Brief introduction of cotton growth cycle

1, cotton is annual woody. Annual woody refers to a solid plant that germinates, grows, blooms and then dies in a year, and its roots and stems thicken to form a large number of xylem, and its cell walls are mostly lignified. In other words, the growth cycle of cotton is one year.

2. The growth of cotton has experienced four seasons: spring, summer, autumn and winter, and there are 1 1 6 solar terms from the vernal equinox to beginning of winter (from the middle and late April to the middle of the month). The whole life can be divided into five stages: sowing stage, seedling stage, bud stage, flowering stage and boll setting stage.

3. Cotton is the seed fiber of Malvaceae, which is native to subtropics. Shrub plants can grow to 6 meters high in tropical areas, generally 1 to 2 meters, mainly distributed in China, the United States, India, Uzbekistan, Egypt and so on.