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- Title
EVALUATION OF PROMISING TOMATO HYBRIDS HAVING RESISTANCE TO LATE BLIGHT AND ROOT KNOT NEMATODES IN DIVERSE AGROCLIMATIC ZONES OF PUNJAB.
- Authors
Jindal, S K; Garg, Naveen; Singh, Parvinder; Kaur, Sukhjeet; Jain, Sandeep
- Abstract
Six promising F1 hybrids of tomato developed using parental lines resistant to late blight (LB) and root knot nematodes (RKN) along with two check hybrids (TH-1 and Shivaji) were evaluated during 2016-17 at three diverse locations of Punjab, India. Four round fruited experimental hybrids viz. TH- 1014, TH-1214, TH-1514 and TH-2114 were resistant to LB and RKN when screened under artificial conditions, whereas, two hybrids viz. TH-925 and TH-1925 were moderately resistant to LB and moderately susceptible to RKN. The check hybrids viz., TH-1 and Shivaji were highly susceptible to LB and susceptible to RKN. The G x E interaction was non-significant for total yield, fruit weight and pericarp thickness. The pooled analysis revealed that the hybrid TH-1014 produced the maximum yield (72.8 t ha-1) that was at par with TH-1214 (67.2 t ha-1) and manifested 58.3% and 46.1% heterosis over TH-1 and 22.4% and 12.9% over Shivaji, respectively. In respect of fruit weight, hybrid TH-1014 exhibited non-significant heterosis whereas TH-1214 recorded 15.5% and 10.5% heterosis over TH-1 and Shivaji, respectively. Besides, TH-1214 manifested slightly better flavour attributes i.e. locule number and pericarp thickness than TH-1014 and was, therefore, considered superior to TH-1014.
- Subjects
PUNJAB; TOMATOES; NEMATODES; ROOT-knot nematodes; HETEROSIS; PHYTOPHTHORA infestans
- Publication
Agricultural Research Journal, 2021, Vol 58, Issue 5, p768
- ISSN
2395-1435
- Publication type
Article
- DOI
10.5958/2395-146X.2021.00109.5