Purpose. The objective of this study was to evaluate the morphological parameters of Lycium spp. seeds from the collections in M. M. Hryshko National Botanical Garden (NBS) NAS of Ukraine. Methods. Cultivars and varieties of three Lycium species (Lycium barbarum, L. chinense, L. truncatum) were studied in the period from 2016 till 2019. The following morphometric measurments were conducted: seeds weight, seeds length, seeds width and index of seeds shape. Basic statistical analyses were performed using PAST 2.17. Hierarchical cluster analyses of similarity between genotypes were computed on the basis of the Bray-Curtis similarity index. Correlation between traits was determined using the Pearson correlation coefficient. Results. Cultivars and varieties of different species of Lycium varied in weight, shape, and size of seeds. Seed weight varied from 0.54 to 3.54 mg, seed length from 1.90 to 3.06 mm, seed width from 1.43 to 2.53 mm. The shape indexes of seeds were found ranging from 0.73 to 0.80. The analysis of coefficient of variation showed the difference of variability in morphometric characteristics between some Lycium spp. cultivars and varieties. The most variable features: seeds weight (8.51–28.22%) and seeds length (5.07–24.81%) are important parameters for selection. The use of cluster analysis made it possible to establish the similarity between the species of the studied Lycium species. Conclusions. Diagnostic signs by seed morphometry for differentiation of Lycium species were revealed. The analysis of coefficient of variation showed the difference of variability in morphometric characteristics between some Lycium cultivars and varieties. The most variable characteristics of the studied genotypes were seed weight and length, which are important parameters for selection because they determine the pulp content and number of seeds, as well as the ratio of these parameters between them. It is through variability that promising varieties with low seed weight and length can be selected, Due to securing them later vegetatively.

Purpose. The objective of this study was to evaluate the morphological parameters of Lycium spp. seeds from the collections in M. M. Hryshko National Botanical Garden (NBS) NAS of Ukraine.Methods. Cultivars and varieties of three Lycium species (Lycium barbarum, L. chinense, L. truncatum) were studied in the period from 2016 till 2019. The following morphometric measurments were conducted: seeds weight, seeds length, seeds width and index of seeds shape. Basic statistical analyses were performed using PAST 2.17. Hierarchical cluster analyses of similarity between genotypes were computed on the basis of the Bray-Curtis similarity index. Correlation between traits was determined using the Pearson correlation coefficient.Results. Cultivars and varieties of different species of Lycium varied in weight, shape, and size of seeds. Seed weight varied from 0.54 to 3.54 mg, seed length from 1.90 to 3.06 mm, seed width from 1.43 to 2.53 mm. The shape indexes of seeds were found ranging from 0.73 to 0.80. The analysis of coefficient of variation showed the difference of variability in morphometric characteristics between some Lycium spp. cultivars and varieties. The most variable features: seeds weight (8.51–28.22%) and seeds length (5.07–24.81%) are important parameters for selection. The use of cluster analysis made it possible to establish the similarity between the species of the studied Lycium species.Conclusions. Diagnostic signs by seed morphometry for differentiation of Lycium species were revealed. The analysis of coefficient of variation showed the difference of variability in morphometric characteristics between some Lycium cultivars and varieties. The most variable characteristics of the studied genotypes were seed weight and length, which are important parameters for selection because they determine the pulp content and number of seeds, as well as the ratio of these parameters between them. It is through variability that promising varieties with low seed weight and length can be selected, Due to securing them later vegetatively. | Мета. Оцінити морфометричні показники насіння Lycium spp. колекції Національного ботанічного саду імені М. М. Гришка (НБС) НАН України.Методи. Упродовж 2016–2019 рр. досліджено 21 генотип (10 сортів і 11 форм) трьох видів (Lycium barbarum, L. chinense, L. truncatum). Установлено морфометричні показники насіння (маса, довжина, ширина та індекс форми). Статистичний аналіз виконували за допомогою PAST 2.17. Ієрархічний кластерний аналіз подібності генотипів здійснено за індексом подібності Брей-Кертіса. Наявніть зв’язків між параметрами встановлювали за коефіцієнтом кореляції Пірсона.Результати. Сорти та форми різних видів рослин Lycium варіювали за масою, розміром та формою насіння. Морфометричні параметри насіння були такими: маса – від 0,54 до 3,54 мг, довжина – від 1,90 до 3,06 мм, ширина – від 1,43 до 2,53 мм. Величина індексу форми насіння становила від 0,73 до 0,80. Аналіз коефіцієнта варіації показав різну мінливість морфометричних характеристик сортів та форм різних видів Lycium. Наймінливішою є маса насіння (8,51–28,22%) та його довжина (5,07–24,81%), які є важливими параметрами для селекції. Використання кластерного аналізу дало змогу встановити генетичні зв’язки між сортами й формами Lycium та розподілити їх у два основних кластери.Висновки. Виявлено діагностичні ознаки морфометричних параметрів насіння для ідентифікації видів Lycium. Аналіз коефіцієнта варіації показав мінливість морфомет­ричних характеристик між деякими сортами та формами Lycium. Наймінливішими параметрами досліджуваних генотипів були маса та довжина насіння. Останні є важливими для селекції, оскільки від них залежить уміст м’якушу та кількість насіння, а також співвідношення цих параметрів між ними. Завдяки мінливості можна дібрати перспективні сорти з невеликими масою та довжиною насіння, закріпивши їх потім вегетативно.

Purpose. The objective of this study was to evaluate the morphological parameters of Lycium spp. seeds from the collections in M. M. Hryshko National Botanical Garden (NBS) NAS of Ukraine. Methods. Cultivars and varieties of three Lycium species (Lycium barbarum, L. chinense, L. truncatum) were studied in the period from 2016 till 2019. The following morphometric measurments were conducted: seeds weight, seeds length, seeds width and index of seeds shape. Basic statistical analyses were performed using PAST 2.17. Hierarchical cluster analyses of similarity between genotypes were computed on the basis of the Bray-Curtis similarity index. Correlation between traits was determined using the Pearson correlation coefficient. Results. Cultivars and varieties of different species of Lycium varied in weight, shape, and size of seeds. Seed weight varied from 0.54 to 3.54 mg, seed length from 1.90 to 3.06 mm, seed width from 1.43 to 2.53 mm. The shape indexes of seeds were found ranging from 0.73 to 0.80. The analysis of coefficient of variation showed the difference of variability in morphometric characteristics between some Lycium spp. cultivars and varieties. The most variable features: seeds weight (8.51–28.22%) and seeds length (5.07–24.81%) are important parameters for selection. The use of cluster analysis made it possible to establish the similarity between the species of the studied Lycium species. Conclusions. Diagnostic signs by seed morphometry for differentiation of Lycium species were revealed. The analysis of coefficient of variation showed the difference of variability in morphometric characteristics between some Lycium cultivars and varieties. The most variable characteristics of the studied genotypes were seed weight and length, which are important parameters for selection because they determine the pulp content and number of seeds, as well as the ratio of these parameters between them. It is through variability that promising varieties with low seed weight and length can be selected, Due to securing them later vegetatively.