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Breeding tomato (Solanum lycopersicum L.) for resistance to biotic and abiotic stresses

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Title Breeding tomato (Solanum lycopersicum L.) for resistance to biotic and abiotic stresses
Not Available
 
Creator A.T. Sadashiva
Peter Hanson
M. Krishna Reddy
K.V. Ravishankar
Manoj Prasad
H.C. Prasanna
K. Madhavi Reddy
T.H. Singh
R.K. Saritha
Zakir Hussain
J.B. Mythili
K.S. Shivashankara
R. M. Bhatt
R.H. Laxman
R.B. Tiwari
V. Sridhar
V. Sowmya
Kumar N.P.
Manmohan Kumar
Ashish Kaushal
Amarjeet Kumar Rai
Vinod Jatav
Lasya Bhat
 
Subject Begomovirus
Bacterial wilt
Early blight
Multiple disease resistance
Tomato breeding
 
Description Not Available
Tomato (Solanum lycopersicum L.) is an important vegetable crop cultivated in the tropical
and sub-tropical regions of the world. Low productivity in India is due to occurrence of both
biotic and abiotic stresses. Among the biotic stresses, tomato leaf curl disease, bacterial wilt,
early blight and Groundnut Bud Necrosis Virus disease have become serious production
constraints causing considerable yield loss in the major tomato growing areas of the country.
Adoption of multiple disease resistant varieties or F1 hybrids would be the most appropriate way to address these diseases. At ICAR-IIHR, Bengaluru systematic breeding strategies were employed to pyramid genes for resistance to early blight, bacterial wilt and tomato leaf curl diseases and to develop advanced breeding lines& F1 hybrids with triple disease resistance. Stable source of resistance to early blight and bi-partite begomo-virus (Tomato Leaf Curl New Delhi Virus) has been identified in Solanum habrochaites LA-1777. Validation with molecular markers linked to tomato leaf curl virus resistance revealed that LA-1777 carryTy2 and other putative resistant genes. Several high yielding dual purpose hybrids were also developed for fresh market and processing with high level of resistance to multiple diseases. Cherry tomato lines have also been bred for high TSS, total carotenoids, total phenols, flavonoids, vitamin C, acidity and lycopene content. IIHR-249-1, IIHR-2101 (Solanum habrochaites LA-1777), IIHR- 2866 and IIHR-2864 recorded high values for quality parameters like total carotenoids, lycopene, vitamin C, total phenols, flavonoids and TSS. Drought tolerant root stock has been developed by an interspecific cross between S. habrochaites LA-1777 and S. lycopersicum (15 SB SB).
Resistant sources have also been identified against Tuta absoluta, a serious insect pest reported from major tomato growing areas in the country in recent time. High temperature tolerant breeding lines are in pipeline.
Not Available
 
Date 2019-04-24T08:06:37Z
2019-04-24T08:06:37Z
2017
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/18823
 
Language English
 
Relation Not Available;
 
Publisher Society for Promotion of Horticulture