查询词典 plant morphology

The journal dedicates to the studies of the taxonomy, phylogeny and evolution of botany. Research areas mainly include plant diversity conservation, molecular phylogenetics, population biology, morphology, biodiversity, herbaria and nomenclature etc.

该刊致力于植物学的分类学、系统发生和进化方面的研究，研究领域主要涉及植物多样性的保存、分子系统发生学、种群生物学、形态学、生物多样性、干燥标本集以及命名法等等。

Antennal morphology and sensilla of the green plant bug, Lygus lucorum Meyer-Dür (Heteroptera: Miridae), were studied using scanning electron microscopy.

利用扫描电镜对绿盲蝽雌雄成虫的触角形态和感器进行了观察。

And C. hystrix Chakr.. In morphology, the plant AT-04 was characterized to have small-sized leaf, short fruit, brown spine and multi-branching habit, which were closely similar to those of the original parent wild species, and to have a fertility as high as that of cultivated cucumber.

农艺学观察表明，其具有小叶、短果、棕色瘤刺、多分枝的特点，形态上偏向原始亲本野生种Cucumis hystrix Chakr。，育性与栽培黄瓜相近。

Morphological indices of aboveground and underground organs of Plantago virginica were determined using Leaf Area Analysis System (FOCTA STD 1200P) and Root Analysis System (RHIZO STD 1600+) to investigate the influence of population density on the root morphology of the plant.

应用叶面分析仪、根系分析仪对北美车前地上和地下部分形态进行了测定，考察北美车前种群密度对植株形态学参数的影响。

The major agronomic characters, morphology and the genetic stability of polyembryonic seedling of the mutant line were systematically investigated. The results are as follows. The agronomic characters of IR36-Shuang were obvious different with its parent IR36-4X. The plant height, panicle length, 1000 grain weight and the setting rate of the IR36-Shuang were lower than that of its parent by 35.41%、5.08%、15.72% and 12.39%, respectively.

对该突变株后代的主要农艺性状、多胚苗形态特征和遗传稳定性进行研究表明，突变株系与其原始亲本在主要农艺性状上存在明显差异，前者在株高、穗长、千粒重和结实率等性状上比后者分别下降35.41%、5.08%、15.72%和12.39%。

Belongs to Rubiaceae plants, with special droppings stink. This plant grows throughout Taiwan. We studied it in the wild and found large differences in leaf morphology present among the organisms.

属於茜草科植物，具有特殊鸡屎臭味，本植物广泛分布於台湾，经野外观察发现，不同植株之叶子形态特徵差异性很大。

Cytological observations of the anther development of pms15-16-2-3 mutant and the wild-type plant showed that the mutant middle layer degenerated later, both the tapetal cell morphology and the tetrads were abnormal, which resulted in few fertile pollen grains formed in the anther.

细胞学观察表明，突变体在花药发育的过程中，中层细胞延迟降解，绒毡层细胞形态分化异常，出现异常的四分体，导致最终只能形成少量的花粉。

Traditional biological researches of lotus mostly concerned morphology,plant taxology and genetic breeding.

就莲的生物学研究来看，传统的研究主要集中在物种分类、遗传杂交育种等方面。

The journal, launched in 1995, publishes articles covering from the systematics and morphology of venomous animals to the biochemistry, pharmacology and immunology of venoms; epidemiology of envenoming by different animals, insects, algae, bacteria, fungi, and plant products; molecular biology of venoms; physiology of venom actions; treatment of their effects; preparation and evaluation of vaccines, and tropical diseases so on.

杂志于1995年发行，刊载论文，内容涉及从具毒腺动物的系统分类学和形态学到毒汁的生物化学，药物学和免疫学；不同动物，昆虫，藻类，细菌，真菌和植物产品毒害的流行病学；毒液的分子生物学；毒液作用的生理学；它们作用的治疗；疫苗的制备和评价，以及热带疾病等。

In this paper, male sterile line of alfalfa was used to be improved with crossing, because the seed production of crossing is low. The affecting factors of seed production of male sterile line of alfalfa and its crossing progenies that are crossed with male sterile lines of alfalfa and good alfalfa that male is fertile were analyzed. The characteristics of female reproductive organs of male sterile line and its crossing progenies are analyzed in cell morphology. The genetic difference of male sterile line and its crossing progenies are analyzed in enzyme protein. The results showed: 1、Rate of podding of nature crossing and fecundity of artificial crossing of the male sterile plant BC1-2 that is the crossing progency of male sterile line of alfalfa and Medicago varia Martin.cv.'Caoyuan No.1'is higher than male sterile lines. Rate of podding of nature crossing and fecundity of artificial crossing of the male sterile plants BC1-19、BC1-21、BC1-22、BC1-23 that are the crossing progencies of male sterile line of alfalfa and Medicago sativa L.cv.

针对苜蓿雄性不育系杂交制种产量低的问题，采用杂交法对苜蓿雄性不育系进行改良，以原苜蓿雄性不育系为轮回亲本与雄性可育优良苜蓿品种杂交，分析苜蓿雄性不育系及其杂交后代种子产量的影响因素，从细胞形态学方面观察和分析杂交后代及原不育系在雌性生殖器官上的变异特点，从酶蛋白水平对杂交后代及原不育系的遗传差异进行分析，初步研究结果如下： 1、苜蓿雄性不育系与草原一号苜蓿的杂交后代不育株BC1-2，以及苜蓿雄性不育系与X′(苜蓿雄性不育系与新疆大叶苜蓿的杂种F1代)的杂交后代不育株BC1-19、BC1-21、BC1-22、BC1-23的天然杂交结荚率和人工杂交制种的结荚率和百粒重均高于原苜蓿雄性不育系。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。