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以采自日本不同地区的抗松材线虫病黑松品种“虹青”(Pinus thunbergii‘Hongqing’)种子为材料,研究不同基质处理下的种子出苗率、成苗率及幼苗生长的差异。结果表明:以蛭石为黑松容器育苗基质,除东京都町田市种子的成苗率低于净营养基质处理外,其出苗率、以及静岡县御殿场市、九州种子的出苗率和成苗率均高于净营养基质和河沙处理,其中九州种子的出苗率及成苗率最高,分别为62.7%和52.1%;河沙处理的出苗率和成苗率均最低;九州的种子质量最佳,播种于蛭石中的7个月幼苗平均高8.85 cm,地径为5.1 mm;东京都町田市的种子质量最差。采用蛭石为育苗基质,对立枯病进行早防早治,能大幅度提高黑松出苗率及成苗率。
The seeds of Pinus thunbergii’Hongqing ’(Pinus thunbergii’Hongqing’) collected from different regions of Japan were used to study the difference of seed germination rate, seedling emergence rate and seedling growth under different substrate treatments . The results showed that with the vermiculite as seedling substrate for Pinus thunbergii seedlings, except for the seedlings in Machida, Tokyo, the seedling emergence rate was lower than that in the net nutrition substrate, and the emergence rate and seedling emergence The rate of seed germination and seedling emergence were the highest in Kyushu, which were 62.7% and 52.1% respectively; the seedling emergence rate and seedling emergence rate of river sand treatment were the lowest; the seed quality of Kyushu was the highest The best 7-month-old seedlings planted in vermiculite were 8.85 cm high and 5.1 mm in diameter. The seeds in Machida City, Tokyo, were the worst. The use of vermiculite as nursery substrate, early blight against early blight, can significantly improve the black sprout emergence rate and seedling rate.