油茶高产品种选育与丰产栽培技术及推广

该成果是由亚林所等5家单位通力协作，经过20多年的持续研究所得。该成果研究阐明了油茶种质的主要经济性状特别是脂肪酸变异规律以及杂交F1代性状变异规律，并在此基础上经多点试验和区域试验，选育出49个高产、稳产、高抗油茶良种，这构成了我国油茶二代良种的主体，也是目前大力推广的良种 发明了以无性系扩繁技术为核心的快繁技术，实现了油茶优良品种无性扩繁规模化，促进了油茶培育方式从实生林向无性系林的变革 首创形成的以栽培区划为基础，以品种配比为核心的高效栽培技术体系，使油茶由粗放经营转向为园艺化栽培，良种茶油大面积产量多年平均到30-50kg，单一高产年份产量达到国内最高水平，是油茶产业的重大技术创新 针对油茶现有林低产背景，还提出了“强化抚育、嫁接换冠、模式转换、替代造林”等不同模式的技术体系，实现了油茶林产量和效益的提升。成果在浙江、江西、湖南、广西、贵州、湖北、安徽、福建、河南、广东等推广应用，为我国油茶产业发展提供了坚强的科技支撑。　　针对油茶产业关键技术问题，科学研究继续向深度和广度拓展，在有关项目支持下，开展了由亚林所负责、5省12个主产区县参加的油茶科技协作。开展了普通油茶超高产持续育种、优异物种良种选育和远缘杂交技术研究工作，常年杂交果在2000个以上，选择一大批优株，以5个物种的优良亲本性状为基础，构建了一批种间杂交选育具超级性状优良种质。建立了国内最完整、保存种质最全的金华油茶等木本油料种质资源库，将油茶作为四大重要木本油料种质进行保存，收集国内具有高产等优良性状的油茶物种和具有优良性状的种质。启动了茶油精深加工和副产品利用技术研究，在茶油有机食品研发、油质贮藏技术与控制技术、副产品有效成份高技术提取等方面取得进展，分别与江西、湖南、浙江等省加工企业开展合作。　　近10年来，亚林所研究人员利用该成果先后在南方10多个省区建立了28个示范点，累计推广该项成果200多万亩（低改170多万亩，新品种造林38.3万亩），新品种数量及造林面积覆盖面80%以上，建成油茶无性系扩繁基地15个，无性系扩繁技术应用覆盖面95%以上，繁殖苗木6110万株。近三年新增产值26亿元，产生了巨大的经济效益。

This achievement was developed through over two decades of continuous collaboration by five institutions including the Research Institute of Subtropical Forestry (RISF). It elucidated the main economic traits of Camellia oleifera germplasm, particularly the variation patterns of fatty acids and the trait variation of its hybrid F1 generation. Based on these findings, 49 high-yield, stable-yielding and high-resistance improved Camellia oleifera varieties were bred via multi-location and regional trials, which constitute the main body of the second-generation improved Camellia oleifera varieties in China and are currently widely promoted.
A rapid propagation technology with clonal propagation as the core was invented, realizing large-scale clonal propagation of excellent Camellia oleifera varieties and promoting the transformation of Camellia oleifera cultivation modes from seedling forests to clonal forests. The first-ever established efficient cultivation technology system, based on cultivation zoning and centered on variety matching, shifted Camellia oleifera cultivation from extensive management to horticultural cultivation. The average annual yield of improved Camellia oleifera oil over large areas reached 30-50 kg per mu, with the yield in a single high-yield year reaching the highest level in China, representing a major technological innovation in the Camellia oleifera industry.
In view of the low-yield status of existing Camellia oleifera forests, technical systems with multiple modes including "strengthened tending, grafting and crown replacement, mode conversion, and replacement afforestation" were proposed, which improved the yield and benefits of Camellia oleifera forests. The achievements have been promoted and applied in Zhejiang, Jiangxi, Hunan, Guangxi, Guizhou, Hubei, Anhui, Fujian, Henan, Guangdong and other provinces, providing strong scientific and technological support for the development of China's Camellia oleifera industry.

In response to key technical issues in the Camellia oleifera industry, scientific research has continued to expand in depth and breadth. Supported by relevant projects, a Camellia oleifera scientific and technological collaboration led by RISF and participated by 12 major production counties across 5 provinces was launched. Research on continuous ultra-high-yield breeding of common Camellia oleifera, breeding of excellent species and improved varieties, and distant hybridization technology was carried out, with over 2000 hybrid fruits produced annually and a large number of excellent individual plants selected. Based on the excellent parental traits of 5 species, a batch of excellent germplasm with super traits was developed via interspecific hybridization breeding.
The most complete and comprehensive woody oil germplasm resource bank including Camellia oleifera in Jinhua was established. Camellia oleifera is preserved as one of the four major important woody oil germplasms, and Camellia oleifera species with excellent traits such as high yield and high-quality germplasm in China were collected. Research on deep processing of Camellia oleifera oil and by-product utilization technology was launched, with progress made in the development of organic Camellia oleifera oil food, oil storage and quality control technologies, and high-tech extraction of effective components from by-products. Cooperations have been carried out with processing enterprises in Jiangxi, Hunan, Zhejiang and other provinces respectively.

Over the past decade, researchers from RISF have used this achievement to establish 28 demonstration sites in more than 10 southern provinces and regions. The cumulative promotion area of this achievement has exceeded 2 million mu (including 1.7 million mu of low-yield forest transformation and 383,000 mu of new variety afforestation), with the coverage of new varieties and afforestation area exceeding 80%. Fifteen Camellia oleifera clonal propagation bases have been built, with the application coverage of clonal propagation technology exceeding 95%, and 61.1 million seedlings have been propagated. In the past three years, the added output value has reached 2.6 billion yuan, generating huge economic benefits.

搜集汇总

背景与挑战

背景概述

该数据集详细记录了油茶高产品种的选育过程、无性系扩繁技术和高效栽培技术体系，并在中国多个省份推广应用，取得了显著的经济效益。数据集还包含了相关技术的研究背景、成果应用范围及具体推广数据，为油茶产业提供了重要的科技支撑。