CAJ | 학술논문

为了科学种植菜用大黄 ,以菜用大黄种子为试验材料 ,研究不同Zn2+浓度(0、20、50、100、150、200、300、500、700 mg·L-1 )对菜用大黄种子萌发及幼苗生长的影响.结果表明 :菜用大黄种子的发芽指标随着Zn2+ 浓度的增加表现为先升高后降低的趋势.发芽势、发芽率、发芽指数都是在Zn2+ 浓度为100 mg·L-1时达到最大 ,电导率则在Zn2+浓度为100 mg·L-1时最低 ,幼苗根长、茎长和叶绿素的含量都随着Zn2+浓度的增加而逐渐降低.研究表明 ,适量的锌虽然能促进种子的萌发 ,但是幼苗的根长、茎长和叶绿素含量将受到不同程度的影响.
위료과학충식채용대황 ,이채용대황충자위시험재료 ,연구불동Zn2+농도(0、20、50、100、150、200、300、500、700 mg·L-1 )대채용대황충자맹발급유묘생장적영향.결과표명 :채용대황충자적발아지표수착Zn2+ 농도적증가표현위선승고후강저적추세.발아세、발아솔、발아지수도시재Zn2+ 농도위100 mg·L-1시체도최대 ,전도솔칙재Zn2+농도위100 mg·L-1시최저 ,유묘근장、경장화협록소적함량도수착Zn2+농도적증가이축점강저.연구표명 ,괄량적자수연능촉진충자적맹발 ,단시유묘적근장、경장화협록소함량장수도불동정도적영향.
For scientific planting of Rheum rhaponticum L .,taking seeds of Rheum rhaponticum L .as experi-mental material ,the effect of different concentrations of Zn2+ (0 ,20 ,50 ,100 ,150 ,200 ,500 and 700 mg·L-1 )on seeds germination and seedling growth of Rheum rhaponticum L .was studied .The results indicated that all of the data related to germination firstly rose and then dropped with the increasing of Zn 2+ concentration .The germination potential ,germination rate and germination index were up to the maximum value by using 100 mg·L-1 Zn2+ concentration ,while the conductivity was the lowest .Seeding root length ,stem length and chlorophyll content decreased with the concentration of Zn2+ increased .The results showed that although ap-propriate amount of Zn2+ could promote the germination of seeds ,but the seeding root length ,stem length and chlorophyll content had been inhibited to a certain degree .