Germination and Seedling Development of Canola (Brassica napus L.) in Response to Contrasting Temperature Regimes

Journal of Environmental and Agricultural Sciences (JEAS). Hashmi et al., 2024. 26(1&2):XX.

Open Access – Research Article

Germination and Seedling Development of Canola (Brassica napus L.) in Response to Contrasting Temperature Regimes
Qasim Ali Hashmi 1,*, Barkat Nawaz 1, Raheel Ahmad 1, Muhammad Wassay 1, Muhammad Usama 1, Tasadaq Hussain Ali 1, Muhammad Shahid Nawaz 1, Muhammad Kamran 2

1 Department of Agronomy, University of Agriculture, Faisalabad 38000, Pakistan
2 Department of Biotechnology, Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi 46300, Pakistan


Abstract:  A controlled environment experiment was conducted to investigate the impact of temperature on various physiological characteristics of canola crops. Plants of canola cultivar Rachna Canola were exposed to four temperature regimes (14°C, 7°C, 21°C, and 28°C) under a controlled incubator environment, at Crop Physiology Laboratory, University of Agriculture Faisalabad (UAF), Pakistan. Treatments were arranged using a randomized complete block design (RCBD). Temperature-responsive modifications in light emission encompassed values of 14°C (200–300 mol/m2/s), 7°C (150–250 mol/m2/s), 21°C (300–400 mol/m2/s), and 28°C (350–450 mol/m2/s). A consistent balance of blue and red wavelengths was maintained uniformly under all temperature treatments. Data pertaining to germination percentage, mortality rate, plant height, crop growth rate, and leaf area were recorded and subjected to statistical analysis. Obtained results showed that Temperature treatments significantly influenced all investigated parameters. Cooler temperatures (14°C) resulted in the highest germination rate (93.33%), lowest mortality (8.67%), increased plant height, and higher leaf area. Conversely, higher temperatures (28°C) showed a lower germination rate (45.00%), higher mortality (36.67%), and stunted growth, indicating the adverse heat effects. These results suggest that optimal canola production may require appropriate management strategies to mitigate heat stress during early crop growth.

Keywords: Oilseed crop, abiotic stress, temperature stress, optimum growth temperature, stress response, crop growth rate, seedling mortality.
*Corresponding author:
Qasim Ali Hashmi, 2019ag8121@uaf.edu.pk

Cite this article as:

Hasmi, Q.A., B. Nawaz, R. Ah,ad, M. Wassaya, M. Usama, T.H. Ali, M.S. Nawaz and M. Kamran. 2024. Germination and seedling development of canola (Brassica napus L.) in response to contrasting temperature regimes. Journal of Environmental & Agricultural Sciences. 26 (1&2):xx-xx [Abstract] [View FullText] [Citations]. 


Copyright © Hashmi et al., 2024  This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium provided the original author and source are appropriately cited and credited.


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Competing Interest Statement: The authors have declared that they have no competing interests and there is no conflict of interest exists.


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