中国稻米
中國稻米
중국도미
CHINA RICE
2014年
6期
78-80
,共3页
直播稻%品种%播期%株型%穗部性状
直播稻%品種%播期%株型%穗部性狀
직파도%품충%파기%주형%수부성상
direct seeded rice%variety%sowing date%plant type%ear characters
通过研究淮稻5号、武育粳3号、武运粳21号等3个品种不同播期对直播水稻株型及穗部性状的影响，以期塑造直播水稻理想株型。结果表明，在海丰种植条件下，直播水稻最佳播期为6月上旬。随着播期推迟，株高下降，下部节间增长，上部节间变短；同一品种在播期推迟情况下，一次枝梗数、二次枝梗数及每穗粒数均呈减少趋势，不同品种减少幅度存在差异；在推迟播期情况下，武运粳21号、淮稻5号的株高与穗型受到的影响比武育粳3号小，产量的影响也相对较小。
通過研究淮稻5號、武育粳3號、武運粳21號等3箇品種不同播期對直播水稻株型及穗部性狀的影響，以期塑造直播水稻理想株型。結果錶明，在海豐種植條件下，直播水稻最佳播期為6月上旬。隨著播期推遲，株高下降，下部節間增長，上部節間變短；同一品種在播期推遲情況下，一次枝梗數、二次枝梗數及每穗粒數均呈減少趨勢，不同品種減少幅度存在差異；在推遲播期情況下，武運粳21號、淮稻5號的株高與穗型受到的影響比武育粳3號小，產量的影響也相對較小。
통과연구회도5호、무육갱3호、무운갱21호등3개품충불동파기대직파수도주형급수부성상적영향，이기소조직파수도이상주형。결과표명，재해봉충식조건하，직파수도최가파기위6월상순。수착파기추지，주고하강，하부절간증장，상부절간변단；동일품충재파기추지정황하，일차지경수、이차지경수급매수립수균정감소추세，불동품충감소폭도존재차이；재추지파기정황하，무운갱21호、회도5호적주고여수형수도적영향비무육갱3호소，산량적영향야상대교소。
An experiment was carried out in Shanghai Haifeng Modern Agriculture Co LTD, to study the effects of different sowing date on plant type and ear characters of direct seeded rice of Huaidao 5, Wuyujing3, Wuyunjing21. The preliminary results were as follows: the best sowing date of direct seeded rice was in early June in Haifeng region. With delayed sowing date, the plant heights, upper internodes, the number of primary branches and secondary branches, the grain number per panicle were decreased, the lower internodes were increased. The delayed sowing date had less effects on ear characters, plant heights and yields of Wuyunjing 21 and Huaidao 5 than that of Wuyujing 3.
