PENGARUH LAMA PENYINARAN KOMBINASI LAMPU LED DAN LAMPU NEON TERHADAP PERTUMBUHAN DAN HASIL TANAMAN PAKCOY (Brassica rapa L.) DENGAN HIDROPONIK SISTEM SUMBU (WICK SYSTEM)
ABSTRACT: This research aimed
to find out the lighting length of the combination LED and fluorescent lamps
combined, suitable to grow pakcoy (Brassica rapa L.) with wick system hydroponics. The research used five treatments: sun lighting
as a control (P0), and artificial lighting of 36-watt LED combined with 42-watt
fluorescent lamps. Sun lighting represented
a conventional cultivation,
with normal lighting
period (±12 hours per
day), while the artificial lighting consisted of four
different lighting lengths per day: 8 hours (P1), 12 hours (P2), 16 hours (P3) and
20 hours (P4). The artificial lighting
experiments were placed in boxes as the growth chambers, while the regular sun
lighting treatment was placed in an outdoor mini greenhouse. Each treatment
consisted of four plants,so there were 20 plants in total. The results showed that 20-hour treatment of
36-watt LED lamp plus 42-watt fluorescent lighting (P4) was the best among the
other artificial lighting treatments, but
still less optimal as compared to the treatment of natural sun lighting
(P0). The plants grew in treatment P4
still showed etiolating,indicating possibility of using higher power than
36-watt LED lamp and 42-watt fluorescent, although the length of lighting
reached 20 hours. Yet, in term of
quality, the mineral/ash content of all treated plants was not much different.
Penulis: Yesi Lindawati,
Sugeng Triyono, Diding
Suhandy
Kode Jurnal: jppertaniandd150138
