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.
WANG Qiang-1, LIANG Tian-Feng-1*, TANG Mao-Yan-1, CHEN Lei-1, ZHANG Xiao-Li-1, CHEN Ren-Tian-1, CHEN Cai-Hong-1, LI Wei-2, 吕Rong-Hua-1 , ZHANG Zong-Qiong-1
. Analysis on Yield Difference of Super Hybrid Rice Guiliangyou 2 for Early Rice and Late Rice Planting in Guangxi Province[J]. China Rice, 2014
, 20(2)
: 66
-68
.
DOI: 10.3969/j.issn.1006-8082.2014.02.019
[1] 张洪程，戴其根，霍中洋，等. 水稻超高产栽培研究与探讨[J]. 中国稻米，2012，18（1）：1-14.
[2] Peng S B, Khush G S, Virk P, et al. Progress in ideotype breeding to increase rice yield potential[J]. Field Crops Res, 2008, 108: 32-38.
[3] 邓国富，梁世荣，周萌，等. 籼型水稻光温敏核不育系桂科-2S的选育[J]. 杂交水稻，2007，22（6）：14-17.
[4] 赵荣德. 超级稻桂两优2号在桂北稻作区的种植表现及高产栽培技术[J]. 现代农业科技，2012（7）：64-66.
[5] 敖和军，王淑红，邹应斌，等. 超级杂交稻干物质生产特点与产量稳定性研究[J]. 中国农业科学，2008，41（7）：1927-1936.
[6] Yang W H, Peng S B, Laza R C, et al. Yield gap analysis between dry and wet season rice crop grown under high-yielding management conditions[J]. Agron J, 2008, 100（5）: 1390-1395.
[7] Lobell D B, Cassman K G, Field C B. Crop yield gaps: their importance, magnitudes and causes[J]. Ann Rev Environ Resour, 2009, 34: 179-204.
