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REPRODUCTIVE BIOLOGY OF SEVERAL BROMEGRASSES (BROMUS): BREEDING SYSTEM, PATTERN OF FRUIT MATURATION, AND SEED SET
Author(s) -
McKone Mark J.
Publication year - 1985
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1985.tb08390.x
Subject(s) - biology , bromus , bromus inermis , bromus tectorum , botany , agronomy , poaceae , invasive species
Five species of Bromus were tested for self‐fertility when bagged. Bromus inermis was self‐incompatible. Bromus tectorum, B. kalmii, B. ciliatus , and B. latiglumis were capable of self‐fertilization. Further evidence from flowering behavior suggested that B. tectorum almost always self‐pollinated and that the remaining self‐fertile species sometimes outcrossed. Florets in different positions on a spikelet varied in the proportion that set seed. Open‐pollinated B. inermis plants had lower seed set than the self‐fertile species, in agreement with the pattern in a variety of hermaphroditic plants.