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Kensuke Kageyama, Yoshimasa Hayashi, Anamu Kanno, Takenobu Sakai2020 Volume 32 Issue 1 Pages 1-5
Published: January 31, 2020
Released on J-STAGE: January 31, 2020
JOURNAL FREE ACCESSSimultaneous measurement system of AE at the stem and illuminance, temperature and humidity of the ground surface in greenhouse cultivation tomatoes was developed and the simultaneous measurement were carried out at two sites. AE occurrence rate tended to decrease in winter similar to humidity deficit HD. Most AE occurred in the daytime though the daily fluctuation behavior of HD and AE events differed by the site. The rank correlation coefficients, RV1h and RV6h using hourly differentials of AE events and HD, and those from 6h moving average values, respectively were derived. As the result, the strong correlation found between average value of RV1h of the whole period and yield Y, and there was also the weak correlation between monthly average value of RV1h and Y.
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