“三三三”杂交水稻高活力种子生产技术与示范应用

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英文篇名：The “3-3-3” Technology for Higher Seed Vigor of Hybrid Rice Seed Production and Its Application 作者：王晓敏 ; 唐启源 ; 郑华斌 ; 黄情 ; 莫文伟 英文作者：WANG Xiao-min;TANG Qi-yuan;ZHENG Hua-bin;HUANG Qing;MO Wen-wei;College of Agronomy, Hunan Agricultural University; 关键词：杂交水稻 ; 制种 ; 种子活力 英文关键词：hybrid rice;;seed production;;seed vigor 中文刊名：ZJSD 英文刊名：Hybrid Rice 机构：湖南农业大学农学院; 出版日期：2019-04-12 10:50 出版单位：杂交水稻 年：2019 期：v.34;No.196 基金：农业部公益性行业(农业)科研专项(201303002);; 国家水稻产业体系(CARS-01-30) 语种：中文; 页：ZJSD201903016 页数：5 CN：03 ISSN：43-1137/S 分类号：60-64

摘要

阐述了以"三适、三养、三早"为特征的"三三三"杂交水稻高活力种子生产技术内容及相关研究进展。"三适"是指适宜的制种区域、适宜的栽插密度和适宜的父母本颖花量,简称适地、适密和适量;"三养"是指养不育系的柱头活力、养受精的籽粒和养后期的稻穗,简称养花、养粒和养穗;"三早"是指早进行肥料的施用、早结束人工辅助授粉作业和早实施种子的收获,简称早施、早结和早收。2017年进行了多点多组合大面积示范,通过"三适""三养"和"三早"各项技术的集成应用,种子活力均高于对照,其中发芽率提高1.8～7.3个百分点,活力指数提高0.5～2.5,且对制种产量无影响。
        The contents and research progress were related of the "3-3-3" technology for higher seed vigor of hybrid rice seed production, which is characterized with "3-suitability" "3-raising" and "3-early". "3-suitability" refers to the suitable seed production location, suitable planting density and suitable amount of parental spikelets. "3-raising"refers to raising the vigor of stigma, the number of superior spikelets and the post-ripeness of panicles. "3-early" refers to the earlier fertilizer application, the earlier finishing of supplementary pollination and the earlier harvest. In 2017,the technology was demonstrated in the hybrid rice seed production with different hybrid varieties at five locations of different seed companies. The results showed that, by way of the technology, the seed yield was not different but the seed vigor was better than the control, with the germination rate and vigor index of hybrid rice seeds increased by1.8 ～ 7.3 percent points and 0.5 ～ 2.5, respectively.

引文

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