摘要
为促进鸢尾的大量繁殖及栽培,以不同浓度GA3(50,100和150 mg·kg^(-1))和温水作为对照,探索了自制柳枝浸出液不同处理时间(12和24 h)对鸢尾种子的发芽率、发芽势及幼苗的苗高、根系生长状况的影响。结果表明:柳枝浸出液处理鸢尾种子12和24 h均能够有效提高发芽率,最终的发芽率均高达97.00%,比150 mg·kg^(-1)GA3浸泡12 h处理高2.11%。对比不同处理时间,柳枝浸出液处理24 h的发芽势较12 h处理高19.30%。柳枝浸出液浸泡处理较不同赤霉素处理的鸢尾种子萌发期早1.0 d左右。柳枝浸出液处理对幼苗的生长发育有明显的促进作用,幼苗苗高和根系长度明显大于温水处理,其促进作用的功效接近于50 mg·kg^(-1)GA3处理24 h的效果。
In order to promote the mass reproduction and cultivation of Iris tectorum,with different concentrations of GA3(50,100 and 150 mg·kg^(-1))and warm water as control,the effects of self-made willow branch lixivium for different treatment time(12 and 24 h)on the germination rate,germination potential,seedling height and root growth of iris were studied.The results showed that:the germination rate of seeds treated by willow branch lixivium for 12 and 24 hours could be effectively improved,with the germination rate 97.00%,which was 2.11%higher than that of 150 mg·kg^(-1) GA3 soaking for 12 hours.Compared with different treatments′time,germination potential of willow branch lixivium for 24 hours was 19.30%higher than that of 12 hours treatment.The germination time of seeds soaked in willow branch lixivium was about 1.0 d earlier than that of the treatments by gibberellin solution.The growth and development of seedlings from the seeds treated by the willow branch lixivium was significantly promoted,whose seedling height and root length were significantly higher than those of seedlings from the seeds treated by warm water,which almost had the equal promotion effect on seedlings from the seeds treated by 50 mg·kg^(-1) GA3 for 24 hours.
作者
童丽丽
许晓岗
葛元
于雪娇
TONG Li-li;XU Xiao-gang;GE Yuan;YU Xue-jiao(Horticulture & Landscape Architecture School,Jinling Institute of Technology,Nanjing 210038,China;Biology & Environment College,Nanjing Forestry University,Nanjing 210037,China;College of Resources and Environment,Anhui Agricultural University,Hefei 230036,China)
出处
《黑龙江农业科学》
2021年第10期78-83,共6页
Heilongjiang Agricultural Sciences
基金
江苏省林业科技创新与推广项目(LYKJ[2018]13)。
关键词
柳枝浸出液
鸢尾
赤霉素
发芽率
willow branch lixivium
Iris tectorum
gibberellin solution
germination rate
