促进种子园丰产、稳产的技术措施周凤娴我区种子园建设始于７０年代，８０年代以来得到较快发展。截至“八五”期末，全区共选择优树１１６６株，建立优树收集区２８．４公顷，种子园３４９．３公顷。目前，绝大部分种子园虽已进入结实期，但许多达到结实年龄的种子园产量... Technical Measures for Promoting High Yield and Stable Seed Production in Seed Garden Zhou Fengxian The construction of our seed orchard started in the 1970s and has been growing rapidly since the 1980s. As of the end of the “Eighth Five-Year Plan” period, 1166 superior trees were selected in the region, and 28.4 hectares of superior tree collection areas and 349.3 hectares of seed orchards were set up. At present, the vast majority of seed orchards have entered a period of sturdiness, but many seed orchard production to reach the age of strong ...