Biological Properties of Precocious Forms of Walnut

Khusen Fatullayevich Khamrayev, Otabek Akhmadovich Shaymatov

Abstract: A variety of forms of walnut, primarily manifests in the morphological traits of the fruit. According to the shape of the fruit, nuts are very diverse - from round to elongated-oblong, in color from straw-yellow to dark brown, in size and weight of the fruit from large to small, in shell thickness from thin to hard-shelled, in taste from bitter to sweet and too oily, by recoverability - from hard to easily recoverable. Biologically, the forms of walnut can be divided into early and late flowering, resistant and not resistant to diseases, regularly and not regularly fruiting, fruitful and not fruitful.

Keywords: walnut, biological trait, selected, plus trees