· Fruit Yield :
Tomato :
· Soaking of seed in NOA at 25-50 mg/l,
GA at 5-20 mg/l and CIPA at 10-20 mg/l, 2, 4-D,0.5 mg/l or thiourea at 10-1
M have been reported to improve fruit yield in tomato.
Brinja l:
Ø Soaking if seedlings roots in NAA at
0.2 mg/l and ascorbic acid at 250 mg/l has been reported to produce higher
fruit yield
Chillies
and Peppers : Foliar sprays of GA at 50 mg/l at fruit setting or planofix (NAA
10 mg/l) double sprays ( at flowering and 5 week later) decreased flower
shedding and gave better fruit yield in
chillies
Ø Application of fumar and Epin in seed
production of potato increased average daily tuber weight gain, accelrated
tuber formation on average by 20 days, easier sprouting, bud formation period
and flowering as well as a high member
of tubers per plant (kravchenko, 2007).
Ø Application of ethephon 200ppm foliar
spray increased pisttilate flowers and fruits and seeds per plants (siteram etd
1989).
Ø Roots of the carrot cultivar chantnay
Red coled stored at 5o c for 30 days and soaked in aqueons solutions
of IBA 40ppm and IAA at 80ppm gave highest seed yield ( Farghals & Hussein
, 1994).
Ø Soaking of onion mother bulbs for 16h
in in GA3 (50 or 100 ppm) and
potassium thiosulphat (1000 or 2000 ppm) hastened the intension of flower emergence.
Ø List of pl.growth-regulators and
their important uses in vegetable crops:
Gggggggr.R
|
Conc.
(mg/l)
|
Method
of Application
|
Crops
|
Attributes
affected
|
CCC
|
250-500
|
Foliar
Spray
|
Cucurbits,
tomato,okra
|
Flowering
sexexpression,
fruit
yield
|
PCPA
|
50
|
Foliar
Spray
|
tomato
|
Fruit
set & yield
|
CEPA
(Ethephon)
|
100-500
|
Foliar Spray
|
Cucurbits okra, tomato
|
Flowering, fruit sex expression &
yield
|
2000
|
Post harvest
|
Tomato,
Chillies
|
Fruit ripening
|
|
GA
|
10
|
Foliar spray
|
Water melon, tomato
|
Sex expression, fruity, yield
|
IAA
|
10-15
|
Foliar spray
|
Okra, tomato,Brinjal
|
Seed germination, fruit set, yield
|
NAA
|
0.2
|
Seedling
roots
|
Tomato,
brinjal, onion
|
Growth
and yield
|
10-20
|
Foliar
spray
|
Chillies
& tomato
|
Fl.drop
& Fr.ref & yield
|
|
25-30
|
Seed/foliar
|
Okra,
tomato, brinjal, onion cucurbits
|
Seed
germination, growth and yield
|
|
NOA
|
25-100
|
Seed/foliar
|
Okra,
tomato,
|
Seed
germination, growth and yield
|
Silver
nitrats
|
500
|
Foliar
spray
|
Cucumber
|
Induction
of maleflowers in gynoelims lines
|
Silver
Thiosulphate
|
400
|
___
|
Musk
melon
|
Induction
of maleflowers in gynoelims lines
|
2,3,5_thiodo
benzric acid (TIBA)
|
25-50
|
Foliar
spray
|
cucumbits
|
Flowering,
sex expression, yield
|
Tria
contanol
|
2
|
Foliar
spray
|
Chillies
& peas
|
Fruit
set & yield
|
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