Titlebook: Seed Ecology; Michael Fenner Book 1985 Michael Fenner 1985 ecology.environment.fertility.growth.plants.soil.temperature.wind

渗漏

书目名称Seed Ecology影响因子(影响力)




书目名称Seed Ecology影响因子(影响力)学科排名




书目名称Seed Ecology网络公开度




书目名称Seed Ecology网络公开度学科排名




书目名称Seed Ecology被引频次




书目名称Seed Ecology被引频次学科排名




书目名称Seed Ecology年度引用




书目名称Seed Ecology年度引用学科排名




书目名称Seed Ecology读者反馈




书目名称Seed Ecology读者反馈学科排名

CONE

Predispersal hazards, that only 2.5% of the ovules survive the predispersal phase. The period between ovule formation and seed ripening can be one of the most hazardous in the plant’s life cycle. Demographic studies of plants tend to ignore this predispersal phase, and little is known of the selective pressures to which

cuticle

FORGO

骄傲

Dormancy,Dormancy is a delaying mechanism which prevents germination under conditions which might prove to be unsuitable for establishment. As long as the seed remains viable the possibility exists that it may eventually find itself more favourably placed.

LARK

Germination,ey encounter the appropriate environmental cues. Each species has its own characteristic set of germination requirements. The responses shown by seeds to the great variety of conditions to which they are subjected can be regarded as adaptations for maximizing the likelihood of surviving in a patchy

conference

Seedling establishment,e growth of the shoot and root proceeds, dependence on internal resources is gradually reduced and external supplies of carbon and minerals are exploited. A seedling is considered to be fully established when it has become effectively independent of its seed reserves. It is probable that in many cas

积云

Regeneration and diversity,eliminating the less competitive ones. The study of the ecological aspects of regeneration has contributed substantially to our understanding of (a) how species diversity is maintained in plant communities; (b) the origin of the distribution patterns of individual species, and (c) the causes of diff

动机

Seedling establishment,jays in early summer without apparent harm to the young plants (Bossema, 1979). In the durian (.), a heavy-seeded tropical tree, the large fleshy cotyledons are shed shortly after germination, yielding no apparent advantage to the seedling. A small minority of other rainforest trees share this characteristic (Ng, 1978).

有权威

Predispersal hazards, ripening ovules are subjected. From the point of view of the population geneticist, the differential survival of a particular combination of genes is of importance, regardless of the stage in the life cycle at which it occurs.