Jurnal Riset Akuakultur
Vol 4, No 2 (2009): (Agustus 2009)

PERTUMBUHAN SPORA RUMPUT LAUT Gracilaria verrucosa SECARA IN VITRO DENGAN PENAMBAHAN HORMON PENGATUR PERTUMBUHAN PADA TANAMAN

Emma Suryati (Balai Riset Perikanan Budidaya Air Payau, Maros)
Rachmansyah Rachmansyah (Balai Riset Perikanan Budidaya Air Payau, Maros)
Sri Redjeki Hesti Mulyaningrum (Balai Riset Perikanan Budidaya Air Payau, Maros)



Article Info

Publish Date
30 Nov 2016

Abstract

Perbaikan mutu genetik rumput laut Gracilaria verrucosa dapat dilakukan melalui perkawinan silang dari spora atau melalui fusi protoplas. Perkembangan spora rumput laut sangat tergantung pada media tumbuh dan kondisi lingkungan dimana spora tersebut berada. Untuk memacu perkembangan spora pada kondisi laboratorium, diperlukan perlakuan khusus agar spora dapat tumbuh dan bertahan hidup. Pemberian kinetin yang berfungsi sebagai hormon perangsang tumbuh pada tanaman dapat mempercepat pertumbuhan dari spora membentuk anakan baru. Konsentrasi kinetin yang digunakan berkisar antara 0,5–2 mg/L. Sintasan spora dan pertumbuhan yang optimum diperoleh pada pemberian kinetin 1 mg/L baik pada media padat maupun pada media cair. Pemeliharaan anakan rumput laut secara in vitro dipertahankan hingga mencapai ukuran 2 cm.Genetic improvement of seaweed, G. verrucosa can be done through spore cross breeding or protoplast fusion. Seaweed spore development is very dependent on the medium and environment where the spore grows. To stimulate the development of the spore in laboratory, special treatment is needed in order to foster spore growth and survival. Kinetin treatment as a plant growth regulator can stimulate the growth of seaweed from spore to bud. Applied kinetin range was 0.5–2 mg/L. Optimum survival rate and growth of spore achieved by the addition of 1 ppm kinetin concentration both in solid and liquid media. In vitro nursery of buds was continued until the buds reached 2–3 cm in size.

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Journal Info

Abbrev

jra

Publisher

Subject

Agriculture, Biological Sciences & Forestry Environmental Science

Description

Jurnal Riset Akuakultur as source of information in the form of the results of research and scientific review (review) in the field of various aquaculture disciplines include genetics and reproduction, biotechnology, nutrition and feed, fish health and the environment, and land resources in ...