Assessment of the growth of floating rice lines and resistant to salinity at the seed germination and seedling growth stage

Abstract

The growth of 11 floating rice lines had already been a selection when affected by salinity stress. The method demonstrates that the amount of NaCl (0, 1, 3, 5 g/l) was irrigated into lines in a plastic round box after seeds were been nurseries on 2 days, where the growth of lines was affected by salt stress during seedling growth and germination. The study illustrated that the stress caused by salinity causes a decrease in all currents development as the salinity level increases between the growth of the currents, the coleoptile length, the number of roots, root length, fresh and dry weights varied downward trends more than 50% and germination percentage created from 96.30% to 92.55%, from zero to 5 g/l NaCl at the seed germination stage. This stage, it is apparent that the CQS28 line was the best coleoptile length (4.21 cm), the number of roots (3.72 roots), root length (12.88 cm), fresh weight (0.92 g/10 seedlings), dry weight (0.13 g/10 seedlings) and germination percentage (98.50%) overall and the CQS44 line was the lowest. These did not change when the effect of saline stress on the growth of lines in both the period was good CQS28 and less CQS44.