研究のタイプ: 医学/生物学の研究 (experimental study)

[イチゴの一種であるCamarosaの収穫量および成長に対する磁界の影響] med./bio.

Effect of magnetic fields on yield and growth in strawberry 'Camarosa'.

掲載誌: J Hortic Sci Biotechnol 2003; 78: 145-147

この研究は、温室において、イチゴの一種であるCamarosaに静磁界MFばく露を行い、収穫量および成長への影響を調べた。磁束密度0.096、0.192、0.384 TのMF群および対照群(地磁気)を比較した。その結果、対照群および高MF群(0.192、0.384 T)に比べ、低MF群(0.096T)の方が個体当たりの収穫量および平均果実重量が高かった、などいくつかの所見を報告している。

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研究目的(著者による)

To investigate the effects of extremely low frequency magnetic fields on the fruit yield and growth of the strawberry 'Camarosa' in greenhouse conditions.

詳細情報

At the end of June 2001, the strawberry plants were planted in the greenhouse. Magnetic field treatment began in November 2001 and ended in June 2002 until the end of the experiment. Matured fruits were harvested twice a week. At the end of the experiment, the plants were uprooted and examined.
The plants were randomly subjected to a control group or to one of the three experimental groups (magnetic flux densities of 96, 192 and 384 mT). For every treatment four replicates (10 plants, respectively) were performed.

影響評価項目

ばく露

ばく露 パラメータ
ばく露1: 50 Hz
ばく露時間: November 2001 to June 2012

ばく露1

主たる特性
周波数 50 Hz
タイプ
  • magnetic field
ばく露時間 November 2001 to June 2012
ばく露装置
ばく露の発生源/構造
  • electrical wires
ばく露装置の詳細 For the different magnetic field strength, increasing numbers of the electrical wires were fixed about 30 cm above the plants; the electric wires carried alternating current at 220V and 50 Hz; a 40 W bulb was attached to the end of electric wires
パラメータ
測定量 種別 Method Mass 備考
磁束密度 96 mT - 測定値 - -
磁束密度 192 mT - 測定値 - -
磁束密度 384 mT - 測定値 - -

ばく露を受けた生物:

方法 影響評価項目/測定パラメータ/方法

研究対象とした生物試料:
調査の時期:
  • ばく露中
  • ばく露後

研究の主なアウトカム(著者による)

In plants exposed to a magnetic flux density of 96 mT and 192 mT, the yield per plant was significantly higher compared to the control group. However, no significant difference in the yield was observed between the strongest magnetic field exposed group (384 mT) and the control group. In all magnetic field exposed groups, the average fruit weight was significantly increased compared to the control group.
At the end of the experiment, the exposed plants had significantly more leaves and showed a significantly increased fresh and dry weight of the roots, while number of crowns and leaf area were not significantly altered.
The authors conclude that extremely low frequency magnetic fields with a certain magnetic flux density could have a positive effect on both fruit yields and growth.

研究の種別:

研究助成

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