不同早稻品种在金华地区直播栽培的农艺性状及产量表现

Agronomic Characters and Yield Performance of Different Early Rice Varieties under Direct Seeding Cultivation in Jinhua Area

[目的]筛选出适宜在金华地区规模种植的生育期短、抗性好、稳产高产的早稻品种。[方法]采用直播栽培模式,进行不同早稻品种的对比试验,了解不同早稻品种的农艺性状及产量情况。[结果]金早09生育期适中,成穗率高,有效穗数足,但结实率偏低;中早39产量高,但生育期偏长,应适期早播或机插栽培以提高产量;中组143全生育期最短,有利于后茬连作晚稻提早栽插,且成穗率高,穗型大,粒数多,结实率高,产量表现最好。[结论]针对中早39、中组143大穗型品种,为实现高产应以主攻大穗、增加穗粒数和结实率为主。

[Objective] The aim of this study was to screen out early rice varieties suitable for large-scale planting in Jinhua with short growth period,good resistance and stable yield. [Method] The direct seeding cultivation mode was adopted to conduct the comparative test of different early rice varieties to understand the agronomic traits and yield of different early rice varieties. [Result] Jinzao 09 had moderate growth period,high spike rate,enough effective spikes,but low seed setting rate. The yield of Zhongzao 39 was high,but the growth period was long,so it should be early sowing or mechanical transplanting to improve yield. The whole growth period of Zhongzu 143 was the shortest,which was conducive to the early planting of late rice after continuous cropping,and had high spike rate,large spike type,more grains,high seed setting rate and the best yield performance. [Conclusion] For Zhongzao 39 and Zhongzu 143 varieties with large spikes,in order to achieve high yield,the main measures should be to attack large spikes,increase grain number per spike and seed setting rate.