Characteristics of rice root growth under salt stress
1993
Dutt, S.K. | Bal, A.R. (Regional Research Station, Canning Town, South 24 Parganas, West Bengal 743329 (India). Central Soil Salinity Research Inst.)
CSR-1 had greater root volume than M1-48 at both tillering and flowering stages. Roots of CSR-1 were concentrated in the 15-30 cm layer; those of M1-48 were mainly in the 0-15 cm layer. Salinity did not affect root distribution pattern. As salinity increased, root volume and maximum root length were significantly reduced in M1-48 but not in CSR-1, and root dry matter increased marginally in CSR-1. Plant water content and relative water content of leaves in both varieties, but especially in M1-48, showed a downward trend with increase in salinity and age. Sodium concentration in roots increased significantly as salinity increased. Variety M1-48 accumulated more sodium than CSR-1 during tillering and flowering stages
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