淳化县泥河沟流域果林发展与综合效益遥感动态研究

利用不同时期遥感信息资源、结合实地调查测绘，编制不同时期果林类型图，经过叠合比较，建立动态分类系统，获得果林类型动态图，以此分析淳化县泥河沟流域１９８６￣１９９５年果林面积的动态变化与综合效益。     

银杏产量与气象因子相关性研究

以湖南省１３年的气象资料，按银杏果生长发育周期，分５个阶段统计了水、光、热诸方面的８个气象因子，采用多元逐步回归方法，筛选出传粉受精期平均最大风速、种实第二增长高峰期的最低气温和５月１日～６月３０日的总雨量３个对产量有重要影响的气象因子。相应时期较大的风速，较低的气温、充沛的雨量，可提高银杏产量。     

Explaining variation in Brazil nut fruit production

Brazil nut is widely recognized as the cornerstone of the Amazonian extractive economy. Tight linkages between Brazil nut production, regional income, and intact mature forests have thrust this species into focus as a key component of Amazonian conservation and income generation strategies. Nonetheless, a comprehensive synthesis of factors explaining Brazil nut fruit production variation is lacking. We aimed to address this knowledge gap, asking: (1) What are the rates and annual variation of Bertholletia excelsa fruit production at individual and population levels? (2) What factors explain B. excelsa production variation, focusing on spatial and temporal variables, diameter at breast height (dbh), crown attributes, liana loads, and soil attributes? and (3) Does liana cutting affect fruit production?     

东北核桃楸果仁营养强化型酸奶的研制

将东北核桃楸果仁经去皮、磨浆后,与牛奶混合,将干酪乳杆菌和嗜热链球茵以1：l混合作为发酵剂进行乳酸发酵,用L9（3^4）正交试验得出山核桃楸果仁酸奶的最佳配方：固液比1：6,浆奶比2：8,过80目筛。研制产品集山核桃、鲜奶及益生菌多种营养物质于一体、口感酸甜、带有核桃清香口味的乳制品,是一种具有较好的经济价值和市场开发潜力的功能性食品。     

平欧杂种榛果实经济性状与综合评价

为了对优良品种的选育提供科学依据,以进入盛果期的不同品系平欧杂种榛果实为研究对象,采用方差分析、相关性分析、聚类分析和主成分分析对果实经济性状进行统计分析。结果表明:供试平欧杂种榛的坚果质量2.10~3.90 g,坚果三径均值16.80~22.39 mm,果仁质量0.85~1.50 g,果壳厚度1.38~2.17 mm,果腔系数0.60~0.89,出仁率25.05%~45.32%;供试平欧杂种榛品系坚果性状、果仁性状和出仁性状之间均存在显著差异,变异系数7.60%~35.49%;在品种选育时,坚果、果仁的质量和整齐度选择空间最大,坚果形状指数和三径均值以及果仁三径均值的选择余地最小,各经济性状间存在不同程度的相关性,通过聚类分析,将供试平欧杂种榛划分为3类;影响平欧杂种榛果实经济性状的主要指标为出仁率、果腔系数、果仁质量、果仁形状指数和壳厚。根据经济性状的综合得分值,筛选出84-41、83-33、B-21、B-3和84-310等品系的坚果综合经济性状较优。     

Identification of RAPD markers linked to nut weight and plant stature in cashew

Cashew is an important edible nut crop of tropics. Bulk segregant analysis (BSA) was carried out on DNA bulks constituted from F₂ population and germplasm in order to link or associate molecular markers with economic characters. In all 458 RAPD, 31 ISSR and 21 pairs of SSR primers were used and identified polymorphic markers between parents. Though screening F₂ bulks with these markers identified markers polymorphic between the bulks but none could be validated with the individuals of their bulks. Hence screening with germplasm bulks was carried out and could identify four RAPD markers polymorphic between the bulks for nut weight and plant stature and also between the individuals of their bulks. Of the four, three markers were associated with nut weight amplifying at 775, 475, 275, bp region in primers OPN 14, UBC 184 and UBC 185 respectively. Out of these three, two markers were specific to low nut weight and one marker was specific to high nut weight and their bands were present in greater frequency (50–77.8% and 75%) of individuals constituting the respective bulks. Similarly, the another marker UBC 185₂₇₅ was detected which was specific to low plant stature and was present in 66.7% and 10% individuals constituting short and tall bulks respectively. Markers identified with bulks and with the individuals of bulks were validated further with more individuals of F₂ and germplasm.     

核桃种质资源果实性状的遗传多样性分析

[目的]研究核桃果实性状遗传多样性。[方法]以53份山东省果树研究所国家核桃种质资源圃的核桃坚果为研究对象,测定横径、纵径、侧径、干果重、仁重、出仁率、壳厚等主要数量性状。[结果]53个核桃家系坚果重为7.95320.719 g,果仁重为4.854 9.866 g,出仁率为39.15%71.57%,横径为27.72539.463 mm,纵径为31.83548.223 mm,侧径为31.15741.435 mm,壳厚为0.5641.794 mm。其中,果仁重、干果重、壳厚具有相对较高的变异系数,分别为14.19%、18.51%、22.13%。[结论]调查的核桃资源遗传多样性丰富,果仁重、单果重和壳厚可作为核桃良种选育的重要参考指标。     

试论提升临安山核桃产业竞争力的途径

针对我国加入WTO后临安山核桃产业发展现状,分析了存在的问题,提出了提升临安山核桃产业竞争力的6条途径.     

湖南丘岗地板栗开发模式研究

对湖南丘岗地板栗栽培模式进行了６年研究，结果表明：最适栽培品种是铁粒头，九家种和石丰可作授粉树配置；适宜的树形为延迟开心形和主干疏层形．整地方式和栽植密度以等高撩壕和３ｍ×４ｍ为宜；绿豆等豆类作物是板栗幼林间种作物的最佳选择。还对丘岗地板栗大面积开发的综合效益进行了评价。     

板栗品种重要经济性状遗传多样性研究

对湖南4个不同区域点16个参加田间品种比较试验的板栗品种坚果调查、观察和测定,研究板栗品种坚果的遗传多样性,探明板栗品种坚果性状间的遗传关系,为板栗品种资源的保存和利用提供科学依据.对坚果性状的研究表明各品种间存在较大的遗传差异,而且大多数品种在不同区域的表现是稳定的.各品种间的耐贮性达到显著水平,说明各品种间存在较大的耐贮性的遗传差异,证明16个良种的耐贮性遗传多样性较丰富.