AIIMS 2017 Botany Gibberellins MCQ Question

Cytokinin is a plant growth hormone that promotes cell division and elongation, particularly in stems, which can lead to increased height and yield in sugarcane. This hormone enhances the plant's ability to utilize nutrients and water, ultimately contributing to higher sugar production. In contrast, ethylene (B) primarily regulates fruit ripening and leaf abscission, gibberellic acid (C) stimulates stem elongation and seed germination but is less specific for sugar yield in sugarcane, and auxin (D) primarily influences root development and phototropism rather than directly increasing sugar yield through stem length. Understanding the specific roles of these hormones is crucial for optimizing agricultural practices.