种子植物

To discuss the relationship between the allelopathy of native plants in Guizhou and seed germination of Eupatorium adenophorum, the method of culture dishes with filter paper was used to research effects of 10 kinds of leaf aqueous extract on seed germination of Eupatorium adenophorum.

为探讨贵州本地植物的化感作用与紫茎泽兰种子萌发之间的关系，采用培养皿滤纸法，研究了10种供体植物的叶片浸提液对紫茎泽兰种子萌发的影响。

Remember, whether its grass seeds, tomato seeds or flax seed, the plant will only be as good as the original seed.

请记住，不论其草种子，番茄种子或亚麻种子，植物才会不如原来的种子。

The Council supervises the work of subject matter standing committees including: bacteriology; biochemistry, physiology, and molecular biology; biological control; chemical control; diagnosticians; diseases of ornamental plants and turf grasses, environmental quality and plant health; epidemiology; exobiology and space phytopathology; forest pathology; genetics; integrated pest management; mycology; mycorrhizae; nematology; plant disease detection; plant disease losses; postharvest pathology and mycotoxicology; seed pathology; soil microbiology and root diseases; tropical plant pathology and virology.

该协会主要研究范围涉及细菌学、生物化学、生理学、分子生物学、生物控制学；化学控制学；诊断学；观赏植物和草皮病理、环境质量与植物健康；流行病学；外空生物学和空间植物病理学；森林病理学；遗传学；病虫害综合管理；真菌学；线虫学；植物疾病诊断；植物病害损失；收割期后的植物病理学和真菌毒理学；种子病理学；土壤微生物学和植物根病理；热带植物病理学与滤过性微生物学等。

The results showed: the major causes were obstacle of seed vessel, seed embryo dormancy and post-maturation; the major methods were treatments of hypothermal stratification and growth regulators; naked layer stratification and sand layer stratification had cosistent effect on relieving seed dormancy; hypothermal stratification with GA3 500~1000mg/L for days could relieve seed dormancy, compared to sand stratification it shortened 30 days, and its germiation percentage was higher than that of sand stratification.

结果表明，引起砂梨种子休眠的主要有种皮障碍、种胚休眠和种胚后熟；而解除休眠的主要方法为低温层积处理和植物生长调节剂处理。裸层积和沙层积在解除种子休眠上的发芽效果是一致的，使用GA3溶液浸种，不能完全打破种子休眠，用GA3 500~1000mg/L低温层积30d即可解除种子休眠，比直接沙层积缩短30d，其发芽率比直接沙层积高。

The seed bank itself contains a large number of germinative seeds (3754.3 per square meter): these seeds belong to 18 woody species and 12 herb species.

种子库中活力种子丰富，其数量达3754.3粒。m－2，分属30种植物，其中木本植物种子18种，草本植物种子12种。

High salinity and temperature induce seeds of euhalophytes Halostachys caspica, Kalidium foliatum and Halocnemum strobilaceum to remain ungerminated, and seeds germination and seedling establishment of the three halophytic species can be ensured only when temperature and edaphic conditions are favorable. This is most likely an important adaptive strategy in these halophytic species to survive their saline environment in an arid region in Xinjiang;(2) morphological adaptations.

三种真盐生植物盐穗木、盐爪爪和盐节木种子在高盐和高温时不萌发，只有当温度和盐分适宦时种子才萌发，有利于幼苗的成活，是这三种植物适应新疆极端生境的策略。

Flooding,as a kind of disturbance events,occurred with higher and higherfrequency over the world.To investigate the effects of flooding disturbance ongrassland vegetation and the soil,a comparatively thorough study was conducted onAneurolepidium chinense grassland in Songnen plain,Northeast China.The studysite was located in Sanjiadian National Rangeland in the territory of Da'an city,Jilirprovince,which was partly flooded in 1998.On the study site,Several transectssubjected to different flooding durations and intensities were designed for thecomparative study among them on such aspects as vegetation characteristics,seedbanks,vegetative propagation of rhizomatous plants,distribution patterns ofpopulations,interspecific relations,and physio-chemical properties of soil.Theresults were as follows:(1)Of the functional group composition of the vegetation,with the elongation of the flooding duration or the increase of flooding severity,theratio of hygric and hygro-mesic plants increase,while that of mesic and mesoxericplants decrease,of Therophytes changed unimodally,of Geophytes increased,whileof Hemicryptophytes decreased.

为弄清草地植被及其土壤环境对水淹干扰的响应，在松嫩平原羊草草地1998年部分遭受水淹的吉林省大安市三家甸子草场内设置了经历不同水淹干扰持续时间和不同水淹强度的样带，并在这些样带之间从植被特征、种子库特征、根茎植物的营养繁殖性能、种群分布格局、种间关系及土壤的理化性质等多个方面展开对比研究，主要结果如下：(1)在植被的功能群组成中，随干扰强度的增加和水淹干扰持续时间的延长，湿生、湿中生类植物功能群的优势度比例基本上是逐渐增加的，中生、中旱生类植物功能群的优势度比例则逐渐减小，而一年生植物的优势度比例呈单峰型变化，地下芽植物比例增加，地面芽植物比例减小。

The nutrition composition content in the seed of pines and Juglansmandshurica were higher than other plant leaf and buds,and Seed of Juglans mandshuricain content of protein and crude fat were higher than confivorous seed and tender branch,leaf,bud of other plant obviously.

松籽和胡桃楸种子中的营养成分含量较植物叶芽高，并且胡桃楸种子中粗蛋白和粗脂肪含量明显地高于松籽和其它植物的叶芽和嫩枝条。

Based on the studies of specimens, taxonomic revision of the genus Kadsura Jussieu has been finished with special reference to seed morphology. Other information from phytomorphology, phytotomy, phytoembryology, phytocytotaxonomy, molecular systematics and phytochemistry etc.

本文主要根据对世界范围南五味子属Kadsura Jussieu植物标本的研究，结合种子形态方面的实验数据，参考植物形态学、植物解剖学、植物胚胎学、孢粉学、植物细胞分类学、分子系统学和植物化学等方面的资料，对世界性南五味子属植物作出全面的分类学修订。

4The low similarities betweenseed banks and the established vegetation were considered to be the consequences ofthe frequent presence in the established vegetation but not in seed banks of someperennial rhizomatous plants which mainly depended on vegetative propagation toregenerate;insignificant difference in the species composition of seed barks amongtransects, might be accounted for by the fact that the flood drift had functioned as adisseminator for propagules;and with the intensifying of the flooding disturbance,both species diversity and the similarity between seed banks and establishedvegetations declined.

4种子库与地上植被相似性普遍较低，其原因是主要靠营养繁殖以更新种群的多年生根茎植物经常在植被中出现而不在种子库中出现；受水淹干扰的样带之间种子库的种类组成差异不大，说明洪水漂移行使了繁殖体传播和散布的功能；随水淹干扰强度增加，种子库物种多样性指数减小，种子库与地上植被的物种组成相似性下降。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。