Effect of higher temperature on leaf anatomy of heat tolerance and heat susceptible wheat genotypes (Triticum aestivum L.) by scanning electron microscopy

Abstract

A heat tolerance (DBW-150, GW-463, WH-1179, J-2015-03, HD-3118) and heat susceptible (WH-1184, UP-2903, GW-477, NIAW-2495, PBW-725) wheat genotypes were selected and grown up to tillering and grain filling stage. The plants were subjected to two different dates: 1st sowing was done at the date of 28th November 2016 and 2nd sowing was done at the date of 31st December 2016. Scanning electron microscopy of wheat leaves showed differences for stomata width among heat tolerance and susceptible genotypes. Also anatomy was affected adversely under higher temperature in all ten genotypes leaf but with more affected in susceptible as compared to tolerance genotypes.