播种期对3个糯玉米品种生育进程及产量的影响
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摘要
为了探索播种期对糯玉米生长发育进程及产量的影响,对3个糯玉米品种进行了分期播种试验。结果表明:随着播种期推后,从播种到抽雄天数、抽雄到成熟天数呈先缩短再延长的趋势,播种期越后延,从抽雄到成熟天数增加越明显;植株高度、穗位高度先增加,在第4播期达到最高值,然后逐渐降低,3个品种平均株高及穗位高表现为金糯691>黔糯627>农科糯336;在第1～3播期内,穗长、穗粗、单穗重及鲜穗产量、鲜子粒产量逐渐增加,在第4播期达到最大值,然后随播期延后逐渐降低。对单穗重、鲜穗产量、鲜子粒产量与播种期延后天数进行回归模拟,R~2值在0.9372～0.9903,均达极显著水平。3个糯玉米品种在遵义地区露地栽培的最适宜播种期在3月底至5月中旬,最迟播种期为6月上旬。
To explore the effects of sowing time on waxy corn growth and yield,13 sowing experiments were carried out on three waxy corn varieties.The results showed that as the sowing period was postponed,days from sowing to staminating,days from staminating to ripening is shortened and then extended,the later the sowing date was,the more obvious the increase of days from staminating to ripening was;plant height and spike height increased first,reached the highest value in the fourth phase,and then gradually decreased.The trend of average plant height and spike height of the three varieties was Jinnuo 691>Qiannuo 627>Nongkenuo 336.During the sowing period in the first to third period,the length of the ear,the thickness of the ear,the weight of the single ear,the yield of the fresh ear,and the yield of the fresh grain gradually increased,reaching a maximum in the third to fourth period,and then gradually decreased with the delay of the sowing period.The single ear weight,fresh ear yield,fresh grain yield,and the days delayed planting period were simulated.The R~2 value was between 0.9372 and 0.9903,all of which reached a very significant level.The optimum sowing time for three waxy maize varieties in Zunyi region is from late March to mid-May,and the latest sowing time is early June.
To explore the effects of sowing time on waxy corn growth and yield,13 sowing experiments were carried out on three waxy corn varieties.The results showed that as the sowing period was postponed,days from sowing to staminating,days from staminating to ripening is shortened and then extended,the later the sowing date was,the more obvious the increase of days from staminating to ripening was;plant height and spike height increased first,reached the highest value in the fourth phase,and then gradually decreased.The trend of average plant height and spike height of the three varieties was Jinnuo 691>Qiannuo 627>Nongkenuo 336.During the sowing period in the first to third period,the length of the ear,the thickness of the ear,the weight of the single ear,the yield of the fresh ear,and the yield of the fresh grain gradually increased,reaching a maximum in the third to fourth period,and then gradually decreased with the delay of the sowing period.The single ear weight,fresh ear yield,fresh grain yield,and the days delayed planting period were simulated.The R~2 value was between 0.9372 and 0.9903,all of which reached a very significant level.The optimum sowing time for three waxy maize varieties in Zunyi region is from late March to mid-May,and the latest sowing time is early June.
引文
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[2] 陈慧英.甜糯玉米优质高产栽培技术[J].河南农业,2018(10):51.
[3] 聂彦文,任永哲,高翔,等.播期对不同感温性小麦品种生长发育及产量的影响[J].贵州农业科学,2018,46(6):45-50.
[4] 李波,陈喜昌,张宇,等.鲜食糯玉米全程机械化栽培技术[J].农业科技通讯,2018(6):59-61.
[5] 王莉.鲜食糯玉米春播覆膜栽培技术[J].种子世界,2016(12):37.
[6] 周应友,何胜华,徐志丹,等.鲜食糯玉米卓糯1号特征特性及高产高效栽培技术[J].种子,2017(3):118,121.
[7] 李祥燕,唐海涛,张彪,等.我国鲜食甜糯玉米产业现状及前景分析[J].农业与技术,2014(4):219-221.
[8] 姚良永.糯玉米无公害高产规范化栽培技术[J].现代园艺,2018(4):76-77.
[9] 孙东升,刘成启,宫淑霞.铁岭地区鲜食糯玉米不同播种期与栽培方式试验[J].大麦与谷类科学,2017,34(5):29-32.
[10] 汤国民,夏德君,杜青福,等.播种期对鲜食糯玉米产量及其相关性状的影响[J].山东农业科学,2012,44(5):58-60.
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