Premium
Intra‐ and Intervariety Crosses of Medicago sativa L. and Medicago falcata L. 1
Author(s) -
Sriwatanapongse Sutat,
Wilsie C. P.
Publication year - 1968
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/cropsci1968.0011183x000800040021x
Subject(s) - biology , heterosis , medicago sativa , interspecific competition , medicago , interspecific hybridization , botany , agronomy , hybrid , genetics , gene
Interspecific, intervariety, and intravariety crosses in alfalfa were compared for expression of heterosis. In spaced plantings, highest yields were obtained from interspecific crosses, followed by inter‐variety and finally by intravariety crosses. Variability within progenies was increased through hybridization, unrelated parents having the most effect. The importance of genetic diversity in parents as a determinero f heterosis is considered.