Effects of Transplanting Density on Yield and Physiological Characteristics of Different Types Japonica Rice under Rice-Duck Integrated Cultivation in Northern China

doi:10.3969/j.issn.1006-8082.2021.05.028

China Rice ›› 2021, Vol. 27 ›› Issue (5): 129-133.DOI: 10.3969/j.issn.1006-8082.2021.05.028

• Special Thesis & Basic Research • Previous Articles Next Articles

Effects of Transplanting Density on Yield and Physiological Characteristics of Different Types Japonica Rice under Rice-Duck Integrated Cultivation in Northern China

Jingyi MU(), Shimeng GUO, Wenju ZHAI, Shu WANG^*(), Baoyan JIA, Yuancai HUANG, Yan WANG, Yun WANG, Chanchan ZHOU

College of Agronomy /Crop Physiology Research Institute, Shenyang Agricultural University, Shenyang 110866, China

Received:2021-07-24 Online:2021-09-20 Published:2021-09-20
Contact: Shu WANG
About author:
1st author: 2019220219@stu.syau.edu.cn

移栽密度对北方稻鸭种养模式不同类型粳稻产量及生理特性的影响

牟静怡(), 郭诗梦, 翟文举, 王术^*(), 贾宝艳, 黄元财, 王岩, 王韵, 周婵婵

沈阳农业大学农学院/作物生理研究所,沈阳 110866

通讯作者: 王术
作者简介:
第一作者：2019220219@stu.syau.edu.cn
基金资助:
国家重点研发计划项目“粮食丰产增效科技创新”（2016YFD0300104）

Abstract

Abstract:

The split-zone design experiment was used to study the effects of transplanting density on the yield and physiological characteristics of Shendao 47（a variety with medium panicle number and medium panicle size） and Shendao 505 a variety with more panicles under rice-duck organic integrated cultivation. The results showed that with the increase of transplanting density, the leaf area index （LAI） and the effective panicles of both varieties significantly increased. The proportion of dry matter accumulation before full heading stage, total dry matter accumulation and yield of Shendao 47 were significantly increased with increasing density, while the number of spikelets per panicle and the seed setting rate were significantly decreased. However, with the increase of transplanting density, the number of spikelets per panicle of Shendao 505 was significantly reduced, and the seed setting rate, population dry matter accumulation and yield first increased and then decreased. Variety and transplanting density have significant interaction effects on multiple traits such as yield. The suitable transplanting densities of Shendao 47 and Shendao 505 for high yield were 30.0 cm×9.9 cm （3.3×10⁵ hills/hm²）and 30.0 cm×16.7 cm （2×10⁵ hills/hm²）, respectively.

Key words: japonica rice, rice-duck integrated cultivation, transplanting density, yield, yield traits, physiological characteristics

摘要：

采用裂区设计,在稻鸭种养有机栽培模式下研究了移栽密度对穗粒兼顾型品种沈稻47和穗数型品种沈稻505产量及生理特性的影响。结果表明,随着移栽密度增加,2个品种的叶面积指数（LAI）和单位面积有效穗数均增加;沈稻47齐穗前干物质积累所占比例、干物质总积累量和产量明显增加,每穗颖花数、结实率明显减少;沈稻505每穗颖花数明显减少,结实率、群体干物质积累量和产量先增后降;品种和密度在产量等多个性状上互作效应显著;穗粒兼顾型品种沈稻47取得高产的适宜移栽密度为30.0 cm×9.9 cm（33.0万丛/hm²）,穗数型品种沈稻505为30.0 cm×16.7 cm（20.0万丛/hm²）。

关键词: 粳稻, 稻鸭共作, 移栽密度, 产量, 产量性状, 生理特性

CLC Number:

S511.047

Jingyi MU, Shimeng GUO, Wenju ZHAI, Shu WANG, Baoyan JIA, Yuancai HUANG, Yan WANG, Yun WANG, Chanchan ZHOU. Effects of Transplanting Density on Yield and Physiological Characteristics of Different Types Japonica Rice under Rice-Duck Integrated Cultivation in Northern China[J]. China Rice, 2021, 27(5): 129-133.

牟静怡, 郭诗梦, 翟文举, 王术, 贾宝艳, 黄元财, 王岩, 王韵, 周婵婵. 移栽密度对北方稻鸭种养模式不同类型粳稻产量及生理特性的影响[J]. 中国稻米, 2021, 27(5): 129-133.

Figures/Tables 5

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Effects of Transplanting Density on Yield and Physiological Characteristics of Different Types Japonica Rice under Rice-Duck Integrated Cultivation in Northern China

移栽密度对北方稻鸭种养模式不同类型粳稻产量及生理特性的影响

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