A study on seed germination and seedling initial growth of Alpinia Zerumbet (Pers.) originating from Japan

Abstract

In natural condition, Alpinia Zerumbet (Pers.) only grows in certain areas; its seeds are difficult to germinate. This study aims to evaluate a number of factors affecting the sprouting ability of those seeds originating from Japan. Warmly dried Alpinia Zerumbet (Pers.) seeds were incubated at different temperatures and amounts of GA3, which have different germination rates. At 400C, the germination rate reached 75, 88, 87, and 86%, respectively, with concentrations of GA3 in 5, 10, 20, and 30 ppm. The germination of the seed started from the 10th day after incubation and ended on the 22nd day. The germinated seeds were sown in plastic trays with 80% of alluvial soils of the Red River + 20% of microbial fertilisers, giving a survival rate of 97%, and on average, tree’s height after 45 days was 7.6-8.1 cm.