花生产量相关性状与气象因子多环境相关性分析

Peanut yield-related traits and meteorological factors correlation analysis in multiple environments

花生(Arachis hypogea L.)是重要的经济和油料作物,提高花生产量对保障油料安全和农民增收具有积极作用。2013—2016年,本研究利用11个花生品种共77环境的花生产量相关性状数据和气象数据,分析了花生产量相关性状与气象因子的相关性。研究发现,主茎高和侧枝长与平均气温、全生育期光照时数、平均昼夜温差和平均风速极显著相关;分枝数与全生育期≥10℃活动积温和平均昼夜温差极显著相关;单株结果数和单株饱果数与全生育期光照时数和全生育期降水量极显著相关;荚果产量与全生育期≥10℃活动积温、全生育期降水量、平均昼夜温差和平均气温极显著相关。本研究对指导各地规划花生种植期、提高花生产量具有重要指导意义。

Peanut(Arachis hypogea L.)is an important cash and oil crop,and increasing peanut yield has a positive effect on the ensuring edible oil security and increasing farmers income.In this study,the correlation analysis were conducted between peanut yield-related traits of 11 varieties and the meteorological data in 77 environments from 2013 to 2016.We found that main stem height and branch length were extremely significantly correlated with the average temperature,all-growth-stage sunshine duration,the average diurnal temperature variation,and the average wind speed.Branch number was extremely significantly correlated with the all-growth-stage≥10℃accumulated temperature and the average diurnal temperature variation.Pod number per plant and mature pod number per plant were extremely significantly correlated with the all-growth-stage sunshine duration and precipitation.Pod yield was significantly correlated with the≥10℃ accumulated temperature,the precipitation in the whole growth period,the average diurnal temperature variation,and the average temperature.It is important guiding significance for planning peanut planting and improving peanut yield in various regions.