What factor primarily affects the quality of cotton fiber?

Water availability is a critical factor that primarily influences the quality of cotton fiber. The quantity and timing of water available during the growth stages of the cotton plant play an essential role in fiber development. Adequate moisture ensures optimal growth, allowing the plant to utilize nutrients effectively and producing longer, stronger, and more uniform fibers. Insufficient water can lead to stress in the plant, resulting in shorter fibers that are weaker and of lower overall quality.

While soil composition, temperature during growth, and pest presence also impact cotton fiber quality, the influence of water availability is often more direct and pronounced. Proper irrigation practices and maintaining adequate soil moisture levels are essential in producing high-quality cotton, demonstrating why this factor is of utmost importance in the cultivation process.