What solar term is the jointing stage of wheat?

Wheat jointing stage is a shocking solar term. Wheat jointing stage is the normal growth of wheat. When the temperature rises above 10℃ in spring, the basal internodes of wheat begin to elongate, and when the internodes are exposed to the ground 1.5-2.0cm, it is called jointing stage. The main sign of jointing stage is that the internode grows about 2 cm above the ground. After jointing, tillering is quick, effective and ineffective, and the boundary is gradually clear. From jointing stage to heading stage, the growth rate of wheat is the fastest and largest. The organs such as ear, leaf and stem are promoted at the same time, and the leaf area, ear length and ear volume increase exponentially or dozens of times, and the dry matter accumulation also enters a stage of rapid growth.

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