Chen Daqin , Li Zebing ,
1987(2).
Abstract:约为自然光强1/3-1/4的弱光分别作用于威优64和测64-7的花粉母细胞减数分裂至抽穗期(I期)和抽穗至灌浆乳熟前期(Ⅱ期)各15天,结果表明:两期弱光均可使根系活力、T/R比、光能利用率.干物质积累、灌浆速度和产量明显降低,但却使叶绿素含量下降、枝梗与颖花退化数增加、垩白度增大,至于叶面积指数则是在I期下降、在Ⅱ期上升。对于产量形成,I期主要限制“库”,Ⅱ期弱光主要限制“源”。相比之下,威优64对弱光的影响更敏感,但其优势则并未丧失。
Yang Jikun , Yang Ding ,
1987(2).
Abstract:大蚊科(Tipulidae)的短柄大蚊属(Nephrotoma)为常见的黄色中型种,中胸背板有三条褐色纵斑;翅透明具明显的翅痣,径分脉(Rs)很短为主要识别特征、故中名称之为短柄大蚊。此属相当大,我国已知六十来种,湖北省过去缺少调查。现根据我们1984年采自磨山、九宫山、武当山及神农架等地的标本,记述两个新种和七个湖北省的新记录种。新种的
Zhu Ling ,
1987(2).
Abstract:The sense organs on the antennae of the honeybee have been investigated byscanning electron microscope(SEM). The function and the kind of some sense organsare distinguished by comparing the distribution of various sensilla on the antennae of theworker bee
Peng Shu''''ang , Zhang Huizhi ,
1987(2).
Abstract:采用花粉剥离新技术,用扫描电镜观察枇杷四个品系的花粉外壁结构和表面特征。枇杷花粉多为近球形,表面具有长条形雕纹,萌发孔为三孔沟复合结构;花粉外壁结构层次完备,其中外壁外层包括覆盖层、柱状层和基足层;外壁内层外表面与外壁外层外表面具有不同的纹饰和孔穴的分布,并且种类不同,纹饰和孔穴的分布也不同;外壁内层内表面具有较萌发孔孔径为小的孔穴存在。
1987(2).
Abstract:以原产温带的日本晴三粳稻品种和原产热带的IR8两籼稻品种为材料,观察了16—30℃恒温对其生长和物质生产的影响。结果:在试验温度范围内,各个品种的植株均随温度升高而增高;但两类品种的株高感温指数有差异,IR8两品种的较低,日本晴三品种的较高。IR8两品种在30℃下分蘖数最大,日本晴三品种则是在25℃下,较有利于它们的分蘖。IR8两品种的CGR和NAR,以30℃下最大,日本晴三品种则以25℃下的最大,干物质生产量亦呈此趋势。所有供试品种都是在25℃下出叶最少,出叶间隔天数则以在20℃下为最快。
1987(2).
Abstract:The stability of Upland cotton (Gossypium hirsutum L.) was studied forlint yield,boll number/plant,boll weight,lint percentage,seed index,lint index,plantheight,sympodial branches/plant,node of the first sympodial branch and maturing period,following the
Xu Xianying , Li Rongwei , Xu Changhuei ,
1987(2).
Abstract:In this essay, we studied the genetic distances of seven quantitativecharacters among fifty barley stocks, We selected thirteen parents based on the results ofthe principal component analysis. According to the genetic distances, the fifty stocks wereplace
Zeng Xianshun , Xu Guangjun , Zang Guo''''an , Liu Hanyu ,
1987(2).
Abstract:Common reed caseworm, sclerocona acutella (Eveersmann) is a kind leaf-eating insect-pest. It damages the leaves at the top of the phragmites communis so thatthe rolled pockets are formed in the leaves. There are three generations per year inHabei province
Li Shijun , He Tie , Zhu Guomei , Xiong Hengduo ,
1987(2).
Abstract:The influence of three fertilizer structures on the status of nitrogen,phosphorus and potassium in paddy soil derived from red earth was studied. Thecontents of bio-available N, amino acid N, amino acid, quick-acting phosphorus andlabile organic phosphoru
Yang Zhihui , Dung wanshie , Yang Changju , wen Biran , wang xiqiao ,
1987(2).
Abstract:This paper reports 20 insect pests of tobacco store belonging to 4 orders,13 families. According to the number and degree of infestation they cause to stored tobaccoLasioderma serricorne, Ahasverus advena and Ephestia elutella are considered as maininsect
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