Wang Jianhua , Xu Tong ,
1990(1).
Abstract:The experiment was designed for determining the percentage of electrolyte leakageof cotton cotyledon disc in suspension solution of the simulated acid rain by measuringthe ultraviolet absorption of the solutions. The procedures were different from what ha
Zheng Wei , Pi Meimei , Liu Wuding ,
1990(1).
Abstract:The effects of boron on the anatomical structure of Boehmenia nivea were studiedwith photomicroscope and scanning electron microscope. It was found that the pollensof boron-deficient plants failed to develop normally: the pollen grains were emptydue to sh
Lin Kejiao , Shen Weihua , Zhuang Zhenpeng ,
1990(1).
Abstract:The study is carried out with the L_9(3~4) orthogonal design. The statistical an-alyses suggest that the inoulated bacteria(B) is the first factor impacting the proteinlevel of the fermentative pig faeces, the secondary factor is the environmental te-mper
Wei Qingshan , Zhu Bangke , Luo Anhong , Zhang Shiping , Wang Weiming ,
1990(1).
Abstract:The work was conducted from Oct. 1985 to Aug. 1988. 38 species, including 33Unionids and 5 of Gastropods, were collected, in which 7 species of Unionids werefrom Ruhe River outside the reservior. In the area of 6667 hectare that is submerged all the year
1990(1).
Abstract:The method of Fuzzy multiobjective programming was introduced to the study ofanimal breeding plan. The Fuzzy membership function was established after analyzinggenetic gain and testing cost functions for animal progeny test. The optimum decisionproblem of
Peng Zhongzhen , Cao Shengyan , Liu Zhifu ,
1990(1).
Abstract:The breeding value of 11 Hubei White Line IV boars in a closed random-matingpopulation was estimated with first parity litter size born records on 206 daughterswhich spread over six herds and farrowed in the spring and autumn of 1987. A mixedlinear model
Cao Yanzhen , Li Fudi ,
1990(1)-50,T001.
Abstract:Nodule pieces of peanut were used to induce callus culture. The frequencies ofcallus formation from explant were 26.5-56.6% on CLS medium. Calli from peanutnodule have survived for many transfers. Upon induction the calli differentiated intorootlets on me
Wu Chunren , Liu Houli ,
1990(1)-58,T002.
Abstract:Direct entry of the intact plant surface and indirect penetration through internaltissue of guard cells in the stomate of the host (Brassica napus) were achieved byhyphae of Sclerotinia sclerotiorum. Two types of appressoria, single-cell appressoriumfrom
Zhang Jinfa , Sun Jizhong , Liu Jinlan ,
1990(1).
Abstract:采用两种遗传背景的近等基因系(有、无蜜腺),在田间条件下,比较二者间的光合速率,叶绿素含量、单株叶面积、比叶重和干物重。结果表明,有、无蜜腺近等基因系间的上述光合性能没有显著的差异。
Lei Zhaoliang , Zong Liangbin , Zhong Changzhen , Pang Juncheng ,
1990(1).
Abstract:实验室饲养观察结果表明,在15-35℃温度范围内,随温度升高,微小花蝽的发育速率加快,成虫寿命缩短,在25℃下的世代存活率最高。根据实验数据计算出该虫的卵期发育起点温度为13.6℃,有效积温为1=55.15日.度;若虫期发育起点温度为8.0℃,有效积温为270.1日.度。组建了25℃和30℃两种温度下的该虫的实验种群生命表。
Yang Xuifen , Zong Liangbing ,
1990(1).
Abstract:Beetles (Harmonia axyridis (Pallas)) of different wing color patterns were compa-red electrophoretically for isozymes of esterase (Est), malate dehydrogenase (Mdh)and peroxidase (Pox), Bugs at different developmental stages were also compared forisozymes
Dong Yuanyan , Wang Shuyu , Deng Youjun , Li Xueyuan ,
1990(1).
Abstract:Sulfate adsorption properties of soils with variable charge in central China were stu-died. Purplish soil did not adsorpt sulfate, because there was not extractive acid. Mi-neral analysis showed that illite was the main clay minerals in purplish soil. In
1990(1).
Abstract:研究了湖北省黄棕壤等10种主要旱地土壤的水分物理性质。结果表明:这10种土壤的脱水曲线适于用指数式、幂函数和直线式三种模型表达。土壤的持水能力以红壤较强,而以质地偏砂的潮土和紫色土较弱。10种土壤的各种有效含水量,以质地偏砂的潮土最高,质地粘重的红壤最低。这些土壤的水分性质与土壤的质地、总表面积及阳离子交换量等有密切关系。
1990(1).
Abstract:Through the observation of voluntary intake and voluntary drinking under diffe-rent levels of nutrition and environmental temperature on chick(320), results showed:there was high effect on Chick related to different 1evels of metabolizable energy offood.
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