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We used Edward's long-tailed rats and Cork oakseeds with different seed size, a dominant granivore and tree species in the experimental forest of Dujiangyan City, Sichuan Province, to test the two predictions of the Optimal Cache Spacing Model in a semi-natural enclosure:(1) The caching proportion of big seedsshould be higher than that of small ones; and (2) the big seeds will be cached at a longer distance from their source sites than will the small ones.

以小泡巨鼠为研究对象,在围栏条件下,测定小泡巨鼠对大小两种栓皮栎种子的贮藏行为差异,以检验最优贮藏空间模型的两个预测:(1)大种子的贮藏率大于小种子;(2)大种子的贮藏距离远于小种子

The suboptimal thermoperiod was 15℃/25℃. 2. The fresh H. ammodendron seeds had highly germination ability, and have no dormant phenomenon; The fruiting wings had significant inhibition the germination of fresh mature seed in autumn, and fruiting wings made H. ammodendron seeds maintain dormancy, but with store time extend, the effect that fruiting wings inhibited seed germination gradually alleviate, fruiting wings didn't inhibition effect of seed germination until the next spring(in 4 month).

2梭梭新采收的去翅种子不存在休眠现象,而具有很高的萌发生活力;果翅对秋天新成熟种子的萌发有显著的抑制作用,使种子处于强迫休眠状态;果翅对种子萌发的抑制作用随着贮藏时间的推移逐渐降低,到翌年春天(4月)果翅解除对种子萌发的抑制作用。

Persicum seeds was 5℃/15℃. The suboptimal thermoperiod was 15℃/25℃. 2. The fresh H. ammodendron seeds had highly germination ability, and have no dormant phenomenon; The fruiting wings had significant inhibition the germination of fresh mature seed in autumn, and fruiting wings made H. ammodendron seeds maintain dormancy, but with store time extend, the effect that fruiting wings inhibited seed germination gradually alleviate, fruiting wings didn't inhibition effect of seed germination until the next spring(in 4 month).

2梭梭新采收的去翅种子不存在休眠现象,而具有很高的萌发生活力;果翅对秋天新成熟种子的萌发有显著的抑制作用,使种子处于强迫休眠状态;果翅对种子萌发的抑制作用随着贮藏时间的推移逐渐降低,到翌年春天(4月)果翅解除对种子萌发的抑制作用。

In the soil seed bank, the proportion of the Worm-eaten seed was 53.79%.

土壤种子库中虫蛀种子占53.79%,与种子雨相比,完好种子和萌发种子数量分别减少2.15个m^(-2)和0.20个m^(-2)。

First of all,we tested the germination and water uptake rate of 47 species typical xerophil seeds grow up in north China from 20 families,38 genuses under sufficient water and different Grads water stress by high-molecular-weight polyethylene glycol(PEG6000).The results show that Xerophil seeds from the same habitat exhibited similar patterns in response to water stress.Xerophil seeds from arid community were stronger in germination and imbibition than that from other two communities under serious water stress,whereas Xerophil seeds from humid community were sensitive to any degree of water stress.Namely,the seeds live in arid habitat possessed high germination and quickly water uptake in sufficient water or any degree of water stress,but the others grow up in humid habitat shown significant difference which germination and water uptake well under sufficient water but inhibited even if slight water stress.

首先,我们通过对20个科,38属,47种旱生植物种子在水分充足和不同梯度的干旱处理(聚乙二醇PEG6000)条件下的萌发率及吸水率实验发现,当水分胁迫强烈时,分布于干旱沙漠地区的植物种子其吸水率和萌发率都高于半干旱和湿润地区的植物群落,相反,湿润地区植物种子的吸水率和萌发率对任何的水分胁迫都表现出敏感的响应趋势,也就是说,生境恶劣的植物种子在较强的干旱胁迫下,仍然保持了较高较快的萌发率及吸水率,水分充足与水分缺乏时无显著差异,而生境相对较好的植物种子在水分充足情况下萌发与吸水良好,但在干旱胁迫时则受到明显抑制,水分充足与水分缺乏时差异显著。

The seeds of Achyranthes Bidentata from recoverable satellite were researched in the present study. The developing progress of the seeds, which were of the SP 1 from the seeds carried by satellite, was observed and analyzed, comparing with the control. Furthermore, the germinative indexes of the seeds from HT and CK were also observed.

利用返回式卫星搭载的中药牛膝种子为材料,与对照组牛膝种子相比较,对搭载后的牛膝种子SP 1植株的种子生长发育过程进行了观测和分析,并对SP 1植株获得的种子发芽及生长情况进行了进一步的观测。

When the Agropyron seeds were treated with 1.0kv.cm-1,the seedling rate,seedling length and root length increase by 4.5%,81% and 48% respectively,and treated with 4.5kv.cm-1,the seedling rate,seedling length and root length increase by 4.8%,84% and 66% respectively.

结果表明:不同电场对冰草种子萌发及幼苗生长产生不同的影响,用1.0 kv/cm电场强度处理冰草种子10 min,可提高种子出苗率4.5%,苗长增长81%,根长增长48%;用4.5 kv/cm电场强度处理冰草种子10 min,可提高种子出苗率4.8%,苗长增长84%,根长增长66%。

The first, as regards theory, Vijnaptimatrata regard that all the dharma (including material world and inner world) are created by the eight vijinana of citta-dharma, and the reason that vijinana can create all the dharma, is the bijas be hide in alayavijnana, this bijas can create all the dharma under some condition. And this dharma will vasana vijnaptimartata, enables its seed to be mature, like this continual create dharma, dharma vasana the bija, the bija turns round presently, This is the possible theory condition of transform vijnana into wisdom to be able.

首先就理论方面而言,唯识学认为世间万法(包括物质世界和精神世界),都是由心法八识所变现生起的,而识之所以能够变现世间万法,就在于在阿赖耶识中潜藏有万法的种子,该种子在一定条件会生起变现出世间万法,而生起的万法又熏习阿赖耶识,使其种子得以成熟,如此无间地生起现行,现行复熏习种子种子复起现行,这是转识成智得以可能的理论条件。

The seed of Camelina sativa contain 5.67% jelly which envelopes the seed and could absorb 181.31 times water. This might be the main cause that the seeds of Camelina sativa absorb more water in more rapid speed than wheat, which can explain the drought-resistance of Camelina sativa.

亚麻荠种子的外层胶质占种子总重的5.67%,可吸收181.31倍的水分,使种子在最初10min内即可吸收相当于自身重量8倍的水分,浸泡24h后吸水量达到10倍左右;而小麦种子浸泡24h后吸水量只有54.7%,据此认为这可能是亚麻荠种子抗旱性较强的原因。

The total seed storage in topsoil (0-10 cm) was 83499-109141 indm^(-2) for natural wetlands and 9140-47452 indm^(-2) for reclaimed paddy fields. In natural wetlands, the seeds were of 16-30 grass plant species, being dominant with Polygonaceae and Cyperaceae or Cyperaceae and Gramineae; while in reclaimed paddy fields, the seeds were of 7-16 grass plant species, with the dominant of Gramineae. The seed storage and species numbers were greater in Shengjin Lake than in Shibasuo Lake. Higher seed bank storage and more species were observed in the paddy fields from Shibasuo wetland with 30 years of cultivation than from the Shengjin Lake wetland with over 50 years of cultivation.

结果表明:天然湿地种子库密度为83499~109141粒m^(-2),而开垦为稻田30~50年后种子库密度为9140~47452粒m^(-2);天然湿地的土壤种子库物种数为16~30种,以蓼科-莎草科或莎草科-蓼科为优势种,开垦为稻田后物种数下降为7~16种,且趋向于以禾本科为单一优势种;此外,与十八索湿地相比,升金湖湿地有较高的土壤种子库物种数、丰富度和多样性,而开垦年限为30年的十八索稻田土壤种子库物种数和丰富度显著高于开垦年限为50年的升金湖稻田。

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