Relationoship Between Fruit Crack and Fruit Skin Architecture and their Heterosis in Tomato( Lycopersicon esculentum Mill.)

doi:10.3321/j.issn:1000-7091.2007.03.033

Abstract

Abstract: According to diallel crossing design, 4×4 combinations from 4 female parents with crack resistance and 3 crack-susceptible male parents and 1 crack-resistant male parent were made. These 16 F₁s and 8 parents were used to study relationship between crack characteristics and fruit skin architecture as well as their heterosis. Experimental results showed that fruit skin of crack-susceptible genotypes was much thinner than that of crack-resistant ones. But there were some crack-resistant genotypes with thin fruit skin. Crack characteristics displayed a strong heterosis but its direction depended on combinations. General combining ability played an important role on crack-resistant time of F₁. The potential of improving crack capacity based on skin architecture was discussed.

Key words: Tomato, Fruit crack, Fruit skin architecture, Heterosis

CLC Number:

S641.203.6

LIU Zhong-qi, XUE Jun, JIN Feng-mei, BAI Yan-ling. Relationoship Between Fruit Crack and Fruit Skin Architecture and their Heterosis in Tomato( Lycopersicon esculentum Mill.)[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(3): 141-147. doi: 10.3321/j.issn:1000-7091.2007.03.033.

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