Survey on Intra-specific Crossing and F<sub>1</sub> Seedling Cultivation in Seven Combinations of Chinese Cherry

The Chinese cherry (Prunus pseudocerasus/Cerasus pseudocerasus), which is native to China, an economically important tetraploid fruiting species. Its industry has been greatly limited due some general disadvantages in the fruits such as small fruit size, high acid content, and short shelf-life. As such, it urgent carry out cross breeding genetic improvement of this Here, seven combinations were designed by selecting five genotype landraces one semi-wild resource parents. fruit-set percentage, germination rate hybrid seeds, growth status F1 seedlings varied among different parental genotypes combinations. Three or four S-genotypes detected six parents, with a maximum alleles between two Both pollen vigor male parent differential S-genotype parents may contribute variation percentages, ranging from 0 28.55%. Significant differences F0 traits observed combinations, indicating potential metaxenia cherry. Appropriate pretreatments, including removal endocarps, soaking 150 mg/L GA3 for 24 h, chilling stratification 7–10 days, could significantly increase seeds. According overall performance, using (semi)-wild resources should be taken into consideration more programs. On basis these findings, we further constructed flow chart successful intra-specific crossing efficient cultivation robust seedlings. This study will provide references selection establishment feasible program, progenies