水稻香亭病(Balansia oryzae-sativae Hashioka)--一种影响杂交水稻种子出口的病害

水稻香亭病（Balansia oryzae-sativae Hashioka）,又被称为水稻＂一柱香＂病（Ephelis oryzae Sydow）,是当前影响杂交水稻种子出口的一种真菌病害.从该病原菌的命名、分布、寄主、生物学特性、危害症状、经济损失、检测方法和防治等方面进行了概述.     

酸碱对低活力苜蓿种子萌发及初期生长的影响

以H2SO4，HCl，HNO3及NaOH为激活荆，研究其对低活力苜蓿种子萌发及初期生长产生的影响。结果表明：不同酸碱处理及其时间不同，效果差异明显，但各处理在不同程度上均对苜蓿种子萌发和初期生长有促进作用；尤其是短时间HNO3处理，对激发苜蓿种子活力效果最佳。     

浅谈我国的马鹿饲养业及发展目标

综述了我国北方 14省市自治区形成我国马鹿饲养业的人工选育品种及地方品种等 10种马鹿的数量分布、饲养方式、经营体制、繁育体系、饲养模式及其数量规模 ;典型的 6种马鹿的突出优良性状及品质评定 ;饲养马鹿产品的国内外市场及发展趋势 ;并从 6个方面阐述了中国马鹿饲养业的发展目标。     

不同基质和肥量配比对番茄幼苗及前期产量的影响

分析了不同基质和肥量配比对番茄幼苗和前期产量的影响，结果表明，废棉籽壳能代替泥炭基质作为番茄基质育苗，施用半量的底肥比全生的底肥效果略好。     

我国饲料工业发展概况

本文对我国饲料工业发展现状、存在问题、措施及对策三个方面进行了综述。     

Landscape change under indirect effects of human use: the Savanna of Central Chile

The Chilean Intermediate Depression to the north of Santiago has experienced a physiognomical transformation from a Prosopis chilensis woodland to an Acacia caven savanna. Today P. chilensis trees are scarce and belong mostly to the larger size classes. By contrast A. caven seems to reproduce frequently and its populations consist of individuals of all size classes. In this paper we document these changes and report the results of tests aimed at determining the causes of these physiognomical changes. We found that livestock, leporids, introduced Mediterranean forbs and agriculture account for differences in seed dispersal and survival of A. caven and P. chilensis, which can explain the documented changes in the Chilean landscape.     

青饲牧草地化学除草试验报告

对６种青饲牧草用７种除草剂进行除草试验。证明播后苗前墨西哥类玉米用４０％阿特拉津胶悬剂０．９０ｋｇ（ａｉ）／ｈｍ＾２；Ｍ－８１Ｅ饲用高粱与串叶松香草适宜用６０％丁草胺乳油０．９０ｋｇ（ａｉ）／ｈｍ＾２；苏丹草适宜用６０％丁草胺乳油０．９０ｋｇ９ａｉ）／ｈｍ＾２与２５％绿麦隆可湿性粉剂０．９４ｋｇ（ａｉ）／ｈｍ＾２，紫苏用１２％恶草灵乳油０．２７ｋｇ（ａｉ）／ｈｍ＾２与８４％ｃｈｉｎｃｈ乳油１．８９     

24份加拿大牧草品种引种试验

1986年我们从加拿大碧青种子公司引进牧草种子24份,其中豆科7份,禾本科17份,于当年秋播。从3年试种结果看,Glory苜蓿、Minto苜蓿、Algonquin苜蓿在北京种植,无论是产草量、种子产量、草质还是适应性均表现良好。Leo百脉根在北京可安全越冬,其特点是夏季生长繁茂,草质好,耐牧,耐践踏。Orbit长穗冰草、Chief 中间冰草、阿尔泰野麦草表现为抗寒耐旱,产草量高,但要适时利用,否则会降低饲用价值。俄罗斯野麦草、Nordan沙生冰草、草地看麦娘、猫尾草产草量一般,但草质好,春季返青早,枯黄期晚,可在京郊西部山区种植。无芒雀麦(2份)、鸭茅、牛尾草、(艹鹝)草(3份)均表现为适应性好,草质优,产草量高,是较好的禾本科牧草。白三叶、草地早熟禾可做为地被植物和草坪草。     

造纸工业必须走林纸一体化与可持续发展道路

通过对我国造纸工业面临的现状和存在问题的调研、分析，并比较国内外造纸工业发展的现状，认为国内木材市场已经进入供不应求的紧缺阶段，而从国外进口木材，增加了企业的经营成本，又受市场的制约。所以企业通过自身营造集生态效益和经济效益为一体的原料林，是解决目前造纸工业瓶颈问题的现实而有效的途径。因此，造纸工业必须走林纸一体化与可持续发展的道路。     

Photosynthate Unloading from Seed Coats of Phaseolus vulgaris L. an Attempt to Define Conditions Required for Stimulation by Abscisic Acid and Benzylamino Purine

The instablity of the stimulation of photosynthate unloading from seed coats of Phaseolus vulgaris by abscisic acid (ABA ) and benzylamino purine ( BAP ) was studied in terms of experimental conditions. ABA stimulated photosynthate unloading at pH 6 and pH 8 without close dependence upon pH. ABA at a concentration range of 10-5-10-4 mol/L displayed stimulatory effect. However, BAP revealed no effect at a concentration range of 10-6-10-4 mol/L. Experiments designed with different transport time of 14C-photosynthate indicated that ABA might act at the plasma membrane of the unloading cells. Reducing endogenous ABA level by diminishing leaf area did not facilitate the manifestation of exogenous ABA function. Potassium ion stimulated photosynthate unloading from seed coats with highest promotion at 100 mmol/L K . However, no dependence of ABA stimulation of photosynthate unloading on K was found.