The formation of chalkiness in rice grains can be influenced by various factors, including genetics, environmental conditions, and cultural practices. When comparing the inferior (lower) and superior (upper) positions of grains on the panicle, several reasons can explain why rice grains in the inferior position may exhibit more chalkiness:

It's important to note that the extent of chalkiness can also be influenced by genetic factors and specific rice cultivars. Some rice varieties may inherently have a higher tendency for chalkiness, irrespective of grain position. Additionally, agronomic practices such as irrigation, fertilization, and pest management can also influence grain quality.

Understanding these factors can help farmers and researchers implement appropriate strategies to minimize chalkiness in rice grains and improve overall grain quality.