scholarly journals Allelopathic potential of peatland plant species on germination and early seedling growth of Scots pine, silver birch and downy birch.

Silva Fennica ◽  
1992 ◽  
Vol 26 (2) ◽  
Author(s):  
Jyrki Hytönen
Keyword(s):  
Plant Species ◽  
Scots Pine ◽  
Seedling Growth ◽  
Silver Birch ◽  
Allelopathic Potential ◽  
Early Seedling Growth ◽  
Early Seedling ◽  
Downy Birch

Seed germination and early seedling growth of six wetland plant species in saline-alkaline environment

2020 ◽  
Vol 22 (11) ◽  
pp. 1185-1194
Author(s):  
Xinyi Wang ◽  
Rui Cheng ◽  
Hui Zhu ◽  
Xianwei Cheng ◽  
Brian Shutes ◽  
...  
Keyword(s):  
Seed Germination ◽  
Plant Species ◽  
Seedling Growth ◽  
Wetland Plant ◽  
Alkaline Environment ◽  
Early Seedling Growth ◽  
Early Seedling

scholarly journals Germination and Early Seedling Growth of Two Rice Varieties as Affected by Invasive Ageratina adenophora

2020 ◽  
Vol 8 (2) ◽  
pp. 108-117
Author(s):  
Kavita Khatri ◽  
Kiran Bargali ◽  
Bhawana Negi ◽  
S.S. Bargali
Keyword(s):  
Seedling Growth ◽  
Plant Extracts ◽  
Leaf Extract ◽  
Seed Vigor ◽  
Root Extract ◽  
Rice Varieties ◽  
Allelopathic Potential ◽  
Early Seedling Growth ◽  
Ageratina Adenophora ◽  
Early Seedling

Ageratina adenophora is a perennial herb of family Asteraceae expanding as a serious threat to ecological integrity and biodiversity. This study aims to assess the allelopathic potential of fresh and dry leaf and root aqueous extracts of this invasive species on germination, early seedling growth, seedling biomass and seed vigor of two rice (Oryza sativa L.) varieties namely 6444 and 2245. The result revealed that with increasing concentration of extract, inhibition effect also increases. Leaf extract was more inhibitory than root extract and dry plant extracts had higher allelopathic impact in comparison to fresh plant extracts. Among the two investigated rice varieties 6444 was more resistant to the fresh and dry leaf extract while 2245 was more resistant to fresh and dry root extract. This study will be helpful in assessing the effect caused by A. adenophora to rice crop and could be used in devising weed control strategy.

scholarly journals Potassium Nitrate Treatment Is Associated with Modulation of Seed Water Uptake, Antioxidative Metabolism and Phytohormone Levels of Pea Seedlings

Seeds ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 5-15
Author(s):  
José A. Hernández ◽  
Pedro Díaz-Vivancos ◽  
José Ramón Acosta-Motos ◽  
Gregorio Barba-Espín
Keyword(s):  
Plant Species ◽  
Water Uptake ◽  
Seedling Growth ◽  
Seed Treatment ◽  
Potassium Nitrate ◽  
Antioxidant Defences ◽  
Early Seedling Growth ◽  
Pea Seedlings ◽  
Early Seedling ◽  
Gas Ratio

(1) Background: Seed treatment with potassium nitrate (KNO3) has been associated with dormancy breaking, improved germination and enhanced seedling growth and uniformity in a variety of plant species. However, the KNO3 effect seems to be dependent on plant species and treatment conditions. (2) Methods: We describe the effect of incubation of dry pea seeds with different KNO3 concentration on water uptake kinetic, early seedling growth, antioxidant metabolism and hormone profile in pea seedlings. (3) Results: Low (0.25 mM) KNO3 levels increased seedling water uptake and growth, whereas high (40 mM) levels decreased seedling growth. KNO3 treatment differentially affected the antioxidant defences. Low KNO3 levels maintained the activity of antioxidant enzymes, while high levels reduced the activity of H2O2-scavenging enzymes. KNO3 induced a progressive decline in ascorbate levels and reduced (GSH) and oxidised (GSSG) glutathione. Low KNO3 levels strongly increased GA1 and decreased ABA in both seedlings and cotyledons, resulting in a decline in the ABA/GAs ratio. (4) Conclusions: Pea seed treatment with a low KNO3 level promoted early seedling growth. In this process, an interaction among KNO3, antioxidant defences and ABA/GAs ratio is proposed.

Effects of salinity on seedling emergence and early seedling growth of Irvingia gabonensis (Irvingiaceae)

2017 ◽  
Vol 45 (2) ◽  
pp. 282-295
Author(s):  
R. Vihotogbé ◽  
C. Watson ◽  
R. Glèlè Kakaï ◽  
F. Wichern ◽  
B. Sinsin ◽  
...  
Keyword(s):  
Seedling Growth ◽  
Seedling Emergence ◽  
Early Seedling Growth ◽  
Early Seedling ◽  
Irvingia Gabonensis
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