EVALUATION OF TOMATO GENOTYPES FOR TOLERANCE TO SALINE WATER IRRIGATION
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Date
1992
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ANDHRA PRADESH AGRICULTURAL UNIVERSITY RAJENDRANAGAR, HYDERABAD
Abstract
A
1991-92
pot culture experiment was conducted during kharif
-1 on sandy soil with an ECe of 0.75 dsm , collected
from Agricultural College Farm Bapatla, to study the salt
tolerance of ten tomato genotypes viz., Arka Abha, Punjab
Chhuhara, Bapatla Local, Arka Ashish, Pusa Gaurav, Punjab
Kesari, Pusa Early Dwarf, Pusa Ruby and Sl-120. Five salin-
1 ity levels (2, 4, 6, 8, 10 dsm ) were developed in the
irrigation water besides control (0.66 dsm-1 ).
The experiment was conducted to study the effect of
water salinity on per cent seedling emergence, growth,
drymatter production, fruit size, fruit yield and nutrient
uptake with three replications in a randomized block design
with factorial concept A
1991-92
pot culture experiment was conducted during kharif
-1 on sandy soil with an ECe of 0.75 dsm , collected
from Agricultural College Farm Bapatla, to study the salt
tolerance of ten tomato genotypes viz., Arka Abha, Punjab
Chhuhara, Bapatla Local, Arka Ashish, Pusa Gaurav, Punjab
Kesari, Pusa Early Dwarf, Pusa Ruby and Sl-120. Five salin-
1 ity levels (2, 4, 6, 8, 10 dsm ) were developed in the
irrigation water besides control (0.66 dsm-1 ).
The experiment was conducted to study the effect of
water salinity on per cent seedling emergence, growth,
drymatter production, fruit size, fruit yield and nutrient
uptake with three replications in a randomized block design
with factorial concept. Increased levels of water salinity not only reduced the
per cent seedling emergence but also delayed the time of
emergence. Among varieties Arka Saurabh, Punjab Chhuhara
and Arka Abha recorded maximum seedling emergence while
minimum was recorded by Cvs Bapatla Local followed by Punjab
Kesari. Growth and drymatter production were significantly
reduced at all salinity levels cultivars Arka Saurabh,
Punjab Chhuhara and Arka Abha were superior in its growth
and drymatter production at all the stages even at higher
salinity. levels. Number of fruits per plant and yield per
plant decreased· significantly with increasing salinity in
irrigation water.
Cvs. Arka Saurabh, Punjab Chhuhara, Arka Abha recorded
higher fruit yield over others due to its maximum number of
fruits per plant. The above cultivars recorded less than
50 p~r cent reduction in yield at an EC iw of 8 ds/m. The
uptake of calcium, magnesium increased with increasing
levels of water sali~ity and the reverse was true in the
uptake of nitrogen, phosphorus, potassium and sulphur.
Cultivars Arka Saurabh, Punjab Chhuhara and Arka Abha
have recorded maximum nutrient uptake at both stages viz.,
peak flowering and final harvesting. It was concluded that
three cultivars Arka Saurabh, Punjab Chhuhara and Arka Abha
were more tolerant to the saline water irrigation than the
rest of the varieties tested.