3Powell C A, Stoffela P J.culling tomatoes with external symptoms of irregular ripening is limited benefit. HortSci, 1996,2:316-317.
4Francis D M, Barringer S A, Whitmoyer R E. Ultrastructural characterization of yellow shoulder on disorder in a uniform ripening tomato genotype[ J ]. HortScience 2000,35 (6) :1114- 1117.
5Fraster P D,Truesdale M R,Bird Colin R,et al. Carotenoid biosynthesis during tomato fruit development [ J ]. Plant Physiol, 1994, (105) :405 - 413.
9US Dept Agric Mktg Serv. United States standards for grades of tomatoes. Fed Reg ,1976,41:11464.
10Powell C A, Stoffela P J. Susceptibility of tomato cultivars to internal and external tomato irregular ripening [ J ].HortScience, 1995, 30 (6) : 1307.
