Investigations on the function of primary roots in the mineral uptake
The experiments have been carried out in the plant pots, nutrient solution, and field conditions P32. The Spring Marquis wheat and Proctor spring barley have been used as biological materials. The results obtained in all the experiments proved that both primary rootsand adventitious roots have the capacity of uptake and persisting until the maturity of strawed cereals. Thus it is possible to supply the plants with nutrient elements from superficial layers of the soil by means of the adventitious roots that are shorter, and form lower soil layers as well by means of the primary roots that are longer. The semional roots can nourish the plants with nutrient elements until the maturity even in the absence of adventitious roots a fact invalidated by a great number of research workers. The uptake capacity of the adventitious roots is smaller than that of the primary roots.
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