Báo cáo lâm nghiệp:"Seedling root growth of six broadleaved tree species grown in competition with grass under irrigated nursery conditions" pptx

... primarily to investi- gate some of the changes that occur in the seedling root sys- tems of 6 species of forest tree (Tab. I) when grown in compe- tition with grass under nursery conditions, and secondarily whether ... 10.1051/forest:2003052 Original article Seedling root growth of six broadleaved tree species grown in competition with grass...

Ngày tải lên: 08/08/2014, 01:21

... traits of tropical rainforest seedlings studied here were in agreement with general trade-offs since carbon assimilation increases with increasing N and SLA, and decreases with in- creasing C and ... Then, in this study, potted seedlings of 22 abundant canopy tree species of the rainforest of French Guiana were grown in a glasshouse under common environmental cond...

Ngày tải lên: 07/08/2014, 16:20

... of A. mangium see- dlings with damaged and intact top shoots, in: Ministry of Forestry of Indonesia (Ed.), Trials established in 1986–1987 in the Mecha- nized Nursery and Plantation Project in ... our results with A. mangium grown in aeroponic culture. The per- centage survival rates after transplanting were comparable with the 97% obtained with the use of contain...

Ngày tải lên: 08/08/2014, 00:22

... pine seedlings which were in the advanced phase of height growth at spring planting. Height in- crement of containerized Scots pine seedlings from spring outplanting with the application of ... frequently in beech seedlings and in spring outplant- ing with Ectovit application in bareroot pine. With regard to the short time after seedling out- planting the assessment...

Ngày tải lên: 07/08/2014, 10:21

... diameter increment; BALsyl: competition index of P. sylvestris; BALnig + acc: competition index of P. nigra and accompanying species; BALthin: 10-year thinned competition; GI: stand growth index; ... diameter increment; BALnig: competition index of P. n i gra ; BALsyl + acc: competition index of P. sylvestris and accompanying species; BALthin: 10-year thinned competition...

Ngày tải lên: 08/08/2014, 01:21

... analysis. Our interpretation of the data is that the efficiency of root system in terms of plant growth remains stable at least in that first growing period of plant in the forest disregarding their ... plant into soil are steadily growing and be- come a relatively bigger part of the root system not contributing to plant growth, one could expect a decrease of efficienc...

Ngày tải lên: 07/08/2014, 03:22

... slight acceleration of bud breaks (3–5 days) and subsequent significant stimulation of initial shoot growth. Shoot growth especially of sun-exposed shoots of trees grown in sparse stand density ... changes in a grassland ecosystem. In: Proceedings of the National Academy of Sciences of the United States of America, 103: 13740–13744. F P. (2000): Nitrogen t...

Ngày tải lên: 07/08/2014, 03:22

... were included in the clusters together with trees from unthinned control plots 1c. Variability of growth response of pine stands to climate characteristic in relation to thinning Variability of ... Climate and growth of Pinus sylvestris at its upper altitudinal limit in Scotland: evidence from tree -growth rings. Journal of Ecology, 78: 601–610. G L.J. (19...

Ngày tải lên: 07/08/2014, 10:21

... cells with the dominant function of water and minerals supply. e ratio between the fine root length and the number of root tips is an indicator of the intensity of the fine root forking. A ... their length. With the increasing value of the fine root length the number of root tips increases as well. Therefore the highest frequency of root tips was recorded i...

Ngày tải lên: 07/08/2014, 10:22

Ngày tải lên: 07/08/2014, 16:20