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Enhancement of zinnia seed germination and seedling emergence through magnetic seed stimulation

100%

Afzal I., Abbasi K. Y., Iqbal A., Younis A., Bakhtavar A., Rehman H. U.

Acta Scientiarum Polonorum. Hortorum Cultus

2016

tom 15

nr 5

Poor seed germination is a main hindrance to the commercial cultivation of Zinnia (Zinnia elegans Jacq.). Seed enhancement is a useful strategy to improve germination of major agronomic and horticultural crops. A lab study was conducted to investigate the potential of magnetic seed stimulation as a seed enhancement tool and its influence on germination and emergence capacity of zinnia. Magnetic seed treatment with 50, 100 and 150 mT strength each for 5, 10 and 15 min was compared with control (untreated). Magnetic seed stimulation reduced time to 50% germination and mean germination time and increased final germination percentage, germination energy and germination index. Root length, shoot length, seedling fresh and dry weight was also increased as a result of magnetic seed stimulation. Furthermore, magnetic field treatment also enhanced α-amylase activity, total soluble sugars and reducing sugars levels. Among all seed treatments, magnetic field with strength of 100 mT for 15 min was the most effective physical treatment for improving seed germination and seedling growth of zinnia.

Inducing salt tolerance in french marigold (Tagetes patula) through seed priming

100%

Afzal I., Rahim A., Qasim M., Younis A., Nawaz A., Bakhtavar M. A.

Acta Scientiarum Polonorum. Hortorum Cultus

2017

tom 16

nr 3

The present study investigates the potential of seed priming for induction of salt tolerance in French marigold at early growth stage. Treatments were combination of priming techniques viz. hydropriming, halopriming (50 mM CaCl2), hormonal priming with salicylic acid (100 ppm) and ascorbate priming (100 ppm) each for 24 h. Primed seeds were exposed to salinity levels (0; 50 and 100 mM NaCl) during germination and emergence assays. All priming treatments hastened germination and emergence attributes under saline or non-saline conditions as compared to those of non-primed (control) seeds. Seeds of French marigold primed with ascorbate followed by CaCl2, salicylic acid and hydropriming enhanced final germination, speed of germination, root and shoot length and dry mass of French marigold seedlings. This was interpreted by minimized mean emergence time and time to 50% emergence. Additionally, it was also observed that all priming agents particularly calcium salt and ascorbate maintained ionic homeostasis in salt stressed seedlings. It is concluded that CaCl2, ascorbate and salicylic acid were the most effective priming agents to ameliorate the adverse effects of salinity in French marigold due to lower uptake of Na+ and higher uptake of K+ in the seedlings.

Improved cut flower and corm production by exogenous moringa leaf extract application on gladiolus cultivars

84%

Younis A., Akhtar M. S., Riaz A., Zulfiqar F., Qasim M., Farooq A., Tariq U., Ahsan M., Bhatti Z. M.

Acta Scientiarum Polonorum. Hortorum Cultus

2018

tom 17

nr 4

Bio-stimulants are in excessive demand for the sustainable production of floriculture crops. The current investigation was designed to find out the effect of naturally occurring growth stimulant moringa leaf extract (MLE) on the growth, flowering, post-harvest life and corm production of two gladiolus cultivars (cvs.) ‘Rose Supreme’ and ‘White Prosperity’. The research trial was laid out in the factorial arrangement under randomized complete block design. Corms were grown in the open field under local climatic conditions of Faisalabad, Pakistan. Potential of exogenously applied (MLE; 30 times diluted) was evaluated. Treatments including spraying MLE at 3 leaves, 5 leaves, floral bud stage, one combination of these three stages relative to control with no foliar application. Application of natural bio-stimulant produced maximum height in both cvs. against T4. Both cvs. gave maximum stalk length in response to T4. The number of florets spike–1 found the maximum (13) in T1 compared to control T0 which yield (9) florets. Maximum vase life in sucrose solution (13.33 days) was exhibited by T1 for both cvs. while minimum (10 days) in T0. In cultivar comparison earlier spike emergence was observed in ‘White Prosperity’. In ‘Rose Supreme’ maximum corm weight was attained in response to T3 (43.43 g) while minimum (30.33 g) in T0.‘White Prosperity’ produced maximum weight (40.33 g) against T4 whereas minimum by control. The cultivar mean comparison showed the superiority of cormel diameter in ‘Rose Supreme’ (10.93 mm) than ‘White Prosperity’ (9.13 mm). In treatment comparison, T4 produced maximum diameter (12.04 mm) in ‘Rose Supreme’ moreover, T2 induced maximum (9.57 mm) diameter in ‘White Prosperity’.

Ograniczanie wyników

3 Acta Scientiarum Polonorum. Hortorum Cultus

3 Younis A.

2 Afzal I.

2 Qasim M.

1 Abbasi K. Y.

1 Ahsan M.

1 Akhtar M. S.

1 Bakhtavar A.

1 Bakhtavar M. A.

1 Bhatti Z. M.

1 Farooq A.

1 Iqbal A.

1 Nawaz A.

1 Rahim A.

1 Rehman H. U.

1 Riaz A.

1 Tariq U.

1 Zulfiqar F.

1 2018

1 2017

1 2016

Wyniki wyszukiwania

Enhancement of zinnia seed germination and seedling emergence through magnetic seed stimulation

Inducing salt tolerance in french marigold (Tagetes patula) through seed priming

Improved cut flower and corm production by exogenous moringa leaf extract application on gladiolus cultivars