Foliar application of silicon boosts growth, photosynthetic leaf gas exchange, antioxidative response and resistance to limited water irrigation in sugarcane (Saccharum officinarum L.)
文献类型： 外文期刊
作者： Verma, Krishan K. 1 ; Song, Xiu-Peng 1 ; Zeng, Yuan 2 ; Guo, Dao-Jun 1 ; Singh, Munna 4 ; Rajput, Vishnu D. 5 ; Malviy 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Guangxi Key Lab Sugarcane Genet Improvement, Sugarcane Res Inst,Minist Agr & Rural Affairs, Key Lab Sugarcane Biotechnol & Genet Improvement, Nanning 530007, Guangxi, Peoples R China
2.Guangxi Acad Agr Sci, Int Cooperat Div, Nanning 530007, Guangxi, Peoples R China
3.Guangxi Univ, Coll Agr, Nanning 530004, Guangxi, Peoples R China
4.Univ Lucknow, Dept Bot, Lucknow 226007, Uttar Pradesh, India
5.Southern Fed Univ, Acad Biol & Biotechnol, Rostov Na Donu 344090, Russia
6.Liuzhou Inst Agr Sci, Liuzhou 545003, Guangxi, Russia
7.Guangxi Acad Agr Sci, Microbiol Inst, Nanning 530007, Peoples R China
8.Guangxi Acad Agr Sci, Inst Biotechnol, Nanning 530007, Guangxi, Peoples R China
关键词： Antioxidants; Chlorophyll content; Fv/Fm; Limited irrigation; Photosynthetic leaf gas exchange; Saccharum spp.; Silicon
期刊名称：PLANT PHYSIOLOGY AND BIOCHEMISTRY （ 影响因子：4.27； 五年影响因子：4.816 ）
ISSN： 0981-9428
年卷期： 2021 年 166 卷
页码：
收录情况： SCI
摘要： Plant cell and water relationship regulates morphological, physiological and biochemical characteristics to optimize carboxylation for enhanced biomass yield in sugarcane. Insufficient water irrigation is one of the serious problems to impair potential yield of agriculturally important sugarcane cash crop by loss in plant performance. Our study aims to reveal consequences of foliar spray of silicon (Si) using calcium metasilicate powder (Wollastonite, CaO center dot SiO2) to alleviate the adverse effects of limited water irrigation in sugarcane. Silicon (0, 50, 100 and 500 ppm) was applied as foliar spray on normally grown 45 days old sugarcane plants. Further, these plants were raised at half field capacity (50%) using water irrigation precisely up to 90 days under open environmental variables. Consequently, restricted irrigation impaired plant growth-development, leaf relative water content (%), photosynthetic pigments, SPAD unit, photosynthetic performance, chlorophyll fluorescence variable yield (Fv/Fm) and biomass yield. Notably, it has enhanced values of proline, hydrogen peroxide (H2O2), malondialdehyde (MDA), antioxidative defense enzyme molecules viz., catalase (CAT), ascorbate peroxidase (APx) and superoxide dismutase (SOD). The foliar spray of Si defended sugarcane plants from limited water irrigation stress as Si quenched harmful effect of water-deficit and also enhanced the operation of antioxidant defense machinery for improved sugarcane plant performance suitably favored stomatal dynamics for photosynthesis and plant productivity.
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