小麦 B 染色体组双端体旗叶 CO2 导度的研究

采用整套“中国春”Ｂ组双端体为材料，研究了田间条件下不同染色体臂缺失对叶片导度及净光合速率（Ｐｎ）的影响，结果表明：在旗叶一生中，气孔导度（ｇｓ）、叶肉导度（ｇｍ）和净光合速率（Ｐｎ）均于叶片全展达到最大值以后逐渐下降，胞间ＣＯ２体积比（Ｃｉ）自叶片全展后不断增加。各供试Ｂ染色体组双端体材料的叶片导度表现不同，染色体臂１ＢＬ、２ＢＬ、５ＢＬ、６ＢＬ、２ＢＳ和３ＢＳ对气孔导度（ｇｓ）有正效应，７ＢＬ     

关于液压油液若干问题的研究

液压系统能否可靠地工作，在很大程度上取决于系统中所使用的液压油液。本文从液压油的选用，污染及在使用过程中丰承的问题进行分析。并提出了预防污染和防止在使用中油温过高的各项举措。     

马氏珍珠贝肉营养液的研制及营养评价

采用酶技术,利用珍珠养殖场开珠后的废弃物－－马氏珍珠贝肉,研制珍珠贝肉营养液。结果显示,采用枯草杆菌中性蛋白酶和风味酶Ｆｌａｖｏｕｒｙｚｍｅ联合水解马氏珍珠贝肉的效果最好,通过正交试验法确定了酶法水解的最佳工艺条件是：温度５０℃,时间５ｈ,ｐＨ６．５,枯草杆菌中性蛋白酶和Ｆｌａｖｏｕｒｙｚｍｅ的添加量分别为０．６％和０．２５％。对营养液的营养价值进行分析评价,营养液中蛋白质达到７３．６ｍｇ／ｍＬ,     

世界天然橡胶科研发展文献计量研究

根据1994~2012年间SCI-Expanded(简称SCI-E)数据库收录的世界天然橡胶科研成果,统计与分析世界天然橡胶科研发展趋势、研究力量和研究学科热点,揭示世界天然橡胶科研发展现状、特点及对中国的借鉴之处,为中国天然橡胶行业的科研和生产提供可行性对策。     

紫心甘薯徐紫薯3号主要性状和生物产量动态变化规律分析

[目的]研究徐紫薯3号生长时期的性状变化及其性状之间的相关性、并探明生物产量动态变化规律,有利于通过栽培措施进一步提高该品种的产量和花青素含量。[方法]对徐紫薯3号在6个时期的田间性状、品质性状以及生物产量进行系统测定,对该品种的主要性状与产量变化规律进行了探讨。[结果]徐紫薯3号主要性状除花青素含量外,最盛时期一般出现在90 d以后,其中地上部干率(叶柄干率、叶片干率和茎干率)之间,以及与还原糖含量、单株薯块重两两之间都表现出显著甚至极显著正相关水平。徐紫薯3号栽插后90 d内的同化产物分配于茎叶较多,分配于块根较少,而在90 d以后虽然光合能力和净同化率逐渐下降,但分配于块根的同化产物迅速上升,并到135 d时达到最大值。[结论]徐紫薯3号是一个多肥适应型的晚熟品种,并且其花青素积累过程属于波动变化型。因此,可以通过合理增加施肥量和延长其生育期来提高徐紫薯3号的产量,并在栽苗后60 d内,通过调节温度、光照、水分,以及植物激素处理等方法来提高其花青素含量。     

滨州市蝗虫发生规律研究初报（英文）

通过1991~2010年的系统普查与探讨,查明滨州市总科蝗种共18种,隶属于6科15属;分布于农田、夹荒、荒洼、特殊环境4个生态环境;明确了各生态环境、各个时期的优势种,常见种和少见种,及各蝗种的区系性质;明确了7种优势蝗种和2种少见种的生活史及习性。     

温室种植石斛套种灵芝的栽培技术

报道了利用温室种植铁皮石斛的下层空间套种灵芝的栽培技术,为提高铁皮石斛种植综合效益提供了一个新的途径。     

SPME/GC-MS法分析不同龙眼品种果实中的香气成分

采用SPME/GC-MS法对4个龙眼品种果实香气成分进行了分析鉴定。结果表明,4个龙眼品种共检测出44种芳香物质,其中烷类11种,烯类18种,酯类10种,醇类3种,酮类1种,炔类1种,它们构成4种龙眼主要的香气成分。4个龙眼品种在香气组成和含量上有所差异,储良、东良、东丰、石硖中分别含有25种、24种、26种、21种香气成分。其中,4种龙眼共有的香气成分有7种:分别是十七烷、罗勒烯(顺式)、罗勒烯(反式)、别罗勒烯、1,3,8-对-薄荷三烯、α-石竹烯、(E)-β-金合欢烯,但其相对含量都有所差异;此外,各品种也具有自己独特的香气成分,如储良特有的香气成分有9种:包括十六烷、2-甲基-4-亚甲基-5-(2,2-二甲基环丙基)-1-戊烯、5-环丙基戊酸乙酯、二十酸乙酯、棕榈酸乙酯、9-十六碳烯酸乙酯、香叶基芳樟醇、芳樟醇、2,7-二甲基-3-辛烯-5-炔;东丰特有的3种:包括1-碘十一烷、反式,反式-法尼基酸甲酯、2-羟基十二烷酸甲酯;石硖特有的4种:包括十一烷、(-)-异丁香烯、1,3,3-三甲基-2-乙基环己烯、喇叭茶醇;东良没有特有的香气成分。     

Evolution of Nitrogen,Phosphorus and Potassium Fertilizer Application Rates in Cotton Fields and lts lnfluences on Cotton Yield in the Yangtze River Valley

[Objective] The historical evolution pattern of nitrogen （N）, phosphorus （P） and potassium （K） fertilizer application rate and its effects on lint cotton yield were explored to provide the theoretical basis for reasonable fertilizer management strate-gy in the cotton planting region of the Yangtze River Val ey. [Method] GGE biplot analysis method was adopted to analyze the correlation among N, P and K fertilizer application rate and lint cotton yield with the dataset of national cotton regional trials of the Yangtze River Val ey during 1991-2013. The linear and nonlinear regression analysis method was used to reveal the evolution of the fertilizer applying patterns, and analyze the effects of N, P, K application rates on cotton lint yield. [Result] The application rates of N, P and K fertilizer presented highly significant positive corre-lation with lint cotton yield, among which the potassium fertilizer was the strongest relative factor with lint cotton yield, fol owed by phosphorus fertilizer, while nitrogen fertilizer was the weakest factor. The application rate of nitrogen fertilizer was relat-ed with the test year in the pattern of a quadratic function, while phosphate and potassium had progressive increase linear relation with the test year in the cotton planting region of the Yangtze River Val ey. Meanwhile, cotton lint yield was in re-sponse to nitrogen fertilizer content increase with a quadratic parabola function, and increased with the applying phosphate fertilizer and potassium fertilizer content with linearly increasing function. [Conclusion] The increasing application amount of N, P and K fertilizer was general y beneficial to cotton yield improvements, however, ex-orbitant applying nitrogen fertilizer was unfavorable for cotton production, and a reasonable mixture formula of N, P and K fertilizer was better in terms of cotton yield-increasing effect.     

Evaluation on Cultivated Land Resource Ecologi-cal Service Value in Wuhan Metropolitan Area

The land ecosystem service function value contains the gas regulating function value, air purification function value, water conservation value, land conser-vation value, soil nutrient conservation value and maintain biodiversity value. Based on the method of market value and the data of Hubei Statistical yearbook, cultivat-ed land resources of ecosystem service function value is 730 038.69Mil ion in 2007-2009, and 714 774.99 Mil ion in 2010-2012 in Wuhan Metropolitan Area. After three years of development, Wuhan Metropolitan Area of ecological value of cultivated land has increased by about 3.97%. From the point of each composition, the im-portance of gas regulating function of cultivated land resources and water conserva-tion function is the forefront. From the point of spatial distribution, the highest of annual average value of the cultivated land ecological was Huanggang （1.725 bil ion yuan）, the lowest was Ezhou （217.868 6 mil ion yuan） in 2010-2012. From the point of space changes, the land ecological value increased only in Qianjiang city, while farmland ecological value in other cities was fal ing The conclusion is of direc-tive significance to the regional land protection policy and the farmland reasonable distribution, for Wuhan Metropolitan Area and other areas.