@article {10.3844/ojbsci.2021.206.212,
article_type = {journal},
title = {Effects of Nitrogen Fertilizer on Grain Yield and Fragrant Contents in two Thai Rice Varieties},
author = {Kongpun, Ayut and Prom-u-Thai, Chanakan Thebault},
volume = {21},
number = {3},
year = {2021},
month = {Jul},
pages = {206-212},
doi = {10.3844/ojbsci.2021.206.212},
url = {https://thescipub.com/abstract/ojbsci.2021.206.212},
abstract = {Nitrogen (N) is commonly applied in rice crop production for improving grain quality and productivity. This experiment aimed to evaluate how applying N fertilizer affects the concentration of 2-Acetyl-1-Pyrroline (2AP), the major fragrant compound in rice grains, between two selected rice varieties with high yield potential and fragrant scent, Pathum Thani 1 (PTT1) and RD22. Rice plants were grown in pot conditions and N fertilizer was applied in three rates at 2.44, 3.82 and 5.66 g N/pot designated as N1, N2 and N3, respectively. Rice samples were harvested at maturity and evaluated for grain yield, grain N and 2AP concentration. The results revealed that grain yield and concentration of N and 2AP were affected by N rates differently between the varieties; RD22 had higher grain yield and the concentrations of N and 2AP than PTT1 with all N rates. Grain N concentration in both varieties increased when increasing N rates. There was highly positive correlation between grain N and grain 2AP concentration among the N rates and varieties. We conclude that applying N in rice cultivation not only improves productivity but also enhances the quality of rice grains by improving the concentrations of N and 2AP, the magnitude of the effect depending on the rice variety.},
journal = {OnLine Journal of Biological Sciences},
publisher = {Science Publications}
}