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conferenceseries
.com
Volume 6, Issue 4 (Suppl)
Agrotechnology, an open access journal
ISSN: 2168-9881
Agri 2017
October 02-04, 2017
allied
academies
10
th
International Conference on
AGRICULTURE & HORTICULTURE
October 02-04, 2017 London, UK
Plant growth and leaf morphological change of
Spinacia oleracea
grown under different light-emitting
diodes
EunYoung Choi
1
, MyungOk Lee
1
and
KyungRan Do
2
1
Korea National Open University, South Korea
2National Institute of Horticultural and Herbal Science, South Korea
T
his study aimed to determinate effects of light-emitting diodes on leaf morphology and growth of two cultivars (world-star
and sushiro) of
Spinacia oleracea
. Plants were grown for 25 days after transplanting (DAT) under the LEDs (White (W),
Red and Blue (RB, ratio 2:1), Blue (B), Red (R) LED) under the same light intensity and photoperiod (130 μmol m
-2
s
-1
, 12
hours). Higher fresh and dry leaf weights, leaf number and leaf area were observed in the world-star cultivar, in which a 35%
increase in leaf dry weight was found in both the RB and R LEDs than the B and W at 25 DAT. In the sushiro cultivar, the leaf
dry weight was in the order of RB>R>B>W at 25 DAT. Leaf apinasty symptom was appeared in plants grown under both R and
RB LEDS with much more severe degree of symptom under the R LED. Microscope analysis indicates that the cell size of leaf
margin region was larger than that in the leaf blade region in the apinasty symptom-developed leaf. The chlorophyll content
and photosynthetic activity were lower in the leaves grown under the R LED. All the integrated results suggest that the B or W
LED is a proper light condition due to the leaf apinasty symptom for a closed cultivation of
Spinacia oleracea.
ch0097@knou.ac.krAgrotechnology 2017, 6:4(Suppl)
DOI: 10.4172/2168-9881-C1-028