Growth responses of Parthenium hysterophorus L. growing under salt stress

Khurshid, Saba, Nasim, Ghazala, Bajwa, Rukhsana and Adkins, Steve (2012) Growth responses of Parthenium hysterophorus L. growing under salt stress. Pakistan Journal of Weed Science Research, 18 1: 51-64.

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Author Khurshid, Saba
Nasim, Ghazala
Bajwa, Rukhsana
Adkins, Steve
Title Growth responses of Parthenium hysterophorus L. growing under salt stress
Formatted title
Growth responses of Parthenium hysterophorus L. growing under salt stress
Journal name Pakistan Journal of Weed Science Research
ISSN 1815-1094
Publication date 2012-03-25
Sub-type Article (original research)
Volume 18
Issue 1
Start page 51
End page 64
Total pages 14
Place of publication Peshawar, Pakistan
Publisher Weed Science Society of Pakistan
Collection year 2013
Language eng
Formatted abstract
The present study conducted during 2009-10 prescribed the
potential of varyingly devised osmotic constrains on germination and
growth as well as mycorrhizal association of Parthenium hysterophorus,
an alien and highly invasive weed species. The effects of differential
salinity concentrations of three selected salts viz. NaCl, KCl, and MgSO4
were evaluated on germination and growth of P. hysterophorus in lab as
well as field trials at Institute of Agricultural Sciences, University of the
Punjab, Lahore. The different concentrations of test salts for lab
experiments were 10, 20, 30, 40 mM, and for field experiments were
500, 750, 1000, 1250 mM. The control treatment with simple water
irrigation was marked as 0 (zero). The parthenium plants were allowed
to grow in silty loam textured soils in pots. Twenty five days old
seedlings were allowed to establish in the pots. Saline sprays with test
salts were carried out one week after transplantation. In the results,
different salts had different mechanisms of affecting the plants. Average
decline of 86% was observed in germination of parthenium against
maximum concentrations. In both of the lab and field experiments, shoot
and root fresh weights were severely affected in comparison to the dry
weights. Mycorrhizal colonization was higher in the control treatments
against all the saline conditions. Significant decline in chlorophyll content
was evidenced in case of KCl. The salinity threshold of P. hysterophorus
was estimated up to 0.75 M, growth was strongly decreased and growth
was significantly reduced at higher salinity regimes.
Keyword Alien
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2013 Collection
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Created: Sun, 14 Apr 2013, 20:29:27 EST by Professor Steve Adkins on behalf of Qld Alliance for Agriculture and Food Innovation