Report of the Available Breeding Lines Committee
1998 NAAIC Meeting, Bozeman, MT

Charlie Brummer (Chair), Stephanie Greene, JoAnn Lamb, and Ian Ray

1.The germplasm releases registered in Crop Science since the 1994 meeting are presented in Table 1. This information will be input into GRIN, as well as information on registered cultivars.

2.Cultivars not registered in Crop Science are neither placed into the germplasm system nor noted in GRIN. Preserving all cultivars may not be necessary, but some non-registered cultivars may be valuable and should be entered into the system after their commercially productive life. Anyone who thinks that some cultivars are particularly worthy of saving should contact the committee. Additionally, we need to develop criteria for "benchmark varieties" so that future cultivars can be preserved more effectively.

3.The committee encourages breeders to release breeding lines and to register them with Crop Science. All lines do not necessarily need to go into GRIN, so prioritized lists of breeding lines would be optimal. Phenotypic marker stocks are particularly useful for breeding and genetic studies but few are currently available. Lines do not need a Crop Science registration to be deposited in GRIN. Stephanie Greene would like to visit long running, public alfalfa breeding programs with large germplasm repositories?primarily Minnesota, California, and Cornell?to go through the collections and add relevant material to GRIN.

Table 1.Germplasm releases subsequent to the 1994 report of the Committee on Available Breeding Lines.

Germplasm PI No. Trait(s) selected Source Germplasm Selection Method Selection Location Remarks and Reference

UCRD-A(H)2 591437 Small (L) and large (H) receptacle diameter (RD) 'CUF 101'(A)
'Team' (B)
'Vernal' (C) Two cycles of phenotypic recurrent selection Greenhouse, Davis, CA Seed yield of (L) germplasm averaged more seed than (H) populations due to production of more small seeds. No data on forage yield or disease and insect resistances are available.
Teuber and Green. 1996. CS 36:1420.

UCRD-A(L)2 591436

UCRD-B(H)2 591439

UCRD-B(L)2 591438

UCRD-C(H)2 591440

UCRD-C(L)2 591442

UCDS-A(H)2 593250 Low (L) and high (H) seed yield (S) 'CUF 101' (A)
'Team' (B)
'Vernal' (C) Two cycles of phenotypic recurrent selection University of California, Davis Field Research Facility (UCD) or the West Side Field Station in Five Points, CA (UCWS) Considerable G x E occurred between several of the high-low germplasms, due to inability to improve seed yield in Prosser, WA when selection was done in Five Points, CA. No data on forage yield or disease and insect resistances are available.
Teuber and Green. 1996. CS 36:142.

UCDS-A(L)2 593249

UCDS-B(H)2 591450

UCDS-B(L)2 593253

UCDS-C(H)2 591451

UCDS-C(L)2 593254

UCWSS-A(H)2 593251

UCWSS-A(L)2 593252

UCWSS-B(H)2 591448

UCWSS-B(L)2 591447

UCWSS-C(H)2 591449

UCWSS-C(L)2 593255

UCDS/P-A(H)2 591445 Low (L) and high (H) seeds per pod (S/P) 'CUF 101' (A)
'Team' (B)
'Vernal' (C) Two cycles of phenotypic recurrent selection University of California, Davis Field Research Facility (UCD) or the West Side Field Station in Five Points, CA (UCWS) High selections produced more seeds per pod than low selections at both Five Points, CA and Prosser, WA, except UCWSS/P-C(L)2 and -C(H)2 which did not differ at Prosser. No data on forage yield or disease and insect resistances are available.
Teuber and Green. 1996. CS 36:1422.

UCDS/P-A(L)2 593245

UCDS/P-B(H)2 591446

UCDS/P-B(L)2 593246

UCDS/P-C(H)2 593248

UCDS/P-C(L)2 593247

UCWSS/P-A(H)2 591442

UCWSS/P-A(L)2 591441

UCWSS/P-B(H)2 591443

UCWSS/P-B(L)2 593243

UCWSS/P-C(H)2 591444

UCWSS/P-C(L)2 593244

MSR 590999 Resistance to Sclerotina trifoliorum Eriks. 'Delta' Phenotypic recurrent selection Laboratory,
USDA ARS and Miss. Agric. and For. Exp. Stn. MSR had greater survival of plants in field experiments and in lab screenings then all entries in the Southern Regional Alfalfa Variety Tests, 1992-1995. Yields of MSR were superior to several elite cultivars under severe disease conditions.
Pratt and Rowe. 1996. CS 36:821-822

UCNP-A32 591458 High forage yield and nitrogen concentration 'African' (A)
'Hairy Peruvian' (HP)
'Moapa 69' (M69) Two cycles of phenotypic recurrent selection with independent culling (A, HP) and differing pop. sizes (M69) Greenhouse, Davis, CA Increases in forage N and forage quality were generally observed in these populations. Forage yields were greater for some populations (-A3, -HP3) and less for other populations (-M69-3; -M69-2)relative to the source germplasm. Teuber et al. 1996. CS 36:473.

UCNP-HP32 591459

UCNP-M69-32 591460

UCNP M69(N2+NO3)2 591461

UCNP-M69-33 591462

UCNF-M69(I-0)2 591463 High forage yield and nitrogen concentration 'Moapa 69' (M69) Two cycles of phenotypic recurrent selection with independent culling Agronomy and Range Science Field Research Facility, Davis, CA Selected under 0, 33, 66, or 100 kg N ha-1. Increases in dry weight and N concentration were found under greenhouse conditions.
Teuber et al. 1996. CS 36:474.

UCNF-M69(I-33)2 591464

UCNF-M69(I-66)2 591465

UCNF-M69(I-100)2 591466

UCSAR-ET(L)2 591467 Ease of floret tripping 'Saranac' (SAR)
'CUF101' (CUF) Two cycles of phenotypic recurrent selection Greenhouse, Davis, CA Plants selected for easy-to-trip (L) required less force and for hard-to-trip (H) more force fro tripping under both field and greenhouse conditions. Seed and forage yields and pest resistances have not been determined.
Knapp et al. 1996. CS 36:475.

UCSAR-ET(H)2 591468

UCCUF-ET(L)2 591469

UCCUF-ET(L)2 591470

UCNE-A(H)2 591454 Nectar volume 'CUF 101' (A)
'Team' (B)
'Vernal' (C) Two cycles of phenotypic recurrent selection Greenhouse, Davis, CA Nectar volumes of low and high populations were significantly from the respective cultivars in both field and greenhouse evaluations.
Teuber and Green. 1996. CS 36:475-476.

UCNE-A(L)2 591453

UCNE-B(H)2 591452

UCNE-B(L)2 591455

UCNE-C(H)2 591457

UCNE-C(L)2 591456

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Table 1.Germplasm releases subsequent to the 1994 report of the Committee on Available Breeding Lines.
Germplasm	PI No.	Trait(s) selected	Source Germplasm	Selection Method	Selection Location	Remarks and Reference
UCRD-A(H)2	591437	Small (L) and large (H) receptacle diameter (RD)	'CUF 101'(A) 'Team' (B) 'Vernal' (C)	Two cycles of phenotypic recurrent selection	Greenhouse, Davis, CA	Seed yield of (L) germplasm averaged more seed than (H) populations due to production of more small seeds. No data on forage yield or disease and insect resistances are available. Teuber and Green. 1996. CS 36:1420.
UCRD-A(L)2	591436
UCRD-B(H)2	591439
UCRD-B(L)2	591438
UCRD-C(H)2	591440
UCRD-C(L)2	591442
UCDS-A(H)2	593250	Low (L) and high (H) seed yield (S)	'CUF 101' (A) 'Team' (B) 'Vernal' (C)	Two cycles of phenotypic recurrent selection	University of California, Davis Field Research Facility (UCD) or the West Side Field Station in Five Points, CA (UCWS)	Considerable G x E occurred between several of the high-low germplasms, due to inability to improve seed yield in Prosser, WA when selection was done in Five Points, CA. No data on forage yield or disease and insect resistances are available. Teuber and Green. 1996. CS 36:142.
UCDS-A(L)2	593249
UCDS-B(H)2	591450
UCDS-B(L)2	593253
UCDS-C(H)2	591451
UCDS-C(L)2	593254
UCWSS-A(H)2	593251
UCWSS-A(L)2	593252
UCWSS-B(H)2	591448
UCWSS-B(L)2	591447
UCWSS-C(H)2	591449
UCWSS-C(L)2	593255
UCDS/P-A(H)2	591445	Low (L) and high (H) seeds per pod (S/P)	'CUF 101' (A) 'Team' (B) 'Vernal' (C)	Two cycles of phenotypic recurrent selection	University of California, Davis Field Research Facility (UCD) or the West Side Field Station in Five Points, CA (UCWS)	High selections produced more seeds per pod than low selections at both Five Points, CA and Prosser, WA, except UCWSS/P-C(L)2 and -C(H)2 which did not differ at Prosser. No data on forage yield or disease and insect resistances are available. Teuber and Green. 1996. CS 36:1422.
UCDS/P-A(L)2	593245
UCDS/P-B(H)2	591446
UCDS/P-B(L)2	593246
UCDS/P-C(H)2	593248
UCDS/P-C(L)2	593247
UCWSS/P-A(H)2	591442
UCWSS/P-A(L)2	591441
UCWSS/P-B(H)2	591443
UCWSS/P-B(L)2	593243
UCWSS/P-C(H)2	591444
UCWSS/P-C(L)2	593244
MSR	590999	Resistance to Sclerotina trifoliorum Eriks.	'Delta'	Phenotypic recurrent selection	Laboratory, USDA ARS and Miss. Agric. and For. Exp. Stn.	MSR had greater survival of plants in field experiments and in lab screenings then all entries in the Southern Regional Alfalfa Variety Tests, 1992-1995. Yields of MSR were superior to several elite cultivars under severe disease conditions. Pratt and Rowe. 1996. CS 36:821-822
UCNP-A32	591458	High forage yield and nitrogen concentration	'African' (A) 'Hairy Peruvian' (HP) 'Moapa 69' (M69)	Two cycles of phenotypic recurrent selection with independent culling (A, HP) and differing pop. sizes (M69)	Greenhouse, Davis, CA	Increases in forage N and forage quality were generally observed in these populations. Forage yields were greater for some populations (-A3, -HP3) and less for other populations (-M69-3; -M69-2)relative to the source germplasm. Teuber et al. 1996. CS 36:473.
UCNP-HP32	591459
UCNP-M69-32	591460
UCNP M69(N2+NO3)2	591461
UCNP-M69-33	591462
UCNF-M69(I-0)2	591463	High forage yield and nitrogen concentration	'Moapa 69' (M69)	Two cycles of phenotypic recurrent selection with independent culling	Agronomy and Range Science Field Research Facility, Davis, CA	Selected under 0, 33, 66, or 100 kg N ha-1. Increases in dry weight and N concentration were found under greenhouse conditions. Teuber et al. 1996. CS 36:474.
UCNF-M69(I-33)2	591464
UCNF-M69(I-66)2	591465
UCNF-M69(I-100)2	591466
UCSAR-ET(L)2	591467	Ease of floret tripping	'Saranac' (SAR) 'CUF101' (CUF)	Two cycles of phenotypic recurrent selection	Greenhouse, Davis, CA	Plants selected for easy-to-trip (L) required less force and for hard-to-trip (H) more force fro tripping under both field and greenhouse conditions. Seed and forage yields and pest resistances have not been determined. Knapp et al. 1996. CS 36:475.
UCSAR-ET(H)2	591468
UCCUF-ET(L)2	591469
UCCUF-ET(L)2	591470
UCNE-A(H)2	591454	Nectar volume	'CUF 101' (A) 'Team' (B) 'Vernal' (C)	Two cycles of phenotypic recurrent selection	Greenhouse, Davis, CA	Nectar volumes of low and high populations were significantly from the respective cultivars in both field and greenhouse evaluations. Teuber and Green. 1996. CS 36:475-476.
UCNE-A(L)2	591453
UCNE-B(H)2	591452
UCNE-B(L)2	591455
UCNE-C(H)2	591457
UCNE-C(L)2	591456