tree seedling的例句大全

The tree seedling production in Cangzhou city is developing fast these years. Presently, the city has 307 nurseries, 2 900 hm~ 2 of seedling area and total seedlings of 0.24 billions.

沧州市的林木种苗事业迅猛发展，全市现有各类苗圃307处，育苗总面积029万hm2，产苗量达24亿株。

A century later, the seedling planted by Samuel Pollard has grown into a towering tree now.

一个世纪之后，当年柏格理种下的树苗如今已长成参天大树。

Scientific Note on Aseptic Budding and Seedling Propagation from Seeds Crossly Bred by Cymbidium sp. 'Pleiacles Memory' and Cymbidium hookerianum slender elegant tree of New Zealand having racemes of red flowers and yielding valuable mottled red timber.

大花蕙兰与奇花虎头兰杂交种子无菌萌发及成苗途径新西兰一种端庄纤细的树种，总状花序，红色花冠，经济型杂色红木材。

Preliminary Report of 33 Tree Species'Seedling Breeding for Landscape Plantation in Pu'er Mountain Area

33个树种景观绿化苗木的普洱山地培育试验初报

plant quarantine rules for mother tree and seedling of virus - free apple

苹果无病毒母本树和苗木检疫规程

seedling and seed near around parent tree show higher mortality rate because of density competition .

母株附近由于密度竞争的影响，种子和幼苗死亡率都较高。

effect of soil drought on seedling growth and dry matter allocation of four native tree species on loess plateau;

乡土植物是城市绿化中的重要素材，而乡土树种更担当着主体作用。

raise seedling technique of forest tree by plougless farming

林木免耕育苗技术研究

The two-part rubber tree ( Hevea brasiliensis ) is a superior clone grafted on a seedling family.

在橡胶树优良有性系实生苗上嫁接优良无性系,即形成两合树.

In order to develop new sericulture region and enhance the survival rate of transplanting or the introducing mulberry tree, gas-adjustment cold-storage technology is used to lengthen the mulberry seedling dormant period.

为了促进蚕桑新区的发展，提高桑树栽植或引种的成活率，利用气调库冷贮技术冷藏桑苗，延长桑苗休眠期，为跨纬度调节桑苗创造条件。

Physio ecological study on the seed germination and seedling growth in four legume tree species under elevated CO 2 concentration

高CO2浓度下4种豆科乔木种子萌发和幼苗生长

A huge tree grows from a tiny seedling.

合抱之木,生于豪末.