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以23个晚稻品种为材料,在湖南省长沙县进行大田试验,研究土壤酸化对晚稻产量的影响,并比较了品种耐酸性差异。结果表明:1各品种在普通大田产量为5226.6~9202.1kg/hm2,在酸化大田产量为3643.2~7714.8 kg/hm2,品种间差异显著;2与普通大田比较,酸化大田条件下岳优6135、华优18、金优284和Ⅱ优46产量提高,增幅为3.24%~26.33%,其他品种产量均下降,降幅为2.04%~56.79%;3根据产量变化的显著性,供试品种可分为3种类型,五丰优T025、荆楚优148、岳优6135、深优9586、湘丰优103、中优288、农香18、汕优432、Ⅱ优6号和中9A/R10402属酸性敏感型,五优308、准两优608、丰源优227、丰优1167、丰源优299、T优272、中9A/R9963属酸性中间型;岳优9113、金优284、深优9588、华优18、Ⅱ优46和Ⅱ优3027属酸性迟钝型。
A total of 23 late rice cultivars were used for field experiments in Changsha County, Hunan Province to study the effects of soil acidification on the yield of late rice. The differences in acid tolerance of cultivars were also compared. The results showed that: 1 The yield of each variety in common field was 5226.6-9202.1kg / hm2, and the yield in acidified field was 3643.2-7714.8 kg / hm2. There was significant difference among varieties. 2 Compared with common field, Yueyou 6135 and Hua The yield of You 18, Jinyou 284 andⅡyou 46 increased by 3.24% -26.33%, while the yield of other varieties decreased by 2.04% -56.79%. 3 According to the significant changes of yield, the tested varieties could be divided into 3 Type, Wufengyou T025, Jingchuuyou 148, Yueyou 6135, Shenyou 9586, Xiangfengyou 103, Zhongyou 288, Nongxiang 18, Shanyou 432, Ⅱyou 6 and Zhong 9A / R10402 were acid sensitive Yueyou 9113, Jinyou 284, Shenyou 9588, Jinyou 284, Fuyouyou 227, Fengyou 1167, Fengyuyou 299, Tanyu 272, Huayou 18, Ⅱ You 46 and Ⅱ You 3027 are acidic slow type.