[Objective] This study aimed to screen suitable excellent cherry varieties for cultivation in Northern Guizhou region. [Method] In 2011-2014, various biological traits of two new introduced cherry varieties and a loca...[Objective] This study aimed to screen suitable excellent cherry varieties for cultivation in Northern Guizhou region. [Method] In 2011-2014, various biological traits of two new introduced cherry varieties and a local variety were evaluated and compared, including plant growth, characteristics of branches, leaves and flowers, fruit economic traits, phenological response, yield traits and stress resistance. [Result] Black Pearl and Pitch-Black-skinned Cherry exhibited better performance than the local variety, with the branch germination rate of 85.42% and 80.95%, branching rate of 18.75% and 15.87%, spring shoot length of 35.5 cm and 31.6 cm, annual spring shoot growth of 6 223.2 and 5 956.6 cm, leaf size of 14.9 cm × 7.6 cm and 13.8 cm × 8.1 cm, flower size of 2.5 cm ×2.6 cm and 2.3 cm × 2.4 cm, fruit ma- turity stage in late April-early May and early-mid May, average single fruit weight of 3.85 g and 3.68 g, sugar content in fruit juice of 14.5% and 14.2%, fruit edible rate of 76.47% and 77.23%, fruit-bearing rate of 28.48% and 29.81%, average yield per plant of 15.6 kg and 11.9 kg, converted output of 12 282 kg/hm2 and 9 814.5 kg/hm2, respectively. In addition, these two new introduced cherry varieties demonstrated strong adaptability and relatively strong adaptability, respectively. Therefore, Black Pearl exhibited the best performance, followed by Pitch-Black-skinned Cherry, which were both superior to the local variety. [Conclusion] Black Pearl can be selected as the main cultivar with supporting cultivation techniques in Northern Guizhou region, appropriately combined with Pitch-Black-skinned Cherry.展开更多
[Objective] The aim was to study the molecular identification and cultivar fingerprints of Prunus persica (L.) Batsch germplasms.[Method] Sixty peach genotypes,representing China common local cultivars and European sa...[Objective] The aim was to study the molecular identification and cultivar fingerprints of Prunus persica (L.) Batsch germplasms.[Method] Sixty peach genotypes,representing China common local cultivars and European samples were screened by microsatellites (simple sequence repeats,SSRs) and Inter-Simple Sequence Repeat (ISSR) markers.[Result] 26 reproducible bands were amplified by Nine SSR primers,and 24 of which were polymorphic; 236 bands were amplified by 30 ISSR primers,and 113 of which were polymorphic.31 genotypes were discriminated with 1-3 distinct polymorphic bands generated from the primers ISSR and SSR.Seven cultivar-specific ISSR fragments and two SSR unique alleles obtained from this study were available to be converted into Sequence Characterized Amplified Region (SCAR) markers.The genetic similarity coefficient (GS) estimated from these molecular data averaged were 0.939 (ranged from 0.856 to 0.983) for ISSR and 0.646 (ranged from 0.240 to 1.000) for SSR,respectively.The combined grouping association indicated that most local Chinese peach cultivars and exotic accessions were clustered together.This could be related to the mode of introduction and maintenance of the peach cultivars involving limited foundation germplasm,exchange of cultivars between plantations,and periodic development of new recombinant cultivars following sexual reproduction.[Conclusion] The results obtained in this work would help to improve the conservation,molecular identification and management of peach germplasm in breeding.展开更多
文摘[Objective] This study aimed to screen suitable excellent cherry varieties for cultivation in Northern Guizhou region. [Method] In 2011-2014, various biological traits of two new introduced cherry varieties and a local variety were evaluated and compared, including plant growth, characteristics of branches, leaves and flowers, fruit economic traits, phenological response, yield traits and stress resistance. [Result] Black Pearl and Pitch-Black-skinned Cherry exhibited better performance than the local variety, with the branch germination rate of 85.42% and 80.95%, branching rate of 18.75% and 15.87%, spring shoot length of 35.5 cm and 31.6 cm, annual spring shoot growth of 6 223.2 and 5 956.6 cm, leaf size of 14.9 cm × 7.6 cm and 13.8 cm × 8.1 cm, flower size of 2.5 cm ×2.6 cm and 2.3 cm × 2.4 cm, fruit ma- turity stage in late April-early May and early-mid May, average single fruit weight of 3.85 g and 3.68 g, sugar content in fruit juice of 14.5% and 14.2%, fruit edible rate of 76.47% and 77.23%, fruit-bearing rate of 28.48% and 29.81%, average yield per plant of 15.6 kg and 11.9 kg, converted output of 12 282 kg/hm2 and 9 814.5 kg/hm2, respectively. In addition, these two new introduced cherry varieties demonstrated strong adaptability and relatively strong adaptability, respectively. Therefore, Black Pearl exhibited the best performance, followed by Pitch-Black-skinned Cherry, which were both superior to the local variety. [Conclusion] Black Pearl can be selected as the main cultivar with supporting cultivation techniques in Northern Guizhou region, appropriately combined with Pitch-Black-skinned Cherry.
基金Supported by National Peach Industrial Technology System (nycytx-31-zs-10 )National Science and Technology Support Program (2008BAD98B03-08)+1 种基金National Peach Commonweal Science (Agriculture) Research Projects (3-37)Chengdu Technology Application and Promotion Program (09YTZD986NC-012)
文摘[Objective] The aim was to study the molecular identification and cultivar fingerprints of Prunus persica (L.) Batsch germplasms.[Method] Sixty peach genotypes,representing China common local cultivars and European samples were screened by microsatellites (simple sequence repeats,SSRs) and Inter-Simple Sequence Repeat (ISSR) markers.[Result] 26 reproducible bands were amplified by Nine SSR primers,and 24 of which were polymorphic; 236 bands were amplified by 30 ISSR primers,and 113 of which were polymorphic.31 genotypes were discriminated with 1-3 distinct polymorphic bands generated from the primers ISSR and SSR.Seven cultivar-specific ISSR fragments and two SSR unique alleles obtained from this study were available to be converted into Sequence Characterized Amplified Region (SCAR) markers.The genetic similarity coefficient (GS) estimated from these molecular data averaged were 0.939 (ranged from 0.856 to 0.983) for ISSR and 0.646 (ranged from 0.240 to 1.000) for SSR,respectively.The combined grouping association indicated that most local Chinese peach cultivars and exotic accessions were clustered together.This could be related to the mode of introduction and maintenance of the peach cultivars involving limited foundation germplasm,exchange of cultivars between plantations,and periodic development of new recombinant cultivars following sexual reproduction.[Conclusion] The results obtained in this work would help to improve the conservation,molecular identification and management of peach germplasm in breeding.
