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四优30(即V41A×IR30)和威优30(即V20A×IR30)既具有丰产的结构又具有稳产特性.近四年受到群众欢迎,推广面积逐年扩大,已成为我省当家杂交水稻新组合之一.由于它具有弱感光性,所以只宜在华南作晚稻.一、选育经过根据国外资料介绍,IR30是多抗品种.在一九七五年早季试种,发现其熟期比IR24早.因此,设想利用它早熟、多抗的特点,培育一个比四优2号既早熟又抗病的新组合.
Siyou 30 (V41A × IR30) and Weiyou 30 (V20A × IR30) both have high yield structure and stable yield characteristics, which have been welcomed by the masses for nearly four years and have been expanded year by year and have become the new hybrid rice combination of our province Because of its weak photosensitivity, it is only suitable for late rice in South China.First, breeding According to foreign information, IR30 is a multi-resistant varieties.In early 1975 trial and found that the maturity ratio Therefore, it is envisaged to utilize the characteristics of its precocious and polyclonal to cultivate a new combination that is both premature and disease resistant than Siyou 2.