Details for: APG 39309, Medicago sativa L. subsp. sativa, 'QUADRELLA'

Summary Data

Taxonomy:

Medicago sativa L. subsp. sativa

Cultivar:

'QUADRELLA'

Origin:

Collected – Australia

Maintained:

Australian Pastures Genebank

Received by APG:

11 Nov 2002

Improvement Status:

Advanced Cultivar

Reproductive Uniformity:

Population

Form Received:

Seed

Backup Location:

Svalbard Global Seed Vault

Availability

Form	Quantity	Note	Inventory	Cart
Seed	200 count		BASE 39309 1990___2_____ SD

There are no images for this accession.

Core Passport Data

Taxonomy:

Medicago sativa L. subsp. sativa

Cultivar:

'QUADRELLA'

Origin:

Collected – Australia

Maintained:

Australian Pastures Genebank

Received by APG:

11 Nov 2002

Improvement Status:

Advanced Cultivar

Reproductive Uniformity:

Population

Form Received:

Seed

Source History

Collected

Australia

Donated

11 November 2002. Australia

Donator(s):

Pengelly, Bruce Australian Tropical Forages Genetic Resource Centre

01 July 2014. Australia

Donator(s):

South Australian Research and Development Institute

Accession Names and Identifiers

'QUADRELLA'

Type: Cultivar name

SA 39309

Type: Donor identifier

Group: SA

South Australian Genetic Resource Centre

ALP 1.3

Type: Priority Score

Narrative

WAR 7. LUCERNE Medicago sativa L. Variety: 'Quadrella' Application No: 1990/055 Application Received: 30 April 1990 Applicant: CSIRO Division of Tropical Crops and Pastures, and University of Queensland, both of St. Lucia, Queensland. Description as published in Plant Varieties Journal Vol 3 No 3 of September, 1990. Diagnosis This variety is distinct from all other known varieties in having the following combination of characters: a high resistance to Stemphylium vesicarium; a high resistance to Colletotrichum; a moderate resistance to Phytophthora; and a medium to erect growth habit. Varieties used for comparison 'Trifecta', being the parent and closest known variety; 'Hunter River' and 'Sequel' being standard varieties. Comparative Growing Trials Disease resistance was assessed in various glasshouse trials at the university of Queensland and CSIRO in Brisbane from 1987 to 1989,using seedlings grown in a glasshouse in a medium of peat and sand. Stemphylium resistance was assayed using the method described in: Bray, R.A., and Irwin, J.A.G. Recurrent selection for resistance to Stemphylium vesicarium within the lucern cultivars Trifecta and Sequel. Australian Journal of Experimental Agriculture 29, 1989 pp. 189-192. Morphological and yield data were obtained in field trials at Lawes 1988 and 1989. Morphological data were obtained from approximately 180 spaced plants and yield data from a trial of direct-seeded rows. Origin This variety arose from two generations of selection from 'Trifecta' of plants resistant to isolates 162 and 302 of Stemphylium vesicarium. It was bred by Dr R A Bray, CSIRO, and Dr J A G Irwin, University of Queensland, in Brisbane, between 1985 and 1987. 100 resistant seedlings were selected from an initial 1000, and were intercrossed. Half-sib maternal progenies were screened for resistance and a single resistant plant was selected from each maternal line and intercrossed. The resulting progenies were screened and 52 seedlings (each from a different half-sib family), with the highest levels of resistance, were selected for multiplication to form 'Quadrella'. Morphology - See comparison tables Morphological characters of 'Quadrella' such as stem length, time to flower and yield are not different from 'Trifecta'. 'Quadrella' can be distinguished from all other varieties by its resistance to Stemphylium vesicarium. As well as being resistant to isolates 162 and 302 used during the selection process, 'Quadrella' has a high degree of resistance to the highly virulent new isolate UQ 129. 'Quadrella' can be distinguished from 'Trifecta' in having a slightly less erect growth habit and a slightly lower resistance to Phytophthora. Table of Comparison of Lucern variety (* = existing varieties used for comparison) 'Quadrella' *'Trifecta' *'Hunter *'Sequel' River' Stemphylium RESISTANCE (score 1-9, 1 = least leaf damage) Isolate UQ 129 1.54 3.57 (3.5)1 4.14 Isolates 162 + 302 1.30 4.39 (4.3)1 5.31 GROWTH HABIT (1 = prostrate, 5 = erect) 3.23 3.50 3.13 3.67 YIELD AS % OF 'HUNTER RIVER' 105% 107% 100% 117% Colletotrichum RESISTANCE (score 1-5) 2.87 2.91 4.69 2.60 Phytophthora RESISTANCE (score 1-5) 2.68 2.36 3.92 1.59 1 'Hunter River' was not included in the resistance trial but is know to be of similar susceptibility to 'Trifecta'.

Group Note

Medicago sativa L. subsp. sativa

Genus:

Medicago

Section:

Medicago

Family:

Fabaceae (alt. Leguminosae)

Subfamily:

Faboideae

Tribe:

Trifolieae

Nomen number:

300359

Verified:

06/10/1987 by ARS Systematic Botanists.

Common names

English
alfalfa –
lucerne –
violet-flower lucerne –
French
luzerne –
German
blaue Luzerne –
Luzerne –
Japanese Rōmaji
murasaki-umagoyashi –
Portuguese
luzerna –
Spanish
mielga –
Swedish
blålusern –
Transcribed Chinese
zi mu xu –

Other conspecific taxa

Medicago sativa L. (561 active accession[s])
Medicago sativa L. nothosubsp. tunetana Murb. (12 active accession[s])
Medicago sativa L. nothosubsp. varia (Martyn) Arcang. (370 active accession[s])
Medicago sativa L. subsp. caerulea (Less. ex Ledeb.) Schmalh. (158 active accession[s])
Medicago sativa L. subsp. falcata (L.) Arcang. (261 active accession[s])
Medicago sativa L. subsp. falcata (L.) Arcang. var. falcata (L.) Doll (0 active accession[s])
Medicago sativa L. subsp. falcata (L.) Arcang. var. viscosa (Rchb.) Posp. (2 active accession[s])
Medicago sativa L. subsp. glomerata (Balb.) Rouy (30 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Heterotypic Synonym(s)

Medicago agropyretorum Vassilcz.
Medicago asiatica Sinskaya
Medicago mesopotamica Vassilcz.
Medicago praesativa Sinskaya
Medicago rivularis Vassilcz.
Medicago sogdiana Vassilcz.
Medicago transoxana Vassilcz.

Annotations