Agronomy Degree Practice Exam

Which nutrient is essential for flowering and fruiting in plants?

1. Nitrogen

2. Phosphorus

3. Potassium

4. Magnesium

The correct answer is: Phosphorus

Phosphorus is a key nutrient essential for flowering and fruiting in plants. It plays a critical role in the formation of DNA, RNA, and ATP (adenosine triphosphate), which are vital for energy transfer and genetic material in plants. Phosphorus is particularly important during the flowering stage, as it helps stimulate bud formation and flowering, leading to better fruit set and development. When phosphorus is adequately supplied, plants experience improved root development and stronger overall growth, which contributes to higher yields of flowers and fruit. In many cases, a deficiency in phosphorus can result in delayed flowering, reduced fruit quality, and lower overall harvests, emphasizing its necessity during these critical growth stages.