| dc.description.abstract | A pot experiment was conducted at the research field of Crop Physiology and
Ecology Department, Hajee Mohammad Danesh Science and Technology University
(HSTU), Dinajpur in boro Season December 2016 to June 2017, to find out the
effect of salinity level on growth and yield attributes of rice varieties. The
experiment was laid out in two factorial Completely Randomized Design (CRD)
with 3 replications. Seven rice varieties (BRRI dhan28, BRRI dhan47, BRRI
dhan61, BRRI dhan74, Pokhali, BINA dhan8 and BINA dhan10) were used for this
study. The rice plants were grown in plastic pots with 10 kg soils under different soil
salinity treatments such as control, 8 dSm-1 and 12 dSm-1 to assess their performance
on morpho-physiological parameters, yield and yield contributing characters. Plant
height, tiller number per hill, no. of panicle per hill, panicle length (cm), filled
spikelet per panicle, spikelet per panicle, straw weight, and 1000 grain weight, total
grain weight was decreased gradually with the increase of salinity levels. But the
SPAD value at 70 DAT, flowering date, unfilled spikelet per panicle, harvesting
time, and spikelet sterility increased gradually with the increase of salinity levels.
The variety BINA dhan8 showed the highest performance followed in BINA dhan10
in every 3 salinity levels. On the other-hand BRRI dhan74, Pokhali, BRRI dhan47
showed moderate performance. BRRI dhan28 and BRRI dhan61 was found
susceptible to elevated saline levels and showed the lowest value in all parameters. | en_US |
