HORTICULTURE

Detailed explanation-1: -Self pollination leads to more uniform progeny, meaning that the species is, for example, less resistant as a whole to disease. However, it does not need to expend energy on attracting pollinators and can spread beyond areas where suitable pollinators can be found.

Detailed explanation-2: -During self-pollination, the pollen grains are not transmitted from one flower to another. As a result, there is less wastage of pollen. Also, self-pollinating plants do not depend on external carriers. They also cannot make changes in their characters and so the features of a species can be maintained with purity.

Detailed explanation-3: -The seeds are in smaller quantities. New plant varieties cannot be created. Because the endosperm is so little, the seeds produced are feeble.

Detailed explanation-4: -Characteristics of self-pollinated flowers Flowers are generally small, less attractive and without nectar. Less number of pollen grains are required. Seed Produced through self-pollination are small, light in weight and less in number. Progenies of self-breeding plants exhibit less vigour.

Detailed explanation-5: -Self-pollination leads to the production of plants with less genetic diversity since genetic material from the same plant is used to form gametes and, eventually, the zygote. In contrast, cross-pollination leads to greater genetic diversity because the male and female gametophytes are derived from different plants.