Abstract
The experiment was carried out to study the relationship between pollen germination of several cultivas and agar concentration of the media. In this experiment, pollen of Impatiens balsamina L., Petunia hybrida Hort., Cosmos bipinnatus Cav., Helianthus tuberosus L., Brassica oleracea var. acephala L., Brassica cernua Coss. and Brassica pekin.en.sis Rupr. were used as materials. The agar concentration of the media was plotted 0.5, 1.0, 2.0, 3.0, 4.0, 5.0% and other chemicals were not added in media. The results were as follows : The most suitable concentration of agar media differed: according to pollen of each cultiva. The best germination ratio was observed on 3% agar medium in Impatiens balsamina L., on 2% in Petunia hybrida Hort., on 5% in Cosmos bipinnatus Cav. and on 1% in Brassica oleracea var. acephala L. The germination ratio of Cosmos pollen was better in the high concentration of agar medium than the low concentration of it. So, in the case of the pollen of Cosmos, slide glass was used for pollen germination bed instead of agar medilJ.m. The germination ratio, was better on slide glass than on the agar medium.
