摘要
为提高岩报春植物在北京地区夏季的耐热性,从5月30日开始,分别向其待测植株叶表面喷施CaCl2溶液,每隔3 d喷施1次,浓度梯度为5、10、20 mmol/L。每隔15 d测定1次岩报春植株的形态指标和生理指标,试验进行到8月30日。结果表明:低浓度CaCl2溶液(5 mmol/L)施用比高浓度CaCl2溶液(10、20 mmol/L)施用更能增强岩报春植株耐热性,使其能在北京温室顺利越夏。
From May the 30th, Primula sa:ratilis were dealt with foliar sprayed with 5,10,20 mmol/L CaCl2 solution every 3 days for 3 months. Primula sazcatilis were gauged with morphological indexes and physiological indexes every a half months. Results showed that Ca^2+ 5 mmol/L could improve the tolerance of Primula sa:catilis to heat stress in some extent. Be dealt with the 5mmol/L CaCl2 solution, Primula saxatilis could be cultivated in greenhouse of Beijing during summer more easily.
出处
《北方园艺》
CAS
北大核心
2010年第9期67-70,共4页
Northern Horticulture
基金
国家林业局948重大资助项目(2006-4-C08)
"十一五"国家科技支撑计划资助项目(2006BAD01A18)
关键词
岩报春
CA2+
越夏栽培
形态指标
生理指标
Primula saxatilis
Ca^2+
cultivating during summer
morphological indexes
physiological indexes