Flowering time of plant populations derived from crosses with the spring1 mutant.

Flowering time was scored and plants were classified for flowering time. Plants were classified as early flowering if they had ≤7 nodes at flowering or had flowered rapidly (≤28 days after germination), similar to spring1. They were classified as late flowering if they had ≥11 nodes at flowering or had not yet flowered but had ≥11 nodes, similar to Jester. They were scored as unclassified due to not falling into our two classes, or being difficult to score due to their tiny size or altered aerial architecture.a, bF2 plants were grown in six groups and scoring was terminated after 39, 46, 73, 77, 83 or 87 days.aA total of 27 plants had not yet flowered when scoring was terminated. None of the plants classified as late had flowered by 39 days. Four plants had not flowered by 87 days and had up to 25 nodes on the primary axis.bIn total 10 plants had not flowered by the time scoring was terminated.cF2 plants were grown up and scoring was terminated after 65 days. Two plants had not yet flowered and had up to 19 nodes on the primary axis.d/eScoring was terminated at 69 days.dA total of 33 plants had not yet flowered and had up to 21 nodes on the primary axis.eTwo plants had not yet flowered, one had 10 nodes and one was unscoreable due to its small size and architecture.“Test Cross” is (♂(♂spring1 x ♀Jester) x ♀Jester). Plants classified as Dead, usually died as very young seedlings. nd is not done.