As wheat is an essential crop that plays a critical role in the world’s food supply, it is essential to ensure that the wheat plant is healthy and produces maximum yield. One of the ways to do this is through the use of wheat growth regulators. Growth regulators are chemical compounds that are used to improve the growth and development of crops by manipulating the plant’s physiology.
At the heading stage, wheat crop is in the reproductive phase. This phase is a critical period where the wheat plant is vulnerable to disease and other environmental stressors that can significantly impact yield. Wheat growth regulators can be used at this stage to mitigate the negative effects of stressors and ensure that the plant produces the maximum yield.
One of the most commonly used growth regulators during this stage is gibberellic acid (GA). Gibberellic acid is a naturally occurring plant hormone that is responsible for regulating plant growth, including stem elongation, fruit enlargement, and seed germination.
When applied to wheat crops at the heading stage, gibberellic acid can help increase the length of the wheat spike, leading to larger grains and a higher yield. It can also help reduce the number of small, unproductive tillers and increase the number of productive grains per spike.
Another growth regulator commonly used at this stage is chlormequat chloride (CCC). Chlormequat chloride works by inhibiting gibberellin production, which leads to the reduction of stem elongation and plant height. This, in turn, results in shorter, sturdier plants that are more resistant to lodging.
Lodging is a common problem during the heading stage, where wheat crops are susceptible to being flattened by wind, rain, or their own weight. Lodged crops can lead to significant yield losses due to poor grain quality and difficulty in harvesting. The use of chlormequat chloride can help mitigate the risk of lodging, ensuring optimal grain yield.
Overall, the use of growth regulators such as gibberellic acid and chlormequat chloride at the heading stage can help improve the yield and quality of wheat crops. However, it is essential to ensure that the correct application rates and timings are followed to prevent overuse and potential damage to the crop.