Transcript of Stages of Plant Growth
GERMINATION VEGETATIVE GROWTH REPRODUCTION POLLINATION FERTILISATION DISPERSAL JUVENILE ADULT GERMINATION VEGETATIVE GROWTH REPRODUCTION POLLINATION FERTILISATION DISPERSAL JUVENILE ADULT GERMINATION VEGETATIVE GROWTH REPRODUCTION POLLINATION FERTILISATION DISPERSAL JUVENILE ADULT Germination is the process by which plants emerge from seeds and begin growth. The growth of the embryonic plant from the seed forms a seedling. Germination is controlled by abiotic (non-living) factors such as light levels, temperature and water availability. The seed is dormant until is germinates. During the vegetative growth stage, the plant grows rapidly, providing most of the stem, leaf and root growth in order to provide the plant with the nutrients and water it needs. Rapid vegetative growth. No flowers - no reproductive activity. Growth of vegetative structures peaks. Plant reaches sexual maturity - flowers bloom. The flower has reached its mature stage and is ready to be pollinated. Male part of the flower - Anther: contains pollen grains (male gametes). Female part of the flower - Stigma: contains the ovules (female gametes). For sexual reproduction, pollen from the anthers of another plant is transferred to the stigma of the plant. In asexual reproduction, the anthers of the same plant pollinate the stigma. The pollen can be transferred by the wind, insects or animals. After the plant is pollinated, the ovule is fertilised (male and female gametes meet) - this requires the pollen to enter the ovule via a pollen tube. The ovary then starts to swell and develops into a fruit containing the seeds. It is important for a plant to spread its seeds as far away from the parent plant as possible - the avoids competition for resources. Seeds can be contained within fruit or as part of a seed head. Seeds can be spread in a number of ways:Full transcript
humans Stages of Plant Growth Learning Objective To be able to model the life cycle of a plant and explain the different stages of plant development. Plant is capable of reproduction and is said to be 'reproductive mature' or 'adult'. Flowers begin to develop but not yet mature. TRANSITIONAL TASK 2 You need to produce a large flow diagram explaining the different stages of plant growth.