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Selection of Rice Varieties Suitable for Direct Seeding under a Submerged Soil Condition by Using the Effective Thermal Index in Hokkaido, in Northern Japan
Cumulative air temperature Effective thermal index Grain-filling period Submerged direct-seeding
2009/7/8
The seeding date and heading date (HD) in direct seeding cultivation under a submerged soil condition were examined with three rice varieties at 27-40 sites of Hokkaido in 1999-2003. The effective th...