Silicon attenuates calcium deficiency in rocket plants by increasing the production of non-enzymatic antioxidants compounds

Alves

et al. 2023

Sci Rep

Self Cite

Adopting a Si supply strategy can amplify the sugarcane response. Thus, this study aimed to verify whether Si supply in the pre-sprouted seedling (PSS) formation phase would have an effect after field transplanting similar to Si supply only in the field phase (via foliar spraying or fertigation). Furthermore, this study aimed to verify whether Si supply in the PSS formation phase associated with Si fertigation after transplanting can potentiate or amplify Si benefits. Two experiments were conducted. In experiment I, pre-sprouted seedlings were grown in a nursery without Si (Control) and with Si. Experiment II was conducted in the field on Eutrustox soil with the following treatments: no Si supply (Control); Si supplied during the PSS formation phase; Si supplied through foliar spraying in the field; Si supplied through fertigation in the field; Si supplied in the PSS formation phase and during field development. Silicon used in both crop phases benefited sugarcane by increasing photosynthetic pigment content and the antioxidative defense system. The innovation of Si management to be supplied via fertigation integrated with both crop phases (PSS and in the field) optimizes the element’s use by increasing the crop's productivity and sustainability.

Section: Discussionsupporting

confidence: 91%

New strategy for silicon supply through fertigation in sugarcane integrating the pre-sprouted seedling phase and field cultivation

Silva

Alves

et al. 2023

Sci Rep

Self Cite

“…This study's results reinforce that Si may have favored sugarcane even under unstressed conditions, a fact also reported by other authors, not in the crop itself but in the early growth stage 40 , and in other species [41][42][43] . Therefore, although there are many more studies evaluating the Si bene ts in stressed plants, it is possible that this also occurs in unstressed plants 7 .…”

Section: Discussionsupporting

confidence: 91%

New strategy for silicon supply through fertigation in sugarcane integrating the pre-sprouted seedling phase and field cultivation

Silva

Alves

et al. 2022

Preprint

Adopting a Si supply strategy can amplify sugarcane response. Thus, this study aimed to verify whether Si supply in the pre-sprouted seedling (PSS) formation phase would have an effect after field transplanting similar to Si supply only in the field phase (via foliar spraying or fertigation), and whether Si supply in the PSS formation phase associated with Si fertigation after transplanting can potentiate or amplify Si benefits. Two experiments were conducted. In experiment I, PSS were grown in nursery without Si (Control) and with Si. Experiment II was conducted in the field on Eutrustox with the following treatments: no Si supply (Control); Si supplied during the PSS formation phase; Si supplied through foliar spraying in the field; Si supplied through fertigation in the field; and Si supplied in the PSS formation phase and during field development. Silicon use in both crop phases benefited sugarcane by increasing photosynthetic pigment content and the antioxidative defense system. The innovation of Si management to be supplied via fertigation integrated in both crop phases (PSS and in the field) optimizes the element use by increasing the crop's productivity and sustainability.

“…This beneficial effect of silicon on plants was evidenced by its accumulation in the shoots of Ca-deficient plants, which increased the production of phenolic compounds. Other authors have also reported this effect for ryegrass 47 , barley 7 , and rocket plants 21 . The increase in phenols possibly occurred because Si structurally improves cell wall components, in which Ca is involved.…”

Section: Discussionmentioning

confidence: 70%

“…Silicon addition increased Ca use efficiency and shoot dry matter production. Other studies have already demonstrated the positive effects of Si on the attenuation of Ca deficiency in rocket 21 , cabbage 20 , and P. maximum plants 28 , as well as in the hybrid Ipyporã ( B. ruziziensis × B. brizantha ) 28 . However, this is the first evidence that it also occurs in the forages U. brizantha cv.…”

Section: Discussionmentioning

confidence: 88%

“…Studies addressing abiotic stresses refer to damage by salinity 13 and water conditions 11 , 14 , 15 . Regarding nutritional disorders, studies have focused on the benefit of Si in relieving nitrogen (N) deficiency in rice 16 , potassium (K) deficiency in sorghum 17 and maize 18 , magnesium (Mg) deficiency in maize 19 , calcium (Ca) deficiency in cabbage 20 and rocket 21 , phosphorus (P) deficiency in sorghum 22 , wheat 23 , and cucumber 24 , 25 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Silicon mitigates nutritional stress of nitrogen, phosphorus, and calcium deficiency in two forages plants

Araújo

Teixeira

et al. 2022

Sci Rep

Forages are one of the most cultivated crops in the world. However, nutritional deficiency is common, specifically in N, P, and Ca in many forage-growing regions. Silicon (Si) can attenuate the stress caused by nutritional deficiency, but studies on Si supply’s effects on forage plants are still scarce. This research was carried out to evaluate whether the Si supply can mitigate the effects of N, P, and Ca deficiencies of two forages and the physiological and nutritional mechanisms involved. Two experiments were carried out with two forage species (Urochloa brizantha cv. Marandu and Megathyrsus maximum cv. Massai). We used nutrient solution under balanced nutrition conditions and nutritional stress due to the lack of N, P, and Ca combined with the −Si and +Si. The deficiencies of N, P, and Ca in both forages’ cultivation caused damage to physiological and nutritional variables, decreasing the plant dry matter. However, in both forage species, the Si addition to the nutrient solution decreased the extravasation of cellular electrolytes and increased the content of phenolic compounds, the green colour index, the quantum efficiency of photosystem II, the efficiencies of use of N, P and Ca and the production of shoot dry matter. The beneficial effects of Si were evidenced in stressed and non-stressed plants. The research emphasised the advantage of using Si to grow U. brizantha and M. maximum under N, P, and Ca deficiency, contributing to their sustainable cultivation.