14种切花月季抗寒性比较与评价
2018-06-07刘峰李豪王安付紫阳肖立展张桂玲温四民
刘峰 李豪 王安 付紫阳 肖立展 张桂玲 温四民



摘要:以14种切花月季品种为供试材料,研究其耐低温胁迫性,以期为切花月季冬季生产和耐寒品种选育提供依据。5、0、-5、-10 ℃的低温条件下处理一年生扦插苗,测定其丙二醛(MDA)含量、可溶性糖含量、可溶性蛋白质含量、脯氨酸含量、过氧化物酶(POD)活性和超氧化物歧化酶(SOD)活性,在此基础上,使用隶属函数法计算隶属函数值,并根据综合隶属函数值进行系统聚类分析。结果表明,14种切花月季品种抗寒性差异较明显,抗寒性为影星>坦尼克>蓝月>梅朗口红>卡罗拉>肯尼迪>蓝色香水>还珠>莱茵黄金>金凤凰>白圣诞>金奖章>红衣主教>戴安娜。通过系统聚类将其分为3个等级:影星抗寒性较强,金奖章、红衣主教和戴安娜抗寒性较弱,其他10个品种抗寒性中等。
关键词:切花月季;抗寒性;生理指标;隶属函数法
中图分类号:S685.12 文献标识码:A 文章编号:0439-8114(2018)07-0075-05
DOI:10.14088/j.cnki.issn0439-8114.2018.07.017
Comparison and Evaluation on Cold-tolerance of Fourteen Cut Rose Cultivars
LIU Fenga,LI Haoa,WANG Ana,FU Zi-yanga,XIAO Li-zhanb,ZHANG Gui-linga,WEN Si-minc
(a.College of Agricultural and Forestry Science; b.College of Life Sciences;c.Asset Management Office,Linyi University,
Linyi 276000,Shandong,China)
Abstract: Low temperature stress resistance of 14 cut rose cultivars were studied to provide references for cultivation and cold tolerance breeding in winter. The MDA content,soluble sugar content,soluble protein content,proline content,POD activity and SOD activity of annual cuttings were measured at low temperature of 5,0,-5,-10 ℃,on this basis,the membership function method was used to calculate the membership function value,and the system clustering analysis was carried out according to the value of the comprehensive membership function. The results showed that the difference of cold resistance of cut rose cultivars was obviously,the cold tolerance ability from high to low were followed by Movie Star,Tineke,Blue Moon,Rouge Meilland,Carola,John F. Kennedy,Blue Parfum,Huan zhu, Pfalzer Gold,Golden Scepter,White Christmas,Gold Medal,Kardinal and Diana. Using cluster analysis,14 cultivars were divided into three grades:low temperature tolerance of Movie star was the strongest,those of Gold Medal,Kardinal and Diana were the weakest,and the other 10 varieties were medium.
Key words: cut rose; low temperature tolerance; physiological index; membership function
切花月季(Rosa cvs)為蔷薇科蔷薇属有刺灌木,是现代月季中适宜作切花栽培的一些品种的总称。其切花消费占切花消费总量的五分之一左右[1],中国从20世纪80年代就开始大规模生产切花月季,种植面积和产量不断增大[2]。切花月季生产中温度是影响其生长发育最重要的因子之一,白天24~26 ℃,夜间16~18 ℃是其最适温度,温度低于5 ℃则进入休眠[3]。临沂切花月季生产近年发展迅猛,但冬季低温易造成较大损失[4]。研究表明,低温胁迫对植物的影响显著大于其他环境胁迫因素[5,6],植物为了抵抗低温胁迫其体内会发生复杂的生理生化反应,可溶性蛋白质、可溶性糖和脯氨酸的含量,以及细胞酶活性等会随之发生改变,从而影响植物体内的正常代谢[7-9]。本研究通过对14种切花月季……
