Li Xueyuan\ Wang Qifa\ Xu Fenglin
2000, 19(3).
Abstract:Paddy soils derived from red soil, yellow brown soil and grey flow aquic soil were used to conduct K, P, Zn adsorption desorption experiment and K adsorption dynamics experiment by using thermodynamic adsorb equilibrium method and flow technique separate
2000, 19(3).
Abstract:A pot culture experiment was conducted to study the difference among 3 wheat varieties in characteristics of potassium uptake and potassium nutrition efficiency under 2 potassium levels condition. Relative yield in check treatment (EI) and potassium effic
He Jizheng\ Liu Dongbi\ Liu Fan\ Li Xueyuan
2000, 19(3).
Abstract:在比较几种测定土壤电荷零点方法的基础上,研究了中南地区几种土壤的正负电荷量、电荷零点(PZG)和净电荷零点(PZNC)。(1)推荐将盐滴定-电位滴 作为测定土壤PZC的常规方法,该法较电位测定(PT)法简便、消耗样品量较少,而比盐滴定(ST)法获取的信息量较多。(2)铁铝氧化物是土壤正电荷的主要载体,其中非晶形铁铝氧化物具有重要贡献。(3)在低PH时土壤主要带永久负电荷随PH升高,土壤可变负电荷量
2000, 19(3).
Abstract:Standardization of crop irrigation using the agrohydrological characteristics, such as texture,bulk density, soil moisture under the lowest water capacity and wilting moisture is investigated . It is found out that pre irrigating moisture of the soil hor
Chen Changfu ) Chen Xiaohui ) Riichi Kusuda )
2000, 19(3).
Abstract:The effect of glycyrrhizine (Gly) from licorice( Glycyrrhiza glabra ) as a adjuvant in vaccines against bacterial septicemia in mandarinfish( Siniperca chuatsi Basilewsky) was studied. Mandarinfish were vaccinated with formalin killed cells (FKC) and
2000, 19(3).
Abstract:通过电场诱导融合方法分别获得了续荷尔脐橙与粗柠檬、纽荷尔脐橙与夔柑两个组合的体细胞杂种。纽荷尔脐橙+粗柠檬级合获得了45棵再生植株。对其中的30棵株进行染色体检查,结果表明,全为四部体,2n=4x=36。过氧化物同工酶及RAPD分析表明再生植株为体细胞杂种。续荷尔脐橙+夔柑组合获得了25株再生植株。染色体检查结果表明,全为四倍体,2n=4x=36。RAPD分析表明再生植株为体细胞杂种。
2000, 19(3).
Abstract:Utilization of Power intensive tractor is benificial to agricultural production, but also produces a side influence to the soil on moisture, ventilation, fertility and plant biological activity conditions, which turn back to impair the yield of the crop
2000, 19(3).
Abstract:s The phenomenon of increasing endurance of samples which were sandwiched in longitudinal and cross sections by metals with high plasticity is investigated. The experiments were made for the reciprocate motion of the piston imitator and for the case when
Vladimir A Ivanchenko\ Vladimir V Nikolaev
2000, 19(3).
Abstract:The remote monitoring of the chemical composition of the lower atmosphere layers problem solving can be done through application of radar systems (RS) working in the range of superhigh frequencies (SHF) on resonance frequencies of contamination gases' rot
Noritsina M V\ Suslova T A\ Klochkova I N\ Khorosheva T M
2000, 19(3).
Abstract:The article examines methods of furfural production as a result of its condensation with aldehydes and ketones and further transformations to new furylsubstituted carbamides. Their growth generating and immunization activity is shown in pre sowing treatm
Wu Zhenfang ) Xiong Yuanzhu ) Deng Changyan ) Cai Gengyuan ) I.Harbitz )
2000, 19(3).
Abstract:激素敏感脂肪酶 (HSL)是动物体脂肪分解的关键酶。本研究采用PCR RFLP法研究了 5个不同品种猪HSL基因部分 5’端区域和第 6内含子至第 9外显子区域DNA多态性。结果在对应于基因第 7内含子的DNA扩增片段中发现一AluI酶切位点多态性 ,梅山猪和湖北白猪中表现 3种等位基因型 (PP、PQ和QQ) ,等位基因P和Q的频率分别为 0 .6 5、0 .35和 0 .1 5和 0 .85,而通城猪中全部表现为PP基因型 ,大白猪和长白猪中全部表现为QQ基因型
2000, 19(3).
Abstract:本文研究了导入额外拷贝的肺炎克氏杆菌 (Klebsiellapneumoniae)nifA基因对受体费氏中华根瘤菌 (Sinorhizobiumfredii)HN0 1在大豆根圈的定殖和竞争结瘤的影响。将HN0 1分别与带有标记基因luxAB的参照菌株HN0 1L和带有nifA基因和标记基因luxAB的重组菌株HN0 1NL按照 1∶1等量比例接种于大豆黑龙 3 3种子表面 ,在灭菌土和非灭菌土中研究其定殖动态。每一供试菌株在根圈中的比例依次于播种后第 3天、第 7天、第 1 0天、第 1 2天、第 1 4天、第 1 6天、第 2 1天和第 3 6天进行测定 ,占瘤率在播种后第 4 0天进行比较测定。盆栽实验结果表明 :导入了额外拷贝nifA基因的重组菌HN0 1NL与受体菌HN0 1和参照菌HN0 1L相比较 ,在灭菌土和非灭菌土中均表现出显著增强的大豆根圈适应性和竞争能力
Yang Shuhua\ Wen Shengxian\ Li Zebing\ Wan Jingmeng\ Tian Yawen\ Liu Canhui
2000, 19(3).
Abstract:To study the combining ability of 12 agronomic traits of two line Indica hybrid rice, 6 different photo thermo sensitive sterile lines (PGMS) and 7 restorer lines were used to make an incomplete diallel cross. Results showed that the yield and other ch
Chen Yuping ) Andrzej Wojciechowski )
2000, 19(3).
Abstract:Cytoplasm male sterility Brassica napus supplied by the Department of Genetics and Plant Breeding of Poznan Agricultural University was used as maternal plant to cross with Brassica oleracea var. italica . The interspecific cross effectiveness
Kong Ke\ Yuan Zonghui\ Fan Shengxian
2000, 19(3).
Abstract:本研究旨在用ELISA试剂盒建立一种简便、可靠的猪肝脏中克仑特罗残留的检测方法。添加了适量克仑特罗标准工作液的肝脏样品同 5倍 0 .1mol/L的盐酸溶液匀浆 ,冻藏、解冻后离心。上清液用正已烷萃取脂溶性杂质 ,再用氢氧化钠溶液调节pH至 1 2。用异丁醇提取待测药物 ,将提取液在 6 0℃用氮气吹干。用 1mL试剂盒中的稀释液将残渣溶解后 ,用ELISA法在 4 50nm处检测克仑特罗的含量。该方法的线性范围为 0 .1 3~ 5.3ng/mL ,回归方程为y=- 1 .80 0x 2 .2 85,相关系数r=0 .997,最低检测限为 0 .1 3ng/mL ,最低可定量限为 0 .2 5ng/g,浓度为 0 .2 7、0 .53和 1 .0 6ng/g时的回收率分别为 6 8.9%、72 .7%和 77.4 % ,CV <2 0 %。本法的可靠定量限低于克仑特罗在动物肝脏中的最高残留限量 ,且回收率和变异系数均能满足残留检测的要求 ,是一种较简便、可靠的克仑特罗在猪肝脏中残留的快速检测方法
Wang Weimin ) Amararatne Yakupitiyage )
2000, 19(3).
Abstract:Samples collected monthly from Xujiahe Reservoir between May 1995 and April 1996 were used to elucidate various aspects of the reproductive biology of Neosalanx pseudotaihuensis in this reservoir. The maximum gonadosomatic index (GSI) occurred in Apri
2000, 19(3).
Abstract:分子标记辅助选择技术以其对目标基因快速而精确的选择为回交育种提供了非常有效的工具。华中农业大学作物遗传改良实验室运用分子标记辅助的回交育种方法,将广谱高抗白叶枯病基因Za21迅速导入到杂交水稻的两个优良恢复系明灰63和6078之中,成功地完成了其抗生改良,并通过配组而达到了改良杂交水稻抗性的目的。本研究所运用的分子标记辅助的水稻回交育种程序是:通过一次杂交、二次回交改良杂交水稻抗性的目的。本研究所
Yuriy V Lobachev ) \ Elena A Vertikova ) Anatoly I Zavarzin ) \ Olga V Krupnova )
2000, 19(3).
Abstract:With the purpose of determining breeding value of six reduced height genes, field tests of the near isogenic lines set of the wheat variety Saratovskaya 29 differed in alleles of Rht genes were conducted. Rht genes influence on plant height, gr
Sun Dongfa\ Zhu Xutong\ Wan Zhengbin\ Cai Jun
2000, 19(3).
Abstract:用分期播种法和系X测验系法分别测定了4个主穗小穗数有25~29个的多小穗小麦品系的多小穗性的稳定性及其在杂种一代中的表现,结果表明,4个多小穗品系的主穗小穗数年度间变化不大,多小穗性表现稳定,在杂种一代中,4个 纱的多小穗性均存在一定的杂种优势,呈部分显性遗传,显性度因材料、组合不同有较大差异(0.0892~0.6000),其中SW94-30921、90-271为一般配合力较优的多小穗基因资源。
Oksana V Tkachenko ) Taisia I Djatchouk ) Yuriy V Lobachev )
2000, 19(3).
Abstract:The influence of Rht genes on androgenesis in vitro was studied. Lines differed in alleles of Rht genes ( Rht 1, Rht 3, and Rht 14 in the background of bread wheat Saratovskaya 29 and Rht 1, Rht 14 in durum wheat Charkovskay
Wang Xiaoping\ Xu Guanjun\ Wang Zhongxin
2000, 19(3).
Abstract:The kinetics of inducible antibacterial substance from yellow mealworm has been studied by determining the immune hemolymph's antibacterial activity. The results showed that when adults, pupae and larvae induced by E. coli , their hemolymph could show
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