Application of led on plant growth unit in tomato cultivation

ŞENOL R., KILIÇ S., TAŞDELEN K.

Bangladesh Journal of Botany, cilt.50, sa.3, ss.523-529, 2021 (SCI-Expanded, Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 50 Sayı: 3
  • Basım Tarihi: 2021
  • Doi Numarası: 10.3329/bjb.v50i3.55831
  • Dergi Adı: Bangladesh Journal of Botany
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, CAB Abstracts, Veterinary Science Database
  • Sayfa Sayıları: ss.523-529
  • Anahtar Kelimeler: Chlorophyll, LED plant growth unit, Stomata, Tomato
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Hayır

Özet

Effects of Light Emitting Diode (LED) lamps on plant growth with different modulations on the tomato plant were investigated by applying under actual conditions in the greenhouses. Thus, four different pulse width modulation (PWM) systems from red and blue LEDS at different wavelengths were designed. Trials were performed by using direct current (Mode1), 5Khz-Φ= 0o (Mode2), 5Khz-Φ= 180o (Mode3) and 1Khz-Φ= 0o (Mode4) and the tomato grown under the sun at the same conditions were compared for controlling purposes. Stomata movements and total chlorophyll content of the tomatoes were examined, and the results were compared to the tomatoes that were grown under sun. The custom developed artificial four light source system, a treatment of Mode 2 produced the highest yield, while each treatment played its special role in regulating plant morphology and physiology.