Exploring the better genetic options from indigenous material to cultivate tomato under high temperature regime

Authors

  • Araiz Nazir Institute of Horticultural Sciences, University of Agriculture, Faisalabad
  • Muhammad Rashid Shaheen Department of Horticultural Sciences, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur
  • Choudhary M Ayyub Institute of Horticultural Sciences, University of Agriculture, Faisalabad
  • Rashid Hussain Department of Horticultural Sciences, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur
  • Nadeem Sarwer Nuclear Institute of Agriculture and Biology, Faisalabad
  • Muhammad Imran Department of Soil Sciences, Bahauddin Zakariya University, Multan
  • Muhammad Aurangzaib Department of Agronomy, University College of Agriculture and Environmental Sciences, The Islamia University of Bahawalpur
  • Muhammad Nawaz Department of Environmental Sciences, BZU, Multan,
  • Muhammad Faizan Ali Khan
  • Yussra Yawad Departments of Environmental Sciences, Bahauddin Zakariya University, Multan
  • Munawar Iqbal Departments of Environmental Sciences, Bahauddin Zakariya University, Multan

DOI:

https://doi.org/10.5073/JABFQ.2017.090.042

Keywords:

Tomato, Genotypes, Screening, Heat stress

Abstract

Screening test was conducted on 54genotypes of tomato to analyze the effect of heat stress and categorize them as heat tolerant or heat susceptible ones. Seedlings were grown at temperatures of 28/22oC day/night. Four weeks after sowing, plants were exposed to high temperatures of 40/32oC day/night for one week. Data for various morphological (root and shoot length, root and shoot fresh and dry weight, number of leaves) and physiological parameters (chlorophyll contents, sub-stomatal CO2, transpiration rate, stomatal conductance, photosynthetic rate, water use efficiency and leaf temperature) were recorded. Heat stress had a negative effect on all physiological and morphological processes of the genotypes. However, “Parter Improved”, “Legend” and “Roma” were the most tolerant genotypes whereas “Grus Chovka”, “Nepoli”, “Tima France”, “Kaldera” and “Cold Set” were susceptible to heat stress.

Downloads

Published

2017-12-01

Issue

Vol. 90 (2017): Journal of Applied Botany and Food Quality

Section

Article

License

From Volume 92 (2019) on, the content of the journal is licensed under the Creative Commons Attribution 4.0 License. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes are labelled.

The copyright of the published work remains with the authors. If you want to use published content beyond what the CC-BY license permits, please contact the corresponding author, whose contact information can be found on the last page of the respective article. In case you want to reproduce content from older issues (before CC BY applied), please contact the corresponding author to ask for permission.