子叶

Preliminary bioassay showed that most of title compounds had good herbicidal activity, for example, 9a, 9b, 9c, 9f, 9g and 9h exhibited more than 90% inhibition aganist dicotyledon weeds, such as Abutilon theophrasti Medic and Amaranthus spinosus at an active ingredient 75 g/hm2 in post-emergence treatment.

初步生物活性测定结果表明，该类化合物具有一定的除草活性，如9a， 9b， 9c， 9f， 9g和9h在有效成分75 g/hm2剂量下，茎叶处理对苘麻、刺苋等双子叶杂草的抑制率达90%以上。

Achene not lustrous, enclosed by marcescent perianth, Seed with endosperm; cotyledons elliptic or ovate.

没有光泽的瘦果，藏于凋而不落的花被，有胚乳的种子；子叶椭圆形或卵形。

Seeds and developing seedlings of Aconitum kusnezoffii were anatomized to examine vascular development in the root hypocotyl transition region.

关于根茎初生维管系统之间的连接以及与子叶的关系，在文献中已有广泛的论述，有过各种不同的解释。

The factors influencing the formation of adventitious buds were studied by means oforthogonal design.

用正交设计法对影响桑子叶不定芽形成的诸因素进行了比较研究。

Unlike the axe, the blade of the adze is set at right angles to the handle, so that, in use, the cutting edge is horizontal rather than vertical.

不同的是斧头，锛子叶片的设置成直角的处理，因此在使用中的，最前沿的水平，而不是垂直的。

Seeds 1-12, smooth or occasionally furrowed, albuminous or exalbuminous, sometimes winged, wing membranous, basal, exarillate or aril basal to completely enveloping seed, aril membranous, fleshy, rarely mucilaginous; cotyledons flat, foliaceous or thick, connate, germination epigeous.

种子1-12，光滑或者偶尔有皱，具胚乳或无胚乳，有时具翅，翅膜质，基生，无假种皮或有假种皮，假种皮基生或完全包围种子，膜质、肉质，很少有粘液子叶平，叶状或者厚，合生，发芽时出土。2n = 8，12，14。

The 9 species belong to 4 taxa, pteridophyta (Dicranopteris dichotoma and Alsophila spinulosa), gymnosperm (Cycas panzhihuaensis, Metasequoia glyptostroboides, Cunninghamia lanceolata and Pinus massoniana), dicotyledon (Schima superba and Cyclobalanopsis glauca), monocotyledon, which are ranked in the order of the origin time from earlier to later.

所选的9种植物分属于4个类群，按起源时间由早到晚依次为蕨类植物、裸子植物（苏铁、水杉、杉木和马尾松）、双子叶植物及单子叶植物。

The leaf blotch pathogen Alternaria alternate was purified from Schisandra chinens and its biological characteristics were studied.

分离纯化了五味子叶枯病的病原菌细极链格孢菌，并对其生物学特性进行了研究。

A new upland germplasm with the delayed gland morphogenesis trait of G.bickii, ABH-0318, was bred by crossing the amphidiploid of (G.arboreum ×G.bickii)F_1 with an upland cotton germplasm 'Gl_2Gl_2gl_3gl_3' and backcrossing afterward continuously.

用F1双二倍体作母本与陆地棉单节显性系1(Gl2Gl2gl3gl3)进行杂交和连续回交，育成了具有子叶色素腺体延缓形成特性的陆地棉种质系———ABH0318。

Somatic embryos can be produced both from the surface and the inner of the calli. Embryogenic cell has normal shape, dense cytoplasm , clear nucleolus, hearty metabolize; Plantlet regenerations were developed from global embryo, heart-shaped embryo, torpedo-shaped embryo and cotyledon embryo, in which the V-shaped vessel vascular bundles and shoot tip meristem and root tip meristem were observed.

胚性细胞多为椭圆形，细胞质浓厚，核仁明显，代谢旺盛；体细胞胚经过球形胚、心形胚、鱼雷形胚和子叶胚而发育成再生植株，子叶期体细胞胚可观察到明显的V型维管束、茎尖分生组织以及根尖分生组织。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。