品种间的

In the field condition, PAM-2100 chlorophyll fluorometer was used to observe chlorophyll fluorescence kinetics parameters of 18 winter wheat varieties in different growth stages, the correlations of 14 fluorescence parameters such as Fo were analyzed. Fluorescence characteristics of winter wheat varieties were comprehensive evaluated by the methods of factor analysis and cluster analysis.

在大田条件下应用PAM-2100型叶绿素荧光仪对18个冬小麦品种叶绿素荧光动力学参数进行了不同生育期的观测，分析冬小麦叶绿素荧光参数Fo等14个荧光参数间的相关关系，利用因子分析和聚类分析对其冬小麦品种荧光特性进行综合评价。

Results show that sucrose medium was the best and can see pollen tubes sprout directly;A significant difference in pollen vitality was found among various varieties,Among the 68 varieties the pollens of Longiflorum Hybrids lily was highest;The pollens of tiger lily almost lose vitality.

结果表明：以蔗糖培养基培养法效果最好，并能直接观察到花粉管发育状况；百合不同品种间花粉生活力存在极显著差异，在所测定的68个品种中以麝香系百合的花粉活力为最高；卷丹花粉活力最低，几乎为零。

Genotypic variation of Al-tolerance and corresponded mechanism in 6 cultivars of pigeon pea were investigated in present study.

以6个品种的木豆为材料，探讨了木豆品种间耐铝性的基因型差异及其机制。

Dry matter remobilization quantity, dry matter remobilization rate and remobilization quantity contribution to grain of each organ are different dramatically for the different genotypes and the N application levels.

不论施氮与否，各器官干物质量在不同品种间差异显著，施氮能明显提高各器官的干物质量，且其提高幅度因品种不同而明显差异。

Compare on the cultivars of Zizania caduciflora: Choosing different types cultivars of Zizania caduciflora for different planting situations, the reap time, the yield, the quality of seven cultivars of Zizania caduciflora which are numbered 0501 to 0507 are compared.

不同品种间茭白的差异比较：选用0501～0507号茭白进行品比试验，对采收期、产量、品质等方面进行测定比较，以求选出适宜不同类型栽培的品种。

In this research suitable wheat variety was systemic selectedfrom 15 different varieties and rules between wheat properties , wheat maltingparameters and wheat malts properties were discussed .

本研究对15 个小麦品种进行了适合制麦芽品种的系统筛选，研究探讨原小麦指标，制麦工艺参数与麦芽指标间的规律性，主要结论如下

The PD excretion in urine changes and it is not universal in different breeds. So it is exactly in need of kinds of models about different ruminants.

由于尿中嘌呤衍生物排出量受动物品种的影响很大，不同品种间无通用性，所以现有的研究成果不能用于中国品种牛，更难以使该方法应用于生产。

The results indicated that MDA of both the radicles and cotyledons increased extremely significantly under the low and the high temperature treatments compared with the control, whereas the SOD activities decreased.

结果表明：温度胁迫使胚根中TSP含量均较常温显著或极显著降低，子叶中的TSP含量在低温处理下极显著高于对照，而在高温下与之相反；温度胁迫下，各豇豆品种胚根和子叶中MDA含量均较显著或极显著高于对照；SOD活性变化与之相反，但品种间有差异。

Indica variety ZYQ8 is an important genetic resource resistant to rice blast disease in rice breeding in North China.in this study,resistance identification of the populations of F1,F2,DH and B1F1of the crosses of ZYQ8×Jingxi17 (JX17) and ZYQ8×Lijiangxintuanheigu was carried out by using a Chinese differential strainZH10-8-14 from North China and a Japanese differential strain Ken54-04 from Japan and the results demonstrated that ZYQ8 had one dominant major gene Pi-zh which had been reported by Zhu L.H., et al., The results from experiments in which the F2 populations of ZYQ8×nine different varieties with known resistant genes were inoculated with strain Ken54-04 indicated that the gene Pi-zh was a new gene and non-allelic to nine known gene loci,namely Pi-i,Pi-km,Pi-z,Pi-ta,Pi-ta2,Pi-zt,Pi-kp,Pi-b and Pi-t.

籼稻品种窄叶青8号是我国北方稻区水稻育种上重要的稻瘟病抗源之一。本文利用我国北方稻区的代表菌系中10-8-14和日本的代表菌系研54-04，对窄叶青8号与感病品种京系17号和丽江新团黑谷的杂交F1、F2、DH和B1F1群体进行抗病性鉴定。根据抗病性的分离，确认窄叶青8号的抗性由1对显性主效基因，即朱立煌等报道的Pi-zh基因控制。利用菌系研54-04接种窄叶青8号与9个具有已知抗病基因的鉴别品种杂交的F2群体，各群体都表现二基因的独立遗传，证明Pi-zh基因与Pi-i、Pi-km|、Pi-z、Pi-ta、Pi-taz、Pi-zt、Pi-kp、Pi-b和Pi-t等9个已知抗病基因间存在非等位关系，是新的抗稻瘟病基因。

The relationship between stalk mechanical characteristics and planting density fitted a exponential curve y=ae(superscript bx significantly.

结果表明，随着群体密度的增加，茎秆的压碎强度和外皮穿刺强度以及节间直径、干重、干物质百分比、单位茎长干物质重显著降低，而节间长度有所增加，以上这些变化在供试品种间存在着明显的差异；茎秆抗倒力学性状随群体密度呈指数曲线y=ae

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。