Effect of Marine Algae Extracts on Seed Germination of some Plants

Document Type : Research Article

Authors

Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt

10.21608/mjb.2020.460716

Abstract

This study focuses on evaluating the impact of marine algae extracts prepared from three Egyptian seaweeds on seed germination of Vigna sinensis, Pisum sativum and Zea mays. Seeds of the three plants were primed with seaweed liquid extracts (SLEs) of Ulva fasciata (ULE), Cystoseira compressa (CLE) and Laurancia obtusa (LLE) in 2.0% extract strength. LLE induced the maximum positive magnitude of response in the following five germination parameters: germination percentage (GP), relative seed germination (RSG), germination index (GI), seedling vigor index (SVI) and relative root elongation (RRE). LLE produced the maximum increases in all seedling morphological parameters with percent of promoting response 87.3% for hypocotyl growth of V. sinensis, 80% epicotyl growth for P. sativum and 86.96% coleoptile elongation of Z. mays. Concerning germination metabolism, the maximum amylase activity was recorded to LLE priming (80.36, 59.11 and 61.44 mg soluble sugars min-1 g-1 FW) for germinating seeds of V. sinensis, P. sativum and Z. mays, respectively. The same pattern of response was documented with protease activity giving 89.59, 90.42 and 98.84 µg amino acids min-1g-1 FW for germinating seeds of V. sinensis, P. sativum and Z. mays, respectively. This study demonstrates the effectiveness of seaweed liquid extracts (ULE, CLE and LLE) in functioning as plant biostimulant enhancing seed germination of V. sinensis, P. sativum and Z. mays.

Keywords

Mansoura Journal of Biology
Volume 48, Issue 3
September 2020
Pages 32-38

Files

Share

How to cite

Statistics