试验设计

One-year-old seedlings of Chinese Redbud were grown in a pot with varying soil water levels, soil salt levels and intercross stress to determine photosynthetic characteristics.

应用盆栽试验方法，采用完全随机试验设计，研究了1年生紫荆实生苗在不同土壤盐分和水分及交叉胁迫下的光合特性。

Four 20kg six-month old goats with permanent remen cannula were used to study the effect of three kinds of urease inhibitors acetohydroxamic acid, hydroquinone, yucca extract on nitrogen metabolism, nutrient degradability in rumen and nutrient digestibility.

本研究由4个试验组成，选用安装永久瘘管的6月龄山羊4只，采用4×4拉丁方试验设计，分别饲喂对照组饲粮、乙酰氧肟酸25mg／kg饲粮、丝兰皂甙36mg／kg饲粮、对苯二酚40mg／kg饲粮。

Experiment 2: To choose the appropriate dosage of tannins for the diets in sheep, three High Mountain Fine-wool wethers fitted with permanent rumen fistula were used and the 3 ×3 Latin square design were adopted to study the effects of tannins in Sainfoin on protein protection of the diets, measured items included the rumen metabolic parameters, the appatent digestion of all nutrients and the appatent retention of N in sheep.

试验二：选用3 只安装有永久性瘤胃瘘管的高山细毛羊羯羊，采用3×3 无重复拉丁方试验设计，研究红豆草中单宁对饲粮蛋白质保护的效果，测定项目有绵羊瘤胃代谢参数和饲粮各种养分的消化率与氮存留率，以期初步筛选出绵羊饲粮中适宜的单宁用量，为提高蛋白质饲料的有效利用提供依据。

The investigation of foreign gene delivery was performed by exposing its sternocleidomastoid muscle similar to clinic operation.The orthogonal design test was available after selection of close-related clinic factor.

通过手术切开，暴露兔胸锁乳突肌，模拟临床操作，进行分子外科注射术转染外源基因的试验，同时利用正交试验设计分析X-gal染色切片。

Using orthogonal test design to optimal the surface activator components and its ratio, analysis each factors on the effect of the suspensibility, hierarchical rate, disparity, centrifugal stability, then determined the major technical index's: NNO has the most important influence on suspensibility, NNO on hierarchical rate, XG on disparity and XG on centrifugal stability.

本试验从10种润湿分散剂中筛选出农乳601#、md、ms及其用量，利用正交试验设计对表面活性剂组分及其配比进行了优化，分析了各个因素对悬浮率、分层率、分散性、离心稳定性的影响，并确定了制剂的主要技术指标：NNO对悬浮率的影响对大，NNO对分层率的影响最大，XG对分散性的影响最大，XG对离心稳定性的影响最大。

The results from an example showed that the unbiased estimate of error variance could be obtained so that polygenic variance and polygenic heritability could not be underestimated. Moreover, the AIC values by using the average of two replications were less than that by using the observations of a replication.

在试验设计为重复内分组随机区组设计时，通过甘蓝型油菜初花期的遗传分析表明：这种方案的试验误差方差估计值无偏性好，可避免多基因方差和多基因遗传率被低估；重复观测值平均数的分离分析的AIC值低于利用单一重复资料的AIC值。

Effects of different fruit-retaining reagents upon fruiting on Yunan seedless wampee;2. To probe into the seedless reason of fruit of the Linyuan 1 seedless wampee ,the Linyuan 1 seedless wampee is observed at its flower organs, pollen quantity and degree of satiation, and germination, and compared with the seed wampee.

为了探讨林院 1号无核黄皮果实无籽的原因，于 1992年～ 2 0 0 0年在广西大学林学院观察林院 1号无核黄皮的花器、花粉数量及饱满程度、花粉萌发情况，并和有核黄皮比较；采用随机区组试验设计，对林院 1号进行自然授粉、去雄不授粉套袋、去雄后用有核黄皮花粉授粉并套袋的授粉试验；观察林院 1号的授粉受精过程。

The working drawing of the system is designed according to the similar relation.The loading systems of the free fi...

试验设计确定了试验的基本原则和实现方案，为进一步的研究奠定了基础。

The trial was designed by orthogonal L9 (3^4) of N, P, K nutrients and three levels respectively in this study. The effects of these nutrients and their levels on growth of seedling height and ground diameter of Agathis dammara were studied and the best fertilization method was determined. The results showed that the effects of high significant differences among different fertilization treatments through 1-8 months.

采用正交试验设计L9(3^4)，通过植物生长所需要的大量营养元素N、P、K三因素三水平及其不同配比的施肥试验，分析了各元素及其水平对贝壳杉苗高和地径生长的影响，确定了贝壳杉苗期生长的最佳施肥方案。

The experiment two wasundertaken to examine the effect of different enzyme preparation levels on growthperformance, nutrient digestibility, intestinal morphology, serum biochemical parameters,physico-chemical property and chemical digestion of intestine digesta, endogenousdigestive enzyme and caecal microbial population for gosling, the diet with stuff of highfiber content was added 0, 0.2% and 0.4% enzyme preparation for the experimentalgroups.

试验二采用单因素试验设计，研究含高纤维原料的日粮中添加不同酶制剂水平(0、0.2％、0.4％)对雏鹅生长性能、养分消化率、消化道组织形态、血清指标、肠道食糜理化性质和化学性消化、机体内源性消化酶及盲肠微生物等的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。