摘要
适期播种是谷子高产的重要条件之一,研究不同播期对谷子生长、产量及品质的影响,为优质特色谷子品种选育及生产利用提供科学依据。试验选用泰安地方特色谷子新品系金选6号为材料,于2019年5月15日至6月29日每5天播种1次,共设置10个播期处理,于成熟期测定株高、植株干重等农艺性状,穗长、穗粗、千粒重等产量性状以及脂肪、蛋白质含量等品质性状,并按小区统计产量。结果表明,播期对金选6号谷子的农艺性状、产量性状、品质性状的影响达显著水平。随着播期推迟,谷子的株高、穗下节间长、茎粗、植株干重、穗长、穗粗、穗重、穗粒重、出谷率、总产量、脂肪含量、直链淀粉含量等指标均表现出先升高后降低的趋势,而蛋白质含量呈先降低后升高的趋势。其中6月9日播种(处理6)时,株高、穗下节间长最大,6月4日播种(处理5)时茎粗、植株干重、穗粗、穗重、穗粒重、出谷率、总产量最大,5月30日播种时穗长最大。通过曲线模型拟合获得的播期与产量关系的二次曲线函数方程为Y=276.338+47.870X-5.689X^(2)。本试验条件下,金选6号谷子的最佳播期是5月31日至6月4日。
Suitable sowing time is an important condition for high yield of foxtail millet. The effects of different sowing dates on growth, yield and quality of foxtail millet were studied, which could provide scientific bases for breeding and utilization of high-quality foxtail millet varieties. Foxtail millet cultivar Jinxuan 6 was selected as the material of this experiment. Ten sowing treatments were designed during May 15 to June 29, 2019 in the interval of 5 days. The agronomic characters, yield-related traits, quality traits and yield of each plot were measured in mature period. The results showed that there were significant differences in the agronomic characters, yield traits and quality traits of Jinxuan 6 under different sowing dates. The plant height, peduncle length, stem diameter, plant dry weight, spike length, spike diameter, spike weight, grain weight per spike, milled millet percentage, yield, fat content and amylose content increased firstly and then decreased with the delay of sowing date, while the protein content showed opposite trend. Among them, the plant height and peduncle length were the highest when sowing on June 9(treatment 6);the stem diameter, plant dry weight, spike diameter, spike weight, grain weight per spike, milled millet percentage and total yield were the highest when sowing on June 4(treatment 5);and the spike length was the highest when sowing on May 30. The predicted equation Y=276.338+47.870 X-5.689 X2 was the optimal model for fitting the relationship of sowing and yield of Jinxuan 6. The suitable sowing date for Jinxuan 6 was May 31 to June 4 under this experiment conditions.
作者
李国瑜
丛新军
李国清
Li Guoyu;Cong Xinjun;Li Guoqing(Taian Academy of Agricultural Sciences,Taian 271000,China)
出处
《山东农业科学》
北大核心
2021年第3期36-40,共5页
Shandong Agricultural Sciences
基金
山东省现代农业产业技术体系杂粮创新团队专项(SDAIT-15-09)
泰安市科技发展计划(引导计划)项目(2018NS0086)。
关键词
谷子
播期
农艺性状
产量
品质
Foxtail millet
Sowingdate
Agronomic characters
Yield
Quality
