寿宁高山乌龙茶生产概况

从寿宁乌龙茶生产历史和地理标志产品保护等方面简要概述了寿宁高山乌龙茶的生产现状,分析了寿宁高山乌龙茶产地、品种和政策等生产优势条件,提出了寿宁颗粒和条形高山乌龙茶加工工艺和品质表现。     

脂溶性茶多酚中的主要活性组分及对人卵巢癌HO-8910细胞株的体外抑制活性

利用高速逆流色谱对脂溶性茶多酚中的主要活性组分进行分离和纯化,获得了一种新的单取代的长碳链脂溶性儿茶素表没食子儿茶素-3-O-没食子酸-4'-棕榈酸酯,并对其分子结构进行了元素分析、IR、MS和1H-NMR等表征。药理学实验考察并比较了脂溶性的表没食子儿茶素-3-O-没食子酸-4'-棕榈酸酯、水溶性的绿茶多酚和脂溶性茶多酚对人卵巢癌HO-8910细胞株的体外抑制活性。结果表明,单取代的EGCG棕榈酸酯的活性比脂溶性茶多酚强,而与绿茶多酚相当。     

Developmental Genetics Analysis for Plant Height in indica Hybrid Rice Across Environments

The developmental genetics of plant height was analyzed from two groups of three-line indica hybrid rice at two environmental conditions based on the NCII design, using the additive-dominant developmental genetics models and the statistic methods. The results showed that the rice genotypes and environmental conditions could both affect plant height, and the effects of environment on plant height decreased gradually with plant development. Additive and dominant effects both governed the performance of plant height at all developmental stages. However, the degrees of effect varied among the rice genotypes. Moreover, the interaction between environments and genotypes also affected plant height. The genetic effects differed at most developmental stages. Furthermore, the expression of additive effect was more active than that of dominant effect. Conditional interaction effects with environment also influenced plant height during genetic development, especially at the early stage. Mid-parent heterosis (HMP) increased gradually with the developmental stage of plant height, and maximized at the latest stage, whereas the heterosis over the better parent (HBP) showed small differences among the genotypes, and kept stable at the later stage, with positive numeric value. At most developmental stages, conditional HMP was positively significant, while conditional HBP was negatively significant. All above results suggest that HMP and HBP have some new expressions in all developmental periods and the levels and directions are quite different.     

丽水莲都区大港头镇茶产业发展现状及对策建议

茶叶产业是丽水市莲都区大港头镇的农业主导产业,文章在分析大港头镇产业发展优势及存在问题基础上,提出构建茶叶绿色发展基地、推动茶业全产业链建设、注重茶旅融合、加大宣传推介、提升科技水平等方面对策建议,促进大港头镇茶产业转型升级,做优做强.     

新生代农民工的社会心理转变及适应性分析——以福州市晋安区为研究区域

新生代农民工与老一代农民工相比在身份、地位、待遇有一定的相似,而在务工目的、消费观念、文化水平等方面与老一代农民工迥然相异,呈现出新的特点。该文以福州晋安区为研究区域,就新生代农民工进城之后的社会心态问题展开实证性研究,归纳总结农民工出现的问题,并提出新生代农民工的心理防范和风险化解机制。     

丛枝菌根真菌群落对白三叶草植株生物量磷吸收和土壤磷酸单酯酶活性的影响

丛枝菌根真菌(AMF)在土壤与植物的磷素循环中发挥着关键的作用。采用盆栽实验研究了丛枝菌根真菌群落对白三叶草植株生物量、磷吸收和土壤磷酸单酯酶活性的影响。结果表明,接种不同AMF群落均能显著地促进白三叶草植株的生长及其对磷素的吸收,提高根际土壤磷酸单酯酶的活性。Mnp处理中,白三叶草生物量最大,白三叶草总生物量、茎叶生物量和根系生物量分别比对照处理(-M)提高64.48%、61.48%和84.91%。不同菌根处理中,Mck处理显著地提高白三叶草磷吸收和土壤磷酸单酯酶活性,白三叶草磷吸收总量和茎叶磷吸收量分别比对照(-M)提高107.18%和91.91%,土壤碱性磷酸单酯酶和酸性磷酸单酯酶活性相对对照(-M)分别提高54.33%和138.43%。碱性磷酸单酯酶活性与AMF群落中的Acaullospora属孢子数呈显著的正相关关系,而酸性磷酸单酯酶活性则主要受Paraglomus属孢子数的影响。说明接种AMF群落可显著地影响土壤的磷酸单酯酶活性,从而影响白三叶草的生长及其对磷素的吸收。     

葡萄抗真菌性病害的机理研究现状

真菌性病害是影响葡萄产量与品质的重要因素之—.文章从葡萄植物学特性和生物化学物质两方面综述了葡萄植株对真菌性病害的抗病机理与研究现状,阐述了葡萄表皮、绒毛、气孔结构、果皮结构等植物学特征与植物抗毒紊、单宁、相关防御酶等生物化学物质与抗真菌性病害的关系,为葡萄的抗性育种及优质高效栽培等提供理论依据.     

黄瓜新品种“明研5号”的选育及其特征特性

“明研5号”系三明市农业科学研究所以“沙县本地黄瓜”稳定自交系为母本,以“台湾耐热王”稳定自交系为父本进行杂交选育而成的黄瓜新品种.该品种具植株生长势强,分枝性中等,瓜条直,长棒形,瓜色深绿均匀,黑密刺,瘤状粗,果肉翠绿色,肉质甜脆;栽培产量高,商品性好,可春、秋季节栽培等优点.2007～2010年的小区产量鉴定试验、...     

猪链球菌病的鉴定及中草药体外抑菌试验

猪链球菌病是猪的一种常见传染病。采集了疑似猪链球菌感染致死猪的脾和肝样本,对猪链球菌病进行了病原分离、微生物学检查及中草药体外抑菌试验。结果表明,黄连醇提物的抗菌活性最强;仙鹤草、地锦草醇提物抗菌活性较强;金银花醇提物抗菌活性较弱。