Onion Bulb Enlargement Is Suffering from Dayight Hours and Temperature

Onion Bulb Enlargement Is Suffering from Dayight Hours and Temperature

Onion Growing: Day length or daylight hours stimulates the onion plant to start making a bulb. To grow good bulb onions you need to know about how day length and temperature affect onion plant growth. Onions are photothermoperiodic; that means they are sensitive to temperature and also to daylight. Day length or daylight hours—determined by