1) Natural seed production
天然制种
2) natural hybrid
天然杂种
1.
natural hybrid clones was studied by means of field test and statistical analysis.
运用田间试验和统计分析的方法研究了白花泡桐天然杂种无性系自然接干性状的遗传变异。
3) natural population
天然种群
1.
Study on pollination characteristics of natural population of Pinus koraiensis;
红松天然种群风媒传粉特点的研究
2.
Establishment of a natural population during the ex situ conservation of Taxus chinensis;
红豆杉迁地保护中天然种群的形成
3.
Studies on natural population distribution of Keteleeria cyclolepis in Fujian Province;
福建江南油杉天然种群分布规律研究
4) natural seed coat
天然种衣
1.
A laboratory study was made on seed weight,viability of seed,natural seed coat,absorption,and germination characteristics of Seriphidium(Bess.
)的千粒重、种子生活力、天然种衣形态、种子吸水曲线及发芽率进行了比较。
2.
This paper studies the water absorptivity,the amount of water absorption,dehydration,seed s exuviations way,the effect on seed s bourgeon of the natural seed coat of Seriphidium transiliense in Xinjiang plain hungriness areas.
本文研究新疆平原荒漠地区的伊犁绢蒿种子天然种衣 (也称膜 )的吸水速度、吸水量、失水性、种子脱膜方法、天然种衣对种子萌发的影响。
5) wild seed
天然苗种
1.
The difference between wild seeds and artificial seeds of yesso scallop(Patinopecten yessoensis) in marine raft-cultivation was investigated from February to December of 2007.
2007年2—12月对虾夷扇贝天然苗种和人工苗种进行海上浮筏养殖生长对比试验。
6) tree species in natural forests
天然林树种
补充资料：石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(见石油市场与天然气市场)
石油天然气国际贸易(internotional tradeof011 and只as)见石油市场与天然气市场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条