[1]宋常美,王继玥,赵青青,等.四种外源物质对干旱胁迫下火龙果种子萌发及幼苗生长的影响[J].北方园艺,2019,43(15):44-49.[doi:10.11937/bfyy.20182658]
　SONG Changmei,WANG Jiyue,ZHAO Qingqing,et al.Effect of Four Kinds of Exogenous Substances on Seed Germination and Seedling Growth of Hylocereus undatus Under Drought Stress[J].Northern Horticulture,2019,43(15):44-49.[doi:10.11937/bfyy.20182658]
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四种外源物质对干旱胁迫下火龙果种子萌发及幼苗生长的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 43卷 期数: 2019年15 页码: 44-49 栏目: 出版日期: 2019-08-15
Title:
Effect of Four Kinds of Exogenous Substances on Seed Germination and Seedling Growth of Hylocereus undatus Under Drought Stress
作者:
宋常美1; 王继玥1; 赵青青1; 余磊2
（1.贵阳学院 生物与环境工程学院，贵州 贵阳 550003；2.贵阳学院 实验中心，贵州 贵阳 550003）
Author(s):
SONG Changmei1; WANG Jiyue1; ZHAO Qingqing1; YU Lei2
(1.Biological and Environmental Engineering College，Guiyang University，Guiyang，Guizhou 550003；2.Experimental Center，Guiyang University，Guiyang，Guizhou 550003)
关键词:
火龙果; 干旱胁迫; 外源物质; 种子; 幼苗
Keywords:
Hylocereus undatus; drought stress; exogenous substances; seed; seedling
DOI:
10.11937/bfyy.20182658
文献标志码:
A
摘要:
以“新红龙”火龙果（Hylocereus undatus）种子为试材，通过模拟干旱胁迫方法探索不同浓度GB、SNP、ALA和Spd对12%PEG-6000干旱胁迫种子萌发和幼苗生长的影响。结果表明：0.5 mmol?L-1 GB、0.05 mmol?L-1Spd、8 mg?L-1 ALA和0.05 mmol?L-1 SNP能有效缓解种子的干旱胁迫，相应的发芽率、发芽势和发芽指数分别为100.00%，96.00%和74.81、99.00%，75.33%和65.91、100.00%，90.00%和75.89、97.33%，85.33%和85.33。同时，4种外源物质均利于火龙果胚根和胚轴的生长，但对叶片的影响较小。
Abstract:
Seeds of Hylocereus undatus were used as materials to explore the effect of different concentrations of GB,SNP,ALA and Spd on seeds germination and seedling growth by using 12% PEG-6000 to simulate the drought stress conditions.The results showed that 0.5 mmol?L-1 GB， 0.05 mmol?L-1Spd，8 mg?L-1 ALA and 0.05 mmol?L-1 SNP were effective at reducing the drought stress on seeds.The germination rate，germination potential and germination index of GB were 100.00%，96.00% and 74.81，Spd were 99.00%，75.33% and 65.91，ALA were 100.00%，90.00% and 75.89，SNP were 97.33%，85.33% and 85.33.At the same time，four kinds of exogenous substances were beneficial to the growth of radicle and hypocotyl，but had less influence on leaves.

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备注/Memo

第一作者简介：宋常美（1981-），女，博士，副教授，研究方向为果树生理生化及分子生物学。E-mail:gzgyscm@126.com.基金项目：贵阳市科技局贵阳学院专项资金资助项目（GYU-KYZ[2019—2020]SH-12）；贵州省教育厅大学生创新创业训练计划资助项目（201710976052）；贵州省生态环境中优势农产品残留农药降解关键技术研究重点实验室资助项目（黔教合KY字[2018]005）。收稿日期：2018-12-24

更新日期/Last Update: 2019-08-15