Factors Affecting Seed Germination. It restores the diploid condition by fusion of haploid male and female gametes. Biology Notes Class XII As Per CBSE (NCERT) Books Chapter Wise-Notes PDF ( Board Level ) ... post fertilization events-development of endosperm and embryo, development of seed and formation of fruit; Special modes-apomixis, parthenocarpy, polyembryony; Significance of seed dispersal and fruit formation. When a pollen grain. lands on the stigma of a flower of the correct species, a pollen tube begins to grow. Significance of double fertilization is as follows: It gives stimulus to the plant due to which ovary develops into fruit and ovules develop into seeds. Forming seeds and fruit Fertilisation. If you're having any problems, or would like to give some feedback, we'd love to hear from you. Fruits and Seeds. Wind dispersed seeds and fruits have a variety of adaptations which help them to be carried away by wind. The fruits and seeds with specialized devices which may be in the form of spongy and fibrous outer walls as in coconut and spongy thalamus as in lotus, ... Class 12. Class 5 Class 6 Class 7 Class 8 Class 9 Class 10 Class 11 Class 12. Light seeds: Seeds of some plants are sufficiently light and minute in size to easily carry away to great distance by air currents.(E.g. ... ISC Previous Year Question Papers class 12 It results in the formation of diploid zygote, which develops into an embryo and gives rise to a new plant. Explore more: Significance of Seeds and Fruits Formation. For general help, questions, and suggestions, try our dedicated support forums. Temperature: This affects the growth rate as well as the metabolism of the seed. Fruits - Formation, Parts and Types of Fruits As we all know, trees are usually named and recognized by their fruit such as an apple tree, a mango tree, and so on. If you need to contact the Course-Notes.Org web … Seeds are a protective structure that lets a plant embryo survive for long periods of time before it germinates. There are some major factors that affect seed germination. Water: The poor or additional supply of water affects the seed germination. Fruits and seeds are not only essential in the life cycle of flowering plants; they are also utilized as sources of food. Advantages of seed formation in plants: Seeds provide a protective coat so that the embryo plant can develop when it finds a nice piece of soil. One or more flower takes part in the formation of fruit. These include: External Factors. The key difference between fruit and seed is that fruit is the developed ovary of angiosperms after fertilization while seed is a fertilized ovule of plants.. Pollination is the process of transferring pollen from anthers to the stigma of the flowers. In a few species, a special mechanism has evolved to produce seed and fruit. 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