1)  Cutting time
扦插期
2)  cutting
扦插
1.
Effects of microbes on rooting and on several physiological and biochemical indexes of cuttings of Huperzia serrata;
微生物对蛇足石杉扦插生根及若干生理生化指标的影响
2.
Research on the cutting propagation of Sauropus audrogymns Meer.;
天绿香的扦插繁殖试验研究
3)  cuttage
扦插
1.
Study on influence of three plant hormone on Syringa oblata cuttage;
三种植物激素对紫丁香扦插的影响
2.
Effects of period of cuttage on growth of seedling for Lonicera japonica;
扦插时期对金银花苗生长发育的影响
3.
Influence on Cuttage Seedling-raising Survival Rate of Chinese Sarch by Some Treatment Methods;
几种处理方法对中国沙棘扦插育苗成活率的影响
4)  cuttings
扦插
1.
The results of experiments on growth and cuttings of superior families of hybrid larches in 3 successive years indicated that the best hybridized combinations were Korean Larch 14×Japanese Larch and Korean Larch 4c×Japanese Larch,the rooting rates of cuttings and development of root systems were increased compared with maternal p.
通过连续3年的优良杂种落叶松家系生长和扦插试验,结果表明,最好杂交组合为长14×日混、长4c×日混,与母本相比扦插生根率和根系发育都有所提高,说明长白落叶松与日本落叶松杂交后,不仅提高了根生长量,也显著的提高了生根性状。
2.
In order to propagate by cuttings, branches of Zelkova schneideriana Hand Mazz.
扦插繁殖国家二级保护植物榉树 ( Zelkova schneideriana)时 ,最好选择枝粗 >1 。
3.
The purpose of this experiment was to search optimal substrate that adapt to cuttings rootage of Cestrum nocturnurm with excellent perfomance and lower cost.
旨在探求适合于夜香树嫩枝扦插繁殖的性能良好、成本较低的基质类型,试验选用了珍珠岩、蛭石、河沙、珍珠岩+蛭石(1:1)、珍珠岩+蛭石(2:1)作为扦插基质,通过测定各基质的物理性质及插穗的形态指标、生理指标,选定出最佳基质类型。
5)  cottage
扦插
1.
0×10-4 to soak cuttings of Cupressus magcroglossus Gloderest with 4 hours,in the mixed media(1/2pearlite+1/2peat earth),the cottage rooting rate of Cupressus magcroglossus Gloderest was 60.
用不同浓度、不同处理时间的ABT1号生根粉处理金冠柏插穗,扦插在1/2珍珠岩+1/2草炭土和1/2园土+1/2草炭土两种混合基质中,结果表明:质量分数3。
6)  cutting propagation
扦插
1.
The authors conducted the experiment on cutting propagation of two wild flowers,Raphiolepis indica and Syzygium buxifolium.
开展野生花卉车轮梅(Raphiolepis indica)和赤楠(Syzygium buxifolium)扦插试验,结果表明:车轮梅硬枝扦插需一定浓度的外源激素方能生根;对激素浓度大小不敏感;总体上NAA组合生根质量优于IBA组合。
2.
different light cultural media for cutting propagation of Eucalyptus ABL were studied.
试验结果表明 :在 12种不同配方基质中 ,各组合基质间的干、湿重达极显著差异 ,扦插生根率和杯期苗木高生长达显著或极显著差异。
3.
The mangrove Heritiera littoralis was researched in this paper, including community survey, shape and structure of fruits and seeds, the effect of different pretreatments on fruits germination rates and different pretreatments, salinities, soil substrates on seeds germination rates, seedlings growth mode, cutting propagation.
本研究对广西防城港市银叶树群落进行了调查,对其果实和种子的形态结构进行了测定,探讨了不同预处理对果实萌芽及不同预处理、基质、盐度对种子萌芽的影响,同时对幼苗的生长规律进行了研究,并进行扦插试验。
参考词条
补充资料:欧洲式期权、美国式期权与亚洲式期权


欧洲式期权、美国式期权与亚洲式期权


  【欧洲式期权、美国式期权与亚洲式期权】期权合约所规定的权利有一定的时效期,过了失效日后,权利即行作废。一些期权规定权利仅能在有效期的最后一天执行,这种期权被称为欧洲式期权(ell功pean叩tions);另一些期权则容许在有效期内任何一天执行,这种期权被称为美国式期权(一~oPtions)。值得指出的是,虽名为欧洲式或美国式期权,但已无任何地理上的意义。由于欧洲式期权的规定过于严格,又出现了一种“改变的欧洲式期权”,它允许期权在一定的时间范围内进行交易。可见,美国式期权为期权购买者提供了更多的选择机会,因此,它的购买者也往往需支付更高的保险费。近年来无论在欧洲或美国,所交易的期权均以美国式为主,欧洲式期权虽仍存在,但其交易量已比不上美国式期权。 在so年代末期,市场上又出现了一种所谓亚洲式期权(asian ontions),但也无地理上的意义,其差别主要在于履约价值(exe而sev公此)的计算。以买权为例,无论是美国式期权或是欧洲式期权,执行权利所能得到的履约价值均为当时标的物的市价减去履约价格,再乘以合约所定的数量,但亚洲式期权的履约价值则为权利期间内标的物市价的平均(计算至履约日为止),减去履约价格,再乘以合约所定的数量。
  
说明:补充资料仅用于学习参考,请勿用于其它任何用途。