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Relationship Among Seedling Height, Greenhouse Regrowth, Fall Height, and Spring Height in Medicago sativa L. 1
Author(s) -
Davis R. L.,
Buker R. J.
Publication year - 1966
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1966.0011183x000600020029x
Subject(s) - seedling , biology , medicago sativa , greenhouse , spring (device) , agronomy , horticulture , dormancy , botany , germination , mechanical engineering , engineering
Crosses of early fall dormant ✕ early fall dormant,early dormant ✕ late dormant, and late dormant ✕ late dormant clones of Medicago sativa L. were planted in greenhouse flats and subsequently transplanted into the field. Seedling height, greenhouse regrowth, fall height (regrowth), spring height (regrowth), and percent winterkill were recorded. Correlation coefficients indicated that 25 to 36% of the variation in greenhouse regrowth could be associated with seedling height. Less than 5% of the variation in fall height and spring height could be associated with seedling height. A similar relationship was noted between fall height and spring height. This relationship, along with the range of types found in any seedling class, suggested that plants with good seedling vigor and good spring recovery could be selected from the early dormant ✕ early dormant group even though the tallest plants for fall height were only about half as tall as those in the early ✕ early or late ✕ late group. The segregation in the early ✕ late and late ✕ late group suggested that winterhardy plants with good seedling vigor, good regrowth, having tall fall and spring height could be selected.