Physiological characterization of 'stay green' mutants in durum wheat.

Abstract

Four mutants with delayed leaf senescence were selected from seed of durum wheat mutagenized with ethylmethane sulphonate. Changes in net photosynthetic rate, efficiency of photosystem II and chlorophyll concentration during the maturation and senescence of the flag leaves of both mutant and parental plants were determined under glasshouse conditions. The four mutant lines maintained photosynthetic competence for longer than the parental line and are therefore functionally 'stay green'. The mutant lines also had higher seed weights and grain yields per plant than the parental line.

Extracted Key Phrases

4 Figures and Tables

Cite this paper

@article{Spano2003PhysiologicalCO, title={Physiological characterization of 'stay green' mutants in durum wheat.}, author={Giuseppe Spano and Natale Di Fonzo and Carla Perrotta and Cristiano Platani and Giuseppe Ronga and David W. Lawlor and Johnathan A Napier and Peter R Shewry}, journal={Journal of experimental botany}, year={2003}, volume={54 386}, pages={1415-20} }