ИНТРОДУКЦИЯ ДВУХ ОБРАЗЦОВ ЛУКА КУНТА В ЮЖНО-УРАЛЬСКОМ БОТАНИЧЕСКОМ САДУ-ИНСТИТУТЕ

Abstract

The paper presents the results of introductoin study of two samples of A. kunthianum Vved.: information is given on the study of the seasonal rhythm of development, seed productivity and the peculiarity of reproduction. A. kunthianum is endemic to the Caucasus, grows in highland meadows and rocks. The studied samples of A. kunthianum were grown from seeds, the plants entered a generative state in the 2nd year of life. The flowering phase of the German specimen occurs at the end of the 2nd decade of June and lasts 23 days. The Binsky specimen blooms at the end of the 3rd decade of June, lasting up to 20 days. According to the flowering dates, A. kunthianum belongs to the early-middle-summer. The duration of the interphase is the beginning of vegetation - the beginning of flowering in the studied samples of this onion is on average 65-73 days (German and Binsky, respectively). A. kunthianum according to the phenorhethmotype belongs to the short-vegetating summergreen, vegetation ends in the fruiting phase (in the 2nd-3rd decade of July). Seed ripening occurs in late July - early August. The number of flowers in the umbrella of the German sample is from 81 to 105 pcs., In Binsky - from 48 to 101 pcs. On average, less by 18 pcs.; the number of fruits in inflorescences of the German specimen has from 43 to 62 pcs., Binsky - from 30 to 54 pcs. On average, less by 11.7 pcs.; real seed productivity of the umbrella in the German sample - from 77 to 142 pcs. Seeds, in the bin sample - from 65 to 90 pcs.; potential seed productivity of one inflorescence in a Germanic sample from 468 to 630 pieces of seeds, in a binary sample - from 286 to 605 pieces of seeds. The average productivity ratio of the studied samples is only 17 and 18.6% (German and binary, respectively). In terms of the sum of points, few promising plants are assigned to the group (13 points).