摘要: In previous chapters, we discussed plant growth and development as a continuous process that proceeds without interruption from the germination of seed to formation adult bearing flowers, fruits, seeds. most species, is not necessarily it may be suspended for varying periods time in life cycle. The mature common stage cycle when developmental arrest occurs. As well known, seeds can remain viable long time, yet they prevented if kept dry storage. Interpolation temporary period ability long-term survival under adverse environmental conditions have also evolved other organs such buds woody herbaceous plants shrubs tubers, bulbs, rhizomes. A feature displayed by these reduced growth; seeds, embryo blocked, whereas organs, shoot apical meristem inhibited.