Understanding Yield Response to Nitrogen to Achieve High Yield and High Nitrogen Use Efficiency in Rainfed Corn

2012 ◽  
Vol 104 (1) ◽  
pp. 165-168 ◽  
Author(s):  
Qiang Gao ◽  
Cuilan Li ◽  
Guozhong Feng ◽  
Jianfeng Wang ◽  
Zhenling Cui ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
High Yield ◽  
Yield Response ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Use Efficiency

Root Morphological and Physiological Characteristics of Rice Cultivars with High Yield and High Nitrogen Use Efficiency

2013 ◽  
Vol 38 (4) ◽  
pp. 648-656 ◽  
Author(s):  
Min LI ◽  
Hong-Cheng ZHANG ◽  
Xiong YANG ◽  
Meng-Jie GE ◽  
Qun MA ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Physiological Characteristics ◽  
High Yield ◽  
Rice Cultivars ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Use Efficiency

Designing Corn Management Strategies for High Yield and High Nitrogen Use Efficiency

2016 ◽  
Vol 108 (2) ◽  
pp. 922-929 ◽  
Author(s):  
Jiameng Guo ◽  
Yonghong Wang ◽  
Tinglu Fan ◽  
Xinping Chen ◽  
Zhenling Cui
Keyword(s):  
Nitrogen Use Efficiency ◽  
Management Strategies ◽  
High Yield ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Use Efficiency

scholarly journals The rice production practices of high yield and high nitrogen use efficiency in Jiangsu, China

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Jiuxin Guo ◽  
Xiangyu Hu ◽  
Limin Gao ◽  
Kailiu Xie ◽  
Ning Ling ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Rice Production ◽  
High Yield ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Production Practices

scholarly journals Adaptation Mechanism of Roots to Low and High Nitrogen Revealed by Proteomic Analysis

Rice ◽  
2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Wei Xin ◽  
Lina Zhang ◽  
Jiping Gao ◽  
Wenzhong Zhang ◽  
Jun Yi ◽  
...  
Keyword(s):  
Root Growth ◽  
Nitrogen Use Efficiency ◽  
Root Morphology ◽  
Nitrogen Availability ◽  
Rice Root ◽  
Global Changes ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Rice Roots ◽  
Use Efficiency

Abstract Background Nitrogen-based nutrients are the main factors affecting rice growth and development. Root systems play an important role in helping plants to obtain nutrients from the soil. Root morphology and physiology are often closely related to above-ground plant organs performance. Therefore, it is important to understand the regulatory effects of nitrogen (N) on rice root growth to improve nitrogen use efficiency. Results In this study, changes in the rice root traits under low N (13.33 ppm), normal N (40 ppm) and high N (120 ppm) conditions were performed through root morphology analysis. These results show that, compared with normal N conditions, root growth is promoted under low N conditions, and inhibited under high N conditions. To understand the molecular mechanism underlying the rice root response to low and high N conditions, comparative proteomics analysis was performed using a tandem mass tag (TMT)-based approach, and differentially abundant proteins (DAPs) were further characterized. Compared with normal N conditions, a total of 291 and 211 DAPs were identified under low and high N conditions, respectively. The abundance of proteins involved in cell differentiation, cell wall modification, phenylpropanoid biosynthesis, and protein synthesis was differentially altered, which was an important reason for changes in root morphology. Furthermore, although both low and high N can cause nitrogen stress, rice roots revealed obvious differences in adaptation to low and high N. Conclusions These results provide insights into global changes in the response of rice roots to nitrogen availability and may facilitate the development of rice cultivars with high nitrogen use efficiency through root-based genetic improvements.

scholarly journals Relationship of Nitrogen Use Efficiency with the Activities of Enzymes Involved in Nitrogen Uptake and Assimilation of Finger Millet Genotypes Grown under Different Nitrogen Inputs

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Nidhi Gupta ◽  
Atul K. Gupta ◽  
Vikram S. Gaur ◽  
Anil Kumar
Keyword(s):  
Nitrogen Uptake ◽  
Nitrogen Use Efficiency ◽  
Finger Millet ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Nitrogen Uptake Efficiency ◽  
Yield Parameters ◽  
Use Efficiency ◽  
Low Nitrogen ◽  
Nitrogen Conditions

Nitrogen responsiveness of three-finger millet genotypes (differing in their seed coat colour) PRM-1 (brown), PRM-701 (golden), and PRM-801 (white) grown under different nitrogen doses was determined by analyzing the growth, yield parameters and activities of nitrate reductase (NR), glutamine synthetase (GS), glutamate synthase; GOGAT, and glutamate dehydrogenase (GDH) at different developmental stages. High nitrogen use efficiency and nitrogen utilization efficiency were observed in PRM-1 genotype, whereas high nitrogen uptake efficiency was observed in PRM-801 genotype. At grain filling nitrogen uptake efficiency in PRM-1 negatively correlated with NR, GS, GOGAT activities whereas it was positively correlated in PRM-701 and PRM-801, however, GDH showed a negative correlation. Growth and yield parameters indicated that PRM-1 responds well at high nitrogen conditions while PRM-701 and PRM-801 respond well at normal and low nitrogen conditions respectively. The study indicates that PRM-1 is high nitrogen responsive and has high nitrogen use efficiency, whereas golden PRM-701 and white PRM-801 are low nitrogen responsive genotypes and have low nitrogen use efficiency. However, the crude grain protein content was higher in PRM-801 genotype followed by PRM-701 and PRM-1, indicating negative correlation of nitrogen use efficiency with source to sink relationship in terms of seed protein content.

Maize yield response, nitrogen use efficiency and financial returns to fertilizer on smallholder farms in southern Africa

Food Security ◽  
2017 ◽  
Vol 9 (3) ◽  
pp. 577-593 ◽  
Author(s):  
Bashir Jama ◽  
David Kimani ◽  
Rebbie Harawa ◽  
Abednego Kiwia Mavuthu ◽  
Gudeta W. Sileshi
Keyword(s):  
Southern Africa ◽  
Nitrogen Use Efficiency ◽  
Maize Yield ◽  
Yield Response ◽  
Financial Returns ◽  
Nitrogen Use ◽  
Smallholder Farms ◽  
Use Efficiency

The Effect of Nitrogen Fertilizer Treatments on Root traits and Nitrogen Use Efficiency inIndicaRice Varieties with High Nitrogen absorption Efficiency

2016 ◽  
Vol 36 (3) ◽  
Author(s):  
董桂春 DONG Guichun ◽  
陈琛 CHEN Chen ◽  
袁秋梅 YUAN Qiumei ◽  
羊彬 YANG Bin ◽  
朱正康 Zhu Zhengkang ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Nitrogen Fertilizer ◽  
Root Traits ◽  
Absorption Efficiency ◽  
Nitrogen Absorption ◽  
High Nitrogen ◽  
Nitrogen Use ◽  
Use Efficiency
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