Abstract:It was using photosynthesis 14CO2 trace technique in this study.Under-0.8MPa PEG stressed it carried out,omparing with isogenic different drought-resistant KTC86211 and ND7532 and Shaanhe No.6.The leaves relation permeability of plasma membrane increased

Abstract:The drought-resistsnce and high-productivity characters of winter wheat cultivar and their possible application were studied and discussed,using 8 winter wheat cultivar of Shaanxi as the indictores.Based on the relative water content,plasmel relative perm

Abstract:The pot experiments arranging 4 crops for 2 years show as follows:(1)Application of P fertilizer may improve the distribution which biomass transfers grain.Under the N,P stress,the application of N may add the ratio of no-ecological and ecological yields.

Abstract:The drought resistance of cron seedling stage of 5 varieties is studied in the dryland of north of Wei Rever.Morphological and water physoilogical indexes are studied.We observate and seudy leaf roll,basic leaf senescence,dry material accumlation,root mor

Abstract:Plant faces water deficit and varied environment how to sense and adjust morphonals of water deficit,responses,types of drought resistance and genetic fundation of drought resistance in the paper.

Abstract:It is simplely reviewed that crop water absortation,tromspiration and factors of affecting,the mechanism of stomatal regulation and quantitutive is analyzed.It is introduced that reverse flow of rate,optimization theory of stomatal regulation,non-uniform

Abstract:There are differental range,layer and concept of water in water use efficency,about WUE,photosynthese/transpiration is basic,WUE can be affected by the factors of two course,WUE is improved by the main way:the change of species and variety,fertilization,s

Abstract:We chose three species of nursery stocks.In pot experments under manual soil water content,study on their adaptability and water consumption properties.The results show that:Ulmus pumila L.is the best adaptability in three trees.Ailanthus altissima is mor

Abstract:Water consumption properties of nursery stocks are studies in differental water condition,the results show that:water consumption properties of two species of nursery stocks are similar.Only are two species different in several drought,but biomass have di

Abstract:It is reported that lipid,protein,amino acid,composition and content of C. micros phylla seeds in this paper.The trace minal element:Cu,Mn,Zn,Co,Mo,tannia and vitamin C are determined.We have dipped into seed processing and using.Provided the seed is biol

Abstract:In Huang Ling southern plateau,studied on the influence of fertilizer application on yield level of winter wheat under natural rainfall.The major resurts are as follows:1.There was a higher positive correlation between the actural yield and the rainfall,a

Abstract:Soil water trends,water use and water balance were analyzed in level furrow planting.Yield increased by level furrow is mail decreasement runoff and increasement soil water content.

Abstract:It is study that yield affected.by level furrow in different fertilization and density in the paper.Look for best fertilization and density for highest yield and pure income,and it is study that plant hight,leaf area, leaf area idex,transpiration,water co

Abstract:There were lectin in the outer layers of quinoa grain.The optimum pH of hemagglutiating activity of the crude quinoa lectin that PH from 1.0 to 9.0.The hemagglutinating activity of lectin in specifically inhibited by D-galactose,L-rhamnose.The inhibitory

Abstract:控制不同生育阶段的基因型对环境的敏感程度不同，不同播区的效应也呈现较大的差异。结果表明：同一品种春播时，基因与环境互作较高从效应因子看：北纬度效应＞海拔＞降雨量＞日照时数＞大于０℃积温＞经度。从效应方向看：海拔、秋播区北纬度、春播区降雨和日照时数呈正向效应；其它因子则呈负向效应。

Abstract:The statistic basic method of agricultural trail is analyzed. Statistic software-LNT and main function are simplified in the paper.The specify point of LNT was described.It is mentioned that agricultural statistic can be divided into 24 small type and 5 g

Abstract:油菜具有主序优势，主要表现在结角数上，在角粒数、千粒重及品质上也很显著。不同类型其优势强弱不同，白菜型和甘蓝型优势明显，芥菜型几乎不具有优势。在甘蓝型油菜中因品种、密度不同优势差异显著。增加密度可使主序在产量中的比例增加，在５万株／亩时可达７３．０５％．主序具有结角率高、成熟早等优点，通过选育优势强的品种，适当增加密度，合理调整布局，有望使油菜产量有较大幅度地提高

Abstract:The cross rape yield affected by F1 male sterility was analyzed from 1993 to 1995.The results show:the rate of F1 sterility(all and semi-sterility) is marked negatively bound up wich cross seed yield.Affected yield by F1 sterility plant main comes from se

Abstract:Peroxidase and catalase cutivity of 8 hybrid dominant were researched,the result show that peroxidase activity of 8 hybrid corn embryo's is between parent's activity and catalase of 6 hybird corn embryo's is between parent's activity,which is a relation w

Abstract:The ear traits of population Shaanzong No.5 were completely analysed.The results showed that hereditary basis was rich and the population had high productivity and all quantitive traits of ear tend to normal distribution.Improving grain yield of the popul

Abstract:通过野生种分离选用的平菇丰收一号，染色体数为９（ｎ＝９），菌丝生长速度比一般品种快２—３４ｃｍ／ｈ，平均投料０．５ｋｇ（块）产鲜菇０．６～２．５ｋｇ，个别单株重１０～２０ｋｇ左右，生物效率１００～１５０％，高者达２００％以上，是一种高产优质、适应性强的新菌种。

Abstract:Populus small old tree is fertilized N and P,different fertilization can increase photosynthesis rate,transpiration rate and leaf area,but WUE is clearly different,the more P is,the higher WUE is.Because P can increase photosynthesis rate.Transpiration is