Contrasting effects of acid and nonacid pummelos on the acidity of hybrid citrus progenies
AuthorsRobert K. Soost
James W. Cameron
Authors AffiliationsRobert K. Soost was Associate Geneticist in the Agricultural Experiment Station, Riverside; James W. Cameron was Geneticist in the Agricultural Experiment Station, Riverside.
Hilgardia 30(12):351-357. DOI:10.3733/hilg.v30n12p351. January 1961.
Abstract does not appear. First page follows.
Reports on the levels of acid in hybrid progenies of fruit trees have been rather fragmentary. Most reports describe only the general behavior of progenies; when data on individual progenies are given, acid levels often cannot be separated from sugar levels or other factors of fruit quality. (Bishop (1951))4 and (Kimball (1930)), in crosses of several apple varieties with Northern Spy and Mclntosh, found that some parents gave a much higher percentage of acid individuals than did others. On the basis of organoleptic tests, (Klein (1958)) indicated that sweetness is recessive to acidity in apple progenies. Using chemical tests, (Nybom (1959)), whose report is more comprehensive than most others, concluded that sweetness is determined by a single recessive gene. In peach, (Connors (1922)) reported that Early Crawford transmitted acidity. (Blake (1937)) indicated association of blood-red flesh, astringency, and early ripening with acidity in progenies of the J. H. Hale peach with Dwarf Blood and Chinese Blood.
Although there are several reports (Harding and Fisher, 1945); (Harding and Sunday, 1949); (Harding and Wadley, 1945); (Harding, Winston, and Fisher, 1940); (Sinclair and Bartholomew, 1947) on the seasonal changes of acid levels in several varieties of citrus fruits in relation to their palatability, there seem to be no data concerning the behavior of acidity in progenies from parents of differing acid levels.
In the course of the citrus breeding program under way at the University of California Citrus Experiment Station, Eiverside, fruiting populations of hybrids involving the pummelo (Citrus grandis Osbeck) as one parent have been under examination for the last seven years. The pummelos possess certain
Bishop C. J. A study of male parental influence in crosses with the Northern Spy apple. Proc. Amer. Soc. Hort. Sci. 1951. 57:165-68.
Blake M. A. Progress in peach breeding. Proc. Amer. Soc. Hort. Sci. 1937. 35:49-53.
Breider H. Zur Züchtung neuer Qualitätssorten bei der Weinrebe. Züchter. 1950. 20:135-53.
Connors C. H. Peach breeding—a summary of results. Proc. Amer. Soc. Hort. Sci. 1922. 19:108-15.
Frost H. B. Four new citrus varieties—the Kara, Kinnow, and Wilking mandarins and the Trovita orange. Calif. Agric. Expt. Sta. Bul. 1935. 597:1-14. https://archive.org/details/fournewcitrusvar597fros
Frost H. B., Cameron J. W. Frua and Dweet. Two new citrus varieties that produce good-sized fruit with tangerine-like flavor. Calif. Agric. Expt. Sta. Bul. 1951. 721:1-10.
Harding Paul L., Fisher D. F. Seasonal changes in Florida grapefruit. U. S. Dept. Agr. Tech. Bul. 1945. 886:1-100.
Harding Paul L., Sunday M. B. Seasonal changes in Florida tangerines. U. S. Dept. Agr. Tech. Bul. 1949. 988:1-59.
Harding Paul L., Wadley F. J. Study of quality in Temple oranges. Food Research. 1945. 10:510-17. DOI: 10.1111/j.1365-2621.1945.tb16199.x [CrossRef]
Harding Paul L., Winston J. R., Fisher D. F. Seasonal changes in Florida oranges. U. S. Dept. Agr. Tech. Bul. 1940. 753:1-89.
Kimball D. A. A study of the progeny resulting from crossing certain apple varieties. Proc. Amer. Soc. Hort. Sci. 1930. 27:412-15.
Klein L. G. The inheritance of certain fruit characters in the apple. Proc. Amer. Soc. Hort. Sci. 1958. 72:1-14.
Nybom N. On the inheritance of acidity in cultivated apples. Hereditas. 1959. 45:332-50. DOI: 10.1111/j.1601-5223.1959.tb03056.x [CrossRef]
Sinclair W. B., Bartholomew E. T. Compositional factors affecting the edible quality of oranges. Proc. Amer. Soc. Hort, Sci. 1947. 50:177-86.
Also in this issue:Our most important industry
A pressure machine for injecting trees
EFNEP: Helps low-income families improve diets
Fabric damage during laundering
Damage to fresh tomatoes can be reduced
Kinetin improves lettuce germination
Early rains alter range forage
Research in progress: Energy and water in California
Research in progress: New project environmental quality in lakes and streams
Research in progress: Drip irrigation
Research in progress: Mechanisms regulating enzymes
Research in progress: Salt-tolerant crops
Research in progress: Trace elements in oral contrceptives
Chandler—an early-ripening hybrid pummelo derived from a low-acid parent