How many Degree Days (DD60s) are needed to reach the first square stage in cotton?

Prepare for the Cotton Specialist Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

The first square stage in cotton development typically requires a range of Degree Days (DD60s) to reach optimal growth conditions. The correct range, 425 to 475 DD60s, is supported by understanding the growth stages of cotton plants as they develop.

Degree Days are calculated based on the temperature accumulation that a crop requires to progress through its growth stages. In the case of cotton, this range reflects the combination of factors such as temperature patterns, moisture availability, and overall plant health that influence the timing of reaching the first square stage, which is a critical transitional phase in bolting before flowering.

As temperatures accumulate to the specified Degree Days, cotton plants will enter this reproductive stage, which is essential for later yield development. This specific range has been established through extensive agricultural research and practices, making it a fundamental piece of knowledge for anyone working in cotton agronomy.

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