Phosphorus (P) in soils is ultimately deficient plant nutrient that has
astonishing impacts over crop production especially under rain-fed agricultural
conditions. Typically, P deficiency in plants is to stimulate root growth. This
response influences the balance of all plant nutrients, including P nutrition,
in varieties with different root / stem development. For this reason, the
effects of P fertilization on nutrient composition of both straw and grain for 12
bread and 3 durum wheat varieties, which are widely cultivated in the
Mediterranean Region under rain-fed conditions, were studied with and without P
application. The experiment was set-up in completely randomised design in
factorial arrangement with three replications. In the experiment, nitrogen (N),
potassium (K) and zinc (Zn) were applied to all pots; P was administered at a
dose of 0 and 50 mg kg-1. Nitrogen, P, K, calcium (Ca), magnesium
(Mg), sodium (Na), iron (Fe), copper (Cu), Zn and manganese (Mn) concentrations
were determined in both the straw and grains of the harvested plants.
Phosphorous fertilization affected the concentration of P, N and Mn in the
grain positively, while it affected the concentration of Ca, Mg, Na, Fe, Cu and
Zn negatively, while K did not change the concentration. In straw, N
concentration was not affected by P fertilization; Fe and Na concentrations
were to accumulate in the straw; Cu, Mn, Zn, P, Ca, Mg and K concentrations
were to decrease. On the other hand, varieties showed different responses to P
fertilization in terms of their nutrient composition. Consequently, the
susceptibility of the varieties to phosphorus deficiency significantly changed
the nutrient uptake and partition of the plant nutrients between grain and
straw.
Primary Language | English |
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Journal Section | Original Papers |
Authors | |
Publication Date | December 8, 2018 |
Submission Date | November 14, 2018 |
Acceptance Date | December 6, 2018 |
Published in Issue | Year 2018 Volume: 2 Issue: 2 |