Details for: PI 499538, Medicago hybr., D 2550


Summary Data
Taxonomy:
Medicago hybr.
Top Name:
D 2550
Origin:
Collected – China
Received by NPGS:
01 Jul 1984
PI Assigned:
1985
Improvement Status:
Breeding material
Reproductive Uniformity:

Population
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Availability
FormQuantityNoteInventoryCart
Seed100 countPI 499538 88i SD
Seed available for distribution is a limited resource. The quantity of seed distributed is hopefully sufficient to conduct the intended research. If additional seed is required, the recipient is urged to grow and reproduce the seed. Repeated requests for seed of the same accession will not be honored.
  
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Core Passport Data
Taxonomy:
Medicago hybr.
Top Name:
D 2550
Origin:
Collected – China
Received by NPGS:
01 Jul 1984
PI Assigned:
1985
Improvement Status:
Breeding material
Reproductive Uniformity:

Population
Form Received:
Seed
Life Form:
Perennial
Life Cycle:
Perennial
Source History
Collected
01 August 1980.
China
Comment: Collector obtained material from College of Agriculture and Animal Husbandry, Huhehot, Nei Monggol, China. Received through the 1980 U.S. Plant Germplasm Team to Peoples Republic of China. (PI 193)
Collector(s):
Developed
PRE 01 July 1984.
Nei Mongol Zizhiqu, China

Developer(s):
Accession Names and Identifiers
D 2550
Type: Collector identifier

DRD 0780
Type: Exploration identifier
Group: PEO-EXPLORATIONS
Exploration ID links

Narrative
Experimental plots, originally from western Inner Mongolia. Plants yellow-flowered derivatives in F6 or F7 generation. Used to breed for cold hardiness. (Plant Inventory Vol. No. 193)
Medicago hybr.
Genus:
Medicago
Family:
Fabaceae (alt. Leguminosae)
Subfamily:
Faboideae
Tribe:
Trifolieae
Nomen number:

300354
Comment:
interim designation used in GRIN for Medicago hybrids which lack an acceptable binomial
Verified:
11/02/1990 by ARS Systematic Botanists.
Other conspecific taxa
Autonyms (not in current use), synonyms and invalid designations
Common names
Annotations
Other Links
Actions
Pathogens
Vouchers
Citations
Pedigree
Description:
M. sativa/M. sativa subsp. falcata

Observations

Phenotype Data

CategoryDescriptorDescriptionValueSample SizeStudyInventoryAvailability
CHEMICALCrude protein in the stemCrude protein in the stem14.2 ALFALFA.1989.BARNESPI 499538 88i SD
CHEMICALCrude protein in the leafCrude protein in the leaf.32.2 ALFALFA.1989.BARNESPI 499538 88i SD
CHEMICALBy pass proteinIn-vitro dry matter disappearance (ivdmd) expressed as a percent of the cultivar venal. Higher than 100% suggests low digestibility & higher by-pass protein.135 ALFALFA.PROTBYPASS.92.VOLENECPI 499538 88i SD
DISEASEAnthracnosePercent of plants resistant to Anthracnose (Colletotrichum trifolii).3.19 ALFALFA.ANTHRAC.89.ONEILLPI 499538 88i SD
DISEASEVerticillium wiltPercent of plants resistant to Verticillium wilt (Verticillium albo-atrum).21 ALFALFA.VERTWILT.89.PEADENPI 499538 88i SD
DISEASEAphanomycesPercent resistant plants to Aphanomyces eutieches.4 ALFALFA.APHAN.90.GRAUPI 499538 88i SD
DISEASESclerotinia resistancePercent resistant plants to Sclerotinia.20.5 ALFALFA.SCLEROT.90.RHODESPI 499538 88i SD
DISEASEResistance to RhizoctoniaPercent resistance to Rhizoctonia.29 ALFALFA.RHIZOC.90.VIANDPI 499538 88i SD
GROWTHFall growthFall growth evaluated by plant height on October 11-12.9 - LESS THAN OR EQUAL TO 5 CM ALFALFA.1989.BARNESPI 499538 88i SD
GROWTHCrown stem diameterDiameter of the crown stem2 - (1 = NARROW, 5 = WIDE) ALFALFA.1989.BARNESPI 499538 88i SD
GROWTHTaproot diameterDiameter of the taproot2 - (1 - <= 5MM, 5 - >= 12.5 MM) ALFALFA.1989.BARNESPI 499538 88i SD
GROWTHSecondary root diameterSecondary root diameter2 - (1 = 2-5 MM, 5 = GREATER THAN 12.5 MM) ALFALFA.1989.BARNESPI 499538 88i SD
GROWTHSeedling vigorSeedling vigor visually estimated as plant size during the fourth week after germination.6 - (1 = LEAST, 9 = MOST) ALFALFA.1989.BARNESPI 499538 88i SD
GROWTHRecovery rateRecovery rate visually estimated 2 weeks after the first spring cutting (mid July).5 - INTERMEDIATE (SARANAC) ALFALFA.1989.BARNESPI 499538 88i SD
GROWTHCrown widthWidth of the crown3 - (1 = NARROW, 5 = WIDE) ALFALFA.1989.BARNESPI 499538 88i SD
INSECTPotato LeafhopperPercent of plant foliage yellowed by Potato Leafhopper (Empoasca fabae).3.6 ALFALFA.POTLEAFHOP.93.BYERSPI 499538 88i SD
INSECTClover Root curculioPercent of plants resistant to Clover Root Curculio (Sitonia hispidulus).25.27 ALFALFA.ROOTCURC.94.BYERSPI 499538 88i SD
MORPHOLOGYSeed weight 100Weight of 100 seeds in grams.0.19 ALFALFA.SEEDWEIGHT.WRPISPI 499538 88i SD
MORPHOLOGYSeed weight 100Weight of 100 seeds in grams.0.19 ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYLeaf sizeLeaf size visually estimated on August 30.7 - (1 = LEAST, 9 = MOST) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYDepth of the crownDepth of the crown3 - (1 = SHALLOW, 5 = DEEP) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYCrown branchingBranching of the crown2 - (1 = LOW, 5 = DEEP) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYCrown bud numberNumber of crown buds2 - (1 = FEW, 5 = MANY) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYCrown originOrigin of the crown1 - MANY THIN STEMS ORIGINATE AT THE SAME NARROW POINT ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYSecondary root numberNumber of secondary roots5 - (1 = 0 TO 1, 6 = GREATER THAN OR EQUAL TO 12) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYSecondary root positionSecondary root position3 - (1 - >= 20 CM BELOW CROWN, 5 - <= 5 CM BELOW CROWN) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYFibrous root massFibrous root mass4 - (1 = NONE, 5 = MANY) ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYDeterminate taproot percentageDeterminate taproot percentage0 ALFALFA.1989.BARNESPI 499538 88i SD
MORPHOLOGYDeterminate taproot positionDeterminate taproot position0 - EQUAL TO OR GREATER THAN 20 CM BELOW CROWN ALFALFA.1989.BARNESPI 499538 88i SD
PHENOLOGYDays to maturityNumber of days between the first and second cut39 ALFALFA.1989.BARNESPI 499538 88i SD
PHENOLOGYMaturityVisual estimate of the morphological stages of development.5 - 5 MEDIUM on 1-9 scale ALFALFA.1989.BARNESPI 499538 88i SD
PRODUCTIONSeed productivitySeed productivity. coded 1-9.4 - (1 = HIGH, 9 = LOW) ALFALFA.SEEDPROD.88.PEADENPI 499538 88i SD
PRODUCTIONLeaf acid detergent fiberAcid detergent fiber of the leaf taken at maturity17.3 ALFALFA.1989.BARNESPI 499538 88i SD
PRODUCTIONLeaf neutral detergent fiberNeutral detergent fiber of leaf taken at maturity22.2 ALFALFA.1989.BARNESPI 499538 88i SD
PRODUCTIONStem acid detergent fiberAcid detergent fiber of stem taken at maturity44.9 ALFALFA.1989.BARNESPI 499538 88i SD
PRODUCTIONStem neutral detergent fiberNeutral detergent fiber of stem taken at maturity54.3 ALFALFA.1989.BARNESPI 499538 88i SD
PRODUCTIONSeedling year yieldSeedling year yield measured in grams of dry matter per plot.339.4 ALFALFA.1989.BARNESPI 499538 88i SD
PRODUCTIONStem leaf ratioStem leaf ratio2 ALFALFA.1989.BARNESPI 499538 88i SD
STRESSSalt germination - ic(50) valuSodium chloride concentration which inhibits germination of 50% of the viable seed.-0.54 ALFALFA.SALTGERM.89.RUMBPI 499538 88i SD
STRESSTolerance to salt stressThe ratio of mean regrowth amount under salt stress to that produced under non-stress conditions expressed as a proportion of the ratio for a control cultivar(s).0.979 ALFALFA.SALTSTRESS.90.SMITHPI 499538 88i SD
STRESSFrost damageFrost damage visually estimated on October 10, after a severe frost during the last week of September.1 - LEAST ALFALFA.1989.BARNESPI 499538 88i SD
STRESSWinter injuryWinter injury visually evaluated for damage and death.2 - (1 = least)(9 = most) ALFALFA.1989.BARNESPI 499538 88i SD