植物学雑誌
Online ISSN : 2185-3835
Print ISSN : 0006-808X
ISSN-L : 0006-808X
植物の生活形と染色體數との連關についての考察
向坂 道治
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ジャーナル フリー

1951 年 64 巻 753-754 号 p. 93-98

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There are remarkable dissimillarities of plant habits between the plants with small numbers of chromosomes and those with large numbers. In herbaceous plants, those with small numbers of chromosomes have short life (annual habit), while those with large numbers have long life (perennial habit). These two groups of plants differ from each other in fertility, activity, adaptability and hybridity. There are gradual dominance of vegetative propagations (by rhizome, tuber, bulb, bulbil, or runner) over seed propagation, in diploid than polyploid plants.
Diploid plants propagate by seed, while polyploid ones become less fertile and npropagate vegetatively, forming special life forms.
Diploid plants seem to have much wide distribution by seed in most favourably warm and humid areas, while distribution of polyploid plants is limitted, propagating more vegetatively in less favourable areas.

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© 公益社団法人 日本植物学会
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