Wheat is highly susceptible to hot, dry winds and premature senescence during its mid-to-late growth stages, especially from heading to grain filling. This leads to insufficient grain filling, reduced thousand-grain weight, and severely impacts yield. The scientific use of Brassinolide is a key measure to enhance wheat's resistance to stress and prevent hot, dry winds and premature senescence.
The Core Role of Brassinolide in Stress Resistance and High Yield
Brassinolide is a broad-spectrum, highly effective plant growth regulator. Its role in wheat stress resistance and high yield is mainly reflected in the following aspects:
1. Enhancing Resistance to Hot, Dry Winds: Hot, dry winds cause rapid water loss in wheat leaves, hindered photosynthesis, and interrupted grain filling.
Brassinolide can regulate the physiological metabolism of wheat, delay leaf senescence, maintain flag leaf function, improve photosynthetic efficiency, and enhance root vitality, helping wheat better absorb water and nutrients under high temperature and low humidity conditions, thereby mitigating the damage from hot, dry winds and increasing thousand-grain weight.
2. Preventing Premature Senescence: Decreased root vitality and insufficient nutrient supply in the later stages of wheat growth easily lead to premature senescence. Brassinolide promotes nutrient transport to the ears, maintains leaf greenness, prolongs grain filling time, effectively prevents premature aging of the plant, and ensures full grains.
3. Synergistic Yield Increase: Brassinolide can not only function alone, but also be scientifically mixed with foliar fertilizers, fungicides, and insecticides to achieve "one spray, multiple protections," significantly increasing yield while preventing diseases and pests, hot and dry winds, and premature aging.
