Does Exogenous Vitamins Improve the Morphophysiological Condition of Sugarcane Subjected to Water Deficit?

Most of the areas cultivated with sugarcane around the world are subject to a period of water deficiency, reducing the productive potential of the crop. Management techniques that allow a greater resistance of plants concerning this stress can be an important tool for the better reestablishment of p...

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Bibliographic Details
Published in:	Sugar tech : an international journal of sugar crops & related industries Vol. 25; no. 1; pp. 262 - 267
Main Authors:	Ramos, Emanuel Bispo, Ramos, Samuel Bispo, Ramos, Sérgio Bispo, de Figueiredo, Paulo Alexandre Monteiro, da Silva Viana, Ronaldo, Vendruscolo, Eduardo Pradi, de Lima, Sebastião Ferreira
Format:	Journal Article
Language:	English
Published:	New Delhi Springer India 01-02-2023 Springer Springer Nature B.V
Subjects:	Adaptability Agriculture Biomedical and Life Sciences Crop management Drought Gas exchange Life Sciences Niacinamide Nicotinamide Photosynthesis Photosynthetic apparatus Pyrimidines Short Communication Stomata Stress Sugarcane Thiamine Vitamin B Vitamins Water deficit Nicotinamide Photosynthetic activity Regenerative agriculture Thiamine
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Summary:	Most of the areas cultivated with sugarcane around the world are subject to a period of water deficiency, reducing the productive potential of the crop. Management techniques that allow a greater resistance of plants concerning this stress can be an important tool for the better reestablishment of plants after the drought period. Thus, in the present study, the effects of exogenous application of thiamine and nicotinamide in sugarcane plants submitted to water deficit in the early stages of development were considered. The treatments tested were: T1 = control; T2 = 100 mg nicotinamide L −1 ; T3 = 100 mg thiamine L −1 ; T4 = 50 mg nicotinamide + 50 mg thiamine L −1 ; T5 = 100 mg nicotinamide + 100 mg thiamine L −1 , which were applied prior to the imposition of stress. After 90 days of cultivation, we found that treatments T3 and T4 provided better adaptability of plants to water deficit stress, improving the physiological conditions of gas exchange and stomatal functionality. Thus, we conclude that the isolated application of thiamine (100 mg L −1 ) and its combination with nicotinamide, in a concentration of 50 mg L −1 , can be beneficial to the photosynthetic apparatus and the stomatal morphology of sugarcane plants subjected to a period of water deficit.
ISSN:	0972-1525 0974-0740 0972-1525
DOI:	10.1007/s12355-022-01177-5