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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 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(3): 1514-1522
DOI: https://doi.org/10.20546/ijcmas.2019.803.175


Screening of Paddy (Oryza sativa L.) Genotypes for Zinc Efficiency under Different Moisture and Salt Stress Condition in Semi-Arid Vertisols
M. Prabhavathi1*, Hrittick Biswas1 and N. Chandra Sekharan2
1ICAR-Indian Institute of Soil and Water Conservation, Research Centre, Ballari, Karnataka, India
2Department of Soil Science and Agricultural Chemistry, TNAU, Coimbatore, Tamil Nadu, India
*Corresponding author
Abstract:

A pot culture experiment was conducted at ICAR-IISWC, Ballari, Karnataka during 2016 to screen seven paddy genotypes receiving zinc fertilization for their zinc use efficiency under various moisture regimes. The experiment was laid out in a completely randomized design with two replications. At 30 days after transplanting (DAT), the plant height in M2 treatment (Saturated Soil Culture) was higher which was at par with the continuous flooding (M1) and was significantly different with the Alternate Wetting and Drying (M3). The genotype NLR 34449 produced significantly taller plants (23.8 cm) as compared to GGV 0501 (19.1 cm), which was at par with rest of the paddy genotypes. No significant differences in chlorophyll content index (CCI) were observed among different moisture regimes at vegetative stage. But, M1 and M3 treatment induced higher CCI values at tillering and panicle initiation stage, respectively. The AWD resulted in the lowest grain yield while SSC recorded the highest grain yield that was at par with the continuous flooding. Among seven salt tolerant paddy genotypes, TRY 3 was the most efficient, whereas rests of the genotypes were classified as moderately efficient. The results therefore suggested that maintaining rice plants at a saturated condition throughout the growing period helps to attain significant increase in the grain yield besides saving water under water scarce environment.


Keywords: Plant height, Chlorophyll content index, TRY 3, Grain yield, Zinc use efficiency
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How to cite this article:

Prabhavathi, M., Hrittick Biswas and Chandra Sekharan, N. 2019. Screening of Paddy (Oryza sativa L.) Genotypes for Zinc Efficiency under Different Moisture and Salt Stress Condition in Semi-Arid Vertisols.Int.J.Curr.Microbiol.App.Sci. 8(3): 1514-1522. doi: https://doi.org/10.20546/ijcmas.2019.803.175