Give a reason for the following. Pollen grains of wind pollinated flowers are produced in large quantities.

Pollination is the transfer of pollen from an anther of a plant to the stigma of another plant, later enabling fertilisation and the production of seeds. The method of pollination can be biotic or abiotic. Biotic pollination relies on living pollinators to move the pollen from one flower to another, whereas abiotic pollination relies on wind, water or even rain. Wind pollinated flowers produce pollen grains in a huge quantity because much pollen may be wasted on the way. So to ensure the chance of pollination, pollen grains of wind-pollinated flowers are produced in large quantities.

Define parthenocarpy.

Parthenocarpy, also called stenospermocarpy, refers to natural or artificially induced production of fruit without fertilisation of ovules, whose result is the formation of seedless fruits. Naturally, it occurs as a result of mutation. Parthenocarpy can be valuable also as these fruits can serve as a "decoy defence" against seed predation. It also provides foods for the plant's seed dispersers. Parthenocarpy is of two types, which are vegetative parthenocarpy and stimulative parthenocarpy.

What is emasculation?

Emasculation can be best defined as the removal of male reproductive parts (anthers) from a bisexual flower without affecting the female parts (pistil) before the anthers mature. This method is used for preventing self-pollination (transfer of pollen grains from the anther to the stigma of the pistil of the same flower) in a bisexual flower.