Online ISSN: 1884-4111 Print ISSN: 0033-8303
Radioisotopes 66(5): 171-179 (2017)


Preparation of Oligoalginate Immobilized Hydrogel by Radiation and Its Application for Hydroponic Culture

Biotechnology Center of Ho Chi Minh City ◇ 2374 Highway 1, Trung My Tay Ward, District 12, Ho Chi Minh City

受付日:2016年8月25日Received: August 25, 2016
発行日:2017年5月15日Published: May 15, 2017

The nutrient immobilized hydrogel was prepared by γ-irradiation of carboxylmethyl cellulose (CMC) and polyacrylamide (PAM) supplemented with nutrient and oligoalginate. The gel fraction of prepared hydrogel was increased with increase of irradiation dose, while the swelling degree was decreased. The hydrogel prepared with 20% CMC, 20% PAM, 1% oligoalginate and nutrient at 15 kGy irradiation was the best for the growth of plant. The oligoalginate immobilized hydrogel promoted the germination of seeds and growth of seedling plants. In hydroponic cultivation, the growth and development of plants on oligoalginate immobilized hydrogel were much better than that of plants growing on coir dust. The nutrient and oligoalginate immobilized hydrogel showed a promising application for hydroponics as a new technique for production of safety vegetables with high yield and quality.

Key words: oligoalginate; carboxylmethyl cellulose; hydroponics; γ-ray irradiation; nutrient immobilized hydrogel

This page was created on 2017-03-22T15:57:15.708+09:00
This page was last modified on 2017-05-01T15:59:26.986+09:00