NGHIÊN CỨU ẢNH HƯỞNG CỦA MỘT SỐ BIỆN PHÁP KỸ THUẬT ĐẾN SỰ NẢY MẦM VÀ SINH TRƯỞNG CÂY GIỐNG NÁNG HOA TRẮNG (CRINUM ASIATICUM L.) TẠI THANH HÓA

Abstract

Crinum asiaticum L., family Amryllidaceae. In recent years, Crinum asiaticum L. has received attention in cultivation, providing raw materials to meet the needs of medical treatment and the pharmaceutical industry. Researched technical measures have shown effects on the germination and growth of seedlings propagated from seeds: Fresh seeds should be sown immediately without preservation because when refrigerated at a temperature of 10^oC to 13^oC the seeds lost their germinating ability. Sowing time is October 25 (CT2). fresh seeds  are sown on the subtrate (CT3) of river sand + alluvial soil at a ratio of 1 : 1 and sown at a distance (CT2) of 10 x 10 (cm). Treating  fresh seeds by soaking  GA3 (CT3) at a concentration of 15 ppm, gives the best of germination rate and shows some growth and development indicators of Crinum asiaticum L. seedlings. Pests cause severe damage from late November and December.