Question

The application of synthetic plant hormone like IAA, IBA and NAA are best described as?

• A. Prevent early fruit fall before harvesting and its used to produce parthenocarpic fruit
• B. Prevent early fruit tall only
• C. To produce both seed less fruits with seeds
• D. To produce larger fruit

Answer 1

The correct option is A Prevent early fruit fall before harvesting and its used to produce parthenocarpic fruit

• IAA (Indole acetic acid), IBA ( Indole butyric acid) and NAA (naphthalene acetic acid) these 3 are the type of auxin hormones which is a growth hormone that is using produced at the apical tips of the growing plants.
• They have been widely used in agriculture and horticulture field which is used to promote growth in plants that are grown by cutting methods and also to prevent early ripening of the fruit and dropping of the leaves which retains the nutrients for more time in the plants and allows the fruit to grow bigger in size.
• This is also used in producing parthenocarpic fruits ie the fruits that are formed without fertilization. eg parthenocarpic tomatoes.

So, the correct answer is 'Prevent early fruit fall before harvesting and its used to produce parthenocarpic fruit'.