The scientific and practical problems of deterioration the soil fertility apple tree plantations under drip irrigation with mineralized waters are discussed. A significant decrease in biodiversity was revealed, depending on duration cultivation fruit plantations. prerequisite for biologization is an objective assessment availability nutrients droppers, which will reduce load environment as a re...

Introduction Jujube (Ziziphus mauritiana Lam.) tree is subjected to attack by different fungal pathogens causing various diseases. In India, powdery mildew (Oidium sp.) causes defoliation and fruit-drop. Sooty mold (Cladosporium zizyphi) causes leaves to fall. Leaf spot results from infection by Cercospora spp. and Isariopsis indica var. zizyphi. Leaf rust, caused by Phakopsora zizyphi-vulgaris...

Different species of Phytophthora cause serious and economically important soilborne diseases of citrus throughout the World. Tree and crop production losses occur from damping-off of seedlings in the seedbed, root and crown rot in nurseries, foot rot and fibrous root rot, and brown rot of fruit in groves. Foot rot results from infection of the bark near the ground level producing lesions on th...

In order toexplore the regulation mechanism of macadamia fruitlet abscission induced by ‘starvation stress’, a treatment girdling and defoliation was applied to bearing shoots cultivar ‘H2’ at early stage fruit development, simulating starvation stress interrupting carbon supply fruit. The levels carbohydrates, hormones, related gene expression in different tissues (husk, seed, pedicel) were in...