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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(9): 600-611
DOI: https://doi.org/10.20546/ijcmas.2020.909.076


Non Structural Carbohydrate Accumulation in Plant Parts of Rice Genotypes Grown under Drought and Open Field: A comparative Study
Eity Kumari1, Sareeta Nahakpam1* and Sweta Sinha2
1Department of Plant Physiology and Biochemistry, 2Department of Molecular Biology and Genetic Engineering, Bihar Agricultural University, Sabour, Bihar, India
*Corresponding author
Abstract:

The present study was carried out in sixteen genotypes having different aptitude for tolerance to stress.  Drought stress was imposed at early reproductive phase of growth. Despites of reduction in plant height and number of tillers, genotypes have shown least reduction in the grain yield under drought stress. Interestingly, genotypes like Sabour Sampann, Sabour Ardhjal and BRR-0028 showed higher adaptive responses with least reduction in plant height of less than 10% under drought than open field. Also, the number of tillers in BR-0028 and BRR-0063 were remained same in both the situation suggesting specificity of genotypic responses. Moreover, genotype BRR-0028, Sabour Sampann and Sabour Ardhjal showed higher yield retention with least reduction in the yield of only 25%, 30% and 31% respectively under drought stress. It implied the persuasion of accumulated CHO at unambiguous phase of growth period. CHO accumulated higher in leaf sheath (176.5 mg-1 g fresh wt) at 45 days of growth which gradually decreased (93.29 mg-1 g fresh wt) with increasing days in genotype Sabour Ardhjal at 75 days of growth. The same genotype revealed alter CHO accumulation in plant parts with highest in Culm (83.38 mg-1 g fresh wt), three fold higher than the leaf blade and leaf sheath during drought stress.  The result also supported by the higher LAI/LAD during the early reproductive phase between 45 to 60 days of growth and suggested to explicit longer period for assimilates accumulation and sink development for better grain yield in rice under reproductive drought.


Keywords: Rice, drought stress, Non structural carbohydrates, Grain yield, Growth parameters
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How to cite this article:

Eity Kumari, Sareeta Nahakpam and Sweta Sinha. 2020. Non Structural Carbohydrate Accumulation in Plant Parts of Rice Genotypes Grown under Drought and Open Field: A comparative Study.Int.J.Curr.Microbiol.App.Sci. 9(9): 600-611. doi: https://doi.org/10.20546/ijcmas.2020.909.076