Akademik Veri Yönetim Sistemi
Mustafa Kemal University Journal of Agricultural Sciences, cilt.24, ss.313-319, 2019 (Hakemli Dergi)
Aims: The
purpose of this study was to determine sensitivity of okra against water stress,
and also examined plant growth, yield components, water consumption and water
use efficiency under water stress conditions.
Methods
and results: Different water amounts were applied to
determine response of okra (Abelmoschus
esculentus L. Akköy 41) to water stress in a study conducted in
Tokat/Turkey. The irrigation treatments consisted of the applications of 100%,
75% and 50% of depleted water from root zone of okra. The experiment was
designed according to randomized block with three replications. Soil moisture
along okra growing season was monitored by gravimetric method. Water
consumption and fresh fruit production were found 664 mm and 28690 kg/ha, 596
mm and 24691 kg/ha and 506 mm and 20554 kg/ha for I100, I75
and I50 treatments, respectively. Fresh fruit yield and total dry
biomass above ground were significantly affected from water stress but fruit
numbers and fruit yield per plant, mean fruit weight, dry fruit yield, harvest
index, irrigation water use efficiency and water use efficiency were not
affected significantly.
Conclusions: Okra was
found sensitive against water stress for fresh fruit yield with yield response
factor of 1.22 while it was found tolerant for dry fruit yield with yield
response factor of 0.71. Dry matter ratio of fruit increased from 15.1% for I100
to 18.0% for I50 treatment. It can be concluded from the results
that okra under water stress promoted fruit yield against vegetative growth
because of its increasing harvest index.
Significance
and impact of the study: When okra grown under full irrigation
conditions it should be marked as fresh to obtain higher profits. When okra
exposed to water stress it should be marked after drying to prevent profit
lost.