Effects of Transplanting Date on Growth of Fall-sown Onion Seedlings with Same Sowing Date in Northern Tohoku Region of Japan

Key Points

• This research investigates how different transplanting dates affect the growth and yield of fall-sown onion seedlings.
• Conducted experiments in Northern Tohoku Region, Japan.
• Maintained the same sowing date but varied transplanting dates.
• Measured growth metrics, including bulb weight and relative growth rate (RGR).
• Earlier transplanting dates resulted in heavier bulb weights.
• Bolting rates remained low regardless of transplanting dates.
• Relative growth rates were higher for earlier transplanting dates, suggesting better initial growth.