Volume 2, Number 2 (6-2013)                   DEEJ 2013, 2(2): 9-14 | Back to browse issues page

XML Persian Abstract Print


Sentence determine the stability mechanisms to stress in Agropyron trichophorum at test
with four different levels of osmotic potentials resulted from PEG 6000 including 0, -3, -6
and -9 executed in factorial and accidental manner with four interactions in hydroponic
environment. Three genotypes of Agropyron trichophorum pasture types were used Arak
(3755), Semirom (3.13), and Faridan (4007) and four drought care (-3, -6 and -9 times
distilled water). In this essay the sprouting percentage root length, shoot length, seedling
length, root to shoot rate, seedling dry weight, seedling fresh weight, dry to fresh weight rate
sprouting rate and seed health index were determined. The results showed that with
increasing the drought stress, the root to shoot rate, seedling dry weight and dry to fresh
weight rate factors increased and other attributes were reduced significantly. The best levels
to assess the stability to drought were the -6 and -9 load potentials in all drought levels. In
general, in tested genotypes, Arak (3755) genotype showed a better sprouting in under study
potentials and had a meaningful preference to other genotypes. From assessed parameters,
seedling length and seed index standard showed the most possible reaction to changing
potential of water.

Type of Study: Research | Subject: Desert
Received: 2012/11/25 | Accepted: 2013/05/27 | Published: 2013/06/20

Add your comments about this article : Your username or email:
Write the security code in the box

Send email to the article author

© 2015 All Rights Reserved | Desert Ecosystems Engineering Journal

Designed & Developed by : Yektaweb