National Academy of Agricultural Sciences (NAAS)
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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 |
The flag leaf is the last to emerge indicating the transition from crop growth to grain production. Photosynthesis in this leaf provides the majority of the carbohydrates for grain filling. So it is the important leaf for yield potential. Flag leaf size and area can significantly improve the grain yield. A rice field at panicle initiation was chosen to take the observation on physiological efficiency (Photosynthetic rate, transpiration rate and stomatal conductance) using Infra red Gas Analyser in lower, middle and flag leaf. Photosynthetic rate of flag leaf is higher an average of 7.56 µ mol m-2 Sec-1 for facilitating the translocation of nutrients. Lower leaf has recorded a photosynthetic rate of 2.96. Transpiration rate is in the range of 2.02 to 1.75. stomatal conductance was 0.27 in flag leaf which is lesser than middle leaf (0.29).
Adachi S, Yoshikawa K, Yamanouchi U, Tanabata T, Sun J, Ookawa T, Yamamoto T, Sage RF, Hirasawa T, Yonemaru J. 2017. Fine mapping of Carbon Assimilation Rate, a quantitative trait locus for flag leaf nitrogen content, stomatal conductance and photosynthesis in rice. Frontiers in Plant Science 8, 60. https://doi.org/10.3389/fpls.2017.00060
Fabre D, Adriani D E, Dingkuhn M, Ishimaru T, Punzalan B, Lafarge T, Clément-Vidal A, Luquet D. 2016. The qTSN4 effect on flag leaf size, photosynthesis and panicle size, benefits to plant grain production in rice, depending on light availability. Frontiers in Plant Science 7, 623. https://doi.org/10.3389/fpls.2016.00623
Leng Y, Ye G, Zeng D. 2017. Genetic dissection of leaf senescence in rice. International Journal of Molecular Breeding 18, 2686. https://doi.org/10.3390/ijms18122686
Mathan J, Singh A, Jathar V, Ranjan A. High photosynthesis rate in two wild rice species is driven by leaf anatomy mediating high Rubisco activity and electron transport rate. J Exp Bot. 2021 Oct 26;72(20):7119-7135. https://doi.org/10.1093/jxb/erab313.
Nurul Hidyati, Triadaiti and Iswandi Anas, Photosynthesis and Transpiration Rates of Rice Cultivated Under the System of Rice Intensification and the Effects on Growth and Yield. 2016. Hayati Journal of biosciences. 23(2):67-72 https://doi.org/10.4308/hjb.23.2.67
Yuan-zheng Wang, Olusegun Idowu, Yun Wang, Koki Homma, Tetsuya Nakazaki, Wen-Jing Zheng, Zheng-Jin Xu & Tatsuhiko Shiraiwa. (2023) Effects of erect panicle genotype and environment interactions on rice yield and yield components. Journal of Integrative Agriculture 22:3, pages 716-726. https://doi.org/10.1016/j.jia.2022.08.013
Zhang, Q., Tang, W., Peng, S., & Li, Y. (2021). Limiting factors for panicle photosynthesis at the anthesis and grain filling stages in rice (Oryza sativa L.). The Plant Journal, 109(1), 77-91. https://doi.org/10.1111/tpj.15554
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