在中共中央《关于召开全国科学大会的通知》精神鼓舞下,在华主席有关科技工作一系列指示和科技界一片赶超声势鼓舞下,为了适应形势的发展,加强科技协作,交流第二次全国林木良种会议以来各省北方松类良种选育工作进展情况,把北方松良种选育研究工作向前大大推进一步,北方松良种选育协作组于去年12月中旬在太原召开各省负责单位碰头会议。参加这次会议的有黑龙江、吉林、辽宁、内蒙古、陕西、新疆、青 Encouraged by the “Notice on convening a National Science Conference” of the CPC Central Committee and encouraged by Chairman Hu’s series of instructions on scientific and technological work and the catch-up and surpass in the scientific and technological circles, in order to adapt to the development of the situation, strengthen scientific and technological cooperation and exchange views on the second national Since the forest seed improvement conference, the progress of breeding pine seed in northern China has been greatly promoted. The breeding research work of P. nigra is one step forward. The cooperation team of Northern Pine seed breeding was held in Taiyuan in mid-December last year. Participate in the meeting of Heilongjiang, Jilin, Liaoning, Inner Mongolia, Shaanxi, Xinjiang, green