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Reproductive Allocation on Branches of Virginia-Type Peanut Cultivars Bred for Yield in North Carolina

^a A.U. Rehman, 602, 70-Parkwood Village Dr., North York M3A 2X7 ON, Canada
^b Dep. of Crop Science, North Carolina State Univ., Raleigh, NC 27695-7620

View larger version (28K): [in a new window]   Fig. 1. The relationship of (A) yield, (B) reproductive-to-vegetative ratio (RVR) of n + 2 branch number, and (C) RVR of n + 1 branch number to the maximum number of breeding cycles of hybridization and selection back to an indigenous peanut line. Symbols represent genotype means across year and location (n = 8)

View larger version (26K): [in a new window]   Fig. 2. The relationship of peanut reproductive-to-vegetative ratio for dry weight of the (A) total stem, (B) cotyledonary branch, and (C) n + 1 branch to the maximum number of breeding cycles of hybridization and selection back to an indigenous peanut line. Leaves were not included in the vegetative DW. Symbols represent genotype means across year and location (n = 8)

View larger version (30K): [in a new window]   Fig. 3. The relationship between peanut reproductive-to-vegetative ratio for dry weight of the (A) n + 1 branch number, (B) n + 1 branch DW, and (C) total stem DW to yield. Leaves were not included in the vegetative DW. Symbols represent breeding cycle (maximum breeding cycles of hybridization and selection back to and indigenous peanut line) means across year and location (n = 8, 16, 24, 24, and 8 for BC = 0, 2, 3, 4, and 5, respectively)

View larger version (26K): [in a new window]   Fig. 4. The relationship between peanut reproductive-to-vegetative ratio for dry weight (DW) of the (A) n + 1 branch number, (B) cotyledonary branch DW, (C) n + 1 branch DW, and (D) total stem DW to year-of-cultivar release. Leaves were not included in the vegetative DW. Symbols represent year-of-cultivar release means across year and location

View larger version (29K): [in a new window]   Fig. 5. The relationship between peanut reproductive-to-vegetative ratio (RVR) for dry weight of the (A) cotyledonary branch DW, (B) n + 1 branch DW, and (C) total stem DW to RVR for n + 1 branch number. Leaves were not included in the vegetative DW. Symbols represent genotype means across year and location