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NALDC Record Details:

Breeding peach for narrow leaf width

Permanent URL:
http://handle.nal.usda.gov/10113/48392
File:
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Abstract:
Mature peach leaves are typically about 4 x 16 cm, with a width/length ratio of about 25%. A narrow leaf seedling, selected by Wayne Sherman (Univ. of Florida, Gainesville), was hybridized at USDA-Byron with adapted commercial varieties. Early generation hybrids produced small, irregular-shaped fruit. After 5 generations, current selections are approaching commercial fruit standards in size, color, firmness, and attractiveness. Narrow-leaf trees are often noticeably more open than standard trees. This leaf type may be useful in standard- or high-density plantings to enhance spray penetration, to speed drying of wet foliage to reduce disease, to improve light penetration and photosynthetic efficiency for greater fruit size and red color, and to make the fruit more visible to speed picking. Inheritance studies indicate that the narrow-leaf character is at least partially dominant and is expressed in some F1 seedlings of crosses with wild-type parents. The exact inheritance remains unclear as the ratios obtained to date do not fit common inheritance patterns. Progeny vary in leaf width with ratios of width/length generally ranging from 10-25%. The most extreme seedling has leaves up to 28 cm long and 1 cm wide, and although it is not fruitful, it may have ornamental value.
Author(s):
Okie, W.R. , Scorza, Ralph
Note:
20121213 20130104 00000000
Source:
Acta horticulturae 2002 Nov., no. 592 (1)
Language:
English
Year:
2002
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.