宽窄行种植对高粱光合特性、产量和品质的影响
Effects of Wide and Narrow Row Planting on Photosynthetic Characteristics,Yield,and Quality in Sorghum
屈洋 1马雯 1张飞 2王可珍 1苟飞凡 3高小丽 4冯佰利4
作者信息
- 1. 宝鸡市农业科学研究院,陕西 岐山 722499
- 2. 辽宁农业科学院高粱研究所,辽宁 沈阳 110161
- 3. 礼泉甘河国家湿地公园管理处,陕西 礼泉 713200
- 4. 西北农林科技大学,陕西 杨凌 712100
- 折叠
摘要
以辽粘3 号为试验材料,在宽窄行种植条件下(宽行 60 cm、窄行 40 cm),设置 3个种植密度105 000 株/hm2(WL),112 500 株/hm2(WM),120 000 株/hm2(WH),等行距种植(50 cm,种植密度120 000 株/hm2)为CK,研究不同种植密度条件下宽窄行种植对高粱光合特性、农艺特性、产量和品质的影响.结果表明,不同处理叶片SPAD值综合得分和光合特性综合得分顺序为WL>WM>WH>CK.不同处理的株高、穗长、穗粒重和千粒重存在差异(P<0.05),其中WL处理的株高最高、穗长最长、穗粒重和千粒重最大.WL处理的产量与其他处理差异显著(P<0.05),两年平均产量8 444.96 kg/hm2.与CK相比,宽窄行种植可明显提高籽粒的单宁含量、淀粉含量和脂肪含量,但对蛋白质含量的影响较弱,WL、WM和WH处理的各品质指标差异不显著.相较于等行距种植,宽窄行种植可改善高粱叶片的光合性能,影响农艺性状和产量,在种植密度 105 000 株/hm2 的条件下,辽粘3 号宽窄行种植可在关中西部地区获得较大的产量优势.
Abstract
To investigate the effects of the density and wide and narrow row planting(wide rows at 60 cm,narrow rows at 40 cm)on SPAD,agronomic characteristics,photosynthetic characteristics,yield,and quality of sorghum'Liaonian 3',a field experiment was conducted.Different plant population densities were tested:(10.5×104 plants/hm2(WL),11.25×104 plants/hm2(WM),12.0×104 plants/hm2(WH),with a control(CK)consisting of the same row spacing of 50 cm and a density of 12.0×104 plants/hm2.The results showed that SPAD and photosynthetic characteristics followed the order of WL>WM>WH>CK.Significant differences(P<0.05)were observed in plant height,spike length,spike grain weight,and 1000-seed weight among treatments.WL showed significantly higher yield compared to other treatments(P<0.05),with an average yield across seasons of 8 444.96 kg/hm2.Compared to CK,the tannin content,the starch content,and the fat content of different treatments increased,while the protein content remained consistent.Quality indexes did not change significantly among treatments.Each quality index among treatments showed no difference.Compared to equidistant row planting,wide and narrow row planting improved photosynthetic capacity,agronomic characteris-tics,and yield of sorghum.Therefore wide and narrow row planting with a plant density of 10.5×104 plants/hm2 has an advantage on yield in sorghum'Liaonian 3'in the western Guanzhong region.
关键词
宽窄行种植/高粱/光合特性/产量/品质Key words
Wide and narrow row planting/Sorghum/Photosynthetic characteristics/Yield/Quality引用本文复制引用
基金项目
陕西省技术创新引导专项(2022QFY02-04)
国家谷子高粱产业技术体系建设项目(CARS-06-13.5-A22)
陕西省小杂粮产业技术体系建设项目(2023)()
辽宁省农科院学科绩效后补助项目(2022-HBZ-1008)
出版年
2024
NETL
NSTL
万方数据