郑农花15号适宜播期和密度研究  

Study on Suitable Sowing Date and Density for Peanut‘Zhengnonghua 15’

作　　者：胡延岭[1] 刘软枝[1] 李盼[1] 石彦召[1] 于沐[1] 朱桢桢[1] 韩艳红[1] 杨海棠[1] 别海[1] HU Yanling;LIU Ruanzhi;LI Pan;SHI Yanzhao;YU Mu;ZHU Zhenzhen;HAN Yanhong;YANG Haitang;BIE Hai(Zhengzhou Institute of Agriculture and Forestry Sciences,Zhengzhou,Henan 450005 China)

机构地区：[1]郑州市农林科学研究所,河南郑州450005

出　　处：《陕西农业科学》2022年第10期43-48,共6页Shaanxi Journal of Agricultural Sciences

基　　金：河南省重大专项(豫科计[2015]141100110600);郑州市科技惠民计划项目(2020KJHM0037)。

摘　　要：研究以郑农花15号为材料,设置5个不同播期和密度梯度,分析对其生育进程、农艺性状和产量的影响。结果表明,播期能显著影响郑农花15号的生长发育进程,随播期的推迟,各生育阶段天数有不断缩短的趋势,全生育期也随之变短,而密度对生长发育进程的影响不显著。播期和密度对郑农花15号农艺性状的影响显著,同一播期下,随播种密度增加,郑农花15号株高、侧枝长、分枝数、结果枝数等农艺性状均呈下降趋势。同一密度下,分枝数、株高和侧枝长整体上随播期的推迟逐步降低,而结果枝数、单株果数和百果重随播期的推迟先升高后降低。郑农花15号的适宜播期为4月25日至5月25日,适宜播种密度为15万~19.5万穴/hm^(2),其中5月5日播期和18万穴/hm^(2)的播种密度,最有利于发挥其高产潜力,研究结论为高产大果花生新品种郑农花15号的深入利用及推广提供了指导。In this study,‘Zhengnonghua 15’was used as the material,and five different sowing dates and density gradients were set to analyze its effects on growth process,agronomic characters and yield.The results showed that the sowing date could significantly affect the growth and development of‘Zhengnonghua 15’.With the delay of the sowing date,the days of each growth stage tended to be shortened,and the whole growth period was also shortened.The effect of density on the growth and development was not significant.Significantly,sowing date and density had significant effect on the agronomic traits of‘Zhengnonghua 15’.Under the same sowing date,with the increase of sowing density,the agronomic traits of‘Zhengnonghua 15’,such as plant height,lateral branch length,number of branches,and number of fruiting branches,all showed a downward trend.Under the same density,plant height,lateral branch length and branch number decreased gradually with the delay of sowing date,while the number of fruiting branches,fruit number per plant and fruit weight first increased and then decreased with the delay of sowing date.In conclusion,the suitable sowing date of‘Zhengnonghua 15’is from April 25 to May 25,and the suitable sowing density is 150000 to 195000 holes/hm^(2),which is most conducive to tapping its high-yield potential.This study provides guidance for the in-depth utilization and popularization of a new high-yield and large-fruit peanut variety‘Zhengnonghua 15’.

关 键 词：播期 密度 郑农花15号 发育进程 农艺性状 产量 

分 类 号：S565.202.4[农业科学—作物学]