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徐优3-2(徐80-7A×宁恢3-2)系我所1986年以本所转育的中粳不育系徐80-7A为母本,以江苏省农科院粮作所宁恢3-2恢复系为父本配组育成的杂交中粳新组合.经过几年的鉴定、品比、区试和生产试验、示范,表现高产、稳产,综合性状优良,耐肥抗倒性好,具有较强的适应性和较大的增产潜力.1993年4月通过江苏省品种审定委员会审定.现将该组合的选育经过、区试、生产试验、多点试种、制繁种表现以及栽培技术分述如下.
Xuyou 3-2 (Xu 80-7A × NingHuang 3-2) is a Chinese male sterile line Xu 80-7A which was transferred by our institute in 1986 as the female parent and Jiangsu Academy of Agricultural Sciences Ninghui 3-2 restorer line is a new combination of japonica japonica hybrid with japonica rice.After several years of appraisal, product ratio, zone test and production test, it demonstrated that it has high yield, stable yield and good comprehensive traits, Good, with strong adaptability and greater potential for yield increase in April 1993 through the Jiangsu Provincial Variety Approval Committee for approval. Now the combination of breeding after the district test, production test, multi-point trial, the system of traditional Chinese medicine The performance and cultivation techniques are described below.