Changes in Java grass (Cymbopogon winterianus) physiology, essential oil production, and active constituents as influenced by catechol and some plant growth regulators applied through steaming technique.

Afreen, Resalat; Khan, M. Masroor A.; Quasar, Naushin

doi:10.1016/j.indcrop.2023.116853

Cited by 1 publication

(5 citation statements)

References 32 publications

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“…This is similar to the finding of Shah et al. (2018) and Afreen et al. (2023) , it was because that chlorocholine chloride and humic acid regulator can affect active constituent content by regulating the related enzymes and expression of enzyme genes involved in the synthesis of active constituents.…”

Section: Discussionsupporting

confidence: 87%

“…In this study, chlorocholine chloride led to a significant decrease in the yields of various active constituents in C. pilosula compared with CK, while humic acid regulator increased them. This is similar to the finding of Shah et al (2018) and Afreen et al (2023), it was because that chlorocholine chloride and humic acid regulator can affect active constituent content by regulating the related enzymes and expression of enzyme genes involved in the synthesis of active constituents.…”

Section: Chlorocholine Chloride Reduced the Yield Of Active Constitue...supporting

confidence: 87%

“…This study found that due to the different compositions of chlorocholine chloride and humic acid regulators, they may increase the yield of C. pilosula in different ways. Chlorocholine chloride may increase the yield by increasing photosynthetic rate and nitrate reductase activity ( Huang et al., 2018 ; Afreen et al., 2023 ), while humic acid regulator may increase the yield by stimulating root activity, promoting nutrient uptake by root system and increasing activity of sucrose phosphate synthase ( Haghighi et al., 2012 ; Ali et al., 2022 ).…”

Section: Discussionmentioning

confidence: 99%

“…regulators, they may increase the yield of C. pilosula in different ways. Chlorocholine chloride may increase the yield by increasing photosynthetic rate and nitrate reductase activity (Huang et al, 2018;Afreen et al, 2023), while humic acid regulator may increase the yield by stimulating root activity, promoting nutrient uptake by root system and increasing activity of sucrose phosphate synthase (Haghighi et al, 2012;Ali et al, 2022). Chlorophyll function is an intermediate carrier of photosynthesis and its content is a significant indicator of photosynthetic rate and leaf senescence (Biswal et al, 2012;Taiz et al, 2014).…”

Section: Humic Acid Regulatormentioning

confidence: 99%

“…PGRs have been widely used in agriculture, forestry, horticulture and other fields ( Giannakoula et al., 2012 ; Huang et al., 2021 ; Katel et al., 2022 ). Researches have found that PGRs can increase yield by affecting a series of physiological and biochemical parameters such as chlorophyll content, photosynthesis and enzyme activity during the growth and development of medicinal plants ( Afreen et al., 2023 ). In addition, PGRs can also increase contents of active constituents by regulating the activity of metabolic enzymes and gene expression during the secondary metabolism in medicinal plants ( Jamwal et al., 2018 ).…”

Section: Introductionmentioning

confidence: 99%

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Spraying humic acid regulator on cultivated Codonopsis pilosula (Franch.) Nannf. to improve yield of active constituents

Huang,

Miao,

Chen

et al. 2024

Front. Plant Sci.

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Plant growth regulators have been used in the cultivation of medicinal plants to increase yield, but the existing regulators decreased the content of active constituents which benefit human health. Therefore, it is necessary to find a new growth regulator to achieve the win-win goal of increasing yield and improving active constituents’ accumulation. The potential of replacing chlorocholine chloride with a new humic acid-based growth regulator was evaluated by measuring the yield and active constituents’ accumulation of Codonopsis pilosula. Three treatments including water (CK), chlorocholine chloride (T1) and humic acid regulator (T2) were applied by foliar spraying. Among them, both chlorocholine chloride and humic acid regulator belong to biostimulant. The result showed that the root yield in T1 and T2 were significantly increased by 59.1% and 54.9% compared with CK, respectively, and there was no significant difference between T1 and T2. Compared with CK, the yields of lobetyolin, syringin and atractylenolide III of Codonopsis pilosula were significantly decreased by 6.3%, 7.3% and 13.0% in T1, but were significantly increased by 22.8%, 14.8% and 32.0% in T2, respectively. Redundancy analyses showed that photosynthetic rate, sucrose phosphoric acid synthetase and phosphomannomutase had higher degree of explanation for yield and quality. Linear regression results indicated that photosynthetic rate and phosphomannomutase were the main factors to affect yield and active constituents yields, respectively. In addition, the output-input ratios based on the yields of polysaccharides, lobetyolin, syringin and atractylenolide III of Codonopsis pilosula in T2 was significantly increased by 6.5%, 15.2%, 8.7% and 31.2% respectively as compared with T1. Overall, compared with water treatment, both chlorocholine chloride and humic acid regulator treatments can increase the root yield of Codonopsis pilosula. Compared with chlorocholine chloride, humic acid regulator can improve the yield of active constituents and economic benefits of Codonopsis pilosula. This study indicated that reasonable selection of plant growth regulators is of great significance for achieving a win-win goal of increasing the root yield and active constituents of medicinal plants.

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Section: Discussionsupporting

confidence: 87%

Section: Chlorocholine Chloride Reduced the Yield Of Active Constitue...supporting

confidence: 87%