УДК 633.18:631.524.84:57.04
PRODUCTIVITY INDICES IN RICE VARIETIES OF NATIVE SELECTION UNDER HEIGHTENED TEMPERATURES IN CONNECTION WITH GLOBAL CLIMATE CHANGE PROBLEM
E.M. Kharitonov, Yu.K. Goncharova
In 30 rice varieties of native selection in the conditions of vegetation experiment and climate chambers the authors studied the influence of various temperature regimes (20, 25 and 35 oС) on productivity indices in connection with duration of influence and phase of plants development. The structure of studied varieties was investigated upon families’ number discriminate in empty seeds indices in connection with temperature. It was revealed that the duration of stress influence and the moment of the beginning determinate not only stress intensity but the character of physiological changes.
Key words: rice, interspecies variability, resistance, high temperatures.
ГНУ Всероссийский НИИ риса, |
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