Genetic diversity and genetic variation of Quercus variabilis Blume.of natural populations of Changyang were studied at the enzyme leve1.The results showed that 7 loci and 15 alleles were detected,of which 5 loci were exhibited polymorphism.Percentage of polymorphic loci(that is P) was equal to 71.4%,the average number of alleles per locus(that is A) was equal to 3.200 0,the average number of effective alleles per locus(that is AE) was equal to 1.609 0,the expected heterozygosis(that is HE)was equal to 0.356 3,and the observed heterozygosis(that is HO)was equal to 0.362 5.The genetic diversity and genetic variation of Quercus variabilis Blume.of natural populations of Changyang were high.

The improved variety is the resources of the productive forces development foundation and strategic resources,also the important material base of sustainable development,which achieved good quality and high yield,increase yield and income.The authors from promoting the healthy development of Yichang woody oil industry,discussion made on how to strengthen Yichang woody oil breeding the importance,necessity and methods.

More than one hundred-thousand acres chaenomeles sinensis (thouin) Koehe in Changyang,Yun County was tested,which developed advantages of regional resources,combined methods recommendation from the masses with field survey.Fifty-six pre-plant was explored,selected and collected from groups,Yield,quality and stress resistance were re-checked and identified last three years,the best of growth and quality set up twenty-trees in collection nursery of genetic resources.the clone comparative test was carried out in Changyang,Hefeng County and Wuhan City.On basis of observation and comparing on cultivar comparison test,florescence characteristic,growth regulation and stress resistance etc.The superior variety,that is "E,NO.one" and "E,NO.two" was selected.

According to principle of Castanea millissima Blume in stereo planting of the upper,middle,lower level,generating good ecological and economic benefits,we accepted double effect supply for each other and increased afforestation of vegetation coverage,soil nutrients,water conservation of forest eco—economic model and cultivation management,we will make full use of light and heat than single Castanea millissima Blume,or economic crops cultivation,to reach ecological and economic sustainable organic combination,and get product diversification and achieve a high output.

the fruits of Chaenomeles sinensis(Thouin) koehe is edible,medicinal.its flowers are beautiful and ornamental.The experiment on cuttage propagation of Chaenomeles sinensis(Thouin) koehe shows that one-year-old branches are superior to the rooting rate of semi-lignified shoots is significantly different.Using 1 000 mg/L of ultra-concentrated dose,the cutting in autumn is superior to spring.The best treatment for cuttage propagation in popularization and application,using one-year-old branches and 100 mg / L growth of ultra-concentrated dose in autumn.

<正>襄城县曾是"烟草王国",是个农业大县。曾几何时,人们对襄城旧县城的写照就是:"一条路两盏灯,10分钟逛县城。"如今,襄城变了。迎宾路、首山大道、泰安路、中心路、步行街、烟城路等道路宽敞,环境优美,县城城区面积由原来的9平方公里扩大到14平方公里,形