ZHOU Xiao-hui,WANG Wei,DAI Bin,et al.Determination of Wilting Coefficient of Gazania regins L.Under Natural Drought Stress[J].Northern Horticulture,2013,37(09):67-69.
自然干旱胁迫下盆栽勋章菊萎蔫系数测定
- Title:
- Determination of Wilting Coefficient of Gazania regins L.Under Natural Drought Stress
- 文章编号:
- 1001-0009（2013）09-0067-03
- Keywords:
- transpiration rate; Gazanian regins L.; wilting coefficient
- 分类号:
- S 681.9
- 文献标志码:
- A
- 摘要:
- 以从国外引进的勋章菊品种“日出”和“星白”为试材，研究了自然干旱胁迫下2个勋章菊品种的蒸腾速率日变化、耗水量、存活天数及萎蔫系数。结果表明：在温度为32~35℃、紫外线照射强度为8级的条件下，胁迫第4天“日出”已死亡，而“星白”在干旱胁迫第5天出现死亡。二者的萎蔫系数分别为17.80%和14.80%。表明“星白”勋章菊有较强的抗旱性，为勋章菊在夏季景观应用中降低成本养护、节约水资源提供了参考。
- Abstract:
- Taking the varieties of Gazanian regins L.‘Richu’ and ‘Xingbai’ that introduced from foreign as experiment materials，the transpiration rates，water consumption，survival days under natural drought stress and wilting coefficient were determined.The results showed that under the conditions of a temperature of 32~35℃,and 8 ultraviolet irradiation intensity,‘Richu’ died at the fourth day of drought stress，while ‘Xingbai’ died at the fifth day of natural drought treatment.The wilting coefficients of the two varieties were 17.80% and 14.80% respectively.It indicated that ‘Xingbai’ had a better resistance than ‘Richu’，which provided a reference to reduce maintenance cost and water consumption of Gazanian regins L.used in summer landscaping.
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备注/Memo
第一作者简介：周晓慧（1988-），女，在读硕士，研究方向为园林植物栽培与生理。E-mail：zxhsjzgc@163.com.