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#3400

Assessment of the growth of floating rice lines and resistant to

salinity at the seed germination and seedling growth stage

1
1
T P Quí , B X Khanh , N T T Xuan , V T X Tuyen , N T T Hau and A
3
2
2
4
Ardi
1 Centre for Applied Research and Technology Transfer, Institute of Science,
Technology and Training, Kien Giang University, no 320A, route 61, Minh
Luong town, Chau Thanh district, Kien Giang Province, Vietnam
2 Crop Science Department, Faculty of Agriculture, Viet Nam National
University Ho Chi Minh City - An Giang University, no 18, Ung Van Khiem
Street, Dong Xuyen ward, Long Xuyen city, An Giang Province, Vietnam
3 Biology Department, Agriculture and Development Faculty, Kien Giang
University, no 320A, route 61, Minh Luong town, Chau Thanh district, Kien
Giang Province, Vietnam
4 Crop Science Department, Laboratories Faculty of Agriculture, Andalas
University, Campus Limau Manis - 25136 Padang, West Sumatra, Indonesia

E-mail: tranphuocqui.agu@gmail.com

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 in the seed germination and seedling growth stage. The study
illustrated salinity stress caused a reduction in all of the growth of lines when salinity levels
increased as among the growth of lines, 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 impact of salt stress on the growth of lines in both stages
were good CQS28 and less CQS44.

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