[J].HEILONGJIANG AGRICULTURAL SCIENCES,2020,(09):20-23.[doi:10.11942/j.issn1002-2767.2020.09.0020]
不同播期和种植方式对糯玉米相关性状及产量的影响
- 文献标志码:
- A
- 摘要:
- 为了探索适宜黑龙江省西部地区的播期和种植方式,提高经济效益。试验采用二因素随机区组设计,品种选用京科糯2000,5月1-21日,每5 d设置一个播期,共5个播期,露天和白地膜覆盖2种种植方式,明确播期和种植方式对糯玉米植株性状、果穗性状和产量的影响。结果表明:随着播种期的推迟,京科糯2000的株高和穗位高呈现增加趋势,覆膜种植的株高和穗位高于露天种植,处理 A5B2(5月21日播种和地膜覆盖种植)达到最大值,株高为280.2 cm,穗位高为160.4 cm;穗长、穗粗、穗行数、行粒数无明显规律,A4(5月16日播种)时穗长和穗粗有最大值,分别为28.9和6.2 cm,覆膜种植的穗长大于露天种植的穗长;鲜百粒重和鲜果穗重无明显规律,覆膜种植可提高鲜百粒重和鲜果穗重,组合A4B2时有最大值,分别为61.4和328.1 g;小区平均产量逐渐增加,在A5时产量最高,露天和白地膜覆盖产量分别为32.5和33.4 kg,覆膜种植可增加产量。综合植株性状、果穗性状和产量指标,可以看出京科糯2000在A4播种期的表现较优,并采用覆膜种植,利于实现优质高产。
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备注/Memo
收稿日期:2020-05-25