الفهرس 
Material and methodsOnly 14 pages are availabe for public view
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Abstract
This investigation was carried out during the two
seasons 1978 and 1979, at the Experimental Station ~f
the Facul ty of Agricultural Science at lC,”oshtoh,oAr.R.E.
Three sets of experiments were included in each .seaacn ,
The first experiment concerned studying the effects of
mixing sulfur or lime with the soil of the field plots
before gladiolus corm or cormels planting. The second
pots
one was conducted in clay/filled with the previously
field treated sailor with natural untreated soil. The
soil in pots was either inoculated with F.oxysporum f.
gladioli or not. Whereas the third was concerned with
some Chemical changes during the dormancy of post-harvest
corms and cormels as affected by storage.
The following results were obtained:
1- Addition of sulfur powder at the rate of 600 gms per
1
plot (4000 /feddan) resulted in more survival plants
especially wben applied 2 months or 10 days before
planting. Also, sprouting was better and faster with
this treatment.
2- When lime was added at the rate of 400 gm,/plot it
decreased the number of plants than the control and
other treatments. A retarding effect on emergence
was also noticed specially when added 10 days before
planting.
3- Generally, it could be concluded that the addition
of either sulfur powder as 600 gm/plot 2 months ~
before planting or lime as , 400 gm/plot 10 days
before planting increased the vegetative growth of
gladiolus. however. the first treatment is recommended
for applying as it gave the best results as
regards the healthy survival plants.
4- The shortest period for the iirst flower opening was
noticed with lime treatment when added, either 4
months or ten days before planting and sulphur treatment
400 gm/plot, when added 4 months before planting.
5- As regards obtaining marketable showy flowers it may
be advicJu that lime (400 gm/plot) or sulphur (60J gm/
plot) CQult be added two months before planting. Same
trend of results could be noticed as regards c’Jrm
pre du~t;.QO.
6- Lime significantlY resultea in heavier corms, followed
by sulfur at the rate of 600 or 200 gm/plot
four mouths and ten days before planting. Also corms
were more flatted with lime as well as the 200/gm sulfur
added 2 months before planting.
7- Sulfur added two months before planting at the rate
of 600 gm/plot produced the highest number of cormels.
On the other hand the least number was noticed with
lime especially when added 4 months belare planting.
8- Sulfur application was more effective with certain
varieties as Jackson ViII Gold and Tee Tedaha.
9- The cultivars under investigation differed in their
response to the uptake of the nutrients. Nt P, K and
Oa were increased in the different plant organs as
affected by sulfur appli~ation.
10- It could be recommended to use healthy cured corm
parts take:.)rr-om rotted corms especially from. those
cultivars ot highly ma.rketing characteristics and
planting them in soil treated ’hith either 400 gm or
600 gm sulfur added 5 months before planting.
11- Vitavax was the best fungicide for obtaining the
best healthy survivals of all tested varieties and
also corm parts.
12- At 5°C. the pretreatment with lime increased dormancy
stage by a week when compared with both the control
and sulfur treatments. Whereas with 15 days storage
at 25°0 both sulfur ana lime decreased the period of
dormancy by about 2 and 1 week respectively. However,
the most noticeable effect was regarded with the corms
i.~rodLlceudnder 600 gms sulfu.i.w:hen stored at 25°0 for
30 days.
13- Higher cGutent of reduced sugars was coincided with
the critical dates of sprouting,
14- On economic basis the addition of sulfur at the rate
of 600 gmt two months before plantin5 could be considered
the best treatment for giving more healthy survival
plants, corm and cormels production and five
days earlL~ess in givinG flowers as well as shorting
the dormancy period.