всхожесть семян

Features of germination of the seeds of Betonica officinalis (L.) Kuntze in the laboratory

Authors: Demochko Y. A., Shilova I. V., Ivanova E. V., Kostetsky O. V.

Приводятся результаты лабораторных исследований всхожести семян Betonica officinalis (L.) Kuntze. Семена собирались в 1994 − 2011 годы с коллекционных растений, интродуцированных в Ботаническом саду Саратовского государственного университета. Контрольную партию семян проращивали при комнатной температуре (22 − 25°С) на свету.

Features of seed germination Bulbocodium versicolor in the laboratory

Authors: Kulikova L. V., Shilova I. V., Serova L. A., Kashin A. S.

Для семи ценопопуляций Bulbocodium versicolor (Ker-Gawl.) Spreng. из Красноармейского, Татищевского, Энгельсского, Ровенского, Саратовского и Балашовского р-нов Саратовской обл. и Жирновского р-на Волгоградской обл. определены: семенная продуктивность, масса 1000 шт. семян, всхожесть семян в лабораторных условиях. Потенциальная продуктивность одного плода составила 16 − 27 семязачатков. Реальная продуктивность достигала 61 − 95 %, или 11 − 24 семени в плоде. Масса 1000 шт. семян колебалась от 5.43 до 8.74 г. Семена двух образцов не проросли.

Features of seed germination of Prunella grandiflora (L.) Scholl. in vitro

Authors: Ivanova E. V., Petrova N. A., Demochko Y. A., Shilova I. V.

Results the data of laboratory studies of seed germination characteristics of Prunella grandiflora. Seeds was collected on extending 12 years. Highest index of seed germination was fixed for fresh seeds at indoor temperature. Stratification at low temperature and hormonal stimulation of fresh seeds produced no positive results.

Features seed germination of Asparagus officinalis L. in vitro

Authors: Gladilina T. Y., Ivanova E. V., Demochko Y. A., Shilova I. V.

The information about laboratory education of seed germination features   of Asparagus officinalis L. is given. Seeds collected from plants collection.

Introduction and reproduction of the genus Heuchera in Bashkortostan

Authors: Reut A. A., Mironova L. N.

Work is devoted to the study of phenological rhythm and seed breeding six species Heuchera L. It is shown that the highest percentage of germination was observed in H. pubescens, H. rubescens – by 80% and H. villosa – 70%, the lowest – in H. chlo-rantha – 6%. The positive responsiveness H. chlorantha, H. parvifolia, H. pubescens, H. villosa processing plant growth regulators.

Features of seed germination of two species Agastache (Lamiaceae Lindl.) under laboratory conditions

Authors: Demochko Y. A., Ivanova E. V., Shilova I. V., Kostetsky O. V.

The article presents the results of the laboratory experiments on seed germination of two species of the genus Agastache J. Clayton ex Gronov. obtained from the collection of plants in the Botanical garden of the Saratov State University.

 

Features of seed reproduction of Fritillaria ruthenica Wikstr. in natural populations

Authors: Leonova A. A., Shilova I. V., Petrova N. A., Kostetsky O. V.

It was found that real seed productivity of Fritillaria ruthenica Wikstr. in natural populations of the Saratov region is up to 82%. Seed germination under laboratory conditions is rather high (93–100%), however, the damaging effect of phytophagous insects has a negative impact on seed regeneration in some populations.