PHENOTYPIC STRUCTURE OF ENGLISH OAK CENOPOPULATION BY WEIGHT AND SHAPE OF ACORNS
The data on the variability of weight and shape of English oak acorns in various ecotopes of the Republic of Mari El were given. It was concluded that it was better to assess the phenotypic structure of English oak cenopopulation and select the plus trees to obtain seed material by the weight of acorns, not the shape. The weight of acorns is closely related to the multiplication of acorn length and the square of its diameter, i.e. volume.