查询词典 seed plant

An extinct seed-producing fernlike plant of the order Cycadofilicales.

苏铁属的一种已经灭绝的类似于蕨类的种子植物。

Aqueous extract of cotton has allelopathic effect on Raphanus sativus, Brassica campestris, Lactuca indica, Brassica campestris, Echinochloa crusgall, Setaria viridis and Abutilon theophrasti and its inhibition effect gradually strengthens with increasing concentration. Aqueous extracts from stems, leaves and roots of cotton inhibit or accelerate seed germination and seedling growth, and activity of enzyme of seedling root of cotton. While aqueous extracts from stems and leaves of cotton are 0.02 gmL^(-1), root length, shoot length, lateral root number and dry weight of cotton respectively increase by 10.3%, 3.1%, 22.9% and 2.4% over the control. The above mentioned indexes are lower than the control by 34.4%, 39.2%, 40.6% and 19.0% respectively as the aqueous extracts are 0.1 gmL^(-1). At the same time, root activity and SOD activity decrease by 38.2% and 36.7%, while POD activity and MDA content increase by 52.3% and 36.5%. Growth indexes of plant receptors increase at low concentrations but decrease at high concentrations of aqueous extracts. The allelopathic effect of aqueous extract of stems and leaves is stronger than that of root.

结果表明：棉花植株水浸提液对萝卜、白菜、莴苣、油菜、稗草、狗尾草、苘麻均具有化感效应，随着作用浓度增加，抑制效应逐渐加强；棉花茎叶和根系水浸提液对棉花种子萌发、幼苗生长、幼苗根系活力、根系酶活性有抑制或促进作用，当茎叶浸提液浓度为0.02 gmL^(-1)时，棉花根长、苗高、侧根数、干重分别比对照增加10.3%、3.1%、22.9%和2.4%，当浓度为0.1 gmL^(-1)时，上述指标与对照相比分别降低34.4%、39.2%、40.6%和19.0%，而根系活力、SOD活性比对照降低38.2%、36.7%，POD活性、MDA含量较对照增加52.3%和36.5%，不同浓度棉花植株水浸提液对棉花生长呈现&低促高抑&的规律，且茎叶浸提液作用效应大于根系浸提液。

In seed orchards, this is accomplished through the establishment of dilution zones, control of the positioning of orchard clones, plant espacement, etc.

这就是在种子园设立稀释带，控制园内无性系的位置和株行距离。

In seed orchard s, this is accomplished through the establishment of dilution zones, control of the positioning of orchard clones, plant espacement, etc

这就是在种子园设立稀释带，控制园内无性系的位置和株行距离。

Festuca arundinacea ; seed ; callus ; tissue culture ; plant regeneration

高羊茅；种子；愈伤组织；组织培养；植株再生

The Aust S Ming clear industry company has been putting quality at first, then and strictly guard a quality pass from the first, professional agriculture specialist's troops strictly supervises and controls to plant process, from the garbling of seed, the handling of in the field, the growth of corn, press the object to pick on time, all strictly supervise and control.

澳明实业公司一直把质量放在首位，从一开始便严格把守质量关，专业的农业专家队伍严格监控种植过程，从种籽的精选，田间的管理，玉米的生长，按时按标的采摘，都严格监控。

Gl_2~e is a gene controlling glandless traits in cotton plant and seed, which is an important gene resource for gossypol-free cottonseed breeding.

Gl_2~e基因是控制棉花植株和种子无腺体的一个基因，是低酚棉育种中一个重要的基因资源。

Rod red brown or cinnamon, have edge, shape of foliaceous water chestnut is elliptic, tip is short gradually pointed, base ministry wedge, the predestined relationship is provided fine pure toothed, grow 3-12cm, wide 2-8.5cm, two sides does not have wool glossily, the leaf expresses green, the leaf carries dark green green on the back, vein and Xie Bing all take green, individual plant of different of male and female, female male flower all is catkin, capsule does not have wool, 2-3 valve is cracked, the seed is small, hairiness, first Xie Kaifang, florescence April, fruit is ripe April.

纵裂。小枝红褐或黄褐色，具棱，叶菱状椭圆形，先端短渐尖，基部楔形，缘具细纯锯齿，长3-12cm，宽2-8.5cm，两面光滑无毛，叶表绿色，叶背苍绿色，叶脉和叶柄均带绿色，雌雄异株，雌雄花均为柔荑花序，蒴果无毛，2-3瓣裂，种子小，有毛，先叶开放，花期4月，果熟4月。

Vegetable blood group A Japanese scientist studied a variety of 500 angiosperm and gymnospermous seed and fructification, discovery has O blood group 60 kinds among them, 24 kinds have B blood group, write a few plants additionally to have AB blood group, but did not find namely can deciding is A model plant.

植物血型一位日本科学家研究了500多种被子植物和裸子植物的种子和果实，发现其中60种有O型血型，24种有B型血型，另写一些植物有AB型血型，但就是没有找到能够判定是A型的植物。

The higher the inoculation concentration of the strain is during seed germination, the more quantity the strain in host plant tissues. When strain B504-1121 was inoculated on lower petioles, it could transfer into upper tissues, however it only habitate in leaves if it was inoculated on leaves.

在下部叶片叶柄处接种的菌体可向上移动，通过茎进入上部叶片；在叶部接种的菌，则只在接种叶内定殖，不再向其他部位转移。

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。