Biology
Answer
The process of hybridization is used to produce new varieties of plants with desired characteristics. In this process two different varieties of a crop plant with the desired characteristics are selected. After selection of these varieties, cross-breeding is done by artificial pollination to get a variety of plants which has both the desired characteristics from the parent varieties. This is called hybridization. The new variety formed is called a hybrid.
Related Questions
Describe different types of pollination.
Write the features of a flower pollinated by wind.
Correct the sequence of the following steps to describe the process of fertilization in plants.
- The pollen grain begins to grow a pollen tube.
- The pollen grain is deposited on the stigma.
- The pollen tube grows down through the style to the ovary.
- The fusion of the male gamete with the female gamete occurs inside an ovule.
- A male gamete travels down each pollen tube.
- The nucleus of pollen tube divides to form male gametes.
The diagram illustrates the structure of a flower.
- Identify the parts labelled a to e.
- Which part produces pollen grains?
- Which part receives pollen grains for pollination?