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亚洲栽培稻(Oryza sativa L.)已有7,000多年的栽培历史,不少稻作学家提出,该种可进一步区分为印度型,日本型或中国型,及爪哇型。由于杂交重组,遗传分化及生态适应,加上自然选择和人工选择,又进一步分化出不同的栽培类型和生态型。例如,布鲁生态型(bulu)为爪哇型中的一个品种群,有芒,种植于印尼诸岛,菲律宾及台湾也有种植;奥斯生态型(aus)属印度型亚种,早熟,对光周期钝感,在印度孟加拉邦及孟加拉国,作夏稻种植;而印度型和中国型中均有陆稻
Asian cultivated rice (Oryza sativa L.) has been cultivated for more than 7,000 years and many rice growers have suggested that the species can be further divided into Indian, Japanese or Chinese and Javanese. Due to hybrid recombination, genetic differentiation and ecological adaptation, coupled with natural selection and artificial selection, further differentiation of different types of cultivation and ecological type. For example, the bulu is a breed of Javanese species, with Mount, planted in the Indonesian islands, the Philippines and Taiwan also planted; the austerity of the genus Indo-type subspecies, precocious, light Cycle insensitive, in India Bengal and Bangladesh, for summer rice planting; and Indian-type and Chinese-type are paddy