International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:9, September, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
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

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

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:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.