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Relationships between downbursts in Shimodate [Japan] and damage to Japanese pears [Pyrus pysrifolia]  [2001]

Tahira, K. (Ibaraki-ken. Horticultural Research Inst., Iwama (Japan)) Suzuki, N. Katagiri, S.

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Abstract
The relationships between downbursts in Shimodate and Japanese Pear Damage were examined. Effects of Downbursts in 1996 1. The fruit drop of Japanese pear variety 'Kosui' was 51.8% where garden A was damaged heavily, and 36.8% for Japanese pear variety 'Hosui'. The fruit drop for 'Kosui' was 14.9% where garden B was damaged lightly, and was 0% for 'Hosui'. 2. Fruit cracking in 'Kosui' was 77.2% where garden A was damaged heavily, and 19.5% in 'Hosui'. 3. The leaf fall from current shoots in 'Kosui' was 71.8% where garden A was damaged heavily, and was 78.8% in 'Hosui'. The leaf fall from current shoots in 'Kosui' was 9.3% where garden B was damaged lightly, and 8.4% in 'Hosui'. 4. The fruit cluster leaf damage in 'Kosui' was 43.8% where garden A was damaged heavily, and 49.2% in 'Hosui'. The fruit cluster leaf damage in 'Kosui' was 1.1% where garden B was damaged lightly, and 1.9% in'Hosui'. 5. The yield per 1 square meter of 'Kosui' in garden A was 0 kg, and 1.6 kg in garden B. The yield per 1 square meter of 'Hosui' in garden A was 0 kg, and 4.4 kg in garden B. Effect of Downbursts in 1997 6. The yield per 1 square meter of 'Kosui' in garden A was 3.8 kg, and 4.0 kg in garden B. The yield per 1 square meter of 'Hosui' in garden A was 6.2 kg, and 6.3 kg in garden B. 7 Making use of axillary buds in 'Kosui' in garden A was 13.1%, and 42.7% in garden B. Making use ofaxillary buds in 'Hosui' in garden A was 1.4%, and 32.2% in garden B. 8 The leaf fall from c
urrent shoots of 'Kosui' was 71.8%, where garden A was damaged heavily, and 78.8% in 'Hosui'. The yield per 1 square meter of 'Kosui' and 'Hosui' the following year met our expectations, but did not use axillary buds.
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Other subjects

  • damage
  • weather hazards
  • atmospheric disturbances
  • pyrus pyrifolia
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Other information

Language : Japanese

Type : Summary

In AGRIS since : 2005

Issue : 9

Start Page : 1

End Page : 8

All titles :

" Relationships between downbursts in Shimodate [Japan] and damage to Japanese pears [Pyrus pysrifolia] "