近几年宁德市花卉生产发展迅速,至2011年底,全市花卉种植面积达13719亩,年农业产值1.24亿元,年销售额9602.5万元.但宁德市花卉产业面临如何提高效益、可持续发展和环保等问题.通过对宁德市若干县区的花卉产业进行调研,分析了宁德市花卉产业发展现状及存在的问题,提出了产业发展的相应对策,为花卉产业的健康、高效、可持续发展提供科学依据.

Protection,exploitation and application of the bast-fiber resources depends on full understanding and mastery of the gene pools of quantitative genetic variation,distribution and their evolutionary relationships.Molecular marker technique is not influenced by environmental factors and can test DNA from any growth stage,thus it has become a modern scientific research tool which can make up for the shortcomings of those quite limiting traditional methods.Currently,our knowledge about genetics of bast-fiber crop is very limited,but it is important for breeding these plants.A Highly saturated genetic linkage map would provide a solid basis for quantitative trait loci(QTL) mapping,positional gene cloning,comparative genomics studies and marker-assisted selection.In this article,we′ve given a systematic description of application of the molecular marker techniques,on genetic linkage map construction,QTL mapping and marker-assisted selection of kenaf,jute,flax,ramie,hemp and sisal.

Advances in morphological observation,molecular marker,tissue culture of Dendrobium have been reviewed.Meanwhile it was pointed out the problems in development and utilization of Dendrobium,such as miscellaneous varieties involving the good and bad,decrease of natural resources,and some varieties in danger of extinction.Accordingly some suggestions to protect Dendrobium were proposed.

DUS test guide for new plant species has become an important content of agricultural technological trade measures in various countries.The situation at home and abroad for DUS test guide for new plant species in China is analyzed.Meanwhile,to integrate it with building a protection system of new plant species in China,the necessity and importance to work out a national DUS test guide are discussed,accordingly the strategy to work out DUS test guide for new plant species in China is proposed.

以铁观音、黄旦、毛蟹等9种茶树品种一年生有性系苗和扦插苗为试验材料,分别对茶树不同器官的内生细菌数量进行测定分析,结果表明:茶树的根、茎、叶中均存在大量的内生细菌,内生细菌数量在茶树不同器官中的分布规律为:侧根>主根>茎部>叶片.器官问内生细茵数量的差异达到显著水平,茶树有性系后代和无性系品种器官间内生细茵数量的变异系数分别为70.8%和31.9%.茶树有性系后代的侧根和主根的内生细菌数量多于无性系茶树品种;而无性系茶树品种的茎部和叶片内生细菌数多于茶树有性系后代.