2000, 19(6).
Abstract:More than 60 characters of 6121 of Yunnan rice and good germplasm were studied by county or automomous prefecture to find out their distribution law of diversity and density.The results show as follow:(1) Yunnan Province is the largest center of ecologica
2000, 19(6).
Abstract:以主穗小数在25~30个的二个普通小麦多小穗品系85DH5015、SW94-30921与三个普通小麦品种(系)组配成6个组合的P1、P2、F1、F2、B1、B2为材料,用世代均值法分析了6个状的遗传模型并估算了各类基因效应值,比较分析了两个不同来源多小穗小麦品系六个性状各类基因效应的异同及其相对重要性。结果表明:六个性状都符合加性-显性-上位性模型,加性效应对两个多小穗小麦品系各性状的遗传有重要作
Nie Yichun Zuo Kaijing Zhang Xianlong Feng Chunda
2000, 19(6).
Abstract:选用80个随机引物,对栽培种陆地棉、野生种雷蒙德氏棉、它们的杂种一代以及从回交代中选育的9个种质系进行了RAPD指纹图谱和遗传相似性研究。结果表明:29个随机引物扩增的带具多态性,并能将两个不同棉种、F1和种质系相互间加以区别。在9个种系中分别检测到5~9条(3.7%~5.3%)带与野生种相同的特异带,大多数带与陆地棉回交亲本一致。野生种与种质系间的相似系数为0.388~0.479,陆地棉亲本与种
Yang Guangsheng Qu Bo Li Haibo Fu Tingdong
2000, 19(6).
Abstract:花器形态和花药发育的解剖学观察表明 ,RGCMS S45A和RGCMS 117A中表现波里马细胞质雄性不育 (polCMS)的植株 ,其花器形态和花药发育的解剖学特点与polCMS相同 ,即在高温条件下 ,花瓣较小 ,表现彻底不育 ,无花粉囊的分化 ;在低温条件下 ,花瓣变大 ,表现部分雄性不育 ,可分化出 1~ 4个花粉囊 ,并产生一定数量可育花粉。表现核质不育 (RGCMS)的植株 ,在高温条件下 ,花瓣小 ,表现彻底的polCMS不育 ,无花粉囊的分化 ;在低温条件下 ,花瓣变大 ,也表现彻底雄性不育 ,具有核、质不育的共同特点 ,每个花药可分化出 1~ 4个花粉囊 ,但无可育花粉 ,其雄性败育时期和特点与S45A和 117A相同。
Jiang Li ) Liu Yixin ) Zhang Rongxian )
2000, 19(6).
Abstract:研究了烟叶成熟衰老过程中光合电子传递和有关合酶活性的变化规律。结果表明,随着烟叶的成熟衰老,烟叶的光系统Ⅰ(PSⅠ)、光系统Ⅱ(PSⅡ)及全电子传递活性、RuBP羧化酶(RuBPCase)和碳酸酐酶(CA)活性均呈下降趋势,其中PSⅡ电子传递活性和RuBPCase初始活性在打项后下降迅速。表明烟叶在成熟衰老过程中,光合速率争剧下降、光合作用活性减弱与其内部光合机构和光合酶变化密切相关。
Xu Hanhong ) Zhang Zhixiang ) Cheng Dongmei ) Wu Yulin ) Fan Junfa )
2000, 19(6).
Abstract:通过对19种茼蒿素类似物进行拒食活性筛选,研究了茼蒿素类似物对斜纹夜蛾幼虫的拒食活性、毒杀活性及对斜纹夜蛾幼虫体重的影响,结果表明:20号和12号化合物的拒食活性最高。12号和20号化合物对斜纹夜蛾3龄幼虫的LC50值分别为945.25μg/ml和1295.76μg/ml;12号化合物对斜纹夜蛾3龄幼虫非选择性AFC50值为403.83μg/ml,对斜纹夜蛾4龄幼虫选择性AFC50值为340.39
2000, 19(6).
Abstract:The resistance to Rice Sheath Blight caused by Rhizoctonia solani in 17 early rice cultivars were compared in the experimental plots in Gong'an of Hubei Province,Huarong of Hunan Province and Ruizhong. of Jiangxi Province. The results showed that Jiay
2000, 19(6).
Abstract:采用土培和液培试验研究了不同小白菜品种株吸锌量的差异及原因。结果表明,不同小白菜品种从土壤介质中累积吸锌能力差异显著,这种差异是由于品种间根系形态特征的不同造成的。在低锌条件下,小白菜植株吸锌量与根系数显著正相关。
Chen Jiazhou ) Chen Mingliang ) He Yuanqiu )
2000, 19(6).
Abstract:The items of water balance of rice were obtained in typical red soil area of mid subtropics by experiments in testing pits. Results showed that the evapotranspiration of first crop rice ranged from 368.6 mm to 415.4 mm under different soil water condit
Huang Li Cai Chongfa Ding Shuwen Zhang Guangyuan
2000, 19(6).
Abstract:The contents of organic matter in purple soil are low in the Three Gorges Reservoir Region. After the contour hedgerow had been planted for five years, the contents of soil organic matter increased prominently. The HA/FA of humic acids added, the qual
Hu Chengxiao ) Wang Yunhua ) Wei Wenxue ) Li Zongtang ) He Hua ) Tan Qiling ) Chen Hao )
2000, 19(6).
Abstract:Under pot culture experiment conditions, when the soil available molybdenum content was very low, only a little molybdenum was accumulated by the wheat grains and most of it was distributed in the vegetative organ of the wheat; but the amount of molybdenu
Lin Fangcan Wang Zhongwen Xiong Zaiming Dai Jianghong Min Jiashun
2000, 19(6).
Abstract:由于没胡明确的形态差异,香菇的3种不亲和交配反应即A=B=,A=B≠和A≠B=难以互相区别。本研究将OWE-SOJ技术及核迁移试验用于香菇的交配型分析。结果OWE-SOJ技术,可以观察到3种不同的菌落形态:由A≠B≠配对形成的具锁状联合的绒毛状菌落,A≠B=配对形成的无锁状联合的栅栏型菌落及由A=B=或A=B≠配对形成的无锁状联合的绒毛状菌落。通过一个附加的常规交配试验,A=B=和A=B≠反应易于
2000, 19(6).
Abstract:在中华鳖(Pelodiscus sinensis)稚鳖饲料中添加定量的甘草素,投喂经福尔马林灭活嗜水气单胞菌(FKC)免疫接种的中华鳖稚鳖28d后,通过测定增重量,血液比容值,血清中补体价,抗体价,溶菌酶活性,GOT、GPT值,白细胞的吞噬活性以及活菌攻毒的方法,探讨了口服甘草素对中华鳖稚鳖抗嗜水气单胞菌感染的作用。结果表明,在中华鳖稚鳖饲料中添加35mg/kg.d的甘草素,不仅具有提高供试中华鳖
Luo Xiaochun Li Zhengqiu Wang Jinhu Zhang Qiya
2000, 19(6).
Abstract:Grass carp was immunized with BSA and grass carp haemorrhage virus (GCHV), and the humoral immune responses to these two different antigen were compared. Antibody was detected after 14 days and reached the highest titer after 28 days in BSA immunized fish
2000, 19(6).
Abstract:研究了4个组合的柑桔体细胞杂种及其以应亲本的春梢叶片净光合速率(Pn)及其与光照强度(PAR)及叶片温度(tL)的关系。结果表明,柑桔体细胞杂种的光合速率低于对应亲本。体细胞杂种的光合速率最大值(Pmax)和光合速率日均较亲本小;体细胞杂种的光饱和点较亲本低,光补偿点高于亲本。田间自然生态条件下,体细胞杂种的光合最适温介于双亲之间,光合最适温对应的最大光合速率小于双亲。染色体倍性增加没有导致体细胞
Ni Dejiang Chen Yuqiong Yuan Fangting Zhou Jirong
2000, 19(6).
Abstract:对30型滚筒连续杀青机的杀青温度和时间进行了研究。结果表明:杀青温度和时间对杀青叶品质有较大影响;在温度低于160℃时杀青,随温度的升高,茶叶茶多酚和氨基酸含量增加,可溶性糖和叶绿素含量下降;随杀青时间的延长,氨其酸和可溶性糖含量呈上升趋势,而叶绿素和茶多酚则呈下降之势;当杀青温度超过160℃时杀青在任一时间内茶叶都会焦变。30型滚筒连续杀青机杀青的适宜温度是140℃,时间为35~55s。
2000, 19(6).
Abstract:采用聚丙烯酰胺不连续垂直板电泳系统,测定了武汉地区33个桂花(Osmanthus fragrans Lour.)品种的过氧化物酶、酯酶、α-淀粉酶、超氧化物歧化酶及苹果酸脱氢酶同工酶酶谱。结果表明,所有供试品种在五个同工酶系统中均有桂花物种的共同特征谱带,同时又蕴含着较丰富的多态性,从而根据酶谱表型可以有效地鉴定桂花品种。利用类平均法(UPGMA)进行系统聚类,将33个品种分为二个大类群:秋桂类和
Li Hongmin ) Huang Renquan ) Feng Xinmei ) Cui Yantang )
2000, 19(6).
Abstract:Soy sauce was prepared by fermentation without salt. The content of isoflavones in soybean, soy sauce mash and soy sauce was determined by RHPLC respectively. The extraction technology of isoflavones from soy sauce was studied. The results showed that
2000, 19(6).
Abstract:通过矩阵的拉直运算,将推广的生长曲线模型化为经典的线性模型的情形。在误差方差阵V≥0的条件下,对未知参数矩阵行民著名统计学家Rao相类似的结果,为生物学中生长曲线模型在奇异情形下的研究奠定了理论基础。
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