Effect of RBSDV Infection on Transcriptional Expression of Abscisic Acid Metabolism Related Genes in Rice     

Hai-ping NI  Qiu-fang XU  Ying LAN  Qing-qing CHEN  Jin-feng ZHANG  Yi-jun ZHOU 《中国水稻科学》2015,29(3):319

  相似文献   

常见计算机病毒的防范     

牛铭晨  赵娜  毕业莉  徐敬业  万发仁 《计算机与农业》2011,(11):85-86

分析了计算机常见的四种病毒,根据其固有特点提出了相应的防范方法及建议。  相似文献   

PCV2衣壳蛋白羧基端基因在T4噬菌体表面的展示及ELISA方法的建立     

王宪文  曹永长  马静云  谢青梅  毕英佐 《中国兽医学报》2011,31(8):1103-1106

用PCR扩增猪圆环病毒Ⅱ型广东分离株的衣壳蛋白羧基端基因,将PCR产物连接到pR质粒,转化DH5α细胞,筛选阳性克隆进行PCR鉴定并测序后,转化E2菌,将重组E2菌与缺陷型噬菌体T4-Z1同源重组后,得到重组噬菌体,经SDS-PAGE和Western blotting分析,表明衣壳蛋白片段在噬菌体表面正确展示,表达的融...  相似文献   

江苏省推行兽药GSP的体会与思考     

周春红  时勇  毕昊容  朱丽英 《中国兽药杂志》2011,45(6)

回顾总结了江苏省兽药GSP试点工作的主要做法,阐述了制定江苏省关于实施<兽药经营质量管理规范>细则的几点考虑,以及贯彻实施<兽药经营质量管理规范>的基本思路,供参考借鉴.  相似文献   

毕节市漆树品种产量与树皮性状的灰色关联度分析     

刘崇欣  周应书  毕宁 《贵州农业科学》2015,(5)

为漆树优良品种的选择以及灰色系统理论在林业林木品种评价上的运用提供参考，对毕节市8个漆树品种红漆大木、粉皮大木、灯台大木、红尖大木、肤胭皮、粉红皮、白杨皮、青杠皮等树皮解剖中6个主要性状与产漆量的关系进行灰色关联度分析。结果表明：漆树树皮解剖的单个性状对产漆量有直接影响，其中以漆汁道直径的大小关系最重要，直接关联度达0．7964；其次是活皮漆汁道单位面积与活皮厚度。从树皮解剖的综合性状看，漆树品种最好的依次是红尖大木＞红漆大木＞肤胭皮＞灯台大木＞白杨皮＞粉皮大木＞粉红皮＞青杠皮。分析结果与实际生产基本一致，表明在林业生产中运用灰色关联分析进行综合评价是可行的。  相似文献   

探讨有机烟叶的生产和管理     

贾健  朱金峰  张慢慢  王蒙蒙  许自成 《江西农业学报》2015,(6)

概述了国内外有机烟叶的发展状况,并从品种筛选、基地选择、施肥、除草、病虫害防治、打顶、抹杈、调制、收购、包装、贮存和不适用烟叶处理方面探讨了有机烟叶的生产技术体系,从生产管理和质量管理2个方面探讨了有机烟叶的生产管理,并对有机烟叶的发展进行了展望。  相似文献   

蛋鸡场清粪技术效能的层次分析法评价     

毕璐璐  廖新俤  吴银宝  王燕 《中国家禽》2014,36(21)

蛋鸡场采用的清粪技术包括人工清粪、刮粪板清粪、传送带清粪等.本文通过现场调研不同地区不同规模的蛋鸡养殖场清粪技术,构建了层次分析法模型,从技术成熟度、技术应用效果、技术经济评价等方面对蛋鸡场清粪技术进行了效能评价.结果表明,蛋鸡场采用人工清粪、刮粪板清粪和传送带清粪技术效能得分分别为77.72、85.83和87.36,传送带清粪和刮粪板清粪技术的效能得分均显著高于人工清粪技术(P＜0.05),传送带清粪技术效能与刮粪板清粪技术间无显著差异(P＞0.05);随着蛋鸡存栏数的增加,传送带清粪技术的效能值增加,但不同规模未显著影响传送带清粪技术效能(P＞0.05);年存栏20万～50万只商品蛋鸡的蛋鸡场,采用刮粪板清粪、传送带清粪和人工清粪技术时效能值分别为85.83、84.00和77.72,3种清粪技术间差异不显著(P＞0.05).本研究可为不同规模和不同区域的蛋鸡场选用清粪技术时提供参考.  相似文献   

Pathogen Analysis of Goat's Respiratory Diseases     

TAO Li  LAN Xian-li  LI Jun  MA Chun-xia  LAN Jin-hong  HUANG Ming-xue  LAN Mei-yi  BI Bing-fen  CHEN Ze-xiang  YANG Wei 《中国畜牧兽医》2016,43(4):1072-1078

To investigate the pathogens of goat's respiratory disease from a goat farm in Guangxi province, the epidemiological investigation, clinic observation, pathological examination, bacterium isolation and identification, biochemical test, PCR and animal experiment test were conducted.The preventive and control measures were taken on the basis of pathogen epidemiological characteristics and drug sensitive test results.The results showed that Mycoplasma, influenza virus and parasite were negative by isolation and culture or PCR, however, two strains of gram-negative bacteria named MS1 and MS2 were isolated from lung.MS1 was identified as Serratia marcescens by biochemical test and 16S rRNA sequencing, which shared 99% nucleotide homology with other Serratia marcescens in GenBank.And MS2 was identified as E.coil by the same methods that shared 99% nucleotide homology with other E.coli in GenBank.Animal experiment showed that two strains could cause death in mice.The drug sensitive tests showed two strains were highly sensitive to spectinomycin, amikacin, kanamicin and neomycin.Kanamycin and dexamethasone were used to treat the sick goats, and achieved good results.  相似文献   

玉米胚芽综合利用研究进展     

毕韬韬  吴广辉 《农产品加工．学刊》2014,(15):72-73

我国是世界上第二大玉米生产国,播种面积和总产量均占世界玉米播种面积和总产量的15%以上。玉米胚芽是酒精工业、玉米淀粉工业的副产物,其主要成分是脂肪和蛋白质,脂肪含量高达55%左右,蛋白质和灰分含量次于脂肪,因此对玉米胚芽进行综合利用意义重大。  相似文献   

The priority of management factors for reducing the yield gap of summer maize in the north of Huang-Huai-Hai region,China          下载免费PDF全文

Yue-e LIU  Yu-xin LI  Tian-fang LÜ  Jin-feng XING  Tian-jun XU  Wan-tao CAI  Yong ZHANG  Jiu-ran ZHAO  Rong-huan WANG 《农业科学学报》2021,20(2):450-459

Understanding yield potential, yield gap and the priority of management factors for reducing the yield gap in current intensive maize production is essential for meeting future food demand with the limited resources. In this study, we conducted field experiments using different planting modes, which were basic productivity(CK), farmer practice(FP), high yield and high efficiency(HH), and super high yield(SH), to estimate the yield gap. Different factorial experiments(fertilizer, planting density, hybrids, and irrigation) were also conducted to evaluate the priority of individual management factors for reducing the yield gap between the different planting modes. We found significant differences between the maize yields of different planting modes. The treatments of CK, FP, HH, and SH achieved 54.26, 58.76, 65.77, and 71.99% of the yield potential, respectively. The yield gaps between three pairs: CK and FP, FP and HH, and HH and SH, were 0.76, 1.23 and 0.85 t ha~(–1), respectively. By further analyzing the priority of management factors for reducing the yield gap between FP and HH, as well as HH and SH, we found that the priorities of the management factors(contribution rates) were plant density(13.29%)fertilizer(11.95%)hybrids(8.19%)irrigation(4%) for FP to HH, and hybrids(8.94%)plant density(4.84%)fertilizer(1.91%) for HH to SH. Therefore, increasing the planting density of FP was the key factor for decreasing the yield gap between FP and HH, while choosing hybrids with density and lodging tolerance was the key factor for decreasing the yield gap between HH and SH.  相似文献