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作者根据几内亚栽培稻种的起源、演化和栽培发展,将其分为亚洲稻 Oryzasativa L.和非洲稻 Oryza glaberrima steud.两个种,水稻和陆稻两群、感光敏感与不敏感两个型及载培品种四级,并分别论述了不同种、群、型的形态,特性和分布。研究结果表明:非洲稻目前仍广泛地分布在几内亚的腹地中几内亚。它的产量虽低于亚洲稻,但其耐瘠性特别强,可种在亚洲稻不能生长的瘠地,所以在可见的将来,不会被亚洲稻所代替。几内亚原来旱季(12月至翌年4月)不种稻,我农技组去后推广旱季引水种稻取得成功。但当地品种只有山地稻在旱季能抽穗成熟,其他品种多不能正常抽穗。研究表明这是因为山地稻感光性弱之故。
According to the origin, evolution and cultivation of Guinea’s cultivated rice species, the authors divided them into two types, Oryza sativa L. and Oryza glaberrima steud, two groups of rice and Upland rice, two types of light-sensitive and insensitive Four kinds of cultivars were cultivated, and the forms, characteristics and distribution of different species, groups and types were discussed respectively. The results show that African rice is still widely distributed in Guinea, the hinterland of Guinea. Although its yield is lower than that of Asian rice, its barren resistance is particularly strong and can be planted in barren land where Asian rice can not grow. Therefore, it will not be replaced by Asian rice in the foreseeable future. Guinea’s original dry season (December to April next year) does not grow rice, and I later went to promote the success of the dry season diversion rice. However, only the mountainous rice in the local varieties can be heading mature in the dry season, and the other varieties can not normally be heading. The research shows that this is because the mountainous rice is sensitive to light.