Male subfertility/infertility is acknowledged to contribute significantly to infertility problems experienced by couples. In some instances, morphological and/or physiological defects known to interfere with normal sperm function can be identified. However, in others, no obvious cause of fertilization failure can be identified. The recent introduction of molecular methods has made it possible t...

Production of more than one morphological type of sperm in a common testis has been documented for a variety of invertebrates, including gastropods, spiders, centipedes, and insects. This unusual phenomenon is difficult to explain by current theory, particularly since available evidence indicates that one sperm type is often incapable of effecting fertilization. In this review we critically exa...

Pot-test experiments were conducted to study the influences of mulching and fertilizing on the migration of heavy metals from soil to Vicia faba (broad bean). Semi-transparent film was used to mulch soil. Swine manure compost was mixed with soil at a rate of 50 mg kg(-1) to fertilize the soil. Broad bean was grown for several months until fruits were formed. Soils and bean parts were sampled to...

Abstract In the conditions of greenhouse I.A.Bunin YSU, influence water-soluble multicomponent micronutrients - Green Lift, Nutrivant Plus was studied Melon, Vitanol Micro on physiological development cucumber plants “Monsoon F1”. It established that micro fertilizers affect plant growth. The high efficiency non-root fertilizing growth processes in variants with use Lift revealed. smallest resu...

Due to the lack of scientific knowledge for the use of substrate and best fertilizing method in the growth of Araucaria excelsa, it is crucially important to find the most appropriate planting substrate and fertilizing method. The effect of conventional fertilizing method and the application of Fe nanofertilizer were studied on the growth of A. excelsa in which six fertilizing methods and three...