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The first, selecting Mannitol of polyhydric and Dextran ofpolysaccharide as subsidiary material, In accordance with differentusing quantities, making up eight recipes, freeze-drying test is madewith eight recipes differently. By adjusting recipe, to select themethod of two factors three levels. The best recipe determined is thatof Mannitol(160mg/bottle) and Dextran(40mg/bottle), Solving theproblem of description、moisture(≤1.5%)、solution(≤6s)、stability(95.0~110.0%) etc., The quality of preparation has beenimproved.

首先,选择赋形剂多元醇类的甘露醇和多糖类的右旋糖酐作为辅料,按照不同的用量,组合成8种处方进行冷冻干燥试生产,采用二因素三水平的满因子分析法,通过处方调整,确定甘露醇160mg/瓶、右旋糖酐40mg/瓶为最佳处方,解决了冻干制剂在性状、水分(≤1.5%)、溶解性(≤6s)和含量稳定性(95.0~110.0%)等方面的不足,提高了产品质量。

In this study, based on establishment of stable and high efficient transfergenic receptor system with supersweet maize callus, the multiple insect-resistant genes were successfully co-transformed into a elite inbred line 1132 and a variety using particle bombardment and overy microinjection, and the transgenic integration, expression and inheritance were studied by means of target character and molecular biology method.

本研究在建立高效稳定基因转化受体系统的基础上,利用基因枪和子房注射两种方法将多个抗虫基因成功转化抗性较差的超甜玉米自交系及其品种,并从分子水平和目标性状上研究外源基因的转入、整合、表达与遗传规律。

Itis main raw material of tetradecane,others applications include:liquid mosquito-repellent incense,hydraulic oil of large-scale punch,paraffin chloride,anticorrosive paint.powder paint,and top-grade melt adhesive,its derivative is chainpoly-anhydride of 14c binary acid,it is very useful chenical and medical intermediate,it can be used ad curing agent of epoxy and propylene resin,polyester improved additive etc.

外观与性状无色液体,溶解性不溶于水,可混溶于乙醇、乙醚是生产十四碳烷烃的主要原料,其它应用包括:液体蚊香、大型冲压机的液压油、氯化石蜡、防腐涂料、粉末涂料也可用作高档热熔胶,其衍生产品十四碳二元酸的直链聚酐,是一种非常有用的化工及医药中间体,可用于环氧及丙烯树脂固化剂、聚酯改性添加剂等等。

A pot experiment was conducted with two soybean varieties (Di2003-1 and Hefeng25) and two main soil types in Heilongjiang Province to study the interactive effects of variety and soil type on the root morphology and nodule traits of soybean plants. Root samples were collected at the fifth trifoliolate stage, bloom-beginning stage, pod-beginning stage, full pod stage, seed-beginning stage, full seed stage, and full maturity stage for the analysis of root dry mass, root length, root surface area, average root diameter, nodule number, nodule fresh mass, and mass per nodule.

选取黑龙江省2种主要农田土壤类型和2个大豆品种(滴2003-1和合丰25),采用盆栽试验,分别于大豆第5片复叶展开期、初花期、结荚初期、结荚盛期、鼓粒初期、鼓粒期和完熟期取样,进行根系形态(根干质量、根长、根表面积和平均根直径等)和根瘤性状(根瘤数、根瘤鲜质量和单个根瘤质量)的动态分析,以研究品种和土壤类型对大豆根系形态特征的影响。

The results were summarized by variance analysis and correlation analysis, the diversity reached significant positively correlated level of varieties carotene, polysaccharide,γ-am1nobutyric and crude fibre content, but the diversity bad- not reached significant positively correlated level of varieties Zn, Cr and Trigonelline content.

对11个品种肉用印度南瓜主要果实性状进行调查,并对果肉的8种营养成分测定;通过方差和相关分析得出结论:胡萝卜素、多糖、淀粉、γ-氨基丁酸、粗纤维含量在各个品种间差异均达到极显著,Zn、Cr、葫芦巴碱的含量在各个品种间差异不显著。

The advantages of the simple twice zymotechnics lie in the characters of the cultivation materials, the growth of mycelia, the control of plant diseases and insect pests, the output of Volvariella Volvacea and the production cost. All these indicate that simple twice zymotechnics is a relatively reasonable compost treatment in Volvariella Volvacea cultivation.

简易二次发酵法的栽培材料理化性状、草菇菌丝生长、病虫害控制和草菇的产量、生产成本等,都比自然堆沤发酵法和常规二次发酵法有较大的优势,表明简易二次发酵法是草菇栽培中较理想的一种培养基处理方法。

Rice cytoplasmic male sterility is female parent genetic phenomenon, which is the main means to utlize filial superiority.

水稻细胞质雄性不育是一种母性遗传性状,它是水稻杂种优势利用的一个重要途径。

The runner characters of thirty four accessions involved in thirteen strawberry species were researched and classified in this paper.

对草莓属植物13个种共34份试材的匍匐茎性状进行了较系统的调查和分类研究。

Their six generations F1, F2, backcrosses B1 and B2 and their parents P1 and P2 were used to study the inheritance of eggplant fruit color traits with joint analysis of multiple generations.

以3个果色不同的茄子栽培种自交系为试验材料,用色差仪和目测相结合的方法将果色分级,通过P1、P2、F1、B1、B2和F26个世代联合分析法,研究茄子果色性状的遗传规律。

In this paper,the inheritance and transmission law of the character for wheat leaf-tip necrosis were firstly investigated with the contrasting character of leaf-tip necrosis and normal leaf in wheat varieties for basic test materials by reciprocal crosses and backcrosses,hybrid progeny analysis and aliencytoplasm substitution.

小麦干尖叶是近年在小麦育种中所发现的一种叶部坏死性状,直接影响小麦的产量。

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