Spacing between plants and cultivar affect the production componentes of Italian zucchini

Grangeiro, Leílson Costa; Cordeiro, Carlos J. X.; Sousa, Valdívia de Fátima Lima de; Santos, Jandeilson Pereira dos; Souza, Francisco Irael de; Ferreira, Nubia Marisa

doi:10.1590/1807-1929/agriambi.v24n5p332-336

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…Zucchini (Cucurbita pepo L.) is one of the most consumed vegetables, among the most socioeconomically important for Brazil, being traditionally cultivated by small producers (GRANGEIRO et al, 2020). It is a vegetable with high nutritional quality, standing out as a source of Ca, P, Fe, and fibers (OLIVEIRA et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Gas Exchange and Hydroponic Production of Zucchini Under Salt Stress and H2o2 Application

et al. 2022

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Knowledge about the effect of chemical conditioners on the reduction of the deleterious effects caused by salinity on crops is of great importance for the expansion of the cultivation of vegetable crops such as zucchini in the semi-arid region of the Northeast. In this context, the objective of the present study was to evaluate the effect of the foliar application of hydrogen peroxide as a mitigator of salt stress on the gas exchange, production, and postharvest fruit quality of zucchini cultivated in a hydroponic system. The study was conducted in NFT-type (Nutrient Film Technique) hydroponic system in a greenhouse, in Pombal — PB, Brazil. The experimental design was completely randomized, in a 4 × 4 factorial scheme, corresponding to four levels of electrical conductivity of the nutrient solution - ECns (2.1 (control); 3.6; 5.1 and 6.6 dS m−1), and four concentrations of hydrogen peroxide - H2O2 (0; 20; 40 and 60 μM), with three replicates. Nutrient solution with electrical conductivity above 2.1 dS m−1 caused a reduction in gas exchange and the total number of fruits of zucchini. An increase in nutrient solution salinity levels increased the total soluble solids content of the fruits and the initial fluorescence of zucchini. Under conditions of nutrient solution salinity above 2.1 dS m−1, hydrogen peroxide could not mitigate the effects of salt stress. Application of 20 μM of H2O2 when the plants were grown in a nutrient solution of 2.1 dS m−1 promoted higher total fruit weight and basal diameter of the fruits.

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Section: Introductionmentioning

confidence: 99%

Gas Exchange and Hydroponic Production of Zucchini Under Salt Stress and H2o2 Application

et al. 2022

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“…Its fruits are marketed immature with light green, dark green, or yellow color, depending on the cultivar. Due to its nutritional and organoleptic characteristics, the consumption of zucchini has a growing demand, accompanied by the requirement to improve the fruit quality [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Electrical Conductivity and Nitrogen:Potassium Ratios from Nutrigation in the Quality of Zucchini Fruits

Pacheco

Duarte

Charles

et al. 2023

Braz. arch. biol. technol.

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The demands of high-quality zucchini fruits by the consumer market make studies regarding the improvement of cultivation systems, such as plant nutrition and salinity tolerance. Considering the demands of the consumer market for the high quality of zucchini fruits, it is necessary studies regarding the improvement of production systems for this improvement, such as nutrition and salinity tolerance to plant. Thus, this study aimed to evaluate the zucchini fruits quality characteristics, grown in soilless, under N:K ratios, and levels of electrical conductivity of the nutrient solution. The experiment was conducted in a protected environment in pots with 8.2 dm³ of volumetric capacity filled with commercial substrate. The trial design adopted was randomized blocks, with three replicates, in a 5x3 factorial scheme, with five levels of electrical conductivity (1.0; 2.0; 3.0; 4.0; and 5.0 dS m -1 ) and three N:K ratios (2:1; 1:1; and 1:2), both in the nutrient solution. The application of the nutrient solution was by fertigation through drip irrigation. Throughout the experiment, variables related to fruit quality and total plant biomass production were analyzed. The HIGHLIGHTS• Electrical conductivity (EC) and N:K ratios modify zucchini fruit size.• Organoleptic characteristics of zucchini fruits increase with EC.• Total dry mass production of plants showed interaction between N:K ratio and EC.

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Zucchini cultivation under salt stress and exogenous application of paclobutrazol

Lacerda,

Laurentino,

Bonou

et al. 2024

Rev. Caatinga

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Salinity is considered an obstacle to the production system that limits the growth and yield of crops around the world. Therefore, it is essential to develop strategies to minimize the effects of salinity and increase yield, especially in the semi-arid region of the Northeast, which has limited water resources of good quality for irrigation. The objective was to evaluate the effects of applying paclobutrazol on zucchini crop under salt stress. The experiment was conducted in a greenhouse, in a randomized block experimental design, in a 2 × 5 factorial scheme, with two salinity levels of irrigation water (0.6 and 4.0 dS m-1) and five concentrations of paclobutrazol - PBZ (0; 2; 4; 6 and 8 g L-1), and with four repetitions. Application of 8 mg L-1 PBZ increases stem diameter in zucchini under irrigation of 4.0 dS m-1. Chlorophyll b and total chlorophyll contents increase with PBZ concentration of 4 mg L-1 and irrigation of 0.6 dS m-1. PBZ concentration of 4 mg L-1 increases the relative water content while reducing electrolyte leakage in zucchini under salinities of 4.0 and 0.6 dS m-1 respectively. Root, stem and leaf dry mass of zucchini increases when plants are irrigated with water of 0.6 dS m-1 and subjected to PBZ concentration of 8 mg L-1. PBZ concentrations do not attenuate the effects of salinity on leaf area, crown volume and diameter, vegetative vigor index, chlorophyll a and carotenoids.

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Spacing between plants and cultivar affect the production componentes of Italian zucchini

Cited by 3 publications

References 15 publications

Gas Exchange and Hydroponic Production of Zucchini Under Salt Stress and H2o2 Application

Gas Exchange and Hydroponic Production of Zucchini Under Salt Stress and H2o2 Application

Electrical Conductivity and Nitrogen:Potassium Ratios from Nutrigation in the Quality of Zucchini Fruits

Zucchini cultivation under salt stress and exogenous application of paclobutrazol

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