期刊论文

The “3-3-3” Technology for Higher Seed Vigor of Hybrid Rice Seed Production and Its Application

中文

杂交水稻

1005-3956

2019

34

3

56-60

10.16267/j.cnki.1005-3956.20180316.078

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).

本校为第一机构

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 su...