1999, 18(1).
Abstract:The qualification site index table of Mao bamboo (Phyllostachys pubescens Mazel ex H. de Lehaie) in Xiaojia town, Huitong County was drawn up upon three principal site factors by means of qualification method. Precision checking showed tha
Yao Qihua , Liu Wuding , Chen Mingliang , Yang Li , Zhao Shujun , Xie Zhenchi
1999, 18(1).
Abstract:采用Claassen的养分吸收机理模型探讨了一定条件下玉米与大豆吸收磷的最佳施磷混土比例.研究结果表明:供试A土壤(壤质棕红壤)上大豆幼苗的施磷水平为15、30与60μg/g时的最佳施磷混土比例分别为25%、75%和100%;同样供试A土壤上, 玉米幼苗在上述3个施磷水平下的最佳施磷混土比例依次为25%、50%及75%,而在较粘重的B土壤(粘质棕红壤)上,其值相应为6.2%、12.5%、和25.0%.因此,玉米与大豆幼苗的最佳施磷混土比例均随施磷水平的提高而增大,而且当土壤的吸附固磷能力较强时,幼苗的最佳施磷混土比例则较低.
Wu Jiangsheng , Shi Shuwen , Zhou Yongming , Liu Houli
1999, 18(1).
Abstract:Hua Double 3(HD3) was successfully bred by using the methods of multiplecross and backcross with the parents of superior traits and microspore culture technique by Huazhong Agricultural University in 1998 It is the first B.napus cultivar bred by
Yan Zhun , Tian Zhihongmeng , Jinling
1999, 18(1).
Abstract:甘蓝是一种重要的蔬菜作物,利用小孢子培养方法可以获得纯合的双单倍体,加快甘蓝的育种进程以及提供遗传分析的材料。目前,有关甘蓝小孢子培养国内外报道较少,而且这些研究所用的材料多为结球甘蓝和青花菜等[1,2],而有关苤蓝的游离小孢子培养还未见报道。根据前...
Zhang Youde , Zhang Junzhi , Qin Tiancai , Huang Tao , Lu Yuzhao , Wang Zhonggang
1999, 18(1).
Abstract:Under natural condition, experiments on sextual propagation of Dioscorea zingiberensis Wright and its culture have been carried out. The result shows that the seedling propagated from seed has strong growth vigor. The average weight of per rhi
1999, 18(1).
Abstract:The mathematical model about the relation between 19 main agronomic measurers and yield has been worked out by means of experimental design of positive cross retative regression block with five factors and two times. Though the analysi
Wei Shanjun , Li Guoqing , Jiang Daohong , Wang Daoben
1999, 18(1).
Abstract:In this paper the antagonism of Talaromyces flavus against pathogens of cotton and the effect of glucose on its antagonistic activity were studied. The results showed that T.flavus could inhibit the radial growth of several sorts of soilborne
1999, 18(1).
Abstract:In this research,the toxicity of several mixtures,which were made by mixing up two original medicines (Baristin,Sulphur) according to different proportions,has been tested on F.gramineaurm andP.grisea in the laboratory respectively.The result
Niu Changying , Lei Chaoliang , Hu Cui
1999, 18(1).
Abstract:The alimentary canal of housefly (Musca domestica vicina Macquart) larvae was dissected with Nikon microscope. It includes three parts: the fore, mid , and hindgut. The white spherical transparent proventriculus locates at the end
Ou Xiaoming , Yu Shuying , Lin Xuemei , Liu Guanghui
1999, 18(1).
Abstract:Bioassays were applied to estimate the toxicities of some insecticides and their synergist against the third instar larvae of oriental armyworm, Mythimna separata Walker, in the laboratory. The results showed that phoxim was the most toxic towards
Zhai Liuxiang , Li Xundong , Xie Hui
1999, 18(1).
Abstract:Three species of Longidorus and Xiphidorus were detected from the soil around banana in Yunnan. L. intermedius was the first reported on banana, Xiphidorus was new record of plant parasitic nenatodes in China. Xiphidorus sp. characterized by
Zhou Yong , Wu Dan , Liu Fan , He Jizheng , Qiu Bingwen
1999, 18(1).
Abstract:The theory of ambiguous mathematics is coupld with Hierarchy Analysis to evaluate the water contamination in the East Lake based on RS and GIS. The results indicate the East Lake contamination has been grave, among which the pollution in the
Yao Qihua , Liu Wuding , Chen Mingliang , Yang Li , Zhao Shujun , Xie Zhenchi
1999, 18(1).
Abstract:This paper dealt with the most efficient P placement in the process of P uptaken by seedlings of maize and soybean using the mechanistic nutrient uptake model proposed by Claassen. The studies showed that: When the P ratio applie
1999, 18(1).
Abstract:This paper discusses the separation and purification of a kind of acidic polysaccharides HBA.The purity of the polysaccharides was determined by paper chromatography and DEAECellulose chromatography. The infrared spectrum of polysaccha
Guo Wanzhong , Mei Shuqi , Xu Ziqing , Wu jinying , Sun Hua
1999, 18(1).
Abstract:From canonical correlation analysis of nine variables of live traits and ten variables of carcass traits about ninety specimens of Hubei white pig, three canonical variables which determined the correlation between the two trai
Guo Dingzong , Zhou Shiqi , Yang Shijin
1999, 18(1).
Abstract:The primary productivity of phytoplankton was surveyed in Laojianghe Lake, Hubei Province from June, 1991 to April, 1993. The results showed that the gross primary productivity of phytoplankton in the water reached(O2) 1.56/gm-2d-1 in average du
Wang Weimin , Zhang Jiabo , Fan Qixue , Yang Ganrong , Zhou Yousheng
1999, 18(1).
Abstract:Although so far as the form is concerned, N. pseudotaihuensis is very similar to N. taihuensis, the results of this study showed that their viscid threads of egg cells, ratio of length of pneumatic duct to length of gas bladder, ratio of breadth o
Gong Shiyuan , Yi Chunbing , Liu Jun , Zhang Xunpu , Yang Xuefen , He Xugang
1999, 18(1).
Abstract:从卵细胞粘丝,鳔管长与鳔长比值,锶膜宽度与全长比值,产卵群体等4个方面对近太湖新银鱼和太湖新银鱼进行的初步比较,证明近太湖新银鱼与太湖新银鱼均为2个有效种。
Zheng Guangming , Wei Qingshan
1999, 18(1).
Abstract:Studies on the diet and growth of Anodonta woodiana pacifica (Heudeo) in South Lake, Wuhan, are curtied out and the results are reported as follows: Heude predominately feeds on green and blue algae, diatoms and detritus. It has, to some extent, a
Chen Xiaoxuan , Wu Zhixin , Luo Yuliang , Gao Haizhang , Chen Xiqun
1999, 18(1).
Abstract:In culture pond water, furazolidone was dispersed at different concentrations (0.2mg/L, 0.5mg/L and 1.0mg/L) respectively. The variations of aerobic and facultive anaerobic bacterial flora in water and the body surface mucus of grass carp
Ye Yuzhen , Huang Wenyu , Wu Chingjiang
1999, 18(1).
Abstract:The experiments were caried out by using two methods. First, the embryos in different developmental stages of the Chinese softshell turtle were treated by the exogenous male hormone methyl testosterone. Second, the young Chine
Zhao Zhenshan , Gao Guiqin , Sun Wenxue , Luo Yuliang , Cao Zhihua
1999, 18(1).
Abstract:The insemination cytology in hybridization between Paramisgurnus dabryanus () and Misgurnus anguillcaudatus() reveals that the sperm of M. anguillcandatns can enter the egg cytoplasm of P.dabryanus, then induce the emergence of the aster and f
Luo Yuliang , Wu Zhixin , Chen Xiaoxuan , Shen Xuehua
1999, 18(1).
Abstract:The histological study on spermary of Cherax quadricarinatus showed that the development of the male germ cell was divided to spermatogonia, primary spermatocyte, secondary spermatocyte, spermatid and spermatozoa. The development of the male ge
Wu Changyin , Ye Zhibiao , Li Hanxia
1999, 18(1).
Abstract:不结球白菜(Brasicacampestrissp.chinensisMakino)俗称小白菜、青菜、油菜,是我国南方大众化蔬菜。在蔬菜的周年生产、缓解淡季供应中具有重要作用。目前,国内有关利用不结球白菜子叶为外植体再生得到植株的报道并不多[1,2]...
Xu Youming , Chen Shiyin , Fang Wenbin
1999, 18(1).
Abstract:Fifteen trees of 17yearold slash pine growing in three different sites were collected. Variations of tracheid length (TL) and microfibril angle (MFA) in secondary layers of tracheid wall,as well as the relationship between TL and MFA wer
Zhou Zhixiang , Xu Yongrong , Wang Pengcheng
1999, 18(1).
Abstract:The changes of endogenous hormone contents in Chinese chestnut (Castanea mollissma Bl.) ovary around pollinating period were analyzed by means of controlled pollination. The results showed that pollination stimulated the increase in endogenous
1999, 18(1).
Abstract:The qualification site index table of Mao bamboo (Phy llostachys pubescens Mazel ex H. de Lehaie) in Xiaojia town, Huitong County was drawn up upon three principal site factors by means of qualification method. Precision checking showed that this table
1999, 18(1).
Abstract:Using PoleyWiener's theorem about onesided Laplace transform, we proved that the Carleman's inequality holds on the upper halfplane.
1999, 18(1).
Abstract:An exception of illconditioned linear system Ax=b, is pointed out in this paper.That is, for some b, the system does not show illconditions. Consequently it is pointed out that it is unadvisable to use such system to test the effectivieness o
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