title: The effect of water stress on some morphological, physiological, and biochemical characteristics and bud success on apple and quince rootstocks.
abstract: The effects of different water stress (control, medium, and severe) on some morphological, physiological, and biochemical characteristics and bud success of M9 apple and MA quince rootstocks were determined. The results showed that water stress significantly affected most morphological, physiological, and biochemical characteristics as well as budding success on the both rootstocks. The increasing water stress decreased the relative shoot length, diameter, and plant total fresh and dry weights. Leaf relative water content and chlorophyll index decreased while electrolyte leakage increased with the increase of water stress in both rootstocks. An increase in water stress also resulted in reduction in budding success in Vista Bella/M9 (79.33% and 46.67%) and Santa Maria/MA (70.33% and 15.33%) combinations. However, the water stress in Santa Maria/MA was more prominent. The increase in water stress resulted in higher peroxidase activities as well as phenol contents in both rootstocks. Although catalase activity, anthocyanin, and proline contents increased with the impact of stress, this was not statistically significant. The results suggest that the impact of stress increased with the increase of water stress; therefore, growers should be careful when using M9 and MA rootstocks in both nursery and orchards where water scarcity is present.
authors.affiliation: Department of Horticulture, Faculty of Agriculture, Harran University, Sanliurfa, Turkey.
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Bolat
authors.affiliation: Department of Plant Protection, Faculty of Agriculture, Harran University, Sanliurfa, Turkey.
authors.forename: Murat
authors.initials: M
authors.lastname: Dikilitas
authors.affiliation: Department of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum, Turkey.
authors.forename: Sezai
authors.initials: S
authors.lastname: Ercisli
authors.affiliation: Department of Horticulture, Faculty of Agriculture, Harran University, Sanliurfa, Turkey.
authors.forename: Ali
authors.initials: A
authors.lastname: Ikinci
authors.affiliation: Department of Biosystem Engineering, Faculty of Agriculture, Ordu University, Ordu, Turkey.
authors.forename: Tahsin
authors.initials: T
authors.lastname: Tonkaz
mesh_terms: D027845:Malus / Q000378:metabolism* / Q000502:physiology*; D018515:Plant Leaves / Q000378:metabolism / Q000502:physiology; D027824:Rosaceae / Q000378:metabolism* / Q000502:physiology*; D014867:Water / Q000378:metabolism
chemical_list: D014867:Water
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