种子的

Corn seeds' perimeter, area, circular, rectangularity, and elongation——these five modal characteristic parameters have a decisive role on maize seeds' quality classification.

玉米种子的周长、面积、圆形度、矩形度、伸长度五项形态特征参数对玉米种子的质量分级有着决定性的作用。

We constructed a cDNA library with developing tea-oil tree seed, which is close to mature.

我们用近成熟的油茶种子为材料，构建了油茶种子的cDNA文库，在此基础上构建了EST文库并对油茶脂肪酸合成的关键基因等进行了分离鉴定工作。

This in their subconscious of the seeds of the seeds of a split.

这在他们的潜意识中的种子，种子的分裂。

The inhibition effects became stronger with the increase of the irradiation dose. Semi-lethal dose of Ailanthus altissima Swingle seeds was 50Gy. 50~75Gy could be considered as the proper dose for seed irradiation treatment of Ailanthus altissima Swingle.

结果表明：辐照抑制了种子的萌发，成苗率下降，幼苗生长受到抑制，且随着剂量的增加，抑制作用增强；椿树种子的半致死剂量为50Gy，适宜辐照剂量为50~75Gy。

Additionally,we specially tested seeds antioxidant enzyme and protein of Hedysarum scoparium under drought stress or recover condition,and the Peganum harmala characteristics of seed traits and communities distribution to find out the mechanism of resist-drought.

同时，我们还研究了骆驼蓬的种子特性及群落分布特点，这些研究结果均有助于我们进一步了解植物种子的抗旱生理生化机制和群落分布规律，为荒漠治理及优势群落的发展与保护等提供理论依据。

De Wit seeds with petrol ether,purified water and 95% ethanol was studied using test tube method.The chemical components of Leucaena leucocephala de Wit seeds were preliminarily demonstrated using precipitation reaction and color reaction of multiple indicators.

方法采用试管反应法，对银合欢种子的石油醚、水、95%乙醇提取物进行研究，通过多种指示剂和显色剂的沉淀反应或颜色反应，对银合欢种子可能含有的化学成分进行初步研究。

MethodsThe mixture was extracted from Leucaena leucocephala de Wit seeds with petrol ether,purified water and 95% ethanol was studied using test tube method.The chemical components of Leucaena leucocephala de Wit seeds were preliminarily demonstrated using precipitation reaction and color reaction of multiple indicators.

方法采用试管反应法，对银合欢种子的石油醚、水、95%乙醇提取物进行研究，通过多种指示剂和显色剂的沉淀反应或颜色反应，对银合欢种子可能含有的化学成分进行初步研究。

On pod level, seed aborted in turn with seed-set being much higher in even-numbered ovule positions, which correspond to the upper valve of the pod if the fruit is viewed from the peduncular end, than in odd-numbered positions in alfalfa pod.

在荚果水平上，苜蓿荚果内种子在形成过程中表现出明显交替败育的趋势，其中从果实基部算起偶数位置的胚珠形成种子的机会更大。

Sanitation practices such as with vegetable production, and clean seed programs to keep sclerotia out of seed lots are also useful practices in some crop production systems.

在某些作物的生产体系中，与蔬菜混作、调整种子的消毒程序等卫生实践都能使种子免受核盘菌的浸染。

The results are as followings: the CHA SQ-1 has the best effect of male sterility among three kinds Chemical Hybridization Agent, and has the ability to increase 1000 kernel weight. The CHA GENESIS, especially BAU9403 reduces the 1000 kernel weight. The SQ-1 and GENESIS have no significant differences with CK on the traits of geminating potential, germinating rate and volume weight, but BAU9403 has significant differences with CK. SQ-1 is a promising CHA in this experiment. It will be used in commercial seed production instead of GENESIS.

结果表明，SQ-1在3种化学杂交剂中的杀雄效果最好，并对杂交种种子的千粒重有提高作用；GENESIS和BAU9403不同程度对杂交种种子千粒重有降低作用，其中BAU9403影响更大；SQ-1和GENESIS对杂交种发芽率、发芽势和容重的影响与对照不喷药无显著差异，但BAU9403与对照有显著差异。

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。