中国油料作物学报2024，Vol.46Issue(3)：450-459,10.DOI:10.19802/j.issn.1007-9084.2024047
不同密度单粒精播对花生开花动态及结实特性的影响
Effect of different densities of single-seed sowing on flowering dynamics and fruiting characteristics of peanut
摘要
Abstract
To improve peanut yield,density effect of single-seed sowing was explored on flowering dynamics and fruiting characteristics.A common large peanut variety Huayu 25 was used as material,4 treatments of single-seed sowing of 278 000 plants·hm-2(S9,plant spacing 9 cm),208 000 plants·hm-2(S12,plant spacing 12 cm),167 000 plants·hm-2(S15,plant spacing 15 cm)and double-seed sowing of 278 000 plants·hm-2(D18,plant spacing 18 cm)were set under the same row spacing.Differences were investigated on flowering habits,needle formation,pod development dynamics,pod setting range and yield of peanut.Results showed that different densities of single-seed sowing could all promote peanut early flowering,with more flowerings.They increased the number of effective nee-dles and promoted pod development to different degrees.The effect was most obvious under low density conditions.From the perspective of population indicators,under single-seed precision sowing mode of 208 000 plants·hm-2,peanuts have the highest number of flowerings,effective needles,and pods,the largest pod volume,pod fullness,and the highest yield level.Different densities of single-seed sowing changed pod setting range and pod spatial dis-tribution of peanuts.The pod setting range increased with the decrease of density.However,most of the pods(more than 95%)in each treatment were still distributed within the spatial range of 6.0 cm radius.Under single-seed sow-ing of 208 000 plants·hm-2(plant spacing 12.0 cm),the pod setting range was close to half of plant spacing which was more conducive to uniform distribution of pod among populations.关键词
花生/单粒精播/密度/开花动态/结实特性Key words
peanut/single-seed sowing/density/flowering dynamic/fruiting characteristics分类
农业科技引用本文复制引用
梁晓艳,付娆,李佳佳,衣葵花,唐朝辉,郭峰,王建国,张佳蕾,万书波..不同密度单粒精播对花生开花动态及结实特性的影响[J].中国油料作物学报,2024,46(3):450-459,10.基金项目
国家重点研发计划(2022YFD1000105) （2022YFD1000105）
国家自然科学基金(32201917) （32201917）
山东省自然科学基金(ZR2022QC124、ZR2021QD157) （ZR2022QC124、ZR2021QD157）
泰山学者工程(tsqn202211275,tspd20221107) （tsqn202211275,tspd20221107）
