Buzz-pollination Method by Wind for Tomatoes Using a Blower

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  • 送風機を用いたトマトの送風振動受粉法
  • ソウフウキ オ モチイタ トマト ノ ソウフウ シンドウ ジュフンホウ

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Treating flowers with phytohormones has been considered necessary for stable fruit setting in plastic house culture of tomatoes. Compared with buzz-pollination, which vibrates flower clusters mechanically, spraying phytohormones requires less labor but it produces a higher proportion of puffy fruits.<BR>Recently, a new buzz-pollination method, which pollinates flowers easily by vibration of flower clusters by wind using a blower, was developed. To examine the effectiveness of this new method, its labor intensity, rate of fruit setting and proportion of puffy fruits were compared with the conventional buzz-pollination method and phytohormone treatment.<BR>The working time of pollination per plant with the new buzz-pollination, conventional buzz-pollination and phytohormone treatments was 2.8, 7.5 and 6.7 seconds, respectively. Buzz-pollination must be administered two or three times per week whereas one phytohormone treatment per week is enough. Estimated total pollination time of the new buzz-pollination method ranged from 8.2 to 9.6 hours per 1a, almost the same as the phytohormone treatment. This indicates that there is little difference in the labor intensity between the new buzz-pollination and the phytohormone treatment. Moreover, the rate of fruit setting in the new buzz-pollination was equal to the phytohormone treatment and no puffy fruit was observed with the new buzz-pollination.<BR>These results indicate that the new buzz-pollination is a useful method for stable fruit setting in plastic house culture of tomatoes.

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