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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 647963 | 'KX2-HAWAII' | Leucaena hybr. | Hawaii, United States | S9 | | | 2007 | DEVELOPED | 2007 | | | | | Cultivar | 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. | 1726037 | PI 647963 |