黍稷种质资源的经济系数与生态环境的关系  

Relationship between Economic Coefficient of Proso Millet Germplasm Resources and Ecological Environment

作　　者：王纶 王星玉 王海岗[1] 曹晓宁 刘思晨 陈凌[1] 王君杰[1] WANG Lun;WANG Xingyu;WANG Haigang;CAO Xiaoning;LIU Sichen;CHEN Ling;WANG Junjie(Center for Agricultural Genetic Resources Research,Shanxi Agricultural University(Institute of Crop Germplasm Resources,Shanxi Academy of Agricultural Sciences),Key Laboratory of Crop Gene Resources and Germplasm Enhancement on Loess Plateau,Ministry of Agriculture,P.R.China,Shanxi Key Laboratory of Genetic Resources and Genetic Improvement of Minor Crops,Taiyuan 030031,China)

机构地区：[1]山西农业大学农业基因资源研究中心(山西省农业科学院农作物品种资源研究所),农业部黄土高原作物基因资源与种质创制重点实验室,杂粮种质资源发掘与遗传改良山西省重点实验室,山西太原030031

出　　处：《山西农业科学》2021年第1期76-81,共6页Journal of Shanxi Agricultural Sciences

基　　金：农业部作物种质资源保护与利用专项(2019NWB036-21);国家黍稷种质资源平台(NICGR2020-027);山西省农业科学院育种工程专项(17yzgc103)。

摘　　要：为了摸清黍稷种质资源经济系数与生态环境的关系,试验以山西省1192份黍稷种质资源为材料,对3个不同生态区不同生育期经济系数进行统计分析,旨在为深入研究和利用黍稷种质资源提供参考依据。结果表明,黍稷种质资源的经济系数是随着不同生态区不同生育期类别而变化。在3个生态区中,晋北生态区种质的经济系数以生育期90 d以下的最高,为0.42;晋中生态区的种质以90 d以下和101~110 d的最高,均为0.36;晋南生态区的种质以90 d以下的最高,为0.37。3个生态区中不同生育期类别的种质,平均值以90 d以下的最高,为0.38;101~110 d的次之,为0.36;91~100 d的最低,为0.34;生育期经济系数平均值为0.36,变化幅度为0.33~0.42,这也是黍稷作物的经济系数和变化幅度。黍稷种质资源的经济系数与不同生态区的无霜期、年平均气温、≥0℃积温和年降雨量关系密切,除此之外,与人为的栽培管理条件也有关。在稀植和氮肥过量的情况下,生育期短的种质经济系数降低;在密植水肥差的情况下,生育期长的种质经济系数升高。To investigate the relationship between economic coefficient of proso millet germplasm resources and ecological environment,1192 proso millet germplasm resources in Shanxi province were used to analyze the economic coefficient of different growth stages in three different ecological regions,to provide reference for further study and utilization of proso millet germplasm resources.The results indicated that the economic coefficient of proso millet germplasm resources changed with different growth stages in different ecological regions.Among the three ecological regions,the economic coefficient of germplasm in north Shanxi ecological region was the highest(0.42)with growth period less than 90 d.The economic coefficient of germplasm of middle Shanxi ecological area was the highest in lower than 90 d and 101-110 d,both were 0.36.The economic coefficient of germplasm of south Shanxi ecological area was the highest under 90 d,which was 0.37.In the different growth stages of three ecological regions,the average value was the highest under 90 d,which was 0.38.It was 0.36 in 101-110 d,and the average value was the lowest in 91-100 d,which was 0.34.The average economic coefficient of growth period was 0.36,and the range of change was 0.33-0.42,which was also the economic coefficient and range of change of millet crops.The economic coefficient of proso millet germplasm resources was closely related to frost free period,annual average temperature,≥0℃accumulated temperature and annual rainfall in different ecological regions.In addition,it was also related to man-made cultivation and management conditions.In the case of sparse planting and excessive nitrogen fertilizer,the economic coefficient of germplasm with short growth period will decrease.In the case of dense planting and poor water and fertilizer,the economic coefficient of germplasm with long growth period will increase.

关 键 词：黍稷 种质资源 经济系数 生态环境 

分 类 号：S516[农业科学—作物学]