EVALUATION AND TESTING OF TROPICAL RICE VARIETIES UNDER TEMPERATE CLIMATE IN RUSSIA

Breeding of rice varieties for Northern temperate regions always faces difficulty and therefore needs to have diverse sources of materials collected from tropical regions. A study of the collection of tropical rice materials with economically important quantitative traits has been carried out and a considerable variation was found. A positive correlation was recorded between the panicle length and plant height; weight of panicles and weight of 1000 grains; the number of grains per panicle and the ratio of fertile grains. The study results will provide pre-breeding materials for improving productivity and resistant ability of popular rice varieties in Russia.