Towards Better Grafting: SCoT and CDDP Analyses for Prediction of the Tomato Rootstocks Performance under Drought Stress

Mohamed M. El-Mogy; Mohamed A. M. Atia; Faten Dhawi; Ahmed S. Fouad; Eslam S. A. Bendary; Ebtihal Khojah; Bassem N. Samra; Karima F. Abdelgawad; Mohamed F. M. Ibrahim; Emad A. Abdeldaym

doi:10.3390/agronomy12010153

Agronomy (Jan 2022)

Towards Better Grafting: SCoT and CDDP Analyses for Prediction of the Tomato Rootstocks Performance under Drought Stress

Mohamed M. El-Mogy,
Mohamed A. M. Atia,
Faten Dhawi,
Ahmed S. Fouad,
Eslam S. A. Bendary,
Ebtihal Khojah,
Bassem N. Samra,
Karima F. Abdelgawad,
Mohamed F. M. Ibrahim,
Emad A. Abdeldaym

Affiliations

Mohamed M. El-Mogy: Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
Mohamed A. M. Atia: Molecular Genetics and Genome Mapping Laboratory, Genome Mapping Department, Agricultural Genetic Engineering Research Institute (AGERI), Agricultural Research Center (ARC), Giza 12619, Egypt
Faten Dhawi: Agricultural Biotechnology Department, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al-Ahsa 31982, Saudi Arabia
Ahmed S. Fouad: Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt
Eslam S. A. Bendary: Agricultural Biotechnology Department, College of Agricultural and Food Sciences, King Faisal University, P.O. Box 420, Al-Ahsa 31982, Saudi Arabia
Ebtihal Khojah: Department of Food Science and Nutrition, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Bassem N. Samra: Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
Karima F. Abdelgawad: Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt
Mohamed F. M. Ibrahim: Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo 11566, Egypt
Emad A. Abdeldaym: Vegetable Crops Department, Faculty of Agriculture, Cairo University, Giza 12613, Egypt

DOI: https://doi.org/10.3390/agronomy12010153
Journal volume & issue: Vol. 12, no. 1
p. 153

Abstract

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This study aims to predict the behavior of different tomato rootstocks under drought stress conditions. SCoT and CDDP analyses were employed to characterize the genetic relatedness among a commercial drought-sensitive tomato hybrid (cv. Bark) and four wild tomato accessions (LA2711, LA1995, LA3845, and LA4285) known for their tolerance to adverse conditions. The Bark plants were grafted onto the aforementioned wild accessions and self-grafted as control, and then the behavior of all graft unions was followed under normal and drought stress conditions. Our results showed a general genotype-dependent better growth and yield of heterografts than autografts under all growth conditions. Furthermore, clustering analysis based on growth, yield quantity and quality traits, and the leaf content of minerals, ABA, GA3, and proline, in addition to the activity of APX, POD, and DHAR reflected the same grouping pattern of the studied rootstocks exhibited by SCoT and CDDP. The identical grouping pattern supports the utilization of SCoT and CDDP as a robust screening tool helpful to predict the physiological and agronomical behavior of grafting on different tomato rootstocks. Furthermore, grafting could be a cost-efficient alternative method to improve drought tolerance in sensitive tomato genotypes.

Published in Agronomy

ISSN: 2073-4395 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Agriculture
Website: http://www.mdpi.com/journal/agronomy

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