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Hordeum depressum (Scribn. et Smith) Rydb. × Hordeum compressum Griseb. Hybrids 1
Author(s) -
Liu Lii Chyuan,
Schooler A. B.
Publication year - 1963
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/cropsci1963.0011183x000300060005x
Subject(s) - library science , hordeum vulgare , state (computer science) , biology , botany , mathematics , computer science , algorithm , poaceae
Lii Chyuan Liu and A. B. Schooler CULTIVATED barley varieties are susceptible to the spot blotch disease incited by the organism, Helminthosporium sativum P.K. and B. Therefore, a large number of the wild Hordeum species were tested in 1956 and 1957 with Helminthosporium sativum to determine their reaction to the spot blotch disease. These tests indicated that a few of the wild Hordeum species; such as, H. compressum, H. pusillum Nutt, H. hexaploidum Covas, and H. bulbosum Linn, were highly resistant. In view of the above findings, interspecific crosses among the wild species and between the wild species and hybrids of the wild species with H. vulgare Linn, have been attempted (5). This study was conducted in an attempt to develop a wild barley hybrid between H. depressum X H. compressum. Further interest in connection with this study would be to determine whether this hybrid will cross readily with H. vulgare with the potential of transferring spot blotch resistance to commercial varieties. Work of this nature has been previously reported by Schooler (5 ) . H. depressum has been crossed with H. vulgare (2). However, the Fx plants lacked vigor, failed to set seed and finally died. H. compressum will not cross directly with H. vulgare.