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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39
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.2018.7(9): 3041-3048
DOI: https://doi.org/10.20546/ijcmas.2018.709.379


Growing Degree Days Accumulation of Wheat (Triticum aestivum L.) Cultivars as Influenced by Different Nitrogen Level
Sukhpreet Kaur Sidhu* and Tilak Raj
Department of Botany, Punjab Agricultural University, Ludhiana 141004, Punjab, India
*Corresponding author
Abstract:

A field experiment was conducted to work out relationship between growing degree days and phenophases of three wheat cultivars (PBW-550, PBW-502 and PBW-343) under two nitrogen doses@ 120 and 180 kg N ha-1, respectively. There was 18.94 percent reduction in growing degree days (GDD) at physiological maturity under120 kg ha-1 nitrogen level cumulative in comparison to 180 kg N ha-1. It was concluded that Cultivar (Cv.) PBW-343 accumulated more growing degree days under both nitrogen levels. The reduction in growing degree days from 180 kg N ha-1 to 120 kg N ha-1 was 9.27 per cent in Cv. PBW-502 followed by Cv. PBW-550 (8.63%).The regression model revealed significant positive correlation between GDD and yield at booting (R2 = 0.4709), leaf development completion (R2 = 0.4415) and soft dough (R2 = 0.3729).


Keywords: Wheat Cultivars Phenology, Nitrogen Doses, Regression model, Growing degree days
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How to cite this article:

Sukhpreet Kaur Sidhu and Tilak Raj. 2018. Growing Degree Days Accumulation of Wheat (Triticum aestivum L.) Cultivars as Influenced by Different Nitrogen Level.Int.J.Curr.Microbiol.App.Sci. 7(9): 3041-3048. doi: https://doi.org/10.20546/ijcmas.2018.709.379