Traits related to drought tolerance in tomato accessions of different growth type and fruit size
Abstract
This study was undertaken to investigate the possibilities for breeding drought tolerant tomatoes of different growth type and fruit size. The effects of drought were analyzed and the relationships among the observed traits at optimal irrigation and drought were interpreted using biplot analysis. Greenhouse pot experiment included 40 tomato accessions grown under optimal irrigation and drought (volumetric soil water content 35.0% and 20.9%), designed in complete randomized blocks. Observations were made at the intensive vegetative growth phase. The selection criterion for drought tolerance was plant dry weight. The accessions differed in: the whole plant, shoot and root dry weight, root proportion in plant dry weight (RP), plant height, number of leaves below the first flower branches (NL), number of lateral branches, and the first and second order lateral branches length. Drought resulted in significant decline, with the exceptions of the increased RP and NL. Determinate and indetermi...nate tomatoes were not significantly different in drought tolerance, implying that both types may be bred for tolerance to the stress; however, the accessions of larger fruit size had comparatively higher water requirements. Results of the biplot analysis indicated that drought tolerance in tomato does not necessarily have to be associated with robust root system and therefore the indirect selection strategy may rely on shoot traits.
Keywords:
Biplot / drought / Lycopersicon esculentum / vegetative growthSource:
Journal of Animal & Plant Sciences, 2017, 27, 3, 869-876Publisher:
- Pakistan Agricultural Scientists Forum
Funding / projects:
- Biotechnological approaches for overcoming effects of drought on agricultural production in Serbia (RS-31005)
- Integrating biotechnology approach in breeding vegetable crops for sustainable agricultural systems (RS-31059)
Collections
Institution/Community
FiVeRTY - JOUR AU - Brdar-Jokanović, Milka AU - Girek, Zdenka AU - Pavlović, Suzana AU - Ugrinović, Milan AU - Zdravković, Jasmina PY - 2017 UR - http://fiver.ifvcns.rs/handle/123456789/1707 AB - This study was undertaken to investigate the possibilities for breeding drought tolerant tomatoes of different growth type and fruit size. The effects of drought were analyzed and the relationships among the observed traits at optimal irrigation and drought were interpreted using biplot analysis. Greenhouse pot experiment included 40 tomato accessions grown under optimal irrigation and drought (volumetric soil water content 35.0% and 20.9%), designed in complete randomized blocks. Observations were made at the intensive vegetative growth phase. The selection criterion for drought tolerance was plant dry weight. The accessions differed in: the whole plant, shoot and root dry weight, root proportion in plant dry weight (RP), plant height, number of leaves below the first flower branches (NL), number of lateral branches, and the first and second order lateral branches length. Drought resulted in significant decline, with the exceptions of the increased RP and NL. Determinate and indeterminate tomatoes were not significantly different in drought tolerance, implying that both types may be bred for tolerance to the stress; however, the accessions of larger fruit size had comparatively higher water requirements. Results of the biplot analysis indicated that drought tolerance in tomato does not necessarily have to be associated with robust root system and therefore the indirect selection strategy may rely on shoot traits. PB - Pakistan Agricultural Scientists Forum T2 - Journal of Animal & Plant Sciences T1 - Traits related to drought tolerance in tomato accessions of different growth type and fruit size EP - 876 IS - 3 SP - 869 VL - 27 UR - https://hdl.handle.net/21.15107/rcub_rivec_196 ER -
@article{ author = "Brdar-Jokanović, Milka and Girek, Zdenka and Pavlović, Suzana and Ugrinović, Milan and Zdravković, Jasmina", year = "2017", abstract = "This study was undertaken to investigate the possibilities for breeding drought tolerant tomatoes of different growth type and fruit size. The effects of drought were analyzed and the relationships among the observed traits at optimal irrigation and drought were interpreted using biplot analysis. Greenhouse pot experiment included 40 tomato accessions grown under optimal irrigation and drought (volumetric soil water content 35.0% and 20.9%), designed in complete randomized blocks. Observations were made at the intensive vegetative growth phase. The selection criterion for drought tolerance was plant dry weight. The accessions differed in: the whole plant, shoot and root dry weight, root proportion in plant dry weight (RP), plant height, number of leaves below the first flower branches (NL), number of lateral branches, and the first and second order lateral branches length. Drought resulted in significant decline, with the exceptions of the increased RP and NL. Determinate and indeterminate tomatoes were not significantly different in drought tolerance, implying that both types may be bred for tolerance to the stress; however, the accessions of larger fruit size had comparatively higher water requirements. Results of the biplot analysis indicated that drought tolerance in tomato does not necessarily have to be associated with robust root system and therefore the indirect selection strategy may rely on shoot traits.", publisher = "Pakistan Agricultural Scientists Forum", journal = "Journal of Animal & Plant Sciences", title = "Traits related to drought tolerance in tomato accessions of different growth type and fruit size", pages = "876-869", number = "3", volume = "27", url = "https://hdl.handle.net/21.15107/rcub_rivec_196" }
Brdar-Jokanović, M., Girek, Z., Pavlović, S., Ugrinović, M.,& Zdravković, J.. (2017). Traits related to drought tolerance in tomato accessions of different growth type and fruit size. in Journal of Animal & Plant Sciences Pakistan Agricultural Scientists Forum., 27(3), 869-876. https://hdl.handle.net/21.15107/rcub_rivec_196
Brdar-Jokanović M, Girek Z, Pavlović S, Ugrinović M, Zdravković J. Traits related to drought tolerance in tomato accessions of different growth type and fruit size. in Journal of Animal & Plant Sciences. 2017;27(3):869-876. https://hdl.handle.net/21.15107/rcub_rivec_196 .
Brdar-Jokanović, Milka, Girek, Zdenka, Pavlović, Suzana, Ugrinović, Milan, Zdravković, Jasmina, "Traits related to drought tolerance in tomato accessions of different growth type and fruit size" in Journal of Animal & Plant Sciences, 27, no. 3 (2017):869-876, https://hdl.handle.net/21.15107/rcub_rivec_196 .