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1صورة
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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2صورة
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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3صورة
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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4صورة
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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5
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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6
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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7
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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8صورة
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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9
المؤلفون: Wei Li (7081), Xiaonan Zhou (4923118), Kang Yu (304055), Zhen Zhang (86004), Yang Liu (4829), Naiyue Hu (10575833), Ying Liu (18461), Chunsheng Yao (10575836), Xiaoguang Yang (285522), Zhimin Wang (134383), Yinghua Zhang (122625)
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
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10صورة
المؤلفون: Wei Li, Xiaonan Zhou, Kang Yu, Zhen Zhang, Yang Liu, Naiyue Hu, Ying Liu, Chunsheng Yao, Xiaoguang Yang, Zhimin Wang, Yinghua Zhang
مصطلحات موضوعية: Botany, Plant Biology, Plant Systematics and Taxonomy, Plant Cell and Molecular Biology, Plant Developmental and Reproductive Biology, Plant Pathology, Plant Physiology, Plant Biology not elsewhere classified, hyperspectral, N concentration, PLSR, plant organ reflectance, winter wheat, N remobilization efficiency
الوصف: Nitrogen (N) remobilization is a critical process that provides substantial N to winter wheat grains for improving yield productivity. Here, the remobilization of N from anthesis to maturity in two wheat cultivars under three irrigation regimes was measured and its relationship to organ N concentration was examined. Based on spectral data of organ powder samples, partial least squares regression (PLSR) models were calibrated to estimate N concentration (N mass ) and validated against laboratory-based measurements. Although spectral reflectance could accurately estimate N mass , the PLSR-based N mass -spectra predictive model was found to be organ-specific, organs at the top canopy (chaff and top three leaves) received the best predictions (R 2 > 0.88). In addition, N remobilization efficiency (NRE) in the top two leaves and top third internode was highly correlated with its corresponding N concentration change (ΔN mass ) with an R 2 of 0.90. ΔN mass of the top first internode (TIN1) explained 78% variation of the whole-plant NRE. This study provides a proof of concept for estimating N concentration and assessing N remobilization using hyperspectral data of individual organs, which offers a non-chemical and low-cost approach to screen germplasms for an optimal NRE in drought-resistance breeding.
الإتاحة: https://doi.org/10.3389/fpls.2021.657578.s003Test
https://figshare.com/articles/figure/Image_3_Spectroscopic_Estimation_of_N_Concentration_in_Wheat_Organs_for_Assessing_N_Remobilization_Under_Different_Irrigation_Regimes_pdf/14392025Test
