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博优258是广西大学支农开发中心利用自选恢复系测258与不育系博A配组,于1998年晚造育成的感光型晚籼杂交水稻新组合。该组合株高110 cm左右,生长势强,茎杆粗壮,熟期转色好,抗逆性强,全生育期123 d。2000年和2001年参加广西晚造区域试验,结果显示:博优258比对照博优桂99增产3.0%和3.2%,增产效果显著,2003年2月通过广西区农作物品种委员会审定。经多年多点生产试验,博优258表现高产、优质、多抗,产量一般7 500 kg/hm2,高产的达9 750 kg/hm2,至今累计推广面积29.26万hm2,已成为广西晚造主导品种。
BoYu 258 is a new combination of late indica hybrid indica rice cultivated at Guangxi Agricultural Science and Technology Development Center using self-recovery line 258 and sterile line BoA in late 1998. The plant height of about 110 cm, strong growth potential, stalks sturdy, good turn color, strong resistance, the whole growth period of 123 d. In 2000 and 2001, the experiment was carried out in late Guangxi area. The results showed that the yield of Bo You 258 was 3.0% and 3.2% higher than that of BoYaoGui 99, respectively. The yield increase was remarkable. In February 2003, it was approved by Guangxi Crop Variety Commission. After many years of trial production, BoYu 258 showed high yield, good quality and multi-resistance with a yield of 7 500 kg / hm2, a high yield of 9 750 kg / hm2 and a cumulative promotion area of 292.6 thousand hm2 so far. .