regency has the potential for diversity of grasshoppers with moderate criteria where the diversity of grasshoppers is strongly influenced by plant vegetation and human treatment on agricultural land.