Frequency of Zygotic Seedlings from Five Polyembryonic Mango Rootstocks

in HortScience
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  • 1 Agricultural Research Service, U.S. Department of Agriculture, National Clonal Germplasm Repository, Miami, FL 33158

Five isozyme systems were used to detect zygotic seedlings from five polyembryonic cultivars of mango (Manifera indica L.). Significant differences were found between cultivars (x2 = 35.53, P < 0.001) for the percentage of zygotic and nucellar seedlings detected. The range of variation in the percentage of off-types was from 0% in 13-1 to 64% in Golek. The percentage in Sabre was 4%, and 24% and 36% in Tupentine and Madoe, respectively. Three of eight rootstock mother trees of Turpentine were determined to be off-types.

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