摘要
[目的]了解宁麦30的丰产性及其产量构成三因素与产量之间关系,为其大面积推广提供依据。[方法]利用国家冬小麦长江中下游2015—2017年度品种比较试验、2017—2019年度区域试验和2019—2020年度生产试验数据进行分析。[结果]宁麦30在3组试验中平均产量较对照扬麦20分别增产5.16%、5.22%和4.99%。在88个试验点次中,宁麦30的平均穗数452.8万/hm^(2)、穗粒数36.6粒、千粒重45.9 g、籽粒产量6493.1 kg/hm^(2)。相关分析表明,有效穗数、穗粒数和千粒重与产量均呈极显著正相关,相关系数分别为0.5575、0.7440和0.3795。通径分析表明,穗粒数、有效穗数和千粒重对产量的直接通径数值较大且接近,说明该品种的产量三因素已在较高水平上达到协调。宁麦30的高产栽培技术应保证足够的成穗数,主攻穗粒数,并兼顾千粒重。[结论]宁麦30丰产性好,产量三因素较协调,适宜在长江中下游地区大面积推广种植。
[Objective]To understand the relationship between the three factors of Ningmai 30's high yield and its yield composition and yield,and to provide a basis for its large area promotion.[Method]The analysis was made on the data of the wheat variety comparison test in 2015-2017,wheat regional tests in 2017-2019 and wheat production test in 2019-2020 in the mid-lower reaches of the Yangtze River.[Result]The average yield of Ningmai 30 increased by 5.16%,5.22%and 4.99%respectively compared with that of the check variety Yangmai 20 in three trials.The average spike number,grain number per spike,1000-grain weight and grain yield of Ningmai 30 tested at 88 locations were 452.8×10^(4)/hm^(2),36.6,45.9 g and 6493.1 kg/hm^(2),respectively.Correlation analysis showed that spike number,grain number per spike and 1000-grain weight were significantly positively correlated with grain yield,and the correlation coefficients were 0.5575,0.7440 and 0.3795,respectively.Path analysis showed that the spike number,the grain number per spike and the 1000-grain weight had greater effect on the grain yield,the direct path values of three yield components were higher and closer,indicating that they had been coordinated at a higher level.The high yield cultivation techniques of Ningmai 30 should ensure sufficient spike number,focus on the number per spike and take into account the 1000-grain weight.[Conclusion]Ningmai 30 had high yield potential and good coordination on yield components,and it was suitable for large area promotion in the mid-lower reaches of the Yangtze River.
作者
姚金保
张鹏
余桂红
杨学明
周淼平
张平平
YAO Jin-bao;ZHANG Peng;YU Gui-hong(Institute of Food Crops,Jiangsu Academy of Agricultural Sciences,Nanjing,Jiangsu 210014;Jiangsu Co-Innovation Center for Modern Production Technology of Grain Crops,Yangzhou University,Yangzhou,Jiangsu 225009)
出处
《安徽农业科学》
CAS
2021年第24期50-52,共3页
Journal of Anhui Agricultural Sciences
基金
江苏省农业重大新品种创制(PZCZ201705)
农业部现代农业产业技术体系(CARS-03)。
