Akademik Veri Yönetim Sistemi
Yuzuncu Yil University Journal of Agricultural Sciences, cilt.33, sa.1, ss.140-149, 2023 (Scopus)
The aim of study was to investigate the effects of boron on germination
and seedling parameters of sorghum [Sorghum bicolor (L.) Moench] under
drought stress conditions. The experiment was conducted in a factorial trial in a
randomized plot design with four replication in a growth chamber. In this study,
three different sorghum cultivars were used. Drought conditions were performed
at three different levels using PEG (0.-0.4 MPa and -0.8 MPa). Four boron doses
(0-5-10-15 mM B) solutions are formed as boric acid (H3BO3). Parameters
measured in Gözde 80 were superior to other cultivars under drought stress
conditions. The maximum mean germination time, seedling viability index, shoot
and root length, shoot and root fresh weight, and total biomass, were detected as
4 days, 74%, 10 cm, 13 cm, 63 mg, 21 mg, and 80 mg, respectively. Differences
were noted in the response of different sorghum cultivars to drought stress, and
significant decreases were observed as the drought level increased. Low boron
applications generally increased germination and seedling parameters compared
to control under drought conditions. The boron effects applied to alleviate the
drought stress effects have been noticeably positive. Compared to control
conditions, the best results were also generally observed in the application of 5
mM B at a drought stress dose of -0.4 MPa. It was concluded that high doses of
boron applications caused double stress with drought and were even lower than
drought applications alone. It was recorded that due to the reasons listed above,
careful attention should be paid to the boron doses to be applied