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Registration of KS206 Alfalfa Germplasm with High in Vitro Regeneration of Plants
Author(s) -
Sorensen E. L.,
Liu H.,
Wan Y.,
Liang G. H.
Publication year - 1989
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/cropsci1989.0011183x002900060070x
Subject(s) - germplasm , crop , library science , biology , horticulture , computer science , agronomy
'SCOTTY' (Reg. no. 747) (PI 469294) soft red winter wheat (Triticum aestivum L.) was developed at the Illinois Agricultural Experiment Station in cooperation with USDA-ARS and released in 1982. Scotty originated from the cross of a Virginia line designated Va. 66-54-10 with 'Arthur'. The parentage of Va. 66-54-10 is 'Vahart'/'Frondosa'//Vahart/ CI12658/3/'Asosan'/4/'Norin 10'/'Brevor'/5/CI 13351. Scotty was developed using a combination of the bulk and pedigree method with the F, and F2 generations grown in bulk without selection and with individual plant selection in the F3 and F4. Original breeder seed originated from the increase of a single-plant row selected in the F5. Scotty has been tested in performance and disease nurseries at Urbana, IL since 1977, in drill plots at several locations in Illinois since 1978, and in the Uniform Eastern Soft Red Winter Wheat Nursery from 1979 to 1982. Soft wheat quality evaluations of Scotty were made by the USD A Soft Wheat Quality Laboratory at Wooster, OH. Scotty was designated IL 72-2218-1 during development and testing prior to release. Scotty is an awnleted, white-glumed cultivar with moderately stiff straw and medium maturity. Compared to Arthur in Illinois tests, Scotty has been 20% higher yielding, about 2% lower in test weight, less susceptible to lodging, and similar in winter hardiness. Kernel weight of Scotty is very similar to that of Arthur with an average weight of 34 mg. Milling and baking characteristics of Scotty are rated good to excellent for soft red winter wheat commercial use. The coleoptiles of Scotty are purple and the stems and auricles often exhibit a purple color due to anthocyanin pigment. The spikes are lax, tapered, awnleted, and yellow at maturity. Glumes are long and medium wide with rounded shoulders and obtuse beaks. Kernel shape is ovate, kernel brush is short and not collared and the kernel cheek is rounded. Scotty is resistant to soil-borne mosaic virus, moderately susceptible to barley yellow dwarf virus, and susceptible to prevalent biotypes of the Hessian fly, Mayetiola destructor (Say). It has been resistant in Illinois to Erysiphe graminis DC f. sp. tritici E. Marchal and to Puccinia recondita Rob. ex Desm. f. sp. tritici but susceptible to P. graminis Pers, f. sp. tritici Eriks. and Henn. The generation sequence of seed production is breeder, foundation, registered and certified. Scotty is protected under the Plant Variety Protection Act, Public Law 91-577, and Title V of the Federal Seed Act. Breeder seed is maintained by the Illinois Agricultural Experiment Station, Urbana, IL 61801.