Heat stress resistance drives coordination of emissions of suites of volatiles after severe heat stress and during recovery in five tropical crops

•Heat shock application led to a major inhibition of net assimilation rate similarly in all species but the recovery varied among species.•Differently altered key volatile compound emissions upon heat stress were based on species physiological activity and heat resistance.•More heat-resistant species had a lower immediate stress volatile emission response and a greater degree of photosynthetic recovery.•More heat-resistant species had greater constitutive volatile emissions and reduced or limitedly enhanced volatile emissions during recovery.•Less heat-resistant species suffered more from the heat stress, and showed a stronger enhancement of emissions of stress-dependent volatiles.