Effects of Drought, Heat and Their Interaction on the Growth, Yield and Photosynthetic Function of Lentil (Lens culinaris Medikus) Genotypes Varying in Heat and Drought Sensitivity

Frontiers in Plant Science
Akanksha SehgalHarsh Nayyar

Abstract

Rising temperatures and drought stress limit the growth and production potential of lentil (Lens culinaris Medikus), particularly during reproductive growth and seed filling. The present study aimed to (i) investigate the individual and combined effects of heat and drought stress during seed filling, (ii) determine the response of lentil genotypes with contrasting heat and drought sensitivity, and (iii) assess any cross tolerance in contrasting genotypes. For this purpose, eight lentil genotypes (two drought-tolerant, two drought-sensitive, two heat-tolerant, two heat-sensitive) were either sown at the normal time (second week of November 2014), when the temperatures at the time of seed filling were below 30/20°C (day/night), or sown late (second week of February 2015) to impose heat stress (temperatures > 30/20°C (day/night) during reproducive growth and seed filling. Half of the pots in each sowing environment were fully watered throughout (100% field capacity) while the others had water withheld (50% of field capacity) from the start of seed filling to maturity. Both heat and drought, individually or in combination, damaged cell membranes, photosynthetic traits and water relations; the effects were more severe with the combi...Continue Reading

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Citations

Jun 14, 2020·Physiologia Plantarum·Damián BalfagónAurelio Gómez-Cadenas
Sep 14, 2018·Frontiers in Plant Science·Sangam L DwivediRodomiro Ortiz
Aug 16, 2019·Metabolites·Simone RochfortJoe Panozzo
May 21, 2019·The Plant Journal : for Cell and Molecular Biology·Leonardo HinojosaAndrei Smertenko
Jan 23, 2020·International Journal of Molecular Sciences·Yanli DuFuti Xie
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Apr 4, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Manu PriyaHarsh Nayyar
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Jul 26, 2019·International Journal of Molecular Sciences·Federico SebastianiMassimiliano Tattini
Nov 18, 2020·Environmental Science and Pollution Research International·Muhammad Habib Ur RahmanWajid Nasim
Apr 9, 2021·Critical Reviews in Biotechnology·Ali RazaRajeev K Varshney
Apr 9, 2021·Physiologia Plantarum·Jitendra KumarNarendra Pratap Singh
Aug 10, 2021·Physiology and Molecular Biology of Plants : an International Journal of Functional Plant Biology·Veena PandeyShyamal K Nandi
Sep 6, 2021·The Plant Journal : for Cell and Molecular Biology·Rosa M RiveroSara I Zandalinas

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