In view of the short blooming period of pear tree crossbreeding and the complexity of pollination process, a method that can improve the efficiency of crossbreeding of pear trees was provided. Meanwhile, this method c...In view of the short blooming period of pear tree crossbreeding and the complexity of pollination process, a method that can improve the efficiency of crossbreeding of pear trees was provided. Meanwhile, this method can also be applied to the study of pollen xenia effect, pollination tree selection and pure pollen collection in pear tree cultivation.展开更多
Aiming at high cost and low efficiency of conventional branch bending method in the modern intensive planting and labor-saving cultivation mode of young pear trees,this paper provides a new branch bending method with ...Aiming at high cost and low efficiency of conventional branch bending method in the modern intensive planting and labor-saving cultivation mode of young pear trees,this paper provides a new branch bending method with wide source of raw materials,cheap price and simple operation,which is also suitable for the management of low-age branches in the process of high grafting and upgrading of traditional big trees.展开更多
In view of the deficiencies of training technologies during constructing pear orchards by modern simplified dense-planting cultivation with ordinary pear seedlings widely used in production,a simple and easy-to-operat...In view of the deficiencies of training technologies during constructing pear orchards by modern simplified dense-planting cultivation with ordinary pear seedlings widely used in production,a simple and easy-to-operate training method was proposed,mainly including constructing fence nets,determining low main trunks,leaving buds at the northwest position,multiple bud removal,winding and notching,simplified branch supporting,and simplified branch pulling.展开更多
In order to investigate the effect of dwarfing inter stock on the structure of pear trees,investigations were made to the tree and group structure of the 4-year-old spindle-shaped‘Huangguan'pear grafted with vigo...In order to investigate the effect of dwarfing inter stock on the structure of pear trees,investigations were made to the tree and group structure of the 4-year-old spindle-shaped‘Huangguan'pear grafted with vigorous stock( Pyrus betulaefolia stock) and that grafted with the dwarfing inter stock‘Zhong ai 1 hao'( P. betulaefolia rootstock). The results showed that the 4-year-old‘Huangguan'pear trees grafted with the dwarfing inter stock‘ Zhong ai 1 hao'were 2. 87 m high on average,with 70. 70% of short braches,converted into 21 016. 0 branches per 667 m^2,840. 64 m^2 of leaf area per 667 m^2 with the leaf area coefficient of 1. 75.On the other hand,for the‘Huangguan'trees grafted with vigorous stocks,the average tree height was 3. 17 m,and the short branch proportion was 63. 20%,converted into 15 806. 4 branches per 667 m^2,719. 28 m^2 of leaf area per 667 m^2 with the leaf area coefficient of 1. 55. Therefore,the use of dwarfing inter stock‘Zhong ai 1 hao'had significant dwarfing effect on‘Huangguan'pear trees,which also showed significant yield increasing effect.展开更多
In order to study reasonable tree structure parameters of Y-shaped pear orchards in natural conditions and at management technical level of Tai'an area, the tree structure and population structure of high-quality ...In order to study reasonable tree structure parameters of Y-shaped pear orchards in natural conditions and at management technical level of Tai'an area, the tree structure and population structure of high-quality and high-yielding Y-shaped pear orchards were investigated. The results showed that when the yield of Y-shaped 'Oshu' was 2 550 kg/667 m^2 in the early fully fruiting period, the quantity of the branches per 667 m^2 was about 54 000, and the number of short branches was the largest, accounting for 80.1% of total number of branches, followed by middle branches, long branches and developmental branches. As the yield of Y-shaped 'Qiuyue' was 2 875 kg/667 m^2 in the early fully fruiting period, the quantity of the branches per 667 m^2 was 51 000, and the number of short branches was the largest, accounting for 75.6% of total number of branches, followed by middle branches, long branches and developmental branches. When the yield of Y-shaped 'Niitaka' was 3 000 kg/667 m^2 in the early fully fruiting period, the quantity of the branches per 667 m^2 was 43 000, and the number of short branches was the largest, accounting for 82.0% of total number of branches, followed by long branches, middle branches and developmental branches.展开更多
腐烂病是一种主要发生于库尔勒香梨树皮内的严重病害,该研究通过高通量测序方法,对库尔勒香梨树皮内生菌的组成结构和多样性及影响因子进行研究,旨在探明库尔勒香梨树皮内生菌动态变化及受腐烂病和营养元素的影响。结果表明,库尔勒香梨...腐烂病是一种主要发生于库尔勒香梨树皮内的严重病害,该研究通过高通量测序方法,对库尔勒香梨树皮内生菌的组成结构和多样性及影响因子进行研究,旨在探明库尔勒香梨树皮内生菌动态变化及受腐烂病和营养元素的影响。结果表明,库尔勒香梨内生细菌分布于67个门555个属,真菌分布于9个门405个属。在属水平,细菌优势菌为大肠埃希菌(Escherichia)、醋酸杆菌属(Acetobacter)、链霉菌属(Streptomyces)、盐水球菌属(Salinicoccus),真菌优势菌为条锈菌属(Puccinia)、球囊霉属(Rhizophagus)、根霉属(Rhizopus)。库尔勒香梨树皮内生菌受腐烂病和营养元素显著影响。营养元素氮、磷、钾与部分内生菌存在不同程度的相关性,树皮内生真菌与氮、钾元素相关性更大。库尔勒香梨树皮内生菌的功能主要被注释到新陈代谢(metabolism)、有机系统(organic system)、环境信息加工(environmental information processing)3大通路,发病树皮的3大通路丰度高于健康树皮。该研究明确了新疆库尔勒香梨树皮内生菌群落结构与多样性,患腐烂病与健康树皮有一定的差异,内生菌与营养元素间存在相互作用,树皮中存在一定的有益微生物和可供开发利用的有益功能菌群,用于库尔勒香梨腐烂病的生物防治、促进果业发展。展开更多
基金Supported by HAAFS Science and Technology Innovation Special Project(2022KJCXZX-CGS-7)the Key Research and Development Program of Hebei Province(21326308D-1-2)Hebei Agriculture Research System(HBCT 2024170406)。
文摘In view of the short blooming period of pear tree crossbreeding and the complexity of pollination process, a method that can improve the efficiency of crossbreeding of pear trees was provided. Meanwhile, this method can also be applied to the study of pollen xenia effect, pollination tree selection and pure pollen collection in pear tree cultivation.
基金Technology Innovation Special Project of Hebei Academy of Agriculture and Forestry Sciences(2022KJCXZX-CGS-7,2023KJCXZX-CGS-11)Key Research and Development Program of Hebei Province(21326308D-1-2)+1 种基金Hebei Agriculture Research System(HBCT2024170406)China Agricultural(Pear)Research System(CARS-28-27).
文摘Aiming at high cost and low efficiency of conventional branch bending method in the modern intensive planting and labor-saving cultivation mode of young pear trees,this paper provides a new branch bending method with wide source of raw materials,cheap price and simple operation,which is also suitable for the management of low-age branches in the process of high grafting and upgrading of traditional big trees.
基金Supported by Innovation Engineering Project of Hebei Academy of Agriculture and Forestry Sciences(2022KJCXZX-CGS-7)Key R&D Program of Hebei Province(21326308D-1-2)China Agriculture Research System of MOF and MARA(CARS-28-27)。
文摘In view of the deficiencies of training technologies during constructing pear orchards by modern simplified dense-planting cultivation with ordinary pear seedlings widely used in production,a simple and easy-to-operate training method was proposed,mainly including constructing fence nets,determining low main trunks,leaving buds at the northwest position,multiple bud removal,winding and notching,simplified branch supporting,and simplified branch pulling.
基金Supported by the China Agriculture Research System(Pear)(CARS-28-36)the National Natural Science Foundation of China(31601708)+4 种基金the Agricultural Stock Breeding Project of Shandong Province(2016LZGC034)the Youth Foundation of Shandong Academy of Agricultural Sciences(2015YQN40)the National Science and Technology Plan for Rural Areas of China(2014BAD16B03-4)the Project for Agricultural Science and Technology Innovation of Shandong Academy of Agricultural Sciences(CXGC2018F03)the Key Science and Technology Innovation Project of Shandong Province(2018CXGC0208)
文摘In order to investigate the effect of dwarfing inter stock on the structure of pear trees,investigations were made to the tree and group structure of the 4-year-old spindle-shaped‘Huangguan'pear grafted with vigorous stock( Pyrus betulaefolia stock) and that grafted with the dwarfing inter stock‘Zhong ai 1 hao'( P. betulaefolia rootstock). The results showed that the 4-year-old‘Huangguan'pear trees grafted with the dwarfing inter stock‘ Zhong ai 1 hao'were 2. 87 m high on average,with 70. 70% of short braches,converted into 21 016. 0 branches per 667 m^2,840. 64 m^2 of leaf area per 667 m^2 with the leaf area coefficient of 1. 75.On the other hand,for the‘Huangguan'trees grafted with vigorous stocks,the average tree height was 3. 17 m,and the short branch proportion was 63. 20%,converted into 15 806. 4 branches per 667 m^2,719. 28 m^2 of leaf area per 667 m^2 with the leaf area coefficient of 1. 55. Therefore,the use of dwarfing inter stock‘Zhong ai 1 hao'had significant dwarfing effect on‘Huangguan'pear trees,which also showed significant yield increasing effect.
基金Supported by Special Project for Construction of National Pear Industry Technology System(CARS-28-36)National Natural Science Foundation of China(31601708)+3 种基金Agricultural Seed Improvement Project of Shandong Province,China(2016LZGC034)Foundation for Young Scholars of Shandong Academy of Agricultural Sciences(2015YQN40)National Science and Technology Plan of Rural Areas in the"12th Five-year Plan"Period of China(2014BAD16B03-4)Agricultural Science and Technology Innovation Project of Shandong Academy of Agricultural Sciences(CXGC2016B07)
文摘In order to study reasonable tree structure parameters of Y-shaped pear orchards in natural conditions and at management technical level of Tai'an area, the tree structure and population structure of high-quality and high-yielding Y-shaped pear orchards were investigated. The results showed that when the yield of Y-shaped 'Oshu' was 2 550 kg/667 m^2 in the early fully fruiting period, the quantity of the branches per 667 m^2 was about 54 000, and the number of short branches was the largest, accounting for 80.1% of total number of branches, followed by middle branches, long branches and developmental branches. As the yield of Y-shaped 'Qiuyue' was 2 875 kg/667 m^2 in the early fully fruiting period, the quantity of the branches per 667 m^2 was 51 000, and the number of short branches was the largest, accounting for 75.6% of total number of branches, followed by middle branches, long branches and developmental branches. When the yield of Y-shaped 'Niitaka' was 3 000 kg/667 m^2 in the early fully fruiting period, the quantity of the branches per 667 m^2 was 43 000, and the number of short branches was the largest, accounting for 82.0% of total number of branches, followed by long branches, middle branches and developmental branches.
文摘腐烂病是一种主要发生于库尔勒香梨树皮内的严重病害,该研究通过高通量测序方法,对库尔勒香梨树皮内生菌的组成结构和多样性及影响因子进行研究,旨在探明库尔勒香梨树皮内生菌动态变化及受腐烂病和营养元素的影响。结果表明,库尔勒香梨内生细菌分布于67个门555个属,真菌分布于9个门405个属。在属水平,细菌优势菌为大肠埃希菌(Escherichia)、醋酸杆菌属(Acetobacter)、链霉菌属(Streptomyces)、盐水球菌属(Salinicoccus),真菌优势菌为条锈菌属(Puccinia)、球囊霉属(Rhizophagus)、根霉属(Rhizopus)。库尔勒香梨树皮内生菌受腐烂病和营养元素显著影响。营养元素氮、磷、钾与部分内生菌存在不同程度的相关性,树皮内生真菌与氮、钾元素相关性更大。库尔勒香梨树皮内生菌的功能主要被注释到新陈代谢(metabolism)、有机系统(organic system)、环境信息加工(environmental information processing)3大通路,发病树皮的3大通路丰度高于健康树皮。该研究明确了新疆库尔勒香梨树皮内生菌群落结构与多样性,患腐烂病与健康树皮有一定的差异,内生菌与营养元素间存在相互作用,树皮中存在一定的有益微生物和可供开发利用的有益功能菌群,用于库尔勒香梨腐烂病的生物防治、促进果业发展。