切花菊光反应周期的量化评价与变异分析  

Quantitative evaluation and variation analysis of photoreaction cycle of cut chrysanthemum

作　　者：袁储聪 蒋甲福[1] 苏江硕 邓波[1] 张飞[1] 管志勇[1] 房伟民[1] 陈发棣[1] YUAN Chu-cong;JIANG Jia-fu;SU Jiang-shuo;DENG Bo;ZHANG Fei;GUAN Zhi-yong;FANG Wei-min;CHEN Fa-di(State Key Laboratory of Crop Genetics and Germplasm Enhancement/Key Laboratory of Landscaping,Ministry of Agriculture and Rural Affairs/Key Laboratory of Biology of Ornamental Plants in East China,National Forestry and Grassland Administration/College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China)

机构地区：[1]作物遗传与种质创新国家重点实验室/农业农村部景观农业重点实验室/华东地区花卉生物学国家林业和草原局重点实验室/南京农业大学园艺学院,江苏南京210095

出　　处：《江苏农业学报》2023年第2期525-529,共5页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省农业科技自主创新基金项目[CX(21)2004];国家大宗蔬菜产业技术体系项目(CARS-23-A18);花卉产业技术体系建设项目[JATS(2021)454];江苏省种业振兴揭榜挂帅项目[JBGS(2021)020]。

摘　　要：本研究以229份切花菊品种为试验材料,分别种植于南京、淮安2地,其中南京、淮安2地相同品种70个,在栽培过程中进行光周期调控处理,统计各品种从短日照处理开始至现蕾期、露色期所需天数及光反应周期。发现在品种资源群体中,光反应周期存在丰富的变异,南京种植各品种光反应周期的总体变异系数为14.41%,淮安种植各品种光反应周期的总体变异系数为12.47%。在南京、淮安2个地区中,切花小菊品种的光反应周期、开始遮光处理至现蕾期时间、开始遮光处理至露色期时间这3个性状的变异幅度都比大菊品种大,其中切花小菊开始遮光处理至现蕾期时间变异系数最大,在南京、淮安2地分别为22.38%和20.08%。光反应周期与株高、叶片数呈极显著正相关。调查发现,光反应周期短的品种有QD3-109、松月等,为55 d左右;光反应周期长的品种有南农小草莓、莱克斯等,为90 d左右。The 229 representative cut chrysanthemum varieties were selected and planted in Nanjing and Huai’an,and photoperiod regulation was carried out during the cultivation process.There were 70 same varieties in two environments.We investigated the number of days from the beginning of short daylight treatment to budding period and color developing date,and photoreaction cycle of each variety.It was found that there were abundant variations in the photoreaction cycle among the cultivar resource groups.The variation coefficient of cultivars grown in Nanjing was 14.41%,and the variation coefficient of cultivars grown in Huai’an was 12.47%.In the two regions,the variation range of the three traits(photoreaction cycle,the time from the beginning of short daylight treatment to budding period,the time from the beginning of short daylight treatment to color developing date)of the spray cut chrysanthemum was larger than that of the disbud cut chrysanthemum,and the variation coefficient of the time from the beginning of short daylight treatment to budding period of spray cut chrysanthemum was the largest,which was 22.38%and 20.08%in the two regions,respectively.There was a very significant positive correlation between the photoreaction cycle and the plant height and the number of leaves.The survey found that the cultivars with short photoreaction period included QD3-109,Songyue,the photoreaction period was about 55 d.The cultivars with long photoreaction period included Nannong Xiaocaomei,Laikesi,the photoreaction period was about 90 d.

关 键 词：切花菊 品种资源 光反应周期 

分 类 号：S682.11[农业科学—观赏园艺]