杂交中籼稻新品种比较分析
2016-10-21丁显萍刘礼明
丁显萍 刘礼明



摘要[目的]鉴定杂交中籼稻新品种的丰产性、适应性和综合抗性,为江淮稻区推广主导品种提高科学依据。[方法]采用方差分析及最小显著极差法对比研究11个中籼稻新品种(Ⅱ优838、两优383、荃优822、新两优223、协优107、Ⅱ优024、徽两优348、丰两优80、开优8号、冈优1577、金优R源5)。[结果]参试品种全生育期皆在适宜范围内;较对照Ⅱ优838增产的有6个品种,较对照减产的有4个品种,各品种较对照产量呈极显著差异。[结论]筛选出适合江淮稻区乃至周边地区种植的高产、多抗、优质的杂交稻新品种徽两优348、新两优223、荃优822、两优383、Ⅱ优024等。
关键词杂交中籼稻;新品种;筛选
中图分类号S511.2+1文献标识码A文章编号0517-6611(2016)04-068-03
Comparative Research of New Varieties of Indica Hybrid Rice
DING Xianping1, LIU Liming2 (1. Anhui Winall Hitech Seed Co., Ltd., Hefei, Anhui 230008; 2. Yuan Institute of Agricultural Science, Luan, Anhui 237009)
Abstract[Objective] To identify the adaptability, yielding ability and comprehensive resistance of new varieties of Indica hybrid rice, and to provide scientific basis for the dominant species extension in Jianghuai rice region. [Method] A total of 11 new varieties of indica hybrid rice were compared by variance analysis and least significant ranges (LSRSSR). [Result] The whole growth stages of tested varieties were all within the suitable range. Compared with the control Ⅱ You 838, six varieties showed increase in yields, and four varieties decreased. All the varieties showed extremely significant differences with the control. [Conclusion] Highyield new varieties of Indica rice suitable for Jianghuai rice region and its surrounding areas are screened, which are Huiliangyou 348, Xinliangyou 223, Quanyou 822, Liangyou 383, Ⅱ You 024 and so on.
Key wordsIndic hybrid rice;New varieties;Screening
目前中籼稻选育、审定及推广品种较多,农民在购种时存在一定的盲目性。为了及时准确鉴定水稻新品种的丰产性、适应性和综合抗性,结合当前江淮稻区生产实际,提高农民购种的准确性,2015年笔者对部分中籼稻新品种进行对比研究,为江淮稻区推广主导品种提供科学依据。
1材料与方法
1.1参试品种共计11个品种,分别为Ⅱ优838(CK)、两优383、荃优822、新两优223、协优107、Ⅱ优024、徽两优348、丰两优80、开优8号、冈优1577、金优R源5。
1.2试验点概况试验设在安徽省六安市裕安区徐集镇徐集村农科队(116°27′08″E,31°43′09″N,海拔 32 m) ,前茬空闲田,土种属黄白土田,土壤质地中壤,肥力中等偏上,灌排方便。水稻生长发育期间光照、温度、降雨等气候条件属正常年份。
1.3试验设计与方法采用随机区组排列,3次重复,小区面积13.34 m2,行株距20.0 cm×23.1 cm,每穴栽1粒种子苗。重复间设过道40.0 cm,四周设保护行1.5~2.0 m。……
