Crop Improvement for Nitrogen Use Efficiency in Irrigated Lowland Rice

2011 ◽  
pp. 211-225 ◽  
Author(s):  
Shaobing Peng
Keyword(s):  
Nitrogen Use Efficiency ◽  
Crop Improvement ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Use Efficiency

Effect of Water Depth on Nitrogen Use Efficiency and Nitrogen‐15 Balance in Lowland Rice 1

1987 ◽  
Vol 79 (2) ◽  
pp. 210-216 ◽  
Author(s):  
S. K. De Datta ◽  
W. N. Obcemea ◽  
R. Y. Chen ◽  
J. C. Calabio ◽  
R. C. Evangelista
Keyword(s):  
Water Depth ◽  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Effect Of Water ◽  
Use Efficiency

Nitrogen-use efficiency in tropical lowland rice systems: contributions from indigenous and applied nitrogen

1996 ◽  
Vol 47 (1) ◽  
pp. 1-12 ◽  
Author(s):  
K.G. Cassman ◽  
G.C. Gines ◽  
M.A. Dizon ◽  
M.I. Samson ◽  
J.M. Alcantara
Keyword(s):  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Tropical Lowland ◽  
Use Efficiency ◽  
Applied Nitrogen

Nitrous oxide and nitric oxide emissions and nitrogen use efficiency as affected by nitrogen placement in lowland rice fields

2017 ◽  
Vol 110 (2) ◽  
pp. 277-291 ◽  
Author(s):  
Yam Kanta Gaihre ◽  
Upendra Singh ◽  
S. M. Mofijul Islam ◽  
Azmul Huda ◽  
M. R. Islam ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Nitrous Oxide ◽  
Nitrogen Use Efficiency ◽  
Rice Fields ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Nitric Oxide Emissions ◽  
Use Efficiency

scholarly journals Nitrogen Use Efficiency Phenotype and Associated Genes: Roles of Germination, Flowering, Root/Shoot Length and Biomass

2021 ◽  
Vol 11 ◽  
Author(s):  
Narendra Sharma ◽  
Vimlendu Bhushan Sinha ◽  
N. Arun Prem Kumar ◽  
Desiraju Subrahmanyam ◽  
C. N. Neeraja ◽  
...  
Keyword(s):  
Nitrogen Use Efficiency ◽  
Complex Traits ◽  
Indica Rice ◽  
Crop Improvement ◽  
Principal Component ◽  
Partial Least Square ◽  
Least Square ◽  
Nitrogen Use ◽  
Low Level ◽  
Use Efficiency

Crop improvement for Nitrogen Use Efficiency (NUE) requires a well-defined phenotype and genotype, especially for different N-forms. As N-supply enhances growth, we comprehensively evaluated 25 commonly measured phenotypic parameters for N response using 4 N treatments in six indica rice genotypes. For this, 32 replicate potted plants were grown in the green-house on nutrient-depleted sand. They were fertilized to saturation with media containing either nitrate or urea as the sole N source at normal (15 mM N) or low level (1.5 mM N). The variation in N-response among genotypes differed by N form/dose and increased developmentally from vegetative to reproductive parameters. This indicates survival adaptation by reinforcing variation in every generation. Principal component analysis segregated vegetative parameters from reproduction and germination. Analysis of variance revealed that relative to low level, normal N facilitated germination, flowering and vegetative growth but limited yield and NUE. Network analysis for the most connected parameters, their correlation with yield and NUE, ranking by Feature selection and validation by Partial least square discriminant analysis enabled shortlisting of eight parameters for NUE phenotype. It constitutes germination and flowering, shoot/root length and biomass parameters, six of which were common to nitrate and urea. Field-validation confirmed the NUE differences between two genotypes chosen phenotypically. The correspondence between multiple approaches in shortlisting parameters for NUE makes it a novel and robust phenotyping methodology of relevance to other plants, nutrients or other complex traits. Thirty-Four N-responsive genes associated with the phenotype have also been identified for genotypic characterization of NUE.

Rice yields and nitrogen use efficiency with different fertilizers and water management under intensive lowland rice cropping systems in Bangladesh

2016 ◽  
Vol 106 (2) ◽  
pp. 143-156 ◽  
Author(s):  
S. M. Mofijul Islam ◽  
Yam Kanta Gaihre ◽  
A. L. Shah ◽  
Upendra Singh ◽  
Md Imran Ullah Sarkar ◽  
...  
Keyword(s):  
Water Management ◽  
Nitrogen Use Efficiency ◽  
Cropping Systems ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Rice Yields ◽  
Use Efficiency ◽  
Rice Cropping Systems

The role of Azolla cover in improving the nitrogen use efficiency of lowland rice

2004 ◽  
Vol 263 (1) ◽  
pp. 311-321 ◽  
Author(s):  
Maria Andrea R. de Macale ◽  
Paul L.G. Vlek
Keyword(s):  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Use Efficiency

Lowland Rice Genotypes Evaluation for Nitrogen Use Efficiency

2014 ◽  
Vol 37 (9) ◽  
pp. 1410-1423 ◽  
Author(s):  
N. K. Fageria ◽  
A. B. Santos
Keyword(s):  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Rice Genotypes

scholarly journals Nitrogen-Use Efficiency in Lowland Rice Genotypes under Field Conditions

2013 ◽  
Vol 44 (17) ◽  
pp. 2497-2506 ◽  
Author(s):  
N. K. Fageria ◽  
A. B. dos Santos ◽  
J. P. de Oliveira
Keyword(s):  
Nitrogen Use Efficiency ◽  
Lowland Rice ◽  
Field Conditions ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Rice Genotypes
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