HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Tillman, B. L. Articles by Gorbet, D. W. Search for Related Content PubMed Articles by Tillman, B. L. Articles by Gorbet, D. W. Agricola Articles by Tillman, B. L. Articles by Gorbet, D. W. Related Collections Other Legumes

CULTIVARS

Registration of ‘AP-4’ Peanut

Agronomy Dep., North Florida Research and Education Center, Institute of Food and Agricultural Sciences, Univ. of Florida, 3925 Hwy. 71, Marianna, FL 32446

^* Corresponding author (btillman{at}ufl.edu).

ABSTRACT

‘AP-4’ (Reg. No. CV-106, PI 654070) peanut (Arachis hypogaea L. subsp. hypogaea var. hypogaea) cultivar was developed by the University of Florida, Florida Agricultural Experiment Station, North Florida Research and Education Center (NFREC) near Marianna, FL. Tested under the experimental designation UF03325, AP-4 was approved for release in 2007. AP-4 was developed from a cross made in 1996 between a University of Florida breeding line (88 x OL3-HO6-) and the F₁ (‘Andru 93’ x F435-HO). Lines were advanced using single seed descent in the F₂ to F₄ generations and pedigree selection in the F₅ and F₆ generations. Seed from three F₇ plants were bulked to form the line later designated UF03325. AP-4 has larger-than-average runner-type seeds and pods. The average weight of 100 sound mature kernels of AP-4 was 71 g compared with 57 g for ‘Georgia Green’ (P < 0.0001), a typical runner-type cultivar. The prostrate growth habit of AP-4 is typical of runner-type peanut cultivars. Release of AP-4 was based on its pod yield and seed grade (total sound mature kernels [TSMK]). In 19 tests in Florida over 3 yr, the TSMK of AP-4 averaged 77% compared with 73% for ‘AP-3’ (P < 0.0001). AP-3 is most noted for its high level of resistance to spotted wilt caused by Tomato spotted wilt tospovirus, but low TSMK has restricted its acceptance among farmers. AP-4 has competitive pod yield potential and good resistance to spotted wilt. The improved TSMK of AP-4 should provide improved revenue compared to AP-3.

Abbreviations: NFREC, North Florida Research and Education Center • PSREU, Plant Science Research and Education Unit • TSMK, total sound mature kernels • TSWV, Tomato spotted wilt virus • UPPT, Uniform Peanut Performance Tests • WFREC, West Florida Research and Education Center