Growth of ornamental sunflowers in two growing seasons under semiarid conditions

Silva, Sheila Daniella Pereira da; Beckmann-Cavalcante, Márkilla Zunete; Chaves, Agnaldo Rodrigues de Melo

doi:10.9755/ejfa.2018.v30.i5.1681

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…Plant height and flower diameter were significantly greater in the sunflowers sowed on February 11, and although this species has ample climate adaptability (Balalić et al, 2012), the hybrid was affected by temperature (Baghdadi et al, 2014) in the first sowing. This coincides with that reported by Da Silva et al (2018) in six cultivars of ornamental sunflower sown in the warm season; they showed an increase of 20.3%, 26.1%, 16.8%, and 18.6% in plant height, stalk diameter, number of leaves, and diameter of internal inflorescence, respectively, compared to the winter sowing (Table 1).…”

Section: Resultssupporting

confidence: 91%

Production and Commercialization of Helianthus annuus L. for Cut Flowers in Texcoco, Mexico

García-Reyes¹,

Silvano-Sánchez²,

Zavala-Ruiz³

et al. 2021

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Objective: To evaluate the process of sunflower production (Helianthus annuus L.) for fresh cutting flowers, considering two sowing dates, growing degree-days, and commercialization. Design/Methodology/Approach: A completely randomized experimental design with subsampling was used, with five repetitions per treatment (sowing date), in order to analyze the variables: number of leaves, height, and flower diameter. Vincent Choice Dark Eye Ball™ sunflowers were sown in black plastic boxes with 8 cm of soil on January 31 and February 11, 2020, at 153 plants per m-2 in a greenhouse. Later, the seedlings were grown in the open field until harvesting, after which they were given added value and then locally traded. In addition, the growing degree-days (GDD) were calculated. Results: The sunflowers registered a height of 55 cm, 13 leaves per stalk, and a flower diameter of 6.88 cm. Late sowing favored the height and diameter of the flower. The sunflower hybrid required more GDD to reach commercial flower maturity in the first sowing date. The cost-benefit ratio was 1.38. Study Limitations/Implications: Seeds were sown on only two dates. Findings/Conclusions: The production process involved planning, management, and commercialization. The sunflower hybrid required on average 499 GDD to reach the cutting point. The added value increased the price fivefold.

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Section: Resultssupporting

confidence: 91%

Production and Commercialization of Helianthus annuus L. for Cut Flowers in Texcoco, Mexico

García-Reyes¹,

Silvano-Sánchez²,

Zavala-Ruiz³

et al. 2021

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“…Additionally, it is easy for propagation, management, and photosynthetic efficiency are high. Generally, the sunflower is among the most global crops and highly proper to different environments, (Da Silva et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Efficiency Evaluation of Pulsing Solutions and Cold Storage on Prolonging the Vase Life of Helianthus annuus L. Cut Flowers

Ezz¹,

Weheda²,

Gaber³

et al. 2021

Journal of the Advances in Agricultural Researches

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Preserve the vase life is an important factor for the evaluation of cut flowers quality, for both domestic and export markets. This study aimed to check the effect of cold storage durations (0, 1 and 2 weeks) and various combinations of pulsing solutions T1(tap water) as a control, T2 (Hydroxyquinoline sulfate (8-HQS) 200 mg/L +Sucrose 2%),T3 (Olive leaf extract 10 ml/L +Sucrose 2%), T4 (Lupine extract 10 ml/L +Sucrose 2%), T5 (Olive leaf extract 10 ml/L+ Coriander oil 300 ppm+25mg/L Kinetin +Sucrose 2%) , T6 (Olive leaf extract 10 ml/L + Dill oil 300 ppm+25mg/L Kinetin +Sucrose 2%), T7 (Lupine extract 10 ml/L+ Coriander oil 300 ppm +25mg/L Kinetin +Sucrose 2%), T8 (Lupine extract 10 ml/L + Dill oil 300 ppm +25mg/L Kinetin +Sucrose 2%), T9 (Salicylic acid 200 mg/L+ 25 mg/L Kinetin +Sucrose 2%), T10 (Citric acid 150 mg/L +25 mg/L Kinetin +Sucrose 2%) on quality parameters of Helianthus annuus L. cultivar "Sunbright Supreme". A significant decrease in chlorophyll index, water balance, carotenoids content and vase life was obtained by increasing the cold storage duration compared to control. The maximum vase life was recorded by pulsing solutions T5 (10.18 and 11.11days) in both experiments, further T8 and T3 (10.44 and 10.30 respectively) in the second experiment.

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Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

Silva

Souza

Chaves

et al. 2022

Rev. bras. eng. agríc. ambient.

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Knowledge of how climatic conditions affect plant morphophysiology is essential for understanding how to manage the growth cycles of different crops. The aim of this study was to evaluate the effects of the growing seasons in a semi-arid area on the morphophysiological variables of ornamental sunflower plants. The experiment was carried out in a randomized block design in a split-plot arrangement with four replicates. Six cultivars (‘Bonito de Outono Sortido’, ‘Sol Noturno’, ‘Sol Vermelho’, ‘Jardim Amarelo Alto’, ‘Girassol F1 Sunbright Supreme’ and ‘Girassol F1 Vincents Choice’) were evaluated in the main plots and two different growing seasons (GS) in the subplots (GS1 - warm climate and GS2 - mild climate). Evaluations of gas exchange, chlorophyll indices, and leaf surface area were carried out at the reproductive stage (R5.5). The cultivation of ornamental sunflowers in semi-arid regions was significantly affected by the growing season. Changes in gas exchange variables and the morphophysiology of ornamental sunflower plants in the two growing seasons reflected the high phenotypic plasticity characteristic of this species. The cultivation of ornamental sunflowers under semi-arid conditions in the growing season, when air temperature and solar radiation are high, could be limited due to elevated transpiration rates. Therefore, it is recommended that they are grown mainly during the moderate climatic season in semi-arid regions.

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Growth of ornamental sunflowers in two growing seasons under semiarid conditions

Cited by 3 publications

References 23 publications

Production and Commercialization of Helianthus annuus L. for Cut Flowers in Texcoco, Mexico

Production and Commercialization of Helianthus annuus L. for Cut Flowers in Texcoco, Mexico

Efficiency Evaluation of Pulsing Solutions and Cold Storage on Prolonging the Vase Life of Helianthus annuus L. Cut Flowers

Morphophysiological aspects of ornamental sunflowers cultivated in different growing seasons under semi-arid conditions

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