Which environmental factor affects the fiber quality of cotton?

Humidity during growth and harvest significantly affects the fiber quality of cotton due to its impact on the physiological processes of the cotton plant. During the growth phase, adequate humidity levels are essential for proper nutrient absorption and for minimizing stress on the plant. High humidity can promote healthy fiber development by creating a favorable environment for cotton bolls to form and mature.

During harvest, humidity levels also play an important role. High humidity can lead to increased moisture in the harvested cotton fibers, which can affect the ginning process, cause issues with fiber integrity, or result in issues like mildew and spoilage. Proper humidity management is crucial for maintaining the required quality standards of cotton fibers for spinning and other uses.

Temperature does influence cotton plant growth and the duration of the growing season, but it is the humidity that has a more direct and pronounced effect on fiber quality through moisture content and overall plant health. Soil color and altitude can influence other aspects of cotton production, but they do not have a direct impact on fiber quality like humidity does.