N-acetylcysteine increased rice yield

Authors : Mohd NOZULAIDI, Md Sarwar JAHAN, Mohd KHAIRI, Mohammad Moneruzzaman KHANDAKER, Mat NASHRIYAH, Yusop Mohd KHANIF

Pages : 204-0

Doi:10.3906/tar-1402-48

View : 14 | Download : 7

Publication Date : 2015-04-01

Article Type : Research Paper

Abstract :N-acetylcysteine insert ignore into journalissuearticles values(NAC); biosynthesized reduced glutathione insert ignore into journalissuearticles values(GSH);, which maintains redox homeostasis in plants under normal and stressful conditions. To justify the effects of NAC on rice production, we measured yield parameters, chlorophyll insert ignore into journalissuearticles values(Chl); content, minimum Chl fluorescence insert ignore into journalissuearticles values(Fo);, maximum Chl fluorescence insert ignore into journalissuearticles values(Fm);, quantum yield insert ignore into journalissuearticles values(Fv/Fm);, net photosynthesis rate insert ignore into journalissuearticles values(Pn);, photosynthetically active radiation insert ignore into journalissuearticles values(PAR);, and relative water content insert ignore into journalissuearticles values(RWC);. Four treatments, N1G0 insert ignore into journalissuearticles values(nitrogen insert ignore into journalissuearticles values(N); with no NAC);, N1G1 insert ignore into journalissuearticles values(N with NAC);, N0G0 insert ignore into journalissuearticles values(no N and no NAC);, and N0G1 insert ignore into journalissuearticles values(no N but with NAC);, were arranged in a completely randomized design with five replications. Nitrogen significantly increased yield and yield parameters of rice plants. Moreover, NAC treatment increased panicle numbers, filled grains per panicle, and yield of rice plants. Nitrogen significantly increased Chl content, Chl fluorescence parameters insert ignore into journalissuearticles values(Fm, Fv/Fm ratio);, Pn rate, and PAR in leaves of the rice plants. Furthermore, NAC treatment induced Chl content, Chl fluorescence insert ignore into journalissuearticles values(Fm, Fv/Fm ratio);, Pn, and PAR in leaves of the rice plants regardless of N treatment. NAC significantly increased RWC in leaves of N-untreated rice plants. In conclusion, this study suggests that NAC may enhance rice yield through modulating physiological functions of rice plants.
Keywords : Chlorophyll content, glutathione, N acetyl cysteine, Oryza sativa, photosynthesis, relative water content