Kazuhito Kita

Learn More
We studied the effects of applying 50 kg(N) ha−1 year−1 of nitrogen (N) on needle photosynthesis, N allocation and nutrient content in the sun- and shade crowns of the hybrid larch F1 (Larix gmelinii var. japonica × L. kaempferi). The light-saturated net photosynthetic rate (P Nmax) was not significantly affected by N application or crown position, although(More)
Elevated CO 2 enhances the photosynthesis and growth of hybrid larch F 1 seedlings. However, elevated CO 2 -induced change of tree shape may have risk to the other environmental stresses. The hybrid larch F1 (Larix gmelinii var. japonica × L. kaempferi) is one of the most promising species for timber production as well as absorption of atmospheric CO2. To(More)
The hybrid between Kuril larch (Larix gmelinii var. japonica) and Japanese larch (L. kaempferi) is an important afforestation tree species in Hokkaido, Japan, because of its rapid juvenile growth, straight stem, and resistance to bark gnawing by voles. To produce desirable hybrid seedlings, precise seedling discrimination is essential. However, continuous(More)
A recently developed hybrid larch F1 (F1: Larix gmelinii var. japonica × L. kaempferi) is being planted widely in re- and afforestation projects in northeast Asia. Nitrogen (N) deposition to forest ecosystems has been rapidly increasing in this region, due mainly to industrialization and overuse of N fertilizer. Together with excess N, phosphorus (P) is(More)
Integrated research activities for supply of improved larch to tree planting: tree improvement, fl oral biology and nursery production Important note/À noter : The text presented in this proceedings has been compiled by Martin Perron. The texts are the sole responsibility of the authors. The text of this publication can be quoted giving reference. Its(More)
  • 1