鄂西红豆古树、初果树种子不同水温处理发芽对比试验  

Comparison Experiments of Germination for Seeds of Ancient Trees and Young Growing Period of Ormosia hosiei in Western Hubei Province under Different Temperature Treatments

作　　者：谢世波 

机构地区：[1]福建省周宁县林业局,福建宁德355400

出　　处：《防护林科技》2016年第8期53-54,68,共3页Protection Forest Science and Technology

摘　　要：以鄂西红豆古树和初果树种子为材料,采用不同温度热水分别对两批种子进行浸种处理,再在圃地上进行播种发芽试验。结果表明:古树批种子发芽率高低的顺序为始温90℃热水浸种24h>始温80℃热水浸种24h>始温70℃热水浸种24h>始温60℃热水浸种24h;初果树批种子发芽率高低的顺序为始温80℃热水浸种24h>始温70℃热水浸种24h>始温90℃热水浸种24h>始温60℃热水浸种24h。古树批种子用始温90℃热水浸种24h处理方法发芽率最高,达84%;初果树批种子用始温80℃热水浸种24h处理方法发芽率最高,达85%。相同方法处理的种子(除始温90℃热水浸种24h外),初果树批种子比古树批种子的发芽率高。用90℃高温热水浸种处理,会造成初果树种子烫伤,严重影响发芽率,而古树种子不受影响。Taking ancient trees and young growing period of Ormosia hosiei in western Wuhan City as materials,two batch of seeds were soaked by adopting hot water at different temperatures,seed-sowing experiments were conducted in the nursery.Result shows that the descending order of seed germination of the batch of ancient trees is seeds soaked in 90 ℃ hot water（starting temperature）with 24h 〉seeds soaked in 80 ℃ hot water（starting temperature）with 24h 〉seeds soaked in 70 ℃ hot water（starting temperature）with 24h〉seeds soaked in 60 ℃ hot water（starting temperature）with 24h;the germination rate of seeds（batch of young grouing period）soaked in 90℃ hot water（starting temperature）soaked with 24 his the highest,being 84%;the germination rate of seeds（batch of young growing period）soaked in 80 ℃ hot water（starting temperature）soaked with 24 his the highest,being 85%.Germination rate of seeds（batch of young growing period）is higher than that of the seeds（batch of ancient trees）under the same treatment,except 90℃（starting temperature）soaked in hot water with 24 h.Soaking seeds in the hot water（90 ℃）can burn the seeds of young growing period,seriously affecting the germination rate and the seeds of ancient trees are not affected.

关 键 词：鄂西红豆 古树 初果树 种子处理 发芽对比 

分 类 号：Q949.751.9[生物学—植物学]