Effects of Different Sowing Treatments on Germination and Growths of Aegiceras corniculatum Hypocotyls
In order to select better treatments for Aegiceras corniculatum hypocotyl germination,three different sowing treatments were set including seed coat(removed or not removed),sowing angle(horizontal or vertical)and soaking(0,24,48,72 and 96 h).Effects of different treatments on germination and growths of A.cornicula-tum hypocotyls were analyzed.Results showed that soaking treatments increased germination rates of hypocot-yls with seed coats significantly,and decreased germination rates of hypocotyls without seed coats in most cas-es.Under treatments of vertical sowing with seed coats,germination rates of different soaking time were better than those in horizontal sowing with seed coats except for soaking 48 h.Effects of three treatments on growths after hypocotyl germination were relatively independent by three-factor analysis of variance,and seed coat and sowing angle treatments mainly affected growths of leaves and roots.Membership function analysis showed that better treatment was soaking seed for 96 h and horizontal sowing when seed coats were retained with better ger-mination and growths of A.corniculatum hypocotyls,and better treatment was without soaking and vertical sow-ing when seed coats were removed.
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