豫麦10号高产栽培技术调查总结

通过对小麦新品种豫麦1O号的观察,认为该品种在上蔡县增产潜力较大。为充分发挥其增产优势,从整地播种,施肥浇水,中、后期管理等方面提出了措施和建议。     

额尔齐斯河流域生态系统格局及变化

本文首先对额尔齐斯河流域气候，地貌，水文等环境因子特征进行了评述，进而阐述了流域生态系统的特征和格局以及在自然和人为干扰作用下的变化。分析结果表明在自然干扰作用下流域生态系统的格局与流域水文情势变化相适应，处于准稳定变化状态，而在人为对流域水文情势扰动下，流域生态系统的格局间接地受到影响。从而产生新的格局，其作用的强度，持久性和生态系统的格局变化程度过错大于大于自然干扰作用下的变化。引额调水工程对额尔齐斯河流域河谷生态系统内部单元格局变化具有重要影响。     

A leakiness index for assessing landscape function using remote sensing

The cover, number, size, shape, spatial arrangement and orientation of vegetation patches are attributes that have been used to indicate how well landscapes function to retain, not ‘leak’, vital system resources such as rainwater and soil. We derived and tested a directional leakiness index (DLI) for this resource retention function. We used simulated landscape maps where resource flows over map surfaces were directional and where landscape patch attributes were known. Although DLI was most strongly related to patch cover, it also logically related to patch number, size, shape, arrangement and orientation. If the direction of resource flow is multi-directional, a variant of DLI, the multi-directional leakiness index (MDLI) can be used. The utility of DLI and MDLI was demonstrated by applying these indices to three Australian savanna landscapes differing in their remotely sensed vegetation patch attributes. These leakiness indices clearly positioned these three landscapes along a function-dysfunction continuum, where dysfunctional landscapes are leaky (poorly retain resources). This revised version was published online in July 2006 with corrections to the Cover Date.     

苹果渣发酵料栽培糙皮侧耳优良菌株的选育

新选育的糙皮侧耳菌株PL -A2 属于早熟型品种。该菌株菌丝在 5～ 37℃温度范围内均能生长 ,菌丝生长适温为 18～ 30℃ ,最适温度为 2 5～ 2 8℃。在苹果渣发酵料培养基上 ,菌丝粗壮、整齐、洁白 ,爬壁能力强 ,满袋天数为 2 2d± 1d。经推广栽培证明 ,PL -A2 是高产优质菌株     

Modelling Plant Disease Epidemics

An epidemic is the progress of disease in time and space. Each epidemic has a structure whose temporal dynamics and spatial patterns are jointly determined by the pathosystem characteristics and environmental conditions. One of the important objectives in epidemiology is to understand such spatio-temporal dynamics via mathematical and statistical modelling. In this paper, we outline common methodologies that are used to quantify and model spatio-temporal dynamics of plant diseases, with emphasis on developing temporal forecast models and on quantifying spatial patterns. Several examples of epidemiological models in cereal crops are described, including one for Fusarium head blight.     

利用RAPD标记评价桃种间杂交一代群体的分离方式

以毛桃2-7(Prunus persica)、山桃白山碧桃(Prunus davidiana)以及两者的F_1代为试材,对RAPD标记的分离方式进行分析。结果表明,RAPD标记在F_1代呈3种分离方式:孟德尔分离、偏离孟德尔分离规律、异常分离。3种分离位点出现的频率和数量分别为:80%、240,14%、42,6%、18。呈孟德尔分离的情况有:不分离、1:1分离和3:1分离,其中不分离的频率为64％。并对偏离孟德尔分离比例和异常分离的RAPD标记进行分析。其研究结果可为该群体是否适合构建遗传连锁图谱进行评价及进一步利用该群体奠定良好基础。     

阿魏蘑与杏鲍菇高产优质栽培模式研究

试验证明，阿魏蘑和杏鲍菇最佳栽培模式为菌棒半脱袋竖向畦栽半覆土栽培模式；最适环境条件为菇房温度13～20℃，空气相对湿度85％～95％；最佳栽培设施为半地下冬暖式塑料大棚。     

灰树花不同配方栽培研究

对灰树花七种栽培配方进行了研究，其结果表明：木屑和棉籽壳作为栽培的主要原料，若等比例混合。生物学效率最高；麦麸与玉米粉搭配使用，可以提高灰树花的产量及生物学效率；平菇废料是栽培灰树花较好的原料，并具有很好的经济效益、社会效益和生态效益；并筛选出灰树花高产的三个配方。     

鸡腿蘑菌丝体的同工酶研究

用8种不同培养基配方，培养鸡腿蘑菌丝体，其同工酶分析结果表明，鸡腿蘑菌丝体酯酶(EST)同工酶谱差异明显，过氧化物酶(POD)同工酶谱差异明显。