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北京林业大学落叶栎研究中心完成全国栓皮栎种质资源的首次采集与播种

  • 2026-02-05 04:00:12
北京林业大学落叶栎研究中心完成全国栓皮栎种质资源的首次采集与播种

经过近一年紧锣密鼓的筹备、策划和方案论证,2022年8月28日,北京林业大学落叶栎研究中心(以下简称“中心”)全国栓皮栎种质资源采集工作正式展开。中心依托“十四五”重点研发计划项目,联合全国各省林业高校、林业局、及国有林场,历时77圆满完成了优树选择与种子采集工作,共收集8万多粒栓皮栎种子,同时对壳斗和土壤也进行了收集。

精选栓皮栎天然林采样点

自2021年底,落叶栎研究中心组织开展了多次全国栓皮栎种质资源采集研讨会,并聘请领域内多位专家进行方案论证,确定了栓皮栎的主要育种目标,并规范了栓皮栎优良单株选择标准,为后续采集栓皮栎种质资源奠定了扎实的科学基础。

与专家进行讨论

在本次采集过程中,中心共派出17名成员开展外业工作,在与各地林场工作人员进行友好交流后,历时两个多月,最终于全国21个省标记优树396株,采集256个家系、101个种源混采。采集的栓皮栎资源分布横跨经度24°纵跨纬度17°,海拔分布23米(江苏连云港)至2014米(四川冕宁)。

外业实录

整理种子

学生播种

拌基质

老师播种

播种成果

土壤样品采集后自然风干4-5天,四天左右检测土壤是否风干完全,风干完全后将土壤过2mm筛,除去土中杂质(枝条,树叶,石块等),大土块可以碾碎再过筛,后放入自封袋中标记。后续将对各地栓皮栎林下土壤的化学成分进行分析,解析全国尺度下栓皮栎林下土壤性质特征,为栓皮栎适地适树栽培提供理论参考。

土壤处理

栓皮栎壳斗中富含水解单宁。水解单宁具有较强的抗氧化活性,具有抗菌、抗病毒等作用,在农业、畜牧业、医药、化妆品等行业都发挥巨大作用。其作为“天然抗生素”,广泛用作饲料添加剂,在欧洲已有上百年的应用历史,在我国饲料全面禁抗的大背景下,极具应用前景。解析全国栓皮栎壳斗水解单宁含量的地理变异规律,能够筛选出水解单宁较优产区,为提升我国单宁产品竞争力、研发自主品牌的水解单宁高端产品奠定基础。
此次栓皮栎种质资源采集,对于推进我国栓皮栎的遗传资源保护与利用、揭示栓皮栎重要性状遗传变异规律、挖掘特异种质具有重要意义。下一步,北京林业大学落叶栎研究中心将对采集到的栓皮栎种质资源进行鉴定评价与深入研究,立足“十四五”重点研发计划,为我国栓皮栎的保护与利用提供更加坚实的科学支撑。在此,也由衷感谢各地专家学者、领导以及林场工作人员的支持与帮助。在疫情肆虐的2022年夏季,中心能够克服重重困难完成栓皮栎种质资源收集,离不开全国各地林业人的责任与担当,我们相信,在全国林业工作者的共同努力下,我国栎类研究将迎来更加美好的明天。

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  1. CONNECT:[ UseTime:0.000446s ] mysql:host=127.0.0.1;port=3306;dbname=h_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000663s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000267s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000270s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000545s ]
  6. SELECT * FROM `set` [ RunTime:0.000230s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000628s ]
  8. SELECT * FROM `article` WHERE `id` = 468361 LIMIT 1 [ RunTime:0.000423s ]
  9. UPDATE `article` SET `lasttime` = 1770772997 WHERE `id` = 468361 [ RunTime:0.005293s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.004381s ]
  11. SELECT * FROM `article` WHERE `id` < 468361 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.002926s ]
  12. SELECT * FROM `article` WHERE `id` > 468361 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001021s ]
  13. SELECT * FROM `article` WHERE `id` < 468361 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.010140s ]
  14. SELECT * FROM `article` WHERE `id` < 468361 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.023871s ]
  15. SELECT * FROM `article` WHERE `id` < 468361 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.033827s ]
0.152999s