The germination characteristics of forty annual plants of the alpine meadow on the Qinghai-Tibet Plateau;
青藏高原高寒草甸40种一年生植物种子的萌发特性研究
Composition and distribution characteristics of annual plant in desert area in Hexi Corridor
河西走廊荒漠区一年生植物组成及其分布特征
A field experiment on the reproductive allocation of the annual plant Eragrostis poaeoides was carried out in the re-vegetated areas in Shapotou of the Tengger Desert.
沙坡头人工固沙区不同始植年代一年生植物小画眉草(Eragrostis poaeoides)的繁殖分配研究。
Nitrogen concentrations,C/N ratios and δ13C values of 71 alpine plants(perennials and annuals)grown at the east of Qinghai-Tibet Plateau in natural condition were measured.
对生长在青藏高原东部隶属于23科、49属的71种高山植物(包括多年生和一年生植物)的稳定碳同位素比值、氮含量以及碳/氮比率进行了分析,并以稳定碳同位素比值及碳/氮比率来分别指示植物的水分利用效率和氮素利用效率。
The annual plants dominated the species and soil seed density during sand dune succession process.
土壤种子库物种组成和种子密度均以一年生植物为主。
Effects of UV-B Radiation on Photosynthesis, Growth and Reproduction of Three Annuals in Alpine Meadow;
UV-B辐射对三种高寒草甸一年生植物光合作用、生长和繁殖的影响
Bearing greater survival risk,annual halophytes have a set of mechanisms safer than those of perennial halophytes,including seed dormancy when subjected to high salt,fast germination after rehydration,polymorphism in morphology and germination,persistent seed bank and plastic resource allocation.
其中一年生盐生植物因其生活史短、方便培养和观察、易于基因转化和后代繁殖,已成为耐盐机制研究的主要对象。
are Beans annuals?
豆类是一年生植物吗?
classification for winter annua
冬性一年生植物分类
This is an annual, which to all intents and purposes behaves like a cereal.
实际上，这是象谷物一样的一年生植物。
an annual of tropical Asia naturalized in United States.
亚洲热带地区一年生植物，引种于美国。
perennial or annual aquatic or marsh plants.
常年或一年生水生或沼泽植物。
annual or perennial herbs.
一年或多年生草本植物的一个属。
sprawling European annual having a 4-winged edible pod.
一年生欧洲蔓生植物，有翅可食豆荚。
Perennials like the azalea and forsythia bloom year after year.
多年生的植物如杜鹃、连翘一年接一年地开花。
annual, biennial or perennial herbs: buttercup; crowfoot.
一个一年二年或多年生草本属；毛莨；毛莨属植物。
cosmopolitan genus of annual and biennial and perennial herbs: cress.
一个一年两年和多年生世界性草本植物属；水芹。
perennial or annual bog or marsh plants; includes arrow_grass.
多年或一年生沼泽或湿地植物的一个属；包括水毒冬属的一种植物。
erect annual Eurasian herbs.
欧亚一年生直立草本植物的一个属。
perennial woodland spring-flowering plant; widely cultivated.
一种春天开花的多年生林地植物；现被广泛种植。
North American annual or biennial with long soft hairs on the leaves.
北美一年生或两年生植物，叶子上有柔软的长毛。
a border of annual flowering plants.
长满一年生开花植物的花坛。
Old World perennial bulbous herbs.
旧大陆一个多年生球根草本植物的属。
aromatic perennial of southeastern Russia.
俄国东南的芳香的多年生的一种植物。
deep-rooted perennial of southeastern United States.
美国东南的一种深根的多年生植物。