Improving the yield potential in maize by constructing the ideal plant type and optimizing the maize canopy structure

Li, Rongfa; Zhang, Guoqiang; Liu, Guangzhou; Wang, Keru; Ming, Bo; Wang, Zhigang; Li, Shaokun

doi:10.1002/fes3.312

Cited by 34 publications

(13 citation statements)

References 54 publications

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“…In the present study, the accumulated above-ground biomass of JNK728 was increased by 39% and 31% compared to J2416 and JMC01, while accumulated PAR was increased by 23% and 14%, correspondingly ( Figure 9 ). This is in agreement with the previous field experimental results that higher yielding maize lines have a higher RUE [ 46 , 47 ]. Liu et al [ 46 ] attributed the larger RUE to the improved canopy structure with optimized maize plant type at high plant density.…”

Section: Discussionsupporting

confidence: 93%

“…Liu et al [ 46 ] attributed the larger RUE to the improved canopy structure with optimized maize plant type at high plant density. The morphological improvements were expressed in terms of higher leaf area [ 46 ], more erect stature [ 47 ], and optimized leaf architecture [ 48 ]. This evidence supports our results on modifications of leaf area and leaf architecture ( Figure 4 and Table 2 ), but not on leaf angle ( Table 2 ).…”

Section: Discussionmentioning

confidence: 99%

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Disentangling the Heterosis in Biomass Production and Radiation Use Efficiency in Maize: A Phytomer-Based 3D Modelling Approach

Liu

Wen

et al. 2023

Plants

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Maize (Zea mays L.) benefits from heterosis in-yield formation and photosynthetic efficiency through optimizing canopy structure and improving leaf photosynthesis. However, the role of canopy structure and photosynthetic capacity in determining heterosis in biomass production and radiation use efficiency has not been separately clarified. We developed a quantitative framework based on a phytomer-based three-dimensional canopy photosynthesis model and simulated light capture and canopy photosynthetic production in scenarios with and without heterosis in either canopy structure or leaf photosynthetic capacity. The accumulated above-ground biomass of Jingnongke728 was 39% and 31% higher than its male parent, Jing2416, and female parent, JingMC01, while accumulated photosynthetically active radiation was 23% and 14% higher, correspondingly, leading to an increase of 13% and 17% in radiation use efficiency. The increasing post-silking radiation use efficiency was mainly attributed to leaf photosynthetic improvement, while the dominant contributing factor differs for male and female parents for heterosis in post-silking yield formation. This quantitative framework illustrates the potential to identify the key traits related to yield and radiation use efficiency and helps breeders to make selections for higher yield and photosynthetic efficiency.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Disentangling the Heterosis in Biomass Production and Radiation Use Efficiency in Maize: A Phytomer-Based 3D Modelling Approach

Liu

Wen

et al. 2023

Plants

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“…Previous studies have shown that the duration of high SPAD readings is closely related to the duration of leaf photosynthetic function (Cao et al ., 2001). The length of time when a leaf has a high-photosynthetic rate is the key for improving photosynthetic productivity (Abeledo et al ., 2020; Li et al ., 2021). Maintaining the duration of high-photosynthetic rate during the grain-filling period was one important physiological trait with implications for yield potential related to increased assimilation availability (Gu et al ., 2017; Wang et al ., 2018).…”

Section: Discussionmentioning

confidence: 99%

Effects of nitrogen application rates on the spatio-temporal variation of leaf SPAD readings on the maize canopy

Ming

Liu

et al. 2022

J. Agric. Sci.

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The spatio-temporal variation of leaf chlorophyll content is an important crop phenotypic trait that is of great significance for evaluating crop productivity. This study used a soil-plant analysis development (SPAD) chlorophyll meter for non-destructive monitoring of leaf chlorophyll dynamics to characterize the patterns of spatio-temporal variation in the nutritional status of maize (Zea mays L.) leaves under three nitrogen treatments in two cultivars. The results showed that nitrogen levels could affect the maximum leaf SPAD reading (SPADmax) and the duration of high SPAD reading. A rational model was used to measure the changes in SPAD readings over time in single leaves. This model was suitable for predicting the dynamics of the nutrient status for each leaf position under different nitrogen treatments, and model parameter values were position dependent. SPADmax at each leaf decreased with the reduction of nitrogen supply. Leaves at different positions in both cultivars responded differently to higher nitrogen rates. Lower leaves (8th–10th positions) were more sensitive than the other leaves in response to nitrogen. Monitoring the SPAD reading dynamic of lower leaves could accurately characterize and assess the nitrogen supply in plants. The lower leaves in nitrogen-deficient plants had a shorter duration of high SPAD readings compared to nitrogen-sufficient plants; this physiological mechanism should be studied further. In summary, the spatio-temporal variation of plant nitrogen status in maize was analysed to determine critical leaf positions for potentially assisting in the identification of appropriate agronomic management practices, such as the adjustment of nitrogen rates in late fertilization.

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“…Canopy structure, the spatial arrangement of the aboveground organs of a crop population, influences light interception and distribution as well as air permeability within the crop canopy, and in turn affects yield potential of a cultivar (R. F. Li et al., 2021; Tharakan et al., 2008). Thus, optimizing canopy structure to maximize resource use has been considered as an important strategy among diverse agricultural practices for improving crop yield (Hiltbrunner et al., 2007; Sukumaran et al., 2015; Tollenaar et al., 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of plant architecture on the responses of canopy temperature and water use to population density in winter wheat

Huang,

Zhang,

Wang

et al. 2024

Crop Science

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Revealing how plant architecture affects the responses of canopy temperature depression (CTD), water use (WU), and grain yield to population density (PD) in wheat (Triticum aestivum L.) would help explore a water‐saving pathway related to managing population. This study was conducted over three consecutive years under rainfed and supplemental irrigation conditions. The flat‐leafed Jinmai 47 and upright‐leafed Jing 411 genotypes were grown at high population density (HD), medium population density (MD), and low population density (LD); seeding rates were 450, 675, and 900 seeds m−2, respectively). CTD peaked at MD in Jinmai 47 but reached the highest at HD in Jing 411. WU generally increased with increasing PD but remained unchanged from LD to MD in Jinmai 47 under the two water conditions, while it remained unchanged from MD to HD under supplemental irrigation condition in Jing 411. Yield increased with increasing density in both genotypes under the two water conditions. It is thus clear that Jinmai 47 gained higher yield but did not consume more water at MD than at LD under the two water conditions; Jing 411 obtained higher yield at the expense of similar amount of water at HD than at MD under supplemental irrigation condition. The grain yield and WU responses of wheat crops to PD implied that through appropriately adjusting PD in combination with plant architecture and water condition, the dual goals of optimizing yield and effectively saving irrigation water could be realized synchronously.

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Improving the yield potential in maize by constructing the ideal plant type and optimizing the maize canopy structure

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 34 publications

References 54 publications

Disentangling the Heterosis in Biomass Production and Radiation Use Efficiency in Maize: A Phytomer-Based 3D Modelling Approach

Disentangling the Heterosis in Biomass Production and Radiation Use Efficiency in Maize: A Phytomer-Based 3D Modelling Approach

Effects of nitrogen application rates on the spatio-temporal variation of leaf SPAD readings on the maize canopy

Effect of plant architecture on the responses of canopy temperature and water use to population density in winter wheat

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