Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2019) [Effective from January 1, 2019]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(2): 2275-2283
DOI: https://doi.org/10.20546/ijcmas.2019.802.265


Screening of Tomato Genotypes for Various Yield and Quality Parameters under Regulated Deficit Irrigations in Northern Dry Zone of Karnataka
G. Prakash*, Muksh L. Chavan, R.C. Jagadeesha, J. Jayappa and K.S. Shankarappa
Kittur Rani Channamma College of Horticulture Arabhavi, Karnataka -591 218, India
*Corresponding author
Abstract:

Tomato is one of the most popular and widely grown vegetables in the world which ranks next to potato. Although tomato is generally grown under irrigated conditions, its cultivation as a rainfed crop has gained importance particularly in semi-arid regions. It has been established that stress due to water deficit is a very important limiting factor at the initial phase of plant growth and establishment. Studies on physiological evaluation of tomato genotypes is limiting in the drought stress condition. Hence, the present investigation was carried out to screen the tomato genotypes for various Number of fruits / plant, Average fruit weight, Equatorial diameter (mm), Polar diameter (mm), Pericarp thickness, Number of locules/fruit, Yield/plant Yield/ hectare, Carotenoid content, TSS, Ascorbic acid content, Lycopene content and yield potential by adopting simple field screenings with regulated two levels of irrigation at two different stages of plant growth to know the effect of drought on tomato genotypes. The experiment was laid out in a factorial randomized block design with thirteen genotypes and two replications. Water stress was imposed two weeks after the transplanting to all the genotypes in two stress conditions viz the IW/CPE ratio of 0.40, 1.20 and farmers practice as control. Furrow irrigation was given when the pan evaporation reading reached 41.66 mm (1.20 IW/CPE ratio) and 125 mm (0.40 IW/CPE ratio) using V notch. Under moisture stress condition of 1.2 IW/CPE ratio the genotype, Arka Meghali had significantly higher yield (1.65 kg plant-1 and 49.95 t ha-1) and under the sever moisture stress of 0.4 IW/CPE ratio higher yield was noticed in the genotype EC 631962 (1.37 kg plant-1 and 39.48 t ha-1) and least yield was noticed in the susceptible genotype EC 608269 (0.66 kg plant-1) at 0.4 IW/CPE ratio. Irrespective of the irrigation levels, EC 638519 had maximum number of fruits per plant. Genotypes EC 608362, EC 610652, EC 634394, EC 638519, EC 610661, EC 631962, Kashi Anupam and Pusa 120 performed better under drought conditions


Keywords: Tomato stress, Deficit irrigation, Morphological traits, Yield, IW/CPE ratio
Download this article as Download

How to cite this article:

Prakash, G., Muksh L. Chavan, R.C. Jagadeesha, J. Jayappa and Shankarappa, K.S. 2019. Screening of Tomato Genotypes for Various Yield and Quality Parameters under Regulated Deficit Irrigations in Northern Dry Zone of Karnataka.Int.J.Curr.Microbiol.App.Sci. 8(2): 2275-2283. doi: https://doi.org/10.20546/ijcmas.2019.802.265