Details for: PI 647963, Leucaena hybr., 'KX2-HAWAII'

Summary Data

Taxonomy:

Leucaena hybr.

Cultivar:

'KX2-HAWAII'

Origin:

Developed – Hawaii, United States

Maintained:

Plant Genetic Resources Conservation Unit (S9)

Received by NPGS:

12 Apr 2007

Improvement Status:

Cultivar

Reproductive Uniformity:

Population

Form Received:

Seed

Life Form:

Perennial

Life Cycle:

Perennial

Backup Location:

National Laboratory for Genetic Resources Preservation

Availability

Form	Quantity	Note	Inventory	Cart
Seed	25 count		PI 647963 01 SD

There are no images for this accession.

Core Passport Data

Taxonomy:

Leucaena hybr.

Cultivar:

'KX2-HAWAII'

Origin:

Developed – Hawaii, United States

Maintained:

Plant Genetic Resources Conservation Unit (S9)

Received by NPGS:

12 Apr 2007

Improvement Status:

Cultivar

Reproductive Uniformity:

Population

Form Received:

Seed

Life Form:

Perennial

Life Cycle:

Perennial

Source History

Developed

2007.
Hawaii, United States

Developer(s):

Brewbaker, James L., University of Hawaii

Accession Names and Identifiers

'KX2-HAWAII'

Type: Cultivar name

KX2

Type: Developer identifier

Narrative

Open pollinated population representing 5 cycles of recurrent selection from hybrids made in 1976. KX2 hybrids were extremely vigorous vegetatively, with the large leaves and smaller leaflets of the pallida parent. For each of the 5 cycles of selection, ~ 1500 trees were planted and coppiced repeatedly to allow selection based on the following major criteria: psyllid tolerance, forage regrowth vigor and self-incompatibility. Seediness is an undesirable trait associated with the highly self-fertile common variety of L. leucocephala, and led to our emphasis on self-sterility. Approximately 120 trees were selected each cycle to serve as seed parents, and panmixia can be assumed. Seeds of cycle 3 of selection were distributed internationally after 1991 to confirm the durability of psyllid tolerance. Seed production of the selected progenies from cycle 5 was completed in 2003 and current seed is derived from two seed orchards at the Waimanalo Research Station on Oahu, Hawaii.

Leucaena hybr.

Genus:

Leucaena

Family:

Fabaceae (alt. Leguminosae)

Subfamily:

Caesalpinioideae

Tribe:

Mimoseae

Nomen number:

315884

Comment:

interim designation used in GRIN for Leucaena hybrids which lack an acceptable binomial

Verified:

01/17/1991 by ARS Systematic Botanists.

Other conspecific taxa

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

Common names

Annotations