Morphological and physiological effects of water deficit and endophyte infection on contrasting tall fescue cultivars

Autor:	S. J. Haslett, Peter D. Kemp, G. C. M. Latch, David J. Barker, Cory Matthew, S. G. Assuero
Rok vydání:	2000
Předmět:	Stomatal conductance biology fungi food and beverages Soil Science Tiller (botany) Plant Science biology.organism_classification Neotyphodium Endophyte Horticulture Agronomy Dry weight Animal Science and Zoology Cultivar Agronomy and Crop Science Water content Festuca arundinacea
Zdroj:	ResearcherID
ISSN:	1175-8775 0028-8233
DOI:	10.1080/00288233.2000.9513408
Popis:	Morphological and physiological responses to water deficit of two tall fescue (Festuca arundinacea) cultivars were compared in a glasshouse experiment and the effect, on those responses, of artificial infection of the tall fescue plants with two fungal endophyte (Neotyphodium coenophialum) strains was evaluated. The cultivars were Maris Kasba (MK), of Mediterranean origin, and El Palenque (EP), an Argentinian cultivar of temperate origin. The endophyte strains AgResearch isolate (AR501) and the Kentucky (KY31) wild type were compared with nil‐endophyte controls. Leaf growth rate of EP plants under water deficit was higher and leaf senescence rate lower than for MK plants (P < 0.05). MK plants showed a greater increase in the proportion of dead leaf tissue than EP plants as water deficit increased (P < 0.05). Stomatal conductance and lamina osmotic adjustment at low soil moisture were lower for MK than EP (P < 0.05). Endophyte‐infected plants had a lower dry weight and tiller number, but a higher ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25907f56aa9f42b40b53472c20cab328 https://doi.org/10.1080/00288233.2000.9513408 Zobrazit plný text záznamu