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The introduction and spontaneous hybridization of blackcurrant (Ribes nigrum L.)

Смородина черная (Ribes nigrum L.) является одним из полезных окультуренных видов. Приведены сведения о достижениях в его интродукции и селекции в XIX − XXI столетиях. Интродукция, отдаленная гибридизация и посев семян от свободного опыления зимостойких, урожайных и крупноплодных культиваров данного вида позволили отечественным селекционерам создать ряд выдающихся сортов, объединив географически разобщенный генофонд. Чаще других интродуцентов при отдаленной гибридизации использованы старые западноевропейские сорта ‘Голиаф’ и ‘Бредторп’.

Features distribution of plants in wheat agropopulation on classes of the variation of elements efficiency of the ear

Vegetation conditions essentially affect distribution of plants in agropopulation of durum wheat on classes of a variation number of spikelets, quantities kernels an  ear and their weight. Among cultivars of the Saratov selection in the conditions of extreme year on agroclimatic conditions it is characteristic various number of plants: to age–old cultivars – the small classes, to new cultivars – the big classes of a variation. Favorable agroclimatic conditions raise number of the plants carried to higher classes of a variation of elements of efficiency of an ear.

The plant introduction of Phlox paniculata under the climatic condition of Lover Volga region

The advanced data are presented about shoot-forminq capacity of Phlox paniculata's cultivars, The observation of the growth, development and the persistence of Phlox paniculata's cultivars under the extremal hot vegetation condition of the year 2010 let to select the most stable cultivars.

The introduction оf different varieties of annual lupin to Mordovia region

People have been practicing the geographical spreading of plants for many centuries. It helps to use fully their  potential. The theoretical base for the introduction of cultivated crops from one natural zone to another was elaborated by N. I. Vavilov with the using of the genetic diversity of primary and secondary genetic centers. His ideas were later developed in the works of N. A. Basilevskaja and in reference to lupin in the works of   N. A. Maisurjan, A. I. Atabecova, V. I. Golovchenko, N. F. Sanaev and others.

Cultivare features of development of envelopes kernel of the winter wheat

Experimental data on a thickness of envelope kernels in different years of vegetation of plants, to parametres and dynamics of development of cross cells pericarp seeds of grades of a winter wheat are resulted.

Introduction of narcissi in the Komi Republic

Collection of the Botanical Garden includes numerous cultivars of garden narcissus (93) and one natural species, Narcissus poёticus L. The plants are studied in terms of morphological and biological properties, resilience, and ornamental properties. The majority of narcissi are promising to be grown in the taiga zone of the Komi Republic.