title: Колекційний фонд рослин роду Nigella L. у Національному ботанічному саду імені М. М. Гришка НАН України
abstract: Purpose. To justify the stages of formation, maintenance and use of a collection of various species of Nigella plants for a test of distinctness. Methods. Field (phenological observations, study of biological yield, productive properties of seeds); laboratory (determination of sowing properties of seeds); descriptive (identification of plant diversity by biological and morphological characteristics); determination of quantitative parameters of morphological and economically valuable characterist
journal: Scientific periodicals of Ukraine