Effect of salinity stress on germination and heterotrophic growth of wild okra (Corchorus olitorius L.) seeds
Journal Title: Journal of Research in Ecology - Year 2016, Vol 4, Issue 1
Abstract
An experiment was laid out in order to evaluate the effect of salinity stress on seed germination, seedling growth and heterotrophic growth of wild okra at the laboratory of horticulture, Faculty of Gorgan Agricultural and Natural Resources University, Iran, March 2015. In this experiment treatments were different salinity stress levels of NaCl (0, -2, -4, -6, -8 and -10 bar). 25 seeds of each lot evenly placed on Whatman filter paper No.1 in sterilized 9-cm petri dishes separately and 10 ml of Nacl solution at different concentration were added . Seed germination parameters, seedling growth and heterotrophic growth components were determined. The results showed that, the effect of salinity stress was significant on germination percentage, germination rate, hypocotyl and radicle dry weight, seedling length, seed vigor index, seed reserves utilization, conversion efficiency of mobilized seed reserve and ratio of utilized seed reserve. Mean comparison data showed that maximum germination percentage, germination rate, radicle dry weight, seedling length, seed vigor index and seed reserves utilization were recorded for -2 bar water potential and the lowest of them was recorded for the -10 bar water potential (severe salinity stress) for all traits. Maximum hypocotyl dry weight were recorded at -2 bar saline stress treatment. Moreover, maximum conversion efficiency of mobilized seed reserve and ratio of utilized seed reserve was founded at -8 bar saline stress treatment and minimum of them was recorded for -10 bar water potential. The results of the study showed that increasing of saline stress in wild okra decreased seed germination parameters, seedling growth and heterotrophic growth components
Authors and Affiliations
Madeh Ahmadi, Sahar Zamani, Hadi Salehpoor, Zahra Rahmati Motlagh
Keywords
Related Articles
- EP ID EP253088
- DOI -
- Views 171
- Downloads 0
Antibacterial potential of the symbiont red algae Eucheuma cottonii originated from Banten Bay Waters, Indonesia
Symbiotic bacteria are microorganisms that host plants with mutualistic symbiosis enabling them to produce compounds, especially antibacterial compounds. This research aimed to isolate and select symbiont producing antib...
Effect of pre-sowing treatment and nitrogen on the weed properties in maize fields
In order to evaluat the effect of pre-sowing treatment and nitrogen rates on weed’s dynamic population, a field experiment was carried out in a split plot based on Randomized Complete Block Design with four replications...
Effect of Eucalyptus extract against E. coli O104:H4 in the minced meat of trout
One of the most important bacteria which is transmitted through the use of marine products, is E. coli O104:H4 bacteria. The main reason for this contamination is the poor maintenance of water at unhealthy conditions....
Effect of vitamin C and natural antioxidants on the production performance and antioxidant status of laying hens through heat
An experiment was carried out to investigate the effect of using ascorbic acid (vitamin C) and Dried Tomato Pomace (DTP) as natural antioxidants on the production performance and antioxidant status of laying hens through...
Effect of Trichoderma harzianum, on chemical composition and in vitro digestibility of crop residues
Effect of Trichoderma harzianum treatment on the chemical composition of crop residues and in vitro digestibility of dry matter and organic matter at two different concentration of Trichoderma harzianum (1g/L and 2g/L) a...