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为了探讨水稻旱作的可能性,并给选择适于旱作的水稻品种和研究合理栽培方法提供科学依据,1981～1984年连续对水稻品种在旱作条件下主要经济性状的变化规律,进行了观察研究。一、材料与方法选用辽宁省水稻优良品种(系)和杂交种。1981年为26份材料,1982年和1983年为25
In order to explore the possibility of rice dry farming and to provide scientific basis for selecting suitable rice cultivars for dry cultivation and reasonable cultivation methods, the variation regularities of main economic traits of rice cultivars under dry cultivation conditions from 1981 to 1984 were studied Observational study. First, materials and methods Selected Liaoning province excellent rice varieties (lines) and hybrids. 26 materials in 1981, 25 in 1982 and 1983