Characterization of the plant traits contributed to high grain yield and high grain nitrogen concentration in maize

Chen, Yanling; Xiao, Changxin; Chen, Xianfeng; Li, Qian; Zhang, Jie; Chen, Fanjun; Yuan, Lixing; Mi, Guohua

doi:10.1016/j.fcr.2014.01.002

Cited by 124 publications

(109 citation statements)

References 37 publications

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“…Ishaq, et al (2001) demonstrated that an increase in bulk density (from 1.65 to1.93 Mg m -3 ) due to subsoil compaction decreased the nutrient uptake in wheat and sorghum plants. Whereas lots of studies found that in stay-green maize hybrids the higher retention of leaf N may lead to a decline in kernel N content (Acciaresi et al, 2014;Chen et al, 2014). However, it is rarely known whether leaf stay-greenness caused by soil compaction influenced N accumulation, remobilization and distribution in maize plants under repeated use of small tractors in developing countries.…”

Section: Introductionmentioning

confidence: 99%

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Cao

Yang

et al. 2017

Emir J Food Agric

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This study aims to investigate the responses of carbon assimilation, grain yield, leaf stay-green rate, nitrogen uptake and distribution to soil compaction in the hard plow pan caused by repeated use of tractor-driven cultivator in Northeast China. The typical hybrid maize variety “Zhengdan 958” was exposed to two treatments of simulated plow pan (SP) and simulated subsoiling (SS, control) in pot experiments from 2012 to 2014. Compared with SS, SP significantly reduced net photosynthetic rate (Pn) during growth stage, leading to a decrease in dry matter accumulation (DMA) and grain yield (GY) in three consecutive experimental years. Leaf stay-green degrees (LSD), which showed a fast descending trend from 20 days after silking (DAS), significantly decreased in the later filling stage under SP treatment. The translocation eﬃciency of the stored N (TEN) in stalk and leaf to the grain during pre-silking was enhanced, whereas leaf and grain N concentration (LNC/GNC), together with N accumulation amounts at maturity were significantly reduced under SP treatment. Also, plough pan reduced the N distribution to the organs of stalk, leaf and grain. In conclusion, subsoiling is a possible way to delay leaf senescence and achieve higher DMA and GY, and increased grain N in the corn belt of Northeast China.

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Section: Introductionmentioning

confidence: 99%

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Cao

Yang

et al. 2017

Emir J Food Agric

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“…Beberapa hasil penelitian menunjukkan diameter batang berkorelasi positif terhadap produktivitas jagung hibrida pada kondisi cekaman kekeringan dan N rendah (Abdelmula andSabiel 2007, Lu et al 2011). Chen et al (2014) menyatakan diameter batang merupakan organ tempat penyimpanan asimilat. Pada kondisi cekaman kekeringan air dan N tanah, tanaman akan meremobilisasi N dari batang ke organ sink (biji) sampai 45% dari seluruh remobilisasi N dari organ tanaman jagung.…”

Section: Daya Gabung Umumunclassified

Daya Gabung Inbrida Jagung Toleran Cekaman Kekeringan dan Nitrogen Rendah pada Pembentukan Varietas Hibrida

Efendi

Takdir

Azrai

2017

j. penelit. pertan. tanam. pangan

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“…Therefore, it is a great challenge to increase N remobilization from leaves while ensuring high photosynthesis during the grain filling stage in maize. Photosynthetic N use efficiency (PNUE) represents the photosynthetic capacity of N content per unit leaf area, which is an important index indicating whether the photosynthetic capacity of the leaves and N use efficiency are coordinated ( Chen et al., ). Understanding the improved mechanism of PNUE is essential to maintain photosynthetic capacity together with promoting N remobilization from leaves.…”

Section: Introductionmentioning

confidence: 99%

“…This contributes to higher grain yield and average net photosynthetic rate (P N ) ( He et al., ). However, the leaf maximum P N and grain N concentration were not improved ( Tollenaar and Lee , ) and N residues in the leaves were higher than in senescent hybrids, illustrating that PNUE in modern stay‐green maize hybrids was not improved ( Chen et al., ). The possible reason is that some of the excess N might accumulate in the leaves in stay‐green hybrids, which is not used for the P N critical limiting enzyme, ribulosebisphospate carboxylase (Rubisco), but is channeled into phosphoenolpyruvate carboxylase, which did not provide a benefit to photosynthetic rate ( Uribelarrea et al., ).…”

Section: Introductionmentioning

confidence: 99%

“…In our previous study, two hybrids, XY335 and ZD958, were identified through evaluating the yield and N use efficiency of 84 Chinese commercial maize hybrids at three locations in the North China plain over 2 years. We found that the high yield potential was similar in XY335 and ZD958, but NRE was significantly higher in XY335 than that in ZD958 ( Chen et al., ; Guo , ). Taking advantage of the characteristics of the two hybrids, their leaf P N , specific leaf N (SLN), PNUE, and stomatal and photosynthetic parameters in different leaf positions throughout the whole grain filling period were further analyzed in the present study.…”

Section: Introductionmentioning

confidence: 99%

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Physiological mechanisms underlying post‐silking nitrogen use efficiency of high‐yielding maize hybrids differing in nitrogen remobilization efficiency

Chen

2018

J. Plant Nutr. Soil Sci.

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It is a great challenge to increase nitrogen (N) remobilization from leaves while ensuring high grain yield of maize (Zea mays L.). One possible way is to increase photosynthetic N use efficiency (PNUE) of leaves during post‐silking. This study aimed to understand the strategies required to maintain high PNUE during post‐silking in a N‐remobilizing high‐yielding maize hybrid. In this study, the high‐yielding hybrid XY335 with high N remobilization efficiency (NRE) and the high‐yielding hybrid ZD958 with low NRE were used in a three‐year field experiment under normal N levels. The results show that specific leaf N contents were similar in lower, middle, and upper leaves of the two hybrids from silking stage to maturity. Throughout the grain filling period, net photosynthetic rate (PN), stomatal conductance (gs), intercellular CO2 concentration, and PNUE of XY335 were similar to that in ZD958 in lower leaves, but higher in middle and upper leaves. Stomatal density and maximum rate of carboxylation in upper leaves and maximum rate of electron transport in middle leaves was higher in XY335 than that in ZD958. It is concluded that maintaining the PNUE of lower leaves together with increasing the PNUE of middle and upper leaves at canopy‐level are the possible regulatory mechanisms to improve NRE without penalty in whole‐plant photosynthesis during post‐silking in modern high‐yielding cultivars. The higher PNUE is at least partly related to the higher proportion of N allocation to the carboxylation and bioenergetics systems and the higher stomatal density and greater gs. Therefore, genetic improvement in N allocation to the carboxylation and bioenergetics systems and stomatal density and gs might increase PNUE.

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Characterization of the plant traits contributed to high grain yield and high grain nitrogen concentration in maize

Cited by 124 publications

References 37 publications

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Plough Pan Impacts Maize Grain Yield, Carbon Assimilation, and Nitrogen Uptake in the Corn Belt of Northeast China

Daya Gabung Inbrida Jagung Toleran Cekaman Kekeringan dan Nitrogen Rendah pada Pembentukan Varietas Hibrida

Physiological mechanisms underlying post‐silking nitrogen use efficiency of high‐yielding maize hybrids differing in nitrogen remobilization efficiency

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