クロマツ種子の大小が発芽力並びに稚苗成育におよほす影響

その他

We collected cones from a Kmomatsu tree in November 1, 1955. Seeds were taken out and sawed in order, according to the sitting place on a cone on April 24, 1957. And germinative vigor of seeds and seedling height were measured after grades of seed weight. Results obtained were as follows :
(1) The rates of non-germination and lost seedlings were higher in the lighter seeds than in the heavier. But we couldn't find correlation between geriminative vigor and weight of seed either in all seeds we tested or among seed groups originated with the cone.
(2) Taller seedlings were inclined to be found grown from heavier seeds, shorter ones from lighter.
(3) We couldn't recognize enlarged variance of height in accordance with seed weiglht among seedlings.