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Reduction of Self‐pollination by High Night Temperature in Naturally Self‐fertilized Poa Annua L 1
Author(s) -
Hovin Arne W.
Publication year - 1958
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1958.00021962005000070006x
Subject(s) - panicle , pollination , poa annua , stamen , biology , agronomy , horticulture , greenhouse , botany , self pollination , hybrid , poaceae , pollen
Synopsis High night temperature arrested the normal development of Poa annua anthers without noticeably damaging the pistillate organs when plants with emerging panicles were transferred to a glasshouse with controlled night temperature. Pistillate panicles emerged 11 to 19 days after initiation of a treatment characterized by 29° C. maximum day temperature and 20° C. minimum night temperature. Following controlled pollination, approximately 96% of 274 seeds resulted in definite F 1 hybrids in this naturally self‐pollinated species.