Article
Agronomy
Zheng Liu, Zhanhong Hao, Ye Sha, Yiwen Huang, Wenqing Guo, Lihua Ke, Fanjun Chen, Lixing Yuan, Guohua Mi
Summary: This study investigates the physiological mechanism underlying nitrogen responsiveness in maize. The results suggest that increasing nitrogen supply enhances ear growth rate and N allocation rate during the early critical period, leading to an increased number of floret primordia and ultimately higher grain yield. The number of grains per ear is mainly determined by the number of floret primordia, with no trade-off between grain number and other yield components. N-responsive maize cultivars exhibit higher ear growth rate and allocate more N to the ear, resulting in greater differentiation of floret primordia and higher grain number.
FIELD CROPS RESEARCH
(2022)
Article
Agronomy
Ruoqing Zhang, Danni Yang, Sien Li, Jinliang Chen, Dan Hu, Hui Guo, Chunyu Wang, Yahui Wang, Xue Cong
Summary: The patterns of biomass allocation in maize were studied using a newly developed model. The study found that as water and nutrient stress levels increased, the shoot to root ratio decreased. The model showed good performance in predicting maize growth and biomass allocation, and indicated a relationship between allocation strategies and yield.
Article
Soil Science
Ming Lang, Xia Li, Chaoyuan Zheng, Haigang Li, Junling Zhang
Summary: In this study, shading was found to significantly decrease soluble sugar concentration in the phloem of mycorrhizal maize, leading to a decrease in root biomass under shading conditions. Additionally, mycorrhizal P response decreased with increasing P supply levels. The findings suggest a tight linkage between carbon allocation and P uptake systems in maintaining mycorrhizal functioning in agroecosystems.
APPLIED SOIL ECOLOGY
(2021)
Article
Plant Sciences
Xian-Min Chen, Feng-Yuan Li, Shuai Dong, Xin-Fang Liu, Bin-Bin Li, Zu-Dong Xiao, Tao Deng, Yan-Bo Wang, Si Shen, Shun-Li Zhou
Summary: Ear architecture plays a crucial role in drought resistance, with stubby ears performing better in terms of yield under drought stress. Asynchronous pollination suppresses silk emergence.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Plant Sciences
Qincheng Li, Jie Shi, Chaolong Huang, Jingfei Guo, Kanglai He, Zhenying Wang
Summary: Field trials were conducted to investigate the relationship between Asian corn borer infestation, Fusarium verticillioides infection, yield loss, and fumonisin contamination in maize. The results showed that infestation by the Asian corn borer significantly promoted F. verticillioides infection and grain fumonisin levels. These findings suggest that Asian corn borer infestation can lead to severe quality degradation and yield loss of maize, with potential threats to food and feed security.
Article
Plant Sciences
Fu Qian, Jianguo Jing, Zhanqin Zhang, Shubin Chen, Zhiqin Sang, Weihua Li
Summary: In this study, the genetic basis of ear traits in maize were analyzed using a panel of 580 maize inbred lines. Through genomic sequencing and genome-wide association study, several significant single nucleotide polymorphisms (SNPs) and potential candidate genes associated with ear-related traits were identified. Additionally, meta-QTL analysis was conducted to further uncover the genetic loci related to maize yield. These findings provide valuable insights for understanding the genetic basis of ear traits and improving maize yield.
Article
Plant Sciences
Haohan Sun, Wei Li, Yuwen Liang, Guanghao Li
Summary: Shading stress during the plum rain season had a significant impact on the productivity of fresh waxy maize in Southern China. Field experiments were conducted to investigate the effects of shading at different stages after pollination on yield, accumulation, and remobilization of dry matter and nitrogen in fresh waxy maize. Results showed that shading reduced ear and grain yield and increased moisture content. Shading also decreased post-silking dry matter and nitrogen accumulation and remobilization, while increasing pre-silking dry matter and nitrogen remobilization.
Article
Plant Sciences
Juan Hu, Baizhao Ren, Yuhai Chen, Peng Liu, Bin Zhao, Jiwang Zhang
Summary: This study found that the application of 6-benzyladenine (6-BA) can increase the yield of summer maize by improving hormone and sugar metabolism. The application of 6-BA at specific stages can enhance invertase activity, establish sink strength, and improve sugar metabolism, resulting in improved structure and development of summer maize, ultimately leading to increased yield.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Majid Alikhani-Koupaei, Abdollah Ehtesham Nia
Summary: This study investigated the impact of reducing sink on source in On-palms with a bunch number greater than eight. The study found that removing bunches stabilized yield components and fruit size during mid-Kimri, suggesting a sink limitation. Bunch thinning increased these indicators compared to normal trees with a bunch number between six and eight, indicating a source limitation.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Agriculture, Multidisciplinary
Liang Xiao-gui, Shen Si, Gao Zhen, Zhang Li, Zhao Xue, Zhou Shun-li
Summary: The study found that exposure to extended darkness in maize leaves resulted in reduced plant growth, decreased chlorophyll levels, but unaffected net CO2 exchange rate. Accumulation of starch and total soluble carbohydrates in mature leaves decreased under extended darkness, while the percentage of daily C fixation reserved in leaves increased.
JOURNAL OF INTEGRATIVE AGRICULTURE
(2021)
Article
Agronomy
Lia B. Olmedo Pico, Cankui Zhang, Tony J. Vyn
Summary: The study indicates that nitrogen significantly affects kernel weight in maize by impacting endosperm cell number, with low nitrogen treatments limiting kernel weight gains during the early post-silking stage. Higher nitrogen availability, regardless of timing and plant density, increases final kernel weight by enhancing individual kernel sink capacity through gains in endosperm cell number during lag-period development.
FIELD CROPS RESEARCH
(2021)
Article
Plant Sciences
Yuling Gao, Xiaolin Zhang, Xin Wang, Qi Zhang, Huarong Tang, Tian Qiu, HuiLai Zhang, Bingxin Zhao, Hao Wang, Xilong Liang, Yongxia Guo
Summary: The application of DCPTA significantly improves the yield of mung bean by increasing the number of pods and grains per plant and pod setting rate. It also enhances leaf area and fresh weight, plant height, and various parameters related to photosynthesis. Transcriptome sequencing analysis reveals that DCPTA treatment promotes the expression of genes related to sugar metabolism in various organs of mung bean.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agronomy
Ziyu Yang, Yuping Zhang, Yizhe Wang, Hanfeng Zhang, Qirui Zhu, Bojing Yan, Jiangchi Fei, Xiangmin Rong, Jianwei Peng, Gongwen Luo
Summary: Intercropping treatments have positive effects on maize productivity and phosphorus cycling, improving yield and phosphorus use efficiency while reducing phosphorus runoff. Compared with monoculture, intercropping treatments significantly increase the availability of phosphorus and phosphatase activity in the soil. Maize productivity is strongly correlated with soil phosphorus content and microbial activity.
FIELD CROPS RESEARCH
(2022)
Article
Plant Sciences
Jinlong Zhou, Lei Tian, Shunxi Wang, Hongping Li, Yali Zhao, Moubiao Zhang, Xiuling Wang, Panpan An, Chaohai Li
Summary: Maize crops on the North China Plain often suffer from combined waterlogging and shading stress at the flowering stage, leading to significant yield losses. Phenotypic, physiological, and metabolomic analyses revealed that the dual stress conditions disrupted normal metabolic processes and caused oxidative stress in ovaries and silks.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Agronomy
Qian Sun, Xiaohe Gu, Liping Chen, Xuzhou Qu, Sen Zhang, Jingping Zhou, Yuchun Pan
Summary: This study aimed to explore the ability of hyperspectral technology to estimate maize yield loss under lodging stress. The changes of canopy hyperspectral and per unit yield loss of maize in multiple growth stages were analyzed, and models were constructed using the fractional-order differential transform and recursive feature elimination methods. The results showed that the estimation accuracy of maize yield under lodging stress could be improved by using fractional-order differential transform and spectral feature selection methods. Therefore, hyperspectral technology could be used to quickly estimate maize yield loss under lodging stress.
FIELD CROPS RESEARCH
(2023)