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Seedling Vigor of Open‐Pollination Progenies of Intra‐ and Inter‐Source Crosses of Birdsfoot Trefoil, Lotus corniculatus L. 1
Author(s) -
Conje A. M.,
Carlson I. T.
Publication year - 1973
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/cropsci1973.0011183x001300030021x
Subject(s) - lotus corniculatus , seedling , biology , trefoil , hypocotyl , radicle , germination , open pollination , heterosis , germplasm , dry weight , agronomy , horticulture , botany , pollination , pollen , hybrid
Seedling vigor traits of open‐pollination seed from F 1 plants of crosses within and between two diverse germplasm sources of birdsfoot trefoil ( Lotus corniculatus L.) were studied under nonphotosynthetic conditions in a germination chamber. Parents of F 1 plants were derived from ‘Empire’ and two Russian introductions. Seedling vigor (as measured by dry weight, hypocotyl length, radicle length, and total seedling length) was positively associated with seed size (r values ranged from 0.47 to 0.87). Progenies of crosses between the Empire and Russian sources exhibited a 5% increase in hypocotyl length at 7 days when compared with the average of progenies of intrasource crosses. Heterosis was not manitested for radicle length or seedling dry weight. Progenies of Empire crosses were superior in those two traits.