| 播种密度对小麦西农585生长特性及产量性状的影响 |
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| 引用本文： | 刘佳熠,苏丹,李晓荣,龙小惠,杨美悦,宋璐,马晓红,刘喆,常辉,于艳梅.播种密度对小麦西农585生长特性及产量性状的影响[J].现代农业科技,2023(17). |
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| 作者姓名： | 刘佳熠 苏丹 李晓荣 龙小惠 杨美悦 宋璐 马晓红 刘喆 常辉 于艳梅 |
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| 作者单位： | 西安市农业技术推广中心,西安市临潼区农技推广服务中心,陕西省农业技术推广总站,西安市临潼区农技推广服务中心,西安市农业技术推广中心,西安市农业技术推广中心,西安市临潼区农技推广服务中心,西安市农业技术推广中心,西安市农业技术推广中心,西安市农业技术推广中心 |
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| 摘 要： | 为研究播种密度对优质强筋小麦西农585生长特性及产量性状的影响，在固定播期的基础上，进行了不同播种密度（86kg?hm-2、129kg?hm-2、172kg?hm-2、215kg?hm-2、258kg?hm-2）的试验。结果表明：播种密度对越冬期的单株分蘖、次生根数和拔节期的叶龄、次生根数影响显著；对不同生育时期群体大小影响显著，且群体基本苗数、冬前最大茎蘖数、春季最大茎蘖数随着播种密度的增加而增加；对株高、穗下第一节间长、基部第一节间长、基部第二节间长影响不显著，对穗长影响显著；对产量、成穗数和千粒重影响显著，且产量和成穗数随着播种密度的增加表现出先增加后减少的趋势，当播种密度为172kg?hm-2时产量最高，成穗数最大。因此，播种密度对西农585生长特性及产量性状影响较大，西农585在关中灌区生态条件下适宜播种密度为172kg?hm-2左右。
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| 关 键 词： | 小麦 西农585 播种密度 产量 农艺性状 |
| 收稿时间： | 2022/12/23 0:00:00 |
| 修稿时间： | 2022/12/23 0:00:00 |
Effect of Planting Density on Growth Characteristics and Yield Traits of Wheat Xinong 585 |
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| Abstract: | In order to study the effect of planting density on the growth characteristics and yield traits of high-quality and strong gluten wheat Xinong 585, on the basis of fixed sowing date, experiments were conducted on different planting densities(86kg?hm-2, 129kg?hm-2, 172kg?hm-2, 215kg?hm-2, 258kg?hm-2). The results indicated that the planting density had a significant effect on the number of tillers and secondary roots per plant in overwintering period, and the leaf age and secondary roots in jointing period. It had a significant impact on the population size at different growth stages, and the basic number of seedlings, the maximum number of tillers before winter, and the maximum number of tillers in spring increased with the increase of planting density. It had no significant effect on plant height, length of the first internode under ear, length of the first internode at the base, length of the second internode at the base, but had a significant effect on ear length. It had significant influence on yield, number of ears and 1000 grain weight, and the yield and number of ears increased first and then decreased with the increase of planting density. When the planting density was 172kg?hm-2, the yield and the number of ears were the highest. Therefore, the planting density has a great impact on the growth characteristics and yield traits of Xinong 585. The suitable planting density of Xinong 585 is about 172kg?hm-2 under the ecological conditions of Guanzhong irrigation area. |
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| Keywords: | Wheat Xinong 585 Planting density Yield Agronomic traits |
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