scholarly journals Effect of seed priming on seed vigor and early seedling growth in maize under optimal and suboptimal temperature conditions

2016 ◽  
Vol 22 (1) ◽  
pp. 17-25 ◽  
Author(s):  
Petar Canak ◽  
Milan Mirosavljevic ◽  
Mihajlo Ciric ◽  
Jelena Keselj ◽  
Bojana Vujosevic ◽  
...  
2014 ◽  
Vol 66 (1) ◽  
pp. 99-108 ◽  
Author(s):  
Morteza Saberi ◽  
Farajollah Tamian

Abstract The objective of this study was to evaluate the effectiveness of seed priming in improving seed germination and seedling vigor of Vicia villosa under laboratory conditions. Chemical stimulators included: gibberel-lic acid (125,250 and 500 ppm), salicylic acid (100,200 and 300 mg/lit) and extract of Eucalyptus camaldulen-sis (0, 25, 50, 75 and 100 %). This experiment was carried out as factorial experiment based on a randomized completely design, with four replications. The results showed that Eucalyptus camaldulensis extract had in-hibitive effect on germination and early seedling growth of Vicia villosa. Early seedling growth of Vicia villosa increased by pretreatment of seeds in chemical stimulators so that the highest effect was observed in gibberellic acid (250 ppm). The chemical stimulators don’t have any effect on germination speed. Interaction effects of allelopathic and pretreatment with chemical stimulators were significance on germination percentage, root, shoot and plant length and seed vigor index.


2019 ◽  
Vol 9 (11) ◽  
pp. 2203 ◽  
Author(s):  
Muhammad Ali ◽  
Sikandar Hayat ◽  
Husain Ahmad ◽  
Muhammad Imran Ghani ◽  
Bakht Amin ◽  
...  

The current study was aimed to evaluate the seed priming potential of AGE (aqueous garlic extracts) to enhance seed germination and early seedling growth of eggplant. Different concentrations (100, 200, and 300 µg mL−1) of AGE were evaluated along with methyl jasmonate (MeJA) and salicylic acid (SA), plant growth regulators with reported seed priming potential whereas, water was taken as a control treatment. Eggplant seeds were primed for 4-, 8-, and 12-h and seed germination traits such germination rate index, germination percentage, mean germination time, and early seedling growth traits such as fresh and dry weights, root, and shoot lengths were observed. Moreover, plant antioxidant enzymes activities and lipid peroxidation levels, soluble protein contents and reactive oxygen species were monitored to establish the stimulatory/inhibitory effects of the treatments. Our results indicate priming potential of AGE, SA, and MeJA to enhance seed germination and early seedling growth in eggplant and the effects were obvious in various morphological and physiological traits. Seed priming significantly altered the antioxidant enzymes activities such as superoxide dismutase (SOD), and peroxidase (POD) with alteration in the reactive oxygen species (ROS). Interestingly, priming duration also affected the bioactivity of these chemicals because seed priming with 300 µg mL−1 AGE for 4 h had a positive influence, however, prolonged exposure to the same concentration inhibited the seed germination process and induced oxidative stress on the seedlings with elevated levels of malondialdehyde (MDA) content. We propose AGE seed priming as a bio-stimulant to enhance seed germination and early seedling growth in eggplant, and the results hence lay the foundation for the preparation of garlic-based compounds to improve vegetables production under plastic tunnels and greenhouse production units.


Agronomy ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 566
Author(s):  
Shyama Prashad Chakma ◽  
Stephen Mushimwa Chileshe ◽  
Richard Thomas ◽  
Priti Krishna

Cotton (Gossypium hirsutum) is the largest fibre crop globally and an important oilseed crop. Rising temperatures and declining water supplies, which are also impacting soil salinity, threaten cotton plant productivity. Germination, emergence and young seedling stages in cotton are highly sensitive to salinity and heat stresses. Brassinosteroids (BRs) are plant steroid hormones that are essential for proper plant growth and development and also promote tolerance to a range of environmental stresses. Cotton seeds were primed with BR (24-epibrassinolide) alone or in combination with other hormones (abscisic acid, auxin and gibberellic acid) and tested for germination and early seedling growth. BR promoted germination under no stress as well as under salinity and heat stress conditions, while other hormones were ineffective under stress conditions. BR also promoted cotyledon opening and the development of lateral roots in germinated seedlings. The ability of BR to positively impact seedling growth across different stress conditions suggests that priming cotton seeds with BR may help in early and successful establishment of seedlings, which may benefit the plant through its lifecycle.


2014 ◽  
Vol 29 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Irena Golubinova ◽  
Anna Ilieva

In order to study the allelopathic effect of aboveground dry biomass of Sorghum halepense, Convolvulus arvensis and Cirsium arvense on seed germination and early seedling growth of Pisum sativum (L.), varieties Mir (winter form) and Kerpo (spring form); Vicia sativa (L.), variety Tempo, and Medicago sativa (L.), variety Dara, a laboratory experiment was conducted at the Institute of Forage Crops - Pleven. Four concentrations: 1.25, 2.5, 5.0 and 10.0% were applied to each weed biotype used to study allelopathic effects. The results showed that weed extracts significantly decreased germination percentage, shoot and root length (cm), shoot and root weight (g), and seed vigor index (SVI1 and SVI2) of the tested species. In general, the variable effects are related to the weed species and extract concentrations.


2012 ◽  
Vol 35 (6) ◽  
pp. 805-816 ◽  
Author(s):  
Hamidullah Shah ◽  
Tabinda Jalwat ◽  
Muhammad Arif ◽  
Ghazal Miraj

Heliyon ◽  
2020 ◽  
Vol 6 (8) ◽  
pp. e04766
Author(s):  
Adornis D. Nciizah ◽  
Mokgatla C. Rapetsoa ◽  
Isaiah IC. Wakindiki ◽  
Mussie G. Zerizghy

2011 ◽  
Vol 33 (5) ◽  
pp. 1707-1713 ◽  
Author(s):  
Muhammad Farooq ◽  
Tariq Aziz ◽  
Hafeez ur Rehman ◽  
Atique ur Rehman ◽  
Sardar Alam Cheema ◽  
...  

2020 ◽  
Vol 42 ◽  
Author(s):  
Yutcelia Carolina Galviz-Fajardo ◽  
Gabriel Streck Bortolin ◽  
Sidnei Deuner ◽  
Luciano do Amarante ◽  
Fernanda Reolon ◽  
...  

Abstract: Seed priming with salicylic acid (SA) has been described as a method with potential to improve seed germination under unfavorable conditions. The present study aimed to evaluate the ability of seed priming with SA to attenuate the impact of water restriction during germination and early seedling growth of tomato. Seeds were subjected to different concentrations of SA (0, 25 and 50 µM) and sowed on substrates at different percentages of the water holding capacity (20, 30, 40 and 100%). The following variables were evaluated: germination, first count of germination, germination speed index, shoots/root length and dry mass, superoxide dismutase, ascorbate peroxidase and catalase activities, contents of hydrogen peroxide and of malondialdehyde. Water restriction significantly decreased the variables related to germination and seedling performance. Despite increasing germination speed and seedling development when combined with well-irrigated conditions, priming with SA negatively impacted those characteristics under water deficit conditions. That was through increases in superoxide dismutase activity and H2O2 accumulation. Thus, it was concluded that seed priming with SA does not improve tomato seed germination and early seedling growth under water deficit.


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