赤霉素对野火球种子萌发的影响
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摘要
为了探究不同浓度赤霉素溶液的处理对野火球种子萌发的影响,测定了不同赤霉素浓度对野火球种子发芽率、发芽势、发芽指数、胚根长度、胚芽长度以及出苗率的影响。研究结果为:不同浓度的赤霉素处理对野火球种子萌发的影响不同,从总体上看野火球种子的发芽率、发芽势、发芽指数、胚根长度、胚芽长度及出苗率随着赤霉素浓度的增高呈现先上升后下降的趋势。当赤霉素浓度达到300mg/L时野火球种子的各项平均指标达到最高,与对照相比,发芽率、发芽势、发芽指数、胚根长度、胚芽长度及出苗率分别提高了45.9%、73.3%、90.9%、110.8%、300.0%和53.8%;但当赤霉素溶液浓度高于500mg/L时,野火球种子的各项指标则低于对照,说明赤霉素溶液处理对野火球种子有一个最适浓度,超过此浓度,野火球种子的发芽会受到抑制。
In order to investigate the effects of different concentrations of gibberellin solutions on the germination of Trifolium lupinaster seeds,the effects of different gibberellin concentration on germination rate,germination vigor,germination index,radicle length,embryo length and germination rate of Trifolium lupinaster were measured.The results showed that different concentrations of gibberellin had different effects on seed germination of Trifolium lupinaster.The germination rate,germination potential,germination index,radicle length,germ length and emergence rate of Trifolium lupinaster were increased first and then decreased with the increase of gibberellin concentration.When the gibberellin concentration reached 300 mg/L,the average index of Trifolium lupinaster seeds reached the highest.Compared with CK,the germination rate,germination potential,germination index,radicle length and plumule length and germination rate were increased by 45.9%,73.3%,90.9%,110.8%,300.0% and 53.8% respectively.However,when the concentration of gibberellin solution was higher than 500 mg/L,the index of Trifolium lupinaster was lower than that of the control,which indicated that gibberellin solution had an optimum concentration for Trifolium lupinaster,and beyond this concentration,germination will be inhibited.
In order to investigate the effects of different concentrations of gibberellin solutions on the germination of Trifolium lupinaster seeds,the effects of different gibberellin concentration on germination rate,germination vigor,germination index,radicle length,embryo length and germination rate of Trifolium lupinaster were measured.The results showed that different concentrations of gibberellin had different effects on seed germination of Trifolium lupinaster.The germination rate,germination potential,germination index,radicle length,germ length and emergence rate of Trifolium lupinaster were increased first and then decreased with the increase of gibberellin concentration.When the gibberellin concentration reached 300 mg/L,the average index of Trifolium lupinaster seeds reached the highest.Compared with CK,the germination rate,germination potential,germination index,radicle length and plumule length and germination rate were increased by 45.9%,73.3%,90.9%,110.8%,300.0% and 53.8% respectively.However,when the concentration of gibberellin solution was higher than 500 mg/L,the index of Trifolium lupinaster was lower than that of the control,which indicated that gibberellin solution had an optimum concentration for Trifolium lupinaster,and beyond this concentration,germination will be inhibited.
引文
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[15]朱艳芳,向先斌,熊莉军,等.温度、光照和GA3对黑种草(Nigella damascena L.)种子萌发的影响[J].种子,2017,36(2):12-15.
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[17]林松明.激素与低温处理对凤丹种子萌发及幼苗生长的影响[D].南京:南京农业大学,2007.
[2]张艳,袁涛.野生草本花卉种子萌发特性研究进展[J].中国农学通报,2017,33(3):67-73.
[3]卓露.鸢尾属植物种子的休眠特性及打破休眠的方法研究进展[J].种子,2014,33(1):53-57.
[4]贺军民,李发荣,佘小平,等.光、赤霉素和乙烯利对贯叶连翘种子萌发的影响[J].中草药,2002,33(9):840-843.
[5]高春智.不同浓度赤霉素浸种对樟子松种子萌发的影响[J].内蒙古农大学报,2012,33(3):67-72.
[6]李秋.植物生长调节剂对罗勒种子发芽及幼苗生长的影响[J].中国农学通报,2011,27(8)74-78.
[7]闫敏.生长调节剂对白三叶种子产量及产量构成要素的影响[J].草业科学,2007,24(4):59-62.
[8]孟淑春.赤霉素处理促进不同品种茄子种子萌发的比较研究[J].北方园艺,2015,1(23):33-35.
[9]青梅,俞腾飞,徐为峰,等.不同产地乌拉尔甘草种子发芽率及出苗率的测定[J].内蒙古农业大学学报:自然科学版,2014(3):53-56.
[10]杨国日.NaCl胁迫对3种草地早熟禾种子萌发特性的影响[J].防护林科技,2015(4):33-34.
[11]于诞球,杨谦.赤霉素处理对西瓜种子发芽率的影响[J].安徽农业科学,2013,41(6)2422,2428.
[12]胡芳林.超声波和赤霉素对两种藏茵陈种子萌发能力的促进作用[J].青海大学学报,2013,31(2):6-8.
[13]胥学峰.赤霉素对黄芩种子发芽率及出苗率的影响[J].特产研究,2007,29(3):35-38.
[14]尼珍.不同浓度赤霉素处理对黄波罗花种子发芽的影响[J].西藏科技,2011,25(9):64-65.
[15]朱艳芳,向先斌,熊莉军,等.温度、光照和GA3对黑种草(Nigella damascena L.)种子萌发的影响[J].种子,2017,36(2):12-15.
[16]李建海.赤霉素处理对暴马丁香种子萌发的影响[J].河北林业科技,2015,12(6):1-8.
[17]林松明.激素与低温处理对凤丹种子萌发及幼苗生长的影响[D].南京:南京农业大学,2007.