XU Yuqin,XIE Shan,WANG Sihao,et al.Effects of Sowing Date on Yield and Main Agronomic Traits of Different Sorghum Varieties in Jiangxi Region[J].HEILONGJIANG AGRICULTURAL SCIENCES,2023,(05):15-19.[doi:10.11942/j.issn1002-2767.2023.05.0015]
播期对江西地区不同高粱品种产量及主要农艺性状的影响
- Title:
- Effects of Sowing Date on Yield and Main Agronomic Traits of Different Sorghum Varieties in Jiangxi Region
- 文章编号:
- 4
- Keywords:
- sorghum; sowing date; yield; yield traits
- 文献标志码:
- A
- 摘要:
- 为筛选出适宜江西地区种植的高粱品种,以龙杂19号、晋杂22号、吉杂228号、冀酿2号为试验材料,在江西地区进行3个播期处理(4月16日、4月25日和5月5日),调查播期对高粱产量及产量性状的影响。结果表明,播期能显著影响高粱生育进程,随着播期的推迟,出苗期、开花期、成熟期依次延后,但高粱全生育期缩短。播期对高粱株高影响不明显,对穗长影响随品种不同而不同;对穗粗和千粒重的影响则表现为随播期的延迟整体呈现先降后升的变化趋势;早播高粱各品种单穗重最大,产量最高。在供试品种中冀酿2号早播获得最高产量为385.1 kg·(667 m2)-1,综合性状表现最好。
- Abstract:
- In order to screen sorghum varieties suitable for Jiangxi, four northern sorghum varieties(Longza 19, Jinza 22, Jiza 228, and Jiniang 2) were treated with three sowing dates (April 16, April 25 and May 5) in Jiangxi to investigate the effects of sowing dates on sorghum yield and yield traits. The results showed that sowing date can significantly affect the growth process of sorghum. With the postponement of sowing date, the seedling emergence period, flowering period, and maturity period are successively delayed, but the entire growth period of sorghum was shortened. Sowing date had no significant impact on sorghum plant height, but its impact on ear length was different with different varieties. The effect of sowing date on spike diameter and 1 000-grain weight showed a trend of decreasing first and then increasing with the delay of sowing date. Early sowing sorghum varieties had the largest single spike weight and the highest yield. Among the tested varieties, Jiniang 2 obtained the highest yield of 385.1 kg·(667 m2)-1 by early sowing, with the best performance in comprehensive traits.
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备注/Memo
收稿日期:2022-11-15