利用大白菜DH群体构建AFLP遗传连锁图谱   总被引：11，自引：0，他引：11  

张晓芬  王晓武  娄平  张晓伟  王永清  原玉香  赵建军  孙日飞 《园艺学报》2005,32(3):443-437

 以大白菜‘汴早- 26’和‘光90E16’的F₁ 代进行游离小孢子培养所获得的含有59个株系的DH群体为试材, 利用AFLP技术通过63对引物筛选共获得346个AFLP多态性标记, 运用JoinMap 3.0软件构建大白菜遗传连锁图谱。该图谱主要包括10个连锁群, 总图距为708 cM, 平均图距为2.0 cM。  相似文献   

瓜类嫁接栽培技术探讨   总被引：1，自引：0，他引：1  

刘大海  肖伟  罗章勇  陈义康  田时炳  王永清 《西南园艺》2005,33(1):7-9

从6个瓜类砧木品种中，选出了黄瓜适宜砧木为黑籽南瓜，苦瓜适宜砧木为黑籽南瓜和本地肉丝瓜，西瓜适宜砧木为超丰F1和欣京砧一号。瓜类嫁接方法以顶插接法和劈接法为宜，嫁接时期在3月初为宜。重病地黄瓜嫁接苗比自根苗枯萎病发病率降低95．8％，产量提高34．9％；嫁接苦瓜发病率降低83．7％，增产16．9％；嫁接西瓜发病率降低88．9％，增产13．7％。  相似文献   

特早熟桃新品种‘秦捷’     

韩明玉  田玉命  于成哲  张满让  王安柱  王淑莉 《园艺学报》2005,32(4):755-755

 ‘秦捷’系‘大久保’ ב春蕾’育成的特早熟桃新品种, 树势强健, 树姿半开张, 平均单果质量135 g, 最大200 g, 果面着玫瑰色晕, 肉白, 脆硬, 溶质, 甜酸适中, 微香, 较耐贮运, 果实6月上旬成熟, 丰产, 盛果期产量可达32.355 t/hm²。  相似文献   

桃新品种‘乾兴银凤’     

吕平会  季志平  贾建军  田建生 《园艺学报》2005,32(5):960-960

 ‘乾兴银凤’桃是从日本引进品种中选出的优良品种, 经品种比较试验和多点区域试验, 表现丰产, 抗逆, 不裂果等特性。  相似文献   

极早熟大白菜新品种豫新50的选育     

蒋武生  张晓伟  耿建峰  原玉香  韩永平 《中国瓜菜》2005,(4):27-29

采用游离小孢子培养双单倍体技术快速育成早熟大白菜杂交一代新品种豫新50。结果表明:豫新50为极早熟耐热品种,从播种到采收50-56d,高抗病毒病和软腐病,抗霜霉病;平均667m2产净菜2716.87kg,株形紧凑,适宜密植;叶球矮桩叠抱,整齐度高,商品性好;质地柔嫩,风味佳,每100g鲜样含粗蛋白质1.19g,粗纤维0.40g,维生素C20.8mg,可溶性糖2.80g。  相似文献   

苹果抗病虫育种研究概况     

闫忠业  娄汉平  田颖辉 《中国果树》2005,(6):48-49,58

抗病虫育种已成为许多苹果生产国苹果育种的主要目标.选育抗病虫苹果新品种可以降低生产成本,同时也可以满足生产绿色果品的需要.20世纪80年代以来,随着世界环保呼声渐高,苹果抗病虫育种研究日益受到重视,并取得了一定进展.但在我国苹果抗病虫育种研究甚少,仅在方法上进行一些探索,本文概述苹果抗病虫育种研究.  相似文献   

桂花在园林景观设计中的应用   总被引：2，自引：0，他引：2  

曹受金  田英翠 《西南园艺》2005,33(1):23-25

对桂花植物造景的配置原则、园林应用进行概述和研究，提出因地制宜、层次错落、季相变化、背景烘托、民族传统的配置原则，并就园林应用上桂花的独立造景，桂花与其他植物的配置，桂花与山石、建筑物的配置作了分述。  相似文献   

蜂花粉营养液的营养成分分析   总被引：4，自引：0，他引：4  

孙丽萍  田文礼  董捷 《中国蜂业》2005,56(7):6-7

蜂花粉营养液以油菜花粉和蜂蜜为原料,经过先进的生产工艺制备而成.本文主要对其营养成分进行了分析,该营养液的营养成分搭配合理,含有17种氨基酸,其中包括8种必需氨基酸,氨基酸总量为575.2 mg/100mL;钙31.90 mg/100mL、钾77.46 mg/100mL、钠6.16 mg/100mL、镁19.12 mg/100mL、锌0.14 mg/100mL、铁0.14 mg/100mL、锰0.13 mg/100mL、铜0.053 mg/100mL;尼克酸0.24 mg/100mL、维生素B2 0.01mg/100mL、维生素B6 0.74 mg/100mL、维生素C 0.75 mg/100mL.  相似文献   

Comparison of morphology, viability, and function between blood and milk neutrophils from peak lactating goats          下载免费PDF全文

Sui Zhi Tian  Chai Ju Chang  Chih Chi Chiang  Huo Cheng Peh  Mu Chiou Huang  Jai-Wei Lee    Xin Zhao 《Canadian journal of veterinary research》2005,69(1):39-45

The morphological features of blood and milk neutrophils from peak lactating goats were compared using light microscopy, scanning electron microscopy and flow cytometry in order to investigate the cytological changes of neutrophils after migration into the mammary gland. The kinetics of reactive oxygen intermediates (ROI) generation and gelatinase release of blood and milk neutrophils, with or without stimulation of phorbol 12-myristate, 13-acetate ester (PMA), were used to characterize their responses to inflammatory stimuli. Neutrophils isolated from goat milk were highly segmented and contained multi-lobed nuclei. Ultrastructurally, milk neutrophils were more ruffled on the surface compared to blood neutrophils. Approximately 30% of milk neutrophils were undergoing cell death, either necrosis or apoptosis, in contrast to 8% of blood neutrophils. The ROI production of activated milk neutrophils peaked earlier than blood neutrophils, but the duration and the intensity were much less. Neutrophils from both sources augmented the release of gelatinase in response to PMA (1 ng/mL). However, the amount of gelatinase released from milk neutrophils was lower (P < 0.05) than that of blood neutrophils. In summary, more neutrophils become apoptotic and necrotic in the mammary gland, presumably due to spontaneous aging, the process of diapedesis, and the interaction with milk components. Milk neutrophils have impaired functionalities in comparison with blood neutrophils. The information is relevant when studying mammary gland immunity and related diseases, such as mastitis.  相似文献   

6%戊唑醇微乳剂   总被引：1，自引：0，他引：1  

田文学  孙景文  马洪艳  李波  王凤芝  孔斌 《农药科学与管理》2003,24(9):34-36

本文介绍了6％戊唑醇微乳剂配方的组成和制备方法，并对其性能和田间药效进行了测试和试验。  相似文献