THE IMPORTANCE OF STUDIES ON THE LAXIAL EAR OF SIBERIAN PINE CONES
The connection of the laxial ear of Siberian pine cones with the seeds germination, general yields and yields structure has been studied. The feasibility of differentiated use of the above criteria when selecting plus trees is shown. The number of one-seeded glumes in the fertile zone is not connected with the yielding capacity but it is positively connected with its seeds germinating power. When selecting Siberian pine trees with large cones by their seed stalks, it is of use to determine the factor of laxial ear to cull the plants with large cones, which possess a significant amount of one-seeded glumes on their cones.