Q1: Potassic fertilisers do not promote the development of

ANS:A - stems & leaves during early stage of plant growth.

Potassic fertilizers primarily promote the development of starches in potatoes and grains, and sugar in fruits and vegetables. Potassium (K), an essential nutrient in potassic fertilizers, plays a crucial role in carbohydrate metabolism and transport within plants. It helps in the synthesis and translocation of sugars, starches, and other carbohydrates. While potassic fertilizers contribute to overall plant health and growth, including root development and disease resistance, they are particularly important for promoting the accumulation of carbohydrates in crops like potatoes, grains, fruits, and vegetables. These carbohydrates serve as energy reserves for plants and are vital for their growth, development, and reproductive processes. Therefore, the statement "starches of potatoes & grains" and "sugar of fruits & vegetables" accurately describe the effects of potassic fertilizers, emphasizing their role in carbohydrate accumulation rather than the development of stems, leaves, or fibrous materials of plants.