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Journal : Pro-Life

Struktur Komunitas Collembola Pada Habitat Gua Lowo dan Kebun Warga di Desa Melirang Kabupaten Gresik, Jawa Timur Ria Safitri; Siti Zulaikha; Saiful Bahri; Saiku Rokhim; Ita Ainun Jariyah; Nirmala Fitria Firdhausi
Jurnal Pro-Life Vol. 9 No. 3 (2022): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

Abstract

Collembola is one of the soil fauna that acts as the smallest constituent component for the balance of the ecosystem. This study aims to compare the structure of the Collembola community in the habitat of Lowo Cave and Citizen's Garden in Melirang Village, Gresik Regency. This research uses descriptive exploratory research with soil drill method for soil sampling and pitfall trap for ground surface insect traps. Based on Collembola data obtained in Lowo Cave, there are 3 species with a total of 87 individuals, while in Citizen's Garden there are 6 Collembola species with a total of 145 individuals The results of the analysis of this study indicate that the Diversity Index value in the Lowo Cave habitat is H'= 0.859735 and in the Citizen's Garden a habitat with the value H' = 1.475675, the Evenness Index value in the Lowo Cave is E = 0.782565 and in the Citizen's Garden with a value of E = 0.82359, the value of the Dominance Index in Gua Lowo is 0.48104 and in the Citizen's Garden is 0.282949, the Relative Frequency of Ascocyrtus sp. and Hypogastrura consanguinea have a relative frequency of 100%.
PENGARUH KONSENTRASI DAN LAMA PERENDAMAN KOLKISIN TERHADAP KARAKTER POLIPLOIDI PADA TANAMAN LILI HUJAN (Zephyranthes rosea Lindl.) Putri, Vivin Diana; Faizah, Hanik; Firdhausi, Nirmala Fitria
Jurnal Pro-Life Vol. 10 No. 3 (2023): November
Publisher : Program Studi Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/jpvol6Iss2pp102

Abstract

Zephyranthes rosea Lindl. is one of Indonesia's export commodities. Research on the induction of polyploid Z. rosea to increase sales value by increasing its phenotype is still limited and limited to seed organs. The aim of this research was to determine the effect of colchicine concentration, soaking time, and the interaction of the two on polyploidy characters. Z. rosea root organs were treated with colchicine (0%, 0.025%, 0.05%, 0.075%, and 0.1%) and different soaking time (6 hours, 12 hours, 18 hours, and 24 hours) in this study. The result showed that there was a significant effect of colchicine concentration, soaking time, and the interaction of of the two on leaf length, stomata density, and dry weight while flowering time, leaf width, stomata length, stomata width, fresh weight, and flower color were not significantly affected. The lowest leaf length was produced by 0.1% colchicine (21.392 cm), 6 hours of soaking time (22.693 cm), and the interaction of 0.1% colchicine with 6 hours of soaking time (20.633 cm). The highest density of stomata resulted from 0.025% colchicine (787.247/mm2), 6 hours of soaking time (762.626/mm2), and the interaction of 0.025% colchicine with 24 hours of soaking time (906.566/mm2). The highest dry weight resulted from colchicine 0.075% (16.433 gram), soaking time of 12 hours (16.527 gram), and interaction of colchicine 0.075% with soaking time of 12 hours (19.467 gram). Because there were more polyploid characters which were not significantly affected, the polyploid Z. rosea had not been formed in this study.