NATIVE TOLERANCE OF FOUR DAY OLD SEEDLINGS WHEAT TO DROUGHT STRESS

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KOOBAZ PARISA; GHANATI FAEZEH; HOSSEINI SALEKDEH GHASEM; HEIDARI MANZAR; MORADI FOAD; ALE BUYE RAUFEH

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Journal: JOURNAL OF PLANT PROCESS AND FUNCTION Year:2014 | Volume:3 | Issue:7 Page(s): 81-91

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Title

NATIVE TOLERANCE OF FOUR DAY OLD SEEDLINGS WHEAT TO DROUGHT STRESS

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Keywords

DROUGHT STRESSQ2

RESURRECTION PLANTSQ2

WHEAT SEEDLINGQ2

Abstract

The present study was undertaken in order to evaluate native desiccation tolerance and its mechanism in WHEAT SEEDLINGs of different genotypes. At the first step, DROUGHT STRESS was applied by using different concentrations of polyethylene glycol (PEG) and mannitol. Due to the fact that these compounds (even in high concentrations) were not able to produce sever water stress, the experiment was carried out by stop irrigation method. The results of drought tolerance in different days of growth (3, 4 & 7 days) showed that four-day WHEAT SEEDLINGs had the most tolerance to serious DROUGHT STRESS and this toleration was similar to that of desiccation tolerant and RESURRECTION PLANTS. Also, it was intuitive, and irrespective of wheat genotypes. Four-day WHEAT SEEDLINGs were well able to tolerate DROUGHT STRESS up to more than 3weeks and produce new roots 3 days after re-watering. One Iranian cultivar which was sensitive to terminal DROUGHT STRESS, Marvdasht, was used for further analysis. Prolonged DROUGHT STRESS (10 to 30 days) showed that 4-day seedlings of this genotype tolerated desiccation and grew up very well. The results also showed that soluble sugars, e.g. glucose and mannose increased after stress but decreased after re-watering. Cessation of the growth of seedlings which were separated from seeds even in nutrient media indicated that connection to seeds is an inevitable condition for expression of drought tolerance by seedlings.

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APA: Copy

KOOBAZ, PARISA, GHANATI, FAEZEH, HOSSEINI SALEKDEH, GHASEM, HEIDARI, MANZAR, MORADI, FOAD, & ALE BUYE, RAUFEH. (2014). NATIVE TOLERANCE OF FOUR DAY OLD SEEDLINGS WHEAT TO DROUGHT STRESS. JOURNAL OF PLANT PROCESS AND FUNCTION, 3(7), 81-91. SID. https://sid.ir/paper/234195/en

Vancouver: Copy

KOOBAZ PARISA, GHANATI FAEZEH, HOSSEINI SALEKDEH GHASEM, HEIDARI MANZAR, MORADI FOAD, ALE BUYE RAUFEH. NATIVE TOLERANCE OF FOUR DAY OLD SEEDLINGS WHEAT TO DROUGHT STRESS. JOURNAL OF PLANT PROCESS AND FUNCTION[Internet]. 2014;3(7):81-91. Available from: https://sid.ir/paper/234195/en

IEEE: Copy

PARISA KOOBAZ, FAEZEH GHANATI, GHASEM HOSSEINI SALEKDEH, MANZAR HEIDARI, FOAD MORADI, and RAUFEH ALE BUYE, “NATIVE TOLERANCE OF FOUR DAY OLD SEEDLINGS WHEAT TO DROUGHT STRESS,” JOURNAL OF PLANT PROCESS AND FUNCTION, vol. 3, no. 7, pp. 81–91, 2014, [Online]. Available: https://sid.ir/paper/234195/en

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