Combining Ability Analysis in Double Cross Hybrids of Tomato (solanumlycopersicuml.) (Record no. 71100)

MARC details
000 -LEADER
fixed length control field 02521nam a22002057a 4500
003 - CONTROL NUMBER IDENTIFIER
control field OSt
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250703162920.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 250703b |||||||| |||| 00| 0 eng d
040 ## - CATALOGING SOURCE
Transcribing agency University of Agricultural Sciences, Dharwad
041 ## - LANGUAGE CODE
Language code English
082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 635
Author Label KIL
100 ## - MAIN ENTRY--PERSONAL NAME
Name of Author Killiindu
245 ## - TITLE STATEMENT
Title Combining Ability Analysis in Double Cross Hybrids of Tomato (solanumlycopersicuml.)
250 ## - EDITION STATEMENT
Edition Statement M Sc (Agri)
260 ## - PUBLICATION, DISTRIBUTION, ETC.
Place of Publisher Dharwad
Name of Publisher University of Agricultural Sciences, Dharwad
Publication Year 2025
300 ## - PHYSICAL DESCRIPTION
Book Pages 91
Book Size 32 Cms
520 ## - SUMMARY, ETC.
Abstract. Tomato (Solanum lycopersicum L.) is a vegetable crop that belongs to the Solanaceae family is appreciated for both fresh consumption and processing. A research is conducted to explore the combining ability and heterosis in double-cross F1 hybrids of tomato to meet the growing demand for high-yielding and high-quality tomato varieties. Employing a full-diallel mating scheme with seven single-cross F1 hybrids, the study focused on evaluating heterosis, combining ability, and identifying superior hybrid combinations for enhanced yield and quality traits.Significant genetic variability across the traits studied, with certain hybrid combinations demonstrating notable heterotic effects were found. The best-performing double-cross hybrid, ‘NTH 3072 × Darsh’, achieved impressive yields of 3.45 kg/plant. It showed highest positive significance for mid, better and commercial heterosis for yield per plant.Combining ability analysis showed a dominant influence of both additive and non- additivegeneticeffects,withtraitssuchasplant height,numberofprimarybranches,andfruit width exhibiting significant general combining ability (GCA) variance. The combination of genotypes rather than the direction of the cross is the primary factor influencing the trait expression. ‘Darsh’ showed the highest positive GCA effect for yield per plant whereas ‘Darsh × Utsav’exhibited the highest positive SCA effect.Yield per plant demonstrated a significant positive correlation with the fruit weight, fruit length, fruit width and number of fruits per plant. The yield was positively influenced directly by fruit weight and number of fruits per plant at both phenotypic and genotypiclevels.Remarkably, 44.00 per cent of the plants displayed transgressive segregants for yield per plant, and the ‘NTH 3072 × Darsh’cross had 80.00 per cent of its segregants exhibiting superior traits.
700 ## - ADDED ENTRY--PERSONAL NAME
2nd Author, 3rd Author Patil R V
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha Item type THESIS
Edition M Sc (Agri)
Classification part 635
Call number prefix KIL
Suppress in OPAC No
942 ## - ADDED ENTRY ELEMENTS (KOHA)
-- 635_000000000000000
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-- 71100
-- 71100
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Home library Current library Date acquired Total checkouts Full call number Barcode Date last seen Copy number Price effective from Koha item type
    Dewey Decimal Classification     University of Agricultural Sciences, Dharwad University of Agricultural Sciences, Dharwad 18/06/2025   635/KIL T14163 03/07/2025 1 03/07/2025 THESIS