Record Details

Gas exchange, chlorophyll fluorescence, biomass production, water use and yield response of tomato (Solanum lycopersicum) grown under deficit irrigation and varying nitrogen levels

Indian Agricultural Research Journals

View Archive Info
 
 
Field Value
 
Title Gas exchange, chlorophyll fluorescence, biomass production, water use and yield response of tomato (Solanum lycopersicum) grown under deficit irrigation and varying nitrogen levels
 
Creator BAHADUR, ANANT
LAMA, T D
CHAURASIA, S N S
 
Subject Deficit irrigation, Gas exchange, N level, Tomato, Water use efficiency
 
Description A field experiment on irrigation schedulings and nitrogen rates was conducted to study the physiological, growth and yield responses of tomato (Solanum lycopersicum L.) under deficit irrigation and various N levels. Results obtained indicated that irrigation at 10 or 20 days (I1 and I2) interval had significantly higher gas exchange (photosynthesis rate, stomatal conductance and transpiration rate), photochemical efficiency of PS II (Fv/ Fm), RWC, leaf area, chlorophyll content and fruit production over 30 days irrigation interval (I3). Nitrogen application had also significant effects on most of the physiological, growth and yield traits at 45 and 75 DAT, however N at 120 kg/ha had noticed maximum gas exchange, Fv/Fm, leaf area, CCI and fruit production over other two N levels. Interaction of I × N had exhibited significant effect on few parameters such as; photosynthesis rate, stomatal conductance, leaf area and weed growth, particularly at 45 DAT. Biomass production and partitioning in various plant parts were varied significantly, and under moderate water deficit with higher N levels (I2 N1 and I2 N2), an optimum allocation of biomass (less in roots and stems and higher in fruits) was registered. The maximum WUE (14.19 q/ha/cm) was reported with irrigation scheduling at 20 days, besides 36% water savings over I1. For realisation of higher WUE, tomato should be irrigated at 20 days intervals with N application at 120 kg/ha.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-02-13
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/46506
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 2 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/46506/20079
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences