Phytohormones on the germination and initial growth of pumpkin seedlings under different types of water

Guirra, Keylan Silva; Torres, Salvador Barros; Leite, Moadir de Sousa; Guirra, Bruno Silva; Nogueira-Neto, Francisco Assis; Rêgo, Anna L. B.

doi:10.1590/1807-1929/agriambi.v24n12p827-833

Cited by 7 publications

(7 citation statements)

References 23 publications

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“…Total amino acids and proline act directly in the osmotic adjustment process, mainly under salinity conditions. Thus, there was an increase in the accumulation of total amino acids and proline in pumpkin seedlings (Guirra et al, 2020), under conditions similar to those of the present study. Thus, it is evident that the quality of irrigation water influences the production and vegetative development of seedlings, determining the agricultural activity.…”

Section: Degreessupporting

confidence: 89%

“…Possibly, it was due to the organic load present in this type of water from fish waste, in addition to the contents of Ca 2+ and Mg 2+ , important elements for plant nutrition (Souza et al, 2019). Results similar to those of this study have been verified in watermelon (Silva et al, 2015) and pumpkin (Guirra et al, 2020), using biosaline water from fish farming with approximately 5.0 dS m -1 .…”

Section: Degreessupporting

confidence: 84%

“…The results of seedling length show that melon is more sensitive to water salinity than other cucurbits. In pumpkin and watermelon, even with electrical conductivity levels similar to those of this study (approximately 5.0 dS m -1 ), shoot length was not hampered, and results were similar to those of seedlings irrigated with supply water (0.5 dS m -1 ) (Silva et al, 2015;Guirra et al, 2020).…”

Section: Degreessupporting

confidence: 82%

“…These results confirm the attenuating action of these regulators under salt stress for this study. Pumpkin root length, regardless of the use of plant regulators, was higher under salinity conditions, highlighting that this species performs morphological changes for survival in saline medium (Guirra et al, 2020). For melon, this morphological adaptation was observed in the present study, induced by the gibberellic acid when the crop was irrigated with the dilution of the waters (Figure 3D).…”

Section: Degreessupporting

confidence: 68%

“…However, the use of plant regulators such as gibberellin and salicylic acid in seed treatment can attenuate the negative effects of this stress because of their positive action on plant metabolism (Anaya et al, 2018;Ribeiro et al, 2020). Beneficial effects promoted by these regulators have been verified in the treatment of onion and pumpkin seeds under salinity conditions (Silva et al, 2019;Guirra et al, 2020).…”

Section: Pre-germination Treatments Of Melon Seeds For the Production...mentioning

confidence: 99%

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Pre-germination treatments of melon seeds for the production of seedlings irrigated with biosaline water

et al. 2024

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Melon production in the Brazilian semi-arid region is subject to the use of marginal waters with high salinity. However, the use of regulators and bioactivators in seed treatment can mitigate the harmful effects of salts in irrigation water. In this context, the objective was to evaluate the effect of pre-germination treatments with plant regulators and bioactivator in melon seeds for the production of seedlings irrigated with biosaline water from fish farming effluent. For this, two trials with the Goldex and Grand Prix hybrids were carried out separately. A completely randomized design was used in a 4 × 3 factorial scheme (pre-germination treatments × water dilutions). In addition to the control, the seeds were treated with salicylic and gibberellic acids and thiamethoxam. The waters used for irrigation were local-supply water, fish farming effluent (biosaline water) and these diluted to 50%. Physiological and biochemical analyses were performed for fourteen days. Biosaline water (5.0 dS m-1) did not affect the emergence of Goldex melon seedlings, but compromised the establishment of the Grand Prix cultivar. Seed pre-treatments with salicylic and gibberellic acids attenuate the effects of water salinity and promote growth modulations, resulting in more vigorous melon seedlings.

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Section: Degreessupporting

confidence: 89%

Section: Degreessupporting

confidence: 84%

Section: Degreessupporting

confidence: 82%

Section: Degreessupporting

confidence: 68%

Section: Pre-germination Treatments Of Melon Seeds For the Production...mentioning

confidence: 99%

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Pre-germination treatments of melon seeds for the production of seedlings irrigated with biosaline water

et al. 2024

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Uso De Fitoreguladores E Fitoprotetores Na Produção De Mudas De Melancia (Citrullus Lanatus) Em Água Biosalina.

Silva,

Guirra,

GUIRRA

et al. 2023

Preprint

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The use of phytoregulators and phytoprotectants in seed treatment may promote greater tolerance to saline stress. Thus, our objective was to evaluate the effects of seed treatment with phytoregulators and phytoprotectants on the emergence, establishment, development, and quality of watermelon cultivar Crimson Sweet seedlings in biosaline water (BW). The study design was completely randomized, with a 2 × 7 factorial scheme, the first factor consisting of two types of water (drinking water and biosaline water), and the second factor comprising three phytoregulators (salicylic acid, putrescina and gibberellic acid), three phytoprotectors (naphthalic anhydride, thiamethoxam and acibenzolar-S-methyl), in addition to the control treatment. The seedlings were evaluated at 14 days after sowing. Fresh vegetable material was collected to determine the levels of sugars and proteins in the tissues. The salinity of the water affected the development of watermelon seedlings, but it was observed that some evaluated products allow a reduction of the damages caused by the stress. Seedlings were more vigorous when treated with thiamethoxam, even when submitted to biosaline water, compared to control in normal water. Thus, seed treatment with thiamethoxam provides a higher quality of watermelon cultivar Crimson Sweet seedlings in biosaline water.

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Maternal Environment and Priming Agents Effect Germination and Seedling Quality in Pitaya under Salt Stress

Kenanoğlu,

Mertoğlu,

Sülüşoğlu Durul

et al. 2023

Horticulturae

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Lack of water and salinity are common problems in many parts of the world. Therefore, some types of cacti can present as promising crops. Therefore, the ability of cactus species to survive and adapt under natural stress conditions should be evaluated. The experiment was aimed at evaluating the effect of salt stress on germination and emergence of pitaya seeds obtained from different species (Hyloceresu undatus (Haw.) Britton and Rose and Hylocereus polyrhizus (Lem.) Britton and Rose), priming with plant growth regulators, namely salicylic acid (SA), oxalic acid (OA) and mepiquat chloride (MC). The experiment had a completely randomized design with a 2 × 4 × 3 factorial scheme corresponding to two pitaya cultivars (white- and red-fleshed), four NaCl concentrations (0, 2500, 5000 and 10,000 ppm), and three PGRs (150 ppm/MC, SA, OC). According to the results, the maternal environment of the seed was important in salt stress resistance, while seeds matured in the environment with red fruit flesh were more tolerant to salt stress. Although Pitaya species are relatively salt-tolerant, growth (about 30%) was significantly reduced above 2500 ppm and germination (about 45%) above 5000 ppm. Germination percentage stood out as the most important trait determining seed quality and had positive effects on the germination stress tolerance index (r: 0.63), seedling length (r: 0.74) and fresh seedling weight (r: 0.56). This is the first study of how maternal environment affects germination and seedling quality under saline conditions in Hylocereus. The results obtained may contribute to pitaya cultivation and breeding.

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Phytohormones on the germination and initial growth of pumpkin seedlings under different types of water

Cited by 7 publications

References 23 publications

Pre-germination treatments of melon seeds for the production of seedlings irrigated with biosaline water

Pre-germination treatments of melon seeds for the production of seedlings irrigated with biosaline water

Uso De Fitoreguladores E Fitoprotetores Na Produção De Mudas De Melancia (Citrullus Lanatus) Em Água Biosalina.

Maternal Environment and Priming Agents Effect Germination and Seedling Quality in Pitaya under Salt Stress

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