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All Journal Journal of Biodiversity and Biotechnology
Samanhudi Samanhudi
Departement of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry

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Morphological Character of The Natural Orchid Phalaenopsis Spp. Results of Colchicine Polyploidy Induction Sri Hartati; Samanhudi Samanhudi; Endang Suprapti
Journal of Biodiversity and Biotechnology Vol 4, No 2 (2024)
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.v4i2.108518

Abstract

Induction of polyploidy in orchids can cause morphological changes such as larger leaf and flower sizes, longer bloom durations, and sharper flower colors. Morphological characterization needs to be done to determine the morphological changes that occur after colchicine treatment. This study aims to determine the morphological characters of natural orchids Phalaenopsis spp. polyploidy induction using colchicine. The research was carried out from November 2021-February 2022 at the Screen House, Faculty of Agriculture, UNS. The plant materials used included P. violacea from Sulawesi, P. violacea from Java, and P. Ambilis from Ambon. The treatment used was colchicine 1,250 ppm which was applied to flower buds using the cotton method with 2 replications. The collected data were analyzed by descriptive analysis and paired T-test using IBM SPSS Statistics 26 to compare the average performance of mutant plants with control plants. Induction of polyploidy using colchicine with a concentration of 1,250 ppm could increase the size of leaves, flower stalks, flowers, dorsal and lateral sepals, and petals in P. violacea from Java, P. violacea from Sulawesi, and P. amabilis from Ambon.
Karyotype Analysis of Phalaenopsis Hibryds with Colchicine Induction Sri Hartati; Samanhudi Samanhudi; Hasna Afanin
Journal of Biodiversity and Biotechnology Vol 4, No 1 (2024)
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.v4i1.101961

Abstract

Phalaenopsis hybrid is one of the orchids that is very important in the horticultural market as an ornamental plant whose demand continues to increase. This causes the need for breeding in order to obtain new varied flower characters as desired by polyploidization. Polyploidy induction in Phalaenopsis hybrids was carried out using colchicine. The purpose of this study was to determine the karyotype pattern of Phalaenopsis hybrids. The research was conducted at the Screenhouse of the Faculty of Agriculture and Integrated Laboratory Unit of Sebelas Maret University, Surakarta in August 2021-March 2022. Polyploidy induction was carried out by dripping 1500 ppm concentration of colchicine on flower bud of Phalaenopsis hybrid. The method used in this research is squashing. The experimental results showed that the karyotype pattern in control Phal. Golden Tree was 2n=3x-7=50m, while in Phal. Fuller Sunset and Phal. OX X-ray was 2n=4x=76m. The karyotype pattern in orchids with colchicine induction was Phal. Golden Tree 2n=6x-14=100m, while in Phal. Fuller Sunset and Phal. OX X-ray 2n=8x=152m. 
Co-Authors Endang Suprapti Hasna Afanin Sri Hartati