116 – 129
EFFECT OF VITAMIN B1 AND WATER SALINITY ON SEED GERMINATION AND PLANT GROWTH OF SWEAT PEA Lathyrus odoratus L. AT BASRAH GOVERNORATE.
Authors: Azhar Mahdi Al-Abbasi
Number of views: 582
ABSTRACT
An experiment was conducted in a private nursery during 1/10/2011 -
30/3/2012 to study the effect of three concentrations of vitamin B1 (0, 10 and 20
mg.l
-1
) and four kinds of irrigation water salinity 0.928 (Tap water), 3.5, 7 and
10.5 ppt on germination and plant growth of Sweet Pea at Basrah governorate.
Data were tabulated on germination percentage, germination date, plant
length, root system length, dry vegetative system and root system dry matter,
total soluble carbohydrates content in vegetative system and root system, ,
protein content in vegetative system and root system, and ratio of root system
dry weight to vegetative system dry weight in a factorial experiment designed
with CRD in three replications.
Results showed a significant increase in all tabulated growth indicators as
the concentration of vitamin B1 increased except germination date for it
accelerated germination process and the concentration 20 mg.l
-1
of B1 gave a
significant difference than the other two ones ; on the other hand all parameters
were decreased significantly whenever irrigation water salinity was higher
except germination date for it prolonged germination period.
The interactions between the two factors was found significant in some of
germination and growth parameters.
Key words: Lathyrus odoratus , vitamin B1 , irrigation water salinity, vegetative growth.
Diyala Agricultural Sciences Journal, 6 (2) 116 – 129 ,2014
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