Pollen germination and pollen tube growth following self-pollination and intra- and interspecific pollination of Medicago species

Autor:	E. L. Sorensen, N. Sangduen, George H. Liang
Rok vydání:	1983
Předmět:	Pollination food and beverages Plant Science Interspecific competition Horticulture Biology medicine.disease_cause Intraspecific competition Sexual reproduction Germination Pollen Self-pollination Botany otorhinolaryngologic diseases Genetics medicine Pollen tube Agronomy and Crop Science
Zdroj:	Euphytica. 32:527-534
ISSN:	1573-5060 0014-2336
Popis:	Pollen germination and pollen tube growth after self- and intra- and interspecific pollinations of annual [M. scutellata (L.) Mill., M. disciformis DC., and M. rigidula (L.) All.] and perennial (M. sativa L.) Medicago species were studied using a Carl Zeiss microscope with a fluorescence filter attachment. Self-pollination of self-fertile annual and intraspecific pollination of cross-fertile perennials were characterized by high pollen germination and rapid normal pollen tube growth. In contrast pollen germination percentages were very low and many pollen tube growth abnormalities occurred following interspecific pollination and self-pollination of self-sterile plants. The time period from pollination to fertilization for interspecific crosses was about double that following self-pollination of the annual species. However, fertilization occurred frequently following interspecific pollinations. Much of the sterility was due to factor(s) operating after fertilization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5611028a16b1c50f41aaee1a6272001a https://doi.org/10.1007/bf00021465 Zobrazit plný text záznamu Full text from SpringerLink