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Citation:

Effects of Different Scions on Rootstock Root System in Persimmon

  • Received Date: 2015-04-09
  • The difference of shoots and roots phenotypic in persimmon grafted seedlings reflects the influence of scion on the growth of roots and interaction existed between scion and rootstock. It may provide evidences for rootstock selection and cultivation on persimmon. The shoot and root phenotypic traits of 27 one-year-old grafted combinations, 3 two-year-old grafted combinations and 3 two-year-old grafted combinations with interstock were analyzed using variance analysis, multiple comparisons and principal component analysis. The results showed that there were significant differences for shoot and root phenotypic traits among grafted combinations; Under same rootstock, grafted seedlings with Diospyros kaki ‘Jirou’ or D. kaki ‘Youhou’scions had higher root fresh, dry weight, root length, root area and root volume than D. kaki‘Taishu’ or D. kaki‘Fuyu’scions, on the eight rootstocks (without D. rhombifolia Hemsl), and the comprehensive evaluation also revealed similar results. In addition to moisture content, the shoot and root phenotypic traits had significantly correlation, thereinto, the shoot fresh weight and dry weight were the dominant factors, plant height and scion diameter were important factors on roots fresh weight, roots dry weight, root length, root area and root volume. Two-year-old grafted seedlings of D. lotus or D. glaucifolia grafted onto D. kaki ‘Fuyu’scion showed weakening roots phenotypic traits, but it was improved with D. kaki‘Jirou’ interstock in the early. It is concluded that scion had influence on rootstock roots, and maybe associate with the graft compatibility, there existed close interaction between scion and rootstock roots. It is estimated taking D. kaki‘Jirou’ as interstock may improve the affinity of D. lotus or D. glaucifolia grafted onto D. kaki‘Fuyu’scion.
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Effects of Different Scions on Rootstock Root System in Persimmon

  • 1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding of Zhejiang Province, Hangzhou 311400, Zhejiang, China

Abstract: The difference of shoots and roots phenotypic in persimmon grafted seedlings reflects the influence of scion on the growth of roots and interaction existed between scion and rootstock. It may provide evidences for rootstock selection and cultivation on persimmon. The shoot and root phenotypic traits of 27 one-year-old grafted combinations, 3 two-year-old grafted combinations and 3 two-year-old grafted combinations with interstock were analyzed using variance analysis, multiple comparisons and principal component analysis. The results showed that there were significant differences for shoot and root phenotypic traits among grafted combinations; Under same rootstock, grafted seedlings with Diospyros kaki ‘Jirou’ or D. kaki ‘Youhou’scions had higher root fresh, dry weight, root length, root area and root volume than D. kaki‘Taishu’ or D. kaki‘Fuyu’scions, on the eight rootstocks (without D. rhombifolia Hemsl), and the comprehensive evaluation also revealed similar results. In addition to moisture content, the shoot and root phenotypic traits had significantly correlation, thereinto, the shoot fresh weight and dry weight were the dominant factors, plant height and scion diameter were important factors on roots fresh weight, roots dry weight, root length, root area and root volume. Two-year-old grafted seedlings of D. lotus or D. glaucifolia grafted onto D. kaki ‘Fuyu’scion showed weakening roots phenotypic traits, but it was improved with D. kaki‘Jirou’ interstock in the early. It is concluded that scion had influence on rootstock roots, and maybe associate with the graft compatibility, there existed close interaction between scion and rootstock roots. It is estimated taking D. kaki‘Jirou’ as interstock may improve the affinity of D. lotus or D. glaucifolia grafted onto D. kaki‘Fuyu’scion.

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