摘要
为明确两个谷子品种的高产优势区,并探讨如何通过光温获得目标性状,本研究以山西7个典型地域:山西五台县(A1)、山西定襄县(A2)、山西平定县(A3)、山西省农科院高粱所(山西晋中市,A4)、山西省农科院经济作物所(山西汾阳市,A5)、山西省农科院谷子所(山西长治市,A6)和山西高平市(A7)为试验地点,以农大8号和长农35号为材料,对农艺性状进行研究分析。结果表明,不同地域显著影响谷子生育期、主茎高、留苗密度和穗粒重以及产量。品种差异是造成千粒重与穗长的主要因素。农大8号生育期显著小于长农35。由于谷子的分蘖能力可以随环境而自我调节,使得不同地域谷子穗数差异不显著,也使得不同地域谷子穗数与留苗密度的相关性不明显。本试验中穗重与穗粒重是构成产量的主要因素。农大8号的穗粒重与主茎高对地域反应很敏感且跟纬度呈正相关关系。在产量、千粒重、穗数与穗长方面农大8号在7个地域均表现适应,且综合评价结果明显好于对照品种,而长农35号的穗长在山西五台县表现最好,长农35在主茎高方面综合评价优于农大8号。除主茎高方面外,农大8号的抗逆性高于长农35号。在栽培过程中可以通过对光温的控制与调节来协调各因素以调整谷子农艺性状。
The aims of this study were to clarify the advantages of the high-yield areas of two varieties and coordinate various factors to achieve specific results and conduct research by adjusting light and temperature in the future.This study investigated the agronomic traits of 2 millet varieities,Nongda 8 and Changnong 35,in 7 typical areas in Shanxi Province.The results showed that different regions displayed significant effects on the growth period,main stem height,density of seedlings,grain weight per spike and production of milet.The variety difference was the main factor causing 1 000-grain weight and spike length differences.The growth period of Nongda-8 was significantly shorter than that of Changnong 35.As the millet’s tillering ability was automatically adjusted with the environment,the difference in the number of spike of millet in different regions was not significant,resulting in the correlation between the number of spike of millet and the density of seedlings in different regions was not obvious.In this study,the weight of spike and the spike grain weight were the main factors contributing on yield.The spike grain weight and the plant height of Nongda 8 were very sensitive to the local reaction and positively correlated with latitude.In terms of yield,1 000-grain weight,number of spike and length of spike,Nongda 8 adapted all seven regions and the overall evaluation result of it was obviously better than those of the control varieties.The spike length of Changnong 35 performed best in Shanxi Wutai County.Changnong 35 was superior to Nongda 8 in the stress resistance of main stems.In addition to the main stem high,the stress resistance of Nongda 8 was higher than that of Changnong 35.During cultivation process,variousfactors could be coordinated to achieve the expected effect through the control and adjustment of the light and temperature.
作者
段宏凯
王宏富
王钰云
原向阳
董淑琦
郭平毅
DUAN Hongkai;WANG Hongfu;WANG Yuyun;YUAN Xiangyang;DONG Shuqi;GUO Pingyi(College of Agronomy,Shanxi Agricultural University,Taigu 030801,China)
出处
《中国农业大学学报》
CAS
CSCD
北大核心
2018年第11期40-46,共7页
Journal of China Agricultural University
基金
国家自然科学基金(31301269)
山西省农业综合开发项目(201617)
山西省农业科技成果转化和推广示范工程项目(SXNKTG04)
山西省科技重点研发计划项目(2015-TN-09)
关键词
地域
谷子
农艺性状
抗逆性
region
millet
agronomic traits
resistance
