不同氮素处理下棉花冠层光合有效辐射与其产量及构成因素的相关分析

doi:10.6048/j.issn.1001-4330.2021.05.001

新疆农业科学 ›› 2021, Vol. 58 ›› Issue (5): 785-793.DOI: 10.6048/j.issn.1001-4330.2021.05.001

• 作物遗传育种·种质资源·分子遗传学·耕作栽培·生理生化 • 下一篇

不同氮素处理下棉花冠层光合有效辐射与其产量及构成因素的相关分析

韩鹏, 黄春燕, 王登伟, 肖从和

新疆生产建设兵团绿洲生态农业重点实验室/石河子大学农学院,新疆石河子 832003

收稿日期:2020-05-09 出版日期:2021-05-20 发布日期:2021-05-26
通信作者: 王登伟(1966-),男,河北枣强人,教授,硕士生导师,研究方向为农业信息,(E-mail)wdw37660279@sina.com
作者简介:韩鹏(1995-),男,山西汾阳人,硕士研究生,研究方向为棉花栽培及其高光谱遥感应用,(E-mail)hanpeng1641@163.com
基金资助:
国家自然科学基金“基于冠层光合特征参数的棉花生长状况高光谱遥感定量监测”(31560354)

The Related Analysis between Canopy Photosynthetic Active Radiation and Its Yield and Yield Components in Cotton under Different Nitrogen Conditions

HAN Peng, HUANG Chunyan, WANG Dengwei, XIAO Conghe

Key Laboratory of Oasis Eco-Agriculture of Xinjiang Production and Construction Corps / College of Agronomy, Shihezi University, Shihezi Xinjiang 832003, China

Received:2020-05-09 Online:2021-05-20 Published:2021-05-26
Correspondence author: WANG Dengwei(1966-), male, From Zaoqiang County, Hebei Province, Professor, Master Instructor, mainly engaged in agricultural information technology, (E-mail)wdw37660279@sina.com
Supported by:
National Natural Science Foundation of China “Quantitative Monitoring of Cotton Growth by Hyperspectral Remote Sensing Based on Canopy Photosynthetic Characteristic Parameters” (31560354)

摘要/Abstract

摘要： 【目的】研究不同氮素处理棉花冠层关键生育时期,吸收性光合有效辐射(APAR) 和光合有效辐射吸收系数( FAPAR)与棉花产量和产量构成因素之间的相关性,为快速、非破坏性地监测棉花长势和产量预测提供理论支持。【方法】利用线性光量子传感器,获取棉花新陆早61号和新陆早72号2品种4氮素处理5个生育时期的冠层光合有效辐射(PAR),计算出APAR和FAPAR,分别与实测籽棉产量和其构成因素建立相关关系。【结果】2个棉花品种4种氮素处理的冠层APAR、FAPAR随生育期表现出相似的变化规律,冠层APAR在整个生育期呈现“M”的变化趋势;冠层FAPAR呈现出先上升后下降的趋势,其较高值都出现在开花结铃期和盛铃期,除盛花期外,2品种4氮素处理的其它4个生育时期FAPAR均为N₃>N₂>N₁>N₀的;5个生育时期的FAPAR与籽棉产量和单株有效铃数均达到显著和极显著相关关系,而只有开花结铃期的APAR与二者达到极显著相关(α=1%,n=24),APAR和FAPAR与其它产量构成因素未达到显著相关关系。利用开花结铃期FAPAR与籽棉产量和单株有效铃数相关最高的线性函数模型对其估算,籽棉产量和单株有效铃数的实测值与估测值之间均呈现极显著线性关系,预测精度分别达93.20%、93.25%。【结论】棉花不同氮素处理影响棉花冠层APAR、FAPAR的变化,利用棉花开花结铃期的冠层FAPAR可以预测棉花产量和单株有效铃数。

关键词: 棉花; 冠层光合有效辐射; 产量构成因素; 相关模型

Abstract: 【Objective】 This project aims to provide theoretical support for monitoring cotton growth and yield forecast in a quick and non-destructive way by studying the correlation between the absorption photosynthetically active radiation (APAR) together with fraction of absorbed photosynthetically active radiation (FAPAR) in different nitrogen treatments at critical growth stages of the cotton canopy and the cotton yield as well as yield components. 【Methods】 Linear optical quantum sensors were used to obtain the photosynthetically active radiation (PAR) at five cotton canopy growth stages under four nitrogen treatments of Xinluzao No. 61 and No. 72, and then APAR and FAPAR were also derived. The correlations between measured seed cotton yield as well as its constituent factors and APAR, FAPAR were established respectively. 【Results】 The APAR and FAPAR of four nitrogen-treated canopies of two cotton varieties embodied similar changes with the growth period. The canopy APAR showed a "M" change trend throughout the growth period, while canopy FAPAR showed a trend of first rising and then decreasing. The higher values appeared in the blossoming and boll-forming stages and full boll-forming phase. Except for the full flowering phase, the FAPARs of the other four growing periods of the two varieties under four nitrogen treatments were all N₃> N₂> N₁> N₀, which indicated that FAPAR in five growing periods was significantly and extremely significantly correlated with seed cotton yield and effective boll number per plant, while only APAR at flowering and boll-forming stage was extremely significantly related to them (α = 1%, n = 24). APAR and FAPAR were not significantly related to other constituent factors of output. The measured and estimated values of seed cotton yield and effective boll number per plant presented a very significant linear relationship estimated by the linear function model with the highest correlation between FAPAR and seed cotton yield and effective boll numbers per plant during flowering and boll-forming period. The prediction accuracy reached 93.20% and 93.25% respectively. 【Conclusion】 Different nitrogen treatments of cotton affect the APAR and FAPAR of cotton canopy. The cotton yield and effective boll numbers per plant can be predicted effectively by using cotton canopy FAPAR at the flowering and boll-forming stage.

Key words: cotton; canopy photosynthesis effective radiation; yield composition factor; relevant model

中图分类号:

S562

韩鹏, 黄春燕, 王登伟, 肖从和. 不同氮素处理下棉花冠层光合有效辐射与其产量及构成因素的相关分析[J]. 新疆农业科学, 2021, 58(5): 785-793.

HAN Peng, HUANG Chunyan, WANG Dengwei, XIAO Conghe. The Related Analysis between Canopy Photosynthetic Active Radiation and Its Yield and Yield Components in Cotton under Different Nitrogen Conditions[J]. Xinjiang Agricultural Sciences, 2021, 58(5): 785-793.

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不同氮素处理下棉花冠层光合有效辐射与其产量及构成因素的相关分析

The Related Analysis between Canopy Photosynthetic Active Radiation and Its Yield and Yield Components in Cotton under Different Nitrogen Conditions

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