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Microevolution of elements productivity of shoot spring soft wheat of the saratov selection

The structure of elements of efficiency of runaway of summer soft wheat of the different grades created from the beginning of the XX-th century is analysed. Various tendencies in development of length of a stalk, number of spikelets and kernels an ear, weight kernels are revealed.

Structure of elements productivity introgression cultivarsand lines of spring soft wheat of the Saratov selection

Within two years differing on weather conditions, the structure of a crop of spring soft wheat was studied. Comparison introgression grades and lines with genetically homogeneous grades has shown their approximate similarity on number of lateral shoot. The length of a stalk made on years of vegetation of plants from 469 to 605 mm, length of an ear − from 63 to 90 mm. The share of an ear from length of shoot varied from 10.9 to 14.6 %. The number of cones of an ear on the average for 2 years of studying made from 12.4 to 14.4 pieces.