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杂交水稻“四优30”(即V_(41)A×IR_(30)、V_(41)A×IR_(30)-1、V_(41)A×IR_(30)-2)是由我所一九七五年用V_(41)A不育系与从IR_(30)株系中选配测交、培育成功的.一九七五年在海南试制、鉴定.一九七六年在所内试种.一九七七年在全省各地试种.一九七八年在全省各地较大面积示范(三万亩左右),表现高产抗病,深受群众欢迎,定名“四优30”.在一九七八年全省杂交水稻19个组合中,增产显著、产量第一,平均亩产915.1斤,比四优二号亩增40斤,是我省即将大面积推广的杂交水稻新组合.
The hybrid rice “Siyou 30” (V_ (41) A × IR_ (30), V_ (41) A × IR_ (30) -1, V_ (41) A × IR_ (30) -2) In 1975, the V_ (41) A male sterile line and the selected line from IR_ (30) were tested for mating and breeding successfully, and were trial-produced in Hainan in 1975. In 1976, In 1977, we experimented and experimented throughout the province. In 1978, a large-scale demonstration (about 30,000 hectares) in all parts of the province showed high yield and disease resistance and was well received by the masses. It was named "Siyou 30 In 1978, the province’s hybrid rice 19 combinations, a significant increase in output, the output of the first, the average yield of 915.1 kg, 40 acres than the Si You 2 acres, is the province to promote a large area of hybrid rice New combination.