两系籼型杂交水稻桂两优2号是广西首个超级稻品种，由广西农业科学院水稻研究所育成，具有高产、稳产、抗倒伏、适应性广等特点。桂两优2号可作早、晚稻两用，并且早稻产量高于晚稻。试验结果表明，结实率高和单位面积颖花量大是桂两优2号作早稻比作晚稻产量高的主要原因，并提出了缩小晚稻与早稻产量差距的栽培管理技术。
王强1, 梁天锋1*, 唐茂艳1, 陈雷1, 张晓丽1, 陈仁天1, 陈彩虹1, 李炜2, 吕荣华1, 张宗琼1
. 超级稻桂两优2号在广西多个生态点作早晚稻种植的产量差异分析[J]. 中国稻米, 2014
, 20(2)
: 66
-68
.
DOI: 10.3969/j.issn.1006-8082.2014.02.019
Guiliangyou 2 is the first super rice variety of Guangxi Province, bred by rice research institute of Guangxi academy of agricultural sciences, with the characters of high and stable yield potential, wide adaptability and high lodging resistance. Guiliangyou 2 can be grown as both early rice and late rice, the yield of early season rice was higher than that of late season rice. The results indicated that higher grain yield of early season rice was partly rely on greater spikelets per m2 and higher seed setting rate. Some cultivation techniques were suggested to reduce the yield difference.
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