雪藏油松种子方法好

• 作 者: 胡子文
• 机 构: 山西省偏关县老营林场
• 出 处: 林业科技通讯
• 发表日期: 1979年12期
• 关键词: 油松 产苗量 播种苗 温汤浸种 生长期 幼苗 地径 偏关县 茎杆 色泽

偏关县老营林场,对油松种子雪藏试验表明,雪藏的种子比温汤浸种的出苗提早20天左右,而且出苗整齐,出苗率达80%左右。由于出苗早,延长了生长期,幼苗生长健壮,增强了抵抗能力。雪藏的种子幼苗色泽正常,茎杆粗壮,没有立枯病危害。据1978年11月的调查,雪藏种子的两年生播种苗,平均苗高16.2厘米,地径0.37厘米,每亩产苗量30.5万株;三项指标分别比温汤浸种的提高0.9厘米、0.11厘米和9万株。

Pinyou County Laoying Farm, the pine seeds of snow experiments show that the seeds of snow than soaking seedlings emergence of early 20 days or so, and the emergence of neat, about 80% of the emergence rate. As early emergence, prolong the growth period, robust seedling growth, increased resistance. Snow seeds seedlings normal color, stalks thick, no damping off blight. According to a survey conducted in November 1978, the seedlings of two-year-old sowing seeds of snow seeds had an average seedling height of 16.2 cm and a ground diameter of 0.37 cm with a yield of 305,000 mu per mu. Three indicators were 0.9 cm and 0.11 cm And 90,000.