两个品种百香果营养成分比较分析

试验对2个不同品种的百香果(紫香1号和平塘1号)开展营养成分比较研究,结果表明,2个品种百香果中均含有人体必需的7种氨基酸,总含量以平塘1号较高;矿物质元素Ca、K含量都较高。此外,百香果中还含有丰富的维生素C和维生素E、蛋白质、膳食纤维、总糖等营养物质。总体来看,平塘1号在多个营养成分含量方面更为显著,可以作为大面积推广应用的新品种。     

不同栽培方式竹笋亚硝酸盐残留研究

对雷竹秋季覆盖、冬季覆盖和普通栽培以及毛竹林大量施肥和基本不施肥等不同栽培方式的竹笋亚硝酸盐残留量进行分析研究。结果表明,雷竹笋亚硝酸盐的残留量从高到低排列为冬季覆盖笋 > 普通栽培笋 > 秋季覆盖笋;毛竹林中低产林的鞭笋和冬笋的亚硝酸盐残留量都比高产林要多;土壤中的氮含量和土壤温度可能影响竹笋亚硝酸盐的残留量。     

MUSSEL CULTIVATION AS A CO-USE IN OFFSHORE WIND FARMS: POTENTIAL AND ECONOMIC FEASIBILITY

More than 50% of the annual worldwide harvest of mussels is produced in Europe. The mussel cultivation in Germany is based on an extensive on-bottom culture and depends entirely on natural resources for food, spat and space. Due to stakeholder conflicts and a lack of spat availability, mussel farmers tend to move offshore where space is not limited and adequate settlement guaranteed. Newcomers – the offshore wind farmers – are covering large areas in the German Bight which in contrast give the opportunity to use these areas in a multifunctional way by accepting mussel cultivation within the wind farms. This study compiles the basic data for offshore mussel cultivation in close vicinity to a designated offshore wind farm in the open sea of the German Bight and employs different case-scenario calculations to illustrate the impact of changing parameter values on overall profitability or non-profitability of this activity. Primary focus is placed on the production of consumer mussels but seed mussel cultivation is also taken into consideration. We show that production of consumer mussels with longline technology is sufficiently profitable even under the assumption of substantial cost increases. This is especially true, if existing capacities could be used. The cultivation of seed mussels depends on the possibility of using existing equipment. A substantial increase of seed mussel prices to at least 0.6 €, given the main cost categories remaining constant, turns this alternative into substantial profitability. This study concludes with providing some recommendations on how favorable terms or actions could further improve profitability of offshore mussel cultivation. Altogether, our results are intended to shed some light on business management topics that future offshore mariculture operators such as traditional mussel farmers should follow in order to be efficient.     

西番莲叶红外指纹图谱研究

[目的]研究西番莲（Passiflora dulis）叶红外指纹图谱。[方法]运用双指标序列分析法。以共有峰和变异峰率为指标,计算样品相对于该标准品的共有峰率和变异峰率,并按照共有峰率和变异峰率的大小建立不同的序列。[结果]海口、儋州、万宁、屯昌的西番莲样品红外图谱比较吻合,但也存在一定的差异。[结论]该研究为快速地把相似的西番莲样品归为一类提供了科学依据。     

关于百香果可持续性综合开发利用的思考

百香果是一类集数百种水果香气于一体,兼有食品、医药和观赏等功能的水果。通过对百香果各种功能及开发现状的介绍,全面阐述它的开发价值,评价了它的可持续发展潜力,为我国长江流域及以南地区的引种驯化和发展提供理论和技术参考,并为这一类新型水果事业发展注入动力。     

蓝靛果忍冬茎段离体培养与植株再生

以蓝靛果忍冬的幼嫩茎段为外植体,采用正交设计及方差分析对影响蓝靛果忍冬植株离体培养与植株再生的因素进行了优化研究,培育出了蓝靛果忍冬的组培苗。结果表明:初代培养的适宜培养方案是MS+6-BA1.0mg/L+IBA0.2mg/L,芽分化率达到100%;继代增殖培养的适宜培养方案是MS+6-BA0.5mg/L+IBA0.3mg/L+KT1.5mg/L,增殖系数达到8.7;生根培养的适宜培养方案是1/4MS+IBA1.5mg/L,生根率达到96.7%。生根试管苗在驯化、移栽后成活率可达97.8%。6-BA、IBA和KT配合使用,可以增加蓝靛果忍冬继代培养的丛生芽数量。该试验培育的组培苗的各项指标已达到快速繁育苗木的要求,其技术措施可直接应用于规模化生产。     

厚壁毛竹材积与地上生物量的垂直分布格局

材积和生物量不仅反映竹类植物生长状况,而且也是林分经济产量和生态功能评价的重要指标。在测量统计竹高、胸径、壁厚、含水率等指标的基础上,分析厚壁毛竹立竹材积、地上生物量的垂直分布特征。结果表明:(1)厚壁毛竹秆材含水量随着高度的增加而降低,由秆基的50%降到秆梢的30%,而秆材密度则呈上升趋势,由基部的0.6 g/cm3增加至0.8 g/cm3;(2)50%的材积和生物量集中在竹秆下部全长的1/5,90%的材积和生物量分布于中下部竹秆全长的2/3;(3)构建了厚壁毛竹竹秆实际秆壁材积、外径材积、地上各部分生物量与胸径的关系模型。研究结果为深入了解厚壁毛竹精确取材与生物量计量提供参考。     

朱砂根标准化生产技术研究

为规范朱砂根苗木生产、提高苗木的商品质量,根据多年对朱砂根生产技术的探索,对朱砂根标准化生产技术进行总结。     

湖北毛竹适宜气候区分区研究

选择16个与毛竹生长、分布有关的气候因子对湖北省76县（市）进行主成分分析,结果表明：前4个主成分的累计贡献率达83.25%.以其中的年降水量、年积温、年蒸发量、7月温度、4-10月降水量、年均温度、1月温度、纬度8个因子为主导因子,构建各样品（县市）的得分方程,绘制散点图.根据散点的群聚性,结合毛竹在湖北省的生长分布现状以及与行政区划的一致性,按照毛竹水平区划的全国标准,通过R型最短距离聚类法将湖北省分为：毛竹最适宜区Ⅰ、毛竹适宜区Ⅱ、毛竹较适宜区Ⅲ、毛竹零星分布区Ⅳ、高山毛竹引种区Ⅴ.