YIELD, QUALITY AND PLANT NUTRIENT CONTENTS OF LETTUCE UNDER DIFFERENT DEFICIT IRRIGATION CONDITIONS


Demir H., Kaman H., Sönmez İ., Mohamoud S. S., Polat E., Üçok Z.

Acta Scientiarum Polonorum-Hortorum Cultus, vol.21, no.1, pp.115-129, 2022 (SCI-Expanded) identifier

Abstract

This research was carried out in two separate periods (spring and autumn) in 2018 to reveal the lettuce
response of yield, some quality, and plant nutrient content under different water stress conditions. In the
study, the effects of different irrigation levels applied with traditional deficit irrigation (TI) and partial root-
zone drying (PRD) techniques on lettuce growing were investigated. Lettuce (
Lactuca sativ
a var.
crispa
cv.
‘Campania’) was uThis research was carried out in two separate periods (spring and autumn) in 2018 to reveal the lettuce
response of yield, some quality, and plant nutrient content under different water stress conditions. In the
study, the effects of different irrigation levels applied with traditional deficit irrigation (TI) and partial root-
zone drying (PRD) techniques on lettuce growing were investigated. Lettuce (
Lactuca sativ
a var.
crispa
cv.
‘Campania’) was used as plant material. There were traditional farmers’ method of irrigation (TF), 125%
traditional irrigation (TI-125), 100% traditional irrigation (TI-100), 75% traditional irrigation (TI-75), 50%
traditional irrigation (TI-50), 125% partial root-zone drying technique (PRD-125), 100% partial root-zone
drying technique (PRD-100), 75% partial root-zone drying technique (PRD-75), 50% partial root-zone dry
-
ing (PRD-50) technique treatments. According to the results of the research, it was determined that different
water stress applications were effective on the criteria examined in lettuce. The highest total and marketable
yield values were obtained from the TF application, the second-highest values from the TI-125 application,
and the lowest yield from the PRD-50 in the autumn period. In the spring season, the lowest yield was ob
-
tained from TI-50 and PRD-50 applications. Based on the treatments, the yield values were decreased and
changes were experienced with the increase of the water stress in other examined criteria.sed as plant material. There were traditional farmers’ method of irrigation (TF), 125%
traditional irrigation (TI-125), 100% traditional irrigation (TI-100), 75% traditional irrigation (TI-75), 50%
traditional irrigation (TI-50), 125% partial root-zone drying technique (PRD-125), 100% partial root-zone
drying technique (PRD-100), 75% partial root-zone drying technique (PRD-75), 50% partial root-zone dry
-
ing (PRD-50) technique treatments. According to the results of the research, it was determined that different
water stress applications were effective on the criteria examined in lettuce. The highest total and marketable
yield values were obtained from the TF application, the second-highest values from the TI-125 application,
and the lowest yield from the PRD-50 in the autumn period. In the spring season, the lowest yield was ob
-
tained from TI-50 and PRD-50 applications. Based on the treatments, the yield values were decreased and
changes were experienced with the increase of the water stress in other examined criteria.