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1.
Braz J Biol ; 84: e276886, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37991061

RESUMO

This research was conducted during the two experimental seasons 2021/2022 and 2022/2023 to explore the effect of salicylic acid (SA) concentrations at 0.75.150 and 300 ppm, fertilization of poultry manure (PM) on rats 0, 5, 10/ and 20 m3/ha as well as their interactions on growth, yield and volatile oil components of Coriander (Coriandrum sativum L.). It resulted in a significant increase in plant growth traits in terms of plant height, number of branches, fresh and dry weed weight, number of threads, and seed yield per plant and hectare, when plants were treated with fine particles at a high concentration (300 ppm). While the highest values for volatile oil production were when spraying at a concentration of 200 parts per million, it was also proven that poultry manure at all levels was more effective in increasing the previously studied traits. All tested variables were significantly affected by the interaction coefficients. In this respect, most of the combination therapies significantly increased all aspects examined. Moreover, foliar application at 300 ppm SA plus high level (20 m3/ha) was the most effective treatment for growth and yield characteristics while oil production was better at 200 ppm concentration with the same level of poultry manure. GC-MS analysis of the volatile oil indicated that poultry manure and foliar applications with salicylic acid concentrations also affected the major constituents. The combination of SA at 200 and 300 ppm plus PM at the higher level (20 m3/ha) resulted in increased percentages of major components compared to the untreated plants and the other treatments.


Assuntos
Coriandrum , Óleos Voláteis , Animais , Ratos , Óleos Voláteis/farmacologia , Esterco , Ácido Salicílico/farmacologia , Aves Domésticas , Plantas
2.
Braz J Biol ; 83: e272957, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37610946

RESUMO

This study was conducted during the seasons 2020/2021 and 2021/2022 to investigate the effect of the interaction between compost and biostimulants on growth measurements, seed yield, and oil production of black cumin (Nigella sativa L.). Four levels of fertilizer (0.6, 12, 18 tons/ha) were used. While the biostimulants were ascorbic acid (AS) at 100 ppm, yeast extract (YE) at 8 g/L, and AS at 100 ppm + 8 g/L YE. The plants were treated with these stimuli as follows: control (without addition), 100 ppm, YE at 8 g/L, and the results showed that fertilization at all levels, as well as foliar spraying with the used stimuli, led to a significant increase. Growth parameters, number of capsules, seed production, as well as fixed and volatile oil production, and plant treatment with organic fertilizers at a high level (18 tons). /ha) recorded the highest values for the trait under study. It was also shown that the foliar treatment at a concentration of 8 g/l YE was more effective in increasing the previously studied variables. All interactions were great. Most of the composite coefficients increased significantly for all the traits studied. Moreover, the application of manure at a high rate (18 t/ha) at a rate of 8 g/l YE was the best treatment. GC-MS analysis of the volatile and persistent oil showed that the main constituents of both species were also affected by the use of organic fertilizers and biotreatments. The combination of high-rate fertilizer (18 t/ha) plus AS at 100 ppm + 8 g/L YE improved main oil components compared to untreated plants.


Assuntos
Compostagem , Nigella sativa , Fertilizantes , Sementes , Ácido Ascórbico
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