彭州市丹景山镇典型农作物输出系数研究   总被引：1，自引：0，他引：1  

邢立文  魏新平  王龙  李华  王军勤  周云  何荣智 《中国农村水利水电》2012,(8):58-61

农业非点源污染具有随机性大、分布范围广、危害性大等特点,已成为重要的环境污染方式。根据现场实测,分析了四川省彭州市丹景山镇不同作物田的总氮、总磷输出系数,探讨了不同作物及不同典型水文年输出系数形成差异的原因,完善了输出系数模型,为控制丹景山镇农业氮素、磷素的输出提供建议。  相似文献   

兴宁市粮食增产模式攻关试点工作方案   总被引：1，自引：1，他引：0  

吴新龙  幸让新  肖雄 《现代农业科技》2015,(2)

介绍了兴宁市粮食增产模式攻关试点总体思路、基本原则和目标任务,结合该市市情,进一步阐述了兴宁市粮食增产模式攻关的技术模式和攻关内容,为兴宁市粮食增产模式攻关和高产创建提供参考。  相似文献   

盆栽地栽兼用型菊花新品种“金朵”的选育     

屈连伟  张艳秋  邢桂梅  卢闯  赵展  苏君伟 《北方园艺》2016,(10):154-157

2009年,以荷兰盆栽菊品种‘Breeze Dark Red’为母本,以辽宁省农业科学院花卉研究所2008年选育的地被菊品种"辽菊041"为父本进行杂交。2010年,在大量实生苗中选出株型紧凑、株冠近球形花朵颜色为亮黄色的单株,编号为2009-12-2。经组培扩繁后,于2012、2013、2014年,分别在沈阳、大连、辽阳、抚顺和铁岭等地进行盆栽和露地栽培试验,连续3年观察表明,2009-12-2的无性繁殖后代遗传性状稳定。2015年备案定名为"金朵"。  相似文献   

45份青海春小麦品种矮秆基因检测及效应分析     

马德林  邢瑜  郭仁世  王成林  张业猛 《麦类作物学报》2023,(10):1248-1253

为明确矮秆基因Rht-B1和Rht-D1在青海春麦区小麦品种中的分布，以青海春麦区历年种植的45份春小麦品种（25份育成品种，14份引进品种，6份地方品种）为材料，利用KASP标记技术检测其两个矮秆基因的分布，并分析这两个矮秆基因对株高、穗长、小穗数和穗粒数的影响。结果表明，Rht-B1位点上存在Rht-B1a和Rht-B1b两种等位变异，分布频率分别为91.11%和8.89%；Rht-D1位点上存在Rht-D1a和Rht-D1b两种等位变异，分布频率分别为86.67%和13.33%。25份育成品种中，Rht-B1b和Rht-D1b的分布频率分别为16.00%和12.00%，未发现Rht-B1a和Rht-D1a；引进品种中仅含有Rht-D1b，分布频率为21.43%；地方品种中未发现Rht-B1b和Rht-D1b。Rht-B1b和Rht-D1b均具有一定的降秆效应，Rht-D1b的降秆效应大于Rht-B1b。携带Rht-B1a/Rht-D1b品种的株高显著低于携带Rht-B1a/Rht-D1a和Rht-B1b/Rht-D1a的品种，该组合类型不仅可使株高降低，也可增加小穗数和穗粒数；未发现携带Rht-B1b/Rht-D1b组合类型的品种。  相似文献   

Relationship between polymorphism of angiotensin converting enzyme gene and different traditional Chinese medicine syndrome in patients with essential hypertension     

DONG Chang-wu  DONG Mei  XING Qi-shu  HUANG Kai-quan  ZHOU Xue-mei  CHEN Xue-gong 《园艺学报》2010,26(8):1545-1548

AIM: To study the distribution of angiotensin converting enzyme (ACE) gene I/D polymorphism and its relationship with various traditional Chinese medicine (TCM ) syndromes in patients with essential hypertension.METHODS: 120 individuals with essential hypertension were involved and classified into liver-fire hyperactivity(LFH) syndrome,yin-deficiency and yang-hyperactivity(YDYH) syndrome, yin-yang deficiency(YYD) syndrome and sputum-dampness retention(SDR) syndrome based on the syndrome differentiation of TCM, while 30 normal individuals served as the control group.The polymerase chain reaction (PCR) was used to test ACE I/D polymorphism.RESULTS: The ACE gene DD genotype in yin-deficiency and yang-hyperactivity syndrome was markedly higher than that in control group(P＜0.05).There was no significant difference in ACE gene II, ID genotypes and alleles between patients with hypertension and normal controls(P>0.05).There was no difference in ACE genotype and allele among different TCM syndromes in patients with essential hypertension(P>0.05).CONCLUSION: The DD genotype of ACE polymorphism is associated with yin-deficiency and yang-hyperactivity syndrome in patients with essential hypertension.  相似文献   

用CODEHOP设计简并引物克隆反刍月形单胞菌K6乙酸激酶基因片段   总被引：3，自引：0，他引：3  

逄晓阳  刑鑫  刘国文  王哲 《中国兽医学报》2010,30(1)

利用CODEHOP设计细菌乙酸激酶的简并引物,选用1对引物ACKSe以高效丙酸生成菌反刍月形单胞菌K6基因组DNA进行PCR,得到749 bp PCR产物,产物经pMD18-T载体克隆转化至DH5α大肠杆菌中,测序后经Blastx比对,此DNA产物与其他菌属来源的乙酸激酶蛋白序列具有相似性,所克隆的序列即为K6的乙酸激酶基因片段。用CODEHOP程序化设计的简并引物可信性强,阳性率高。该基因的成功克隆为丙酸生成菌K6乙酸代谢工程研究提供了依据。  相似文献   

阜阳市甘薯产业开发前景及对策     

邢凤武 《现代农业科技》2013,(15):329+331

介绍了阜阳市甘薯市场的开发优势,分析了该市优质专用甘薯开发前景,并提出对策,以期为该市甘薯产业的发展提供参考。  相似文献   

临洮县冬小麦套种防风栽培技术     

相建平 《甘肃农业科技》2010,(12):42-43

<正>防风为伞形科多年生草本植物,以根入药,味辛甘,性温和。有解表发汗、祛风除湿之功效,对风寒感冒、头痛、皮肤瘙痒、荨麻疹、发热、关节酸痛、破伤风等病症具有较好的治疗作用。此外,防风的叶片和花也可入药。临洮县农业技术推广中心于2000年引种驯化成功,近年来主要在川水区及部分山坪区种植,大部分与冬小麦套种。  相似文献   

美洲斑潜蝇与南美斑潜蝇的寄生蜂自然控害能力的调查   总被引：2，自引：2，他引：2  

王淑贤  李学军  郑国  张广学  邢星  李艳 《中国植保导刊》2005,25(6):5-7

经对辽宁省岫岩蔬菜区美洲斑潜蝇和南美斑潜蝇的寄生蜂及其寄生情况的初步调查,结果表明,这两种斑潜蝇的寄生蜂有9种。其中优势种群有潜蝇姬小蜂和茧蜂科的种类3种以上。在蔬菜田不用杀虫剂的情况下,寄生蜂6月中旬后迅速上升,7月份对两种斑潜蝇的寄生率可达75%以上,对斑潜蝇种群具有明显的控制作用,可使夏、秋季田间两种斑潜蝇种群迅速下降,一般不需防治。  相似文献   

The value of intrapericardial injection with a trans-diaphragmatic approach in the gene therapy of chronic heart failure rats     

HUI Hai-peng  LI Xiao-ying  LIU Tao  LIU Xiu-hua  SUN Sheng 《园艺学报》2005,21(4):674-678

AIM: To study the feasibility, security and validity of the intrapericardial injection with a trans-diaphragmatic approach in chronic heart failure rats and its value in the study of gene therapy for heart diseases, and further investigate whether adeno-associated virual gene transfer of sarcoplasmic reticulum Ca2+-ATPase （SERCA2a） gene can improve ventricular function in chronic heart failure (HF) rats. METHODS: An animal model of heart failure was obtained by creating descending aortic constriction in rats. Recombinant adeno-associated virus, carrying enhanced green fluorescent protein (EGFP) gene and recombinant adeno-associated virus carrying SERCA2a gene, were respectively injected into pericardium of heart failure rats in different groups (group HF+EGFP and group HF+SERCA2a) by intrapericardial injection with a trans-diaphragmatic approach. After 30 days, hemodynamic parameters were measured and analyzed. Cryosection was analyzed by fluorescence microscopy to examine the expression of green fluorescent protein, and Western blotting was performed to detect the expression of SERCA2a. RESULTS: Green fluorescence was detected in cryosection of the hearts in all rats in group HF+EGFP and the expression of green fluorescent protein was ubiquitously. The expression of SERCA2a in all rats in group HF+SERCA2a was more than those in group HF and group HF+EGFP. And overexpression of SERCA2a improved the systolic and diastolic function of heart failure rats significantly and the hemodynamic parameters were similar with those of the controls. CONCLUSION: The intrapericardial injection with a trans-diaphragmatic approach suggests a simple, safe, efficient and cheap technique for the gene therapy of chronic heart failure. Gene thransfer of SERCA2a may be a new approach for the treatment of chronic heart failure.  相似文献