[1]刘红杰,任德超,倪永静,等.播期和密度对冬小麦开花后干物质转运及灌浆特征参数的影响[J].江苏农业学报,2022,38(05):1227-1237.[doi:doi:10.3969/j.issn.1000-4440.2022.05.009]
　LIU Hong-jie,REN De-chao,NI Yong-jing,et al.Effects of seeding date and density on dry matter transport and filling characteristic parameters of winter wheat after anthesis[J].,2022,38(05):1227-1237.[doi:doi:10.3969/j.issn.1000-4440.2022.05.009]
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播期和密度对冬小麦开花后干物质转运及灌浆特征参数的影响()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
38
期数:
2022年05期
页码:
1227-1237
栏目:
耕作栽培·资源环境
出版日期:
2022-10-31

文章信息/Info

Title:
Effects of seeding date and density on dry matter transport and filling characteristic parameters of winter wheat after anthesis
作者:
刘红杰1; 任德超1; 倪永静1; 张素瑜1; 王艳敏1; 葛君1; 吕国华2; 胡新1; 孙凤岭1; 陈玉霞3
(1.商丘市农林科学院，河南商丘476000；2.中国农业科学院农业环境与可持续发展研究所，北京100081；3.商丘职业技术学院，河南商丘476000）
Author(s):
LIU Hong-jie1; REN De-chao1; NI Yong-jing1; ZHANG Su-yu1; WANG Yan-min1; GE Jun1; LYU Guo-hua2; HU Xin1; SUN Feng-ling1; CHEN Yu-xia3
(1.Shangqiu Academy of Agriculture and Forestry Sciences, Shangqiu 476000, China;2.Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China;3.Shangqiu Polytechnic, Shangqiu 476000, China)
关键词:
小麦; 播期; 密度; Logistic曲线拟合; 干物质转运; 贡献率; 籽粒灌浆
Keywords:
wheat; seeding date; density; Logistic curve fitting; dry matter transport; contribution rate; grain filling
分类号:
S512.1+10.42
DOI:
doi:10.3969/j.issn.1000-4440.2022.05.009
文献标志码:
A
摘要:
以周麦22为试验材料，采用裂区试验，研究播期(B1:10月5日; B2:10月10日; B3:10月15日; B4:10月20日)和播种密度(M1:1 hm21.2×106株; M2:1 hm22.7×106株; M3:1 hm24.2×106株)对籽粒灌浆和物质转运的影响。结果表明，(1)播期和播量均对灌浆特征参数产生显著影响，播期主要影响灌浆速率，而密度主要影响灌浆持续时间。(2)冬小麦花后干物质积累动态符合一元三次多项式Y=b+b1x+b2x2+b3x3（Y为营养器官干物质质量，b、b1、b2、b3为系数，x为开花后天数），开花后8～10 d植株营养器官干物质积累量达到最大值；播期提前可显著提高冬小麦单株干物质积累量，但随种植密度增加，冬小麦单株干物质积累量则迅速降低。(3)开花后冬小麦营养器官干物质转运量对籽粒产量的贡献率为43.07%～70.11%。渐增期籽粒灌浆以光合作用产物为主，快增期、缓增期籽粒灌浆养分来源以营养器官干物质转运为主。播期主要影响灌浆速率、最大灌浆达到时间、快增期持续时间和缓增期持续时间；密度主要影响千粒质量、总灌浆持续时间、渐增期持续时间和各时期籽粒增质量；播期和密度互作效应主要影响平均灌浆速率和渐增期持续时间。
Abstract:
Influence of seeding dates (B1～B4: October 5, October 10, October 15, October 20) and seeding densities (M1～M3: 1.2×106 strains/hm2, 2.7×106 strains/hm2, 4.2×106 strains/hm2) on grain filling and material transport were studied by split plot test, using Zhoumai 22 as the test material. The results showed that, firstly, seeding date and seeding density both influenced grain filling characteristic parameters obviously, the seeding date mainly affected the filling rate, while the seeding density mainly affected the filling duration. Secondly, dynamics of dry matter accumulation after anthesis of winter wheat accorded with univariate cubic polynomial: Y=b+b1x+b2x2+b3x3(Y represented dry matter mass in vegetative organs, b, b1, b2, b3 represented coefficients, x represented days after anthesis). The dry matter accumulation in vegetative organs reached the maximum at 8-10 days after anthesis. Advance of the seeding date could significantly increase the dry matter accumulation per plant of winter wheat, but with the increase of planting density, the dry matter accumulation per plant of winter wheat decreased rapidly. Thirdly, the contribution rate of dry matter transport quantity in vegetative organs of winter wheat after anthesis to grain yield was 43.07%-70.11%. Products of the photosynthesis was the main nutrient source of grain filling in the slightly increasing stage, and the dry matter transport of vegetative organs was the main nutrient source of grain filling in the fast increasing stage and slowly increasing stage. Seeding date mainly influences filling rate, arrival time of maximum filling, duration of fast increasing period and duration of slightly increasing period. Seeding density mainly influences thousand-grain weight, total filling duration, duration of slightly increasing stage and grain weight increase at each stage. The interaction effect of seeding date and seeding density mainly affects the average filling rate and the duration of slightly increasing period.

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备注/Memo

备注/Memo:
收稿日期：2021-12-22基金项目：财政部和农业农村部国家现代农业产业技术体系资助项目（CARS-03-31）；河南省科技攻关项目（222102110370）；粮食丰产增效科技创新专项（2017YFD0300410-02）；河南省科技攻关项目（202102110021）作者简介：刘红杰（1984-），男，河南商丘人，硕士，副研究员，研究方向为小麦绿色高产栽培与育种。(E-mail)liuhj84@163.com通讯作者：吕国华，(E-mail)lvguohua@caas.cn；胡新，(E-mail)huxin2699552@163.com
更新日期/Last Update: 2022-11-07