播期和密度对陇春33号产量构成因素及产量的影响

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英文篇名：Effects of Sowing Date and Density on Yield Components and Yield of Longchun 33 作者：汤莹 ; 杨文雄 英文作者：TANG Ying;YANG Wenxiong;Gansu Academy of Agricultural Sciences;Institute of Wheat,Gansu Academy of Agricultural Sciences; 关键词：播期 ; 播种密度 ; 陇春33号 ; 产量构成 ; 产量 英文关键词：Sowing date;;Sowing density;;Longchun 33;;Yield composition;;Yield 中文刊名：GSNK 英文刊名：Gansu Agricultural Science and Technology 机构：甘肃省农业科学院;甘肃省农业科学院小麦研究所; 出版日期：2019-03-25 出版单位：甘肃农业科技 年：2019 期：No.519 基金：甘肃省科技重大专项“抗逆高产小麦新品种选育及高效生产技术集成展示”(1203NKDF018) 语种：中文; 页：GSNK201903008 页数：5 CN：03 ISSN：62-1050/S 分类号：39-43

摘要

在河西绿洲灌区,研究了播期和密度对小麦品种陇春33号产量构成因素及产量的影响。结果表明,随播种密度的增大,基本苗株高增高,导致成穗数和收获指数明显下降,穗粒数和千粒重表现为先增加后降低的趋势。随着播期的推迟,产量下降,3月30日以后播种的产量下降显著。不同播期产量变化幅度又因播种密度不同而异,陇春33号产量以播期3月20日、密度675万粒/hm~2处理最高,为8 769.6 kg/hm~2;其次是播期3月20日、密度750万粒/hm~2处理,为8 706.8 kg/hm~2;播期3月10日、密度675万粒/hm~2处理排第3,为8 505.2 kg/hm~2;播期3月20日、密度825万粒/hm~2处理排第4,为8 323.9 kg/hm~2;播期3月10日、密度750万粒/hm~2处理排第5,为8 118.1 kg/hm~2。可见,在河西绿洲灌区陇春33号达到高产优质的适宜播种时间为3月上中旬、播种密度为675万～750万粒/hm~2。
        The effects of sowing date and density on yield components and yield of wheat variety Longchun33 were studied in Hexi oasis irrigation area. The results showed that with the increase of sowing density,the basic seedling height increased,leading to a significant decrease in panicle number and harvest index,and the number of grains per panicle and 1000-grain weight showed a trend of first increasing and then decreasing. With the postponement of sowing date,the yield decreased significantly after March 30. The range of yield changes varies with sowing density. The highest yield of Longchun 33 was 8 769.6 kg/hm~2 with a density of 6.75 million grains/hm~2 on March 20;Second,the yield was 8 706.8 kg/hm~2 with a density of 7.50 million grains/hm~2 on March 20;Third,the yield was 8 505.2 kg/hm~2 with a density of 6.75 million grains/hm~2 on March 10;Fourth,the yield was 8 323.9 kg/hm~2 with a density of 8.25 million grains/hm~2 on March 20;Fifth,the yield was 8118.1 kg/hm~2 with a density of7.50 million grains/hm~2 on March 10. It can be seen that the suitable sowing time for Longchun 33 in Hexi Oasis Irrigation District to reach high yield and high quality is in the beginning and middle of March,and the sowing density is 6.75～7.50 million grains/hm~2.

引文

[1]徐恒永,赵振东,刘建军,等.群体调控对济南17号小麦产量性状的影响[J].山东农业科学,2001(1):7-9.
    [2]王希恩,韩瑜,王德贤,等.播期与密度对旱地冬小麦天选55号产量及品质的影响[J].甘肃农业科技,2018(2):51-55.
    [3]王炜,罗俊杰,欧巧明,等.叶春雷陇春31号小麦适宜播期和播种密度研究[J].甘肃农业科技,2016(4):7-10.
    [4]李兰真,汤景华,汤新海,等.不同类型小麦品种播期播量研究[J].河南农业科学,2007(11):38-41.
    [5]张华.京冬8号不同播期,密度对产量效应的研究[J].北京农业科学,1995,13(3):13-17.
    [6]蒋纪芸,阎世理,潘世禄,等.品种栽培条件对旱地小麦产量及品质的影响[J].北京农学报,1998,3(2):149-157.
    [7]张耀辉,宋建荣,岳维云,等.陇南雨养旱区播期与密度对冬小麦产量与品质的影响[J].干旱地区农业研究,2011,29(6):74-78.
    [8]陈爱大,蔡金华,温明星,等.播期和种植密度对镇麦168籽粒产量与品质的调控效应[J].江苏农业学报,2014,30(1):9-13.