000			02089nam a2200217Ia 4500
008			220216s9999 xx 000 0 und d
100			_aXiongting Chen
245		0	_aPlanting material of Hevea brasiliensis with high yield and fast growth: Somatic plants
260			_bProceedings of IRRDB Conference: NR Industry: Responding to Globalization, 7-8 September 2004, Kunming International Convention & Exhibition Center, China. pp.53-57.
520			_aAnther somatic plants were produced through embryo-genesis by in vitro culture with the anther as the explants, and their developmental stages were rejuvenated from mature type. These plants, obtained from micro-propagation in vitro with the young anther somatic plants as the explants, showed juvenile characteristics, shared uniform genetic properties when obtained from the same donor, and were self-rooted. Field trials of the self-root juvenile-type clones, juvenile-type clones and their donor clones (control) were arranged. Results showed that 50 cm above gound, the average stem girths of the micro-propagated self-rooting juvenile clones and the anther somatic plants were respectively 24.7;and 9.1;-20.2;bigger than that of the controls. The self-root juvenile type clones produced an average dry rubber yield per tree per year 129.9;-146.3;more than the donor clones did in the first 5 years. In addition, the characteristics of juvenile type clones one kind of budding which the bud-patch were taken from the Anther somatic plants were better than their donor clones too. These results indicate that the self-root juvenile type clone and the juvenile type clone of Hevea brasiliensis are good planting material with fast growth and high yield. They will become the new planting material in place of seedling and mature type clone.
650			_aFast growth
650			_aGigh yield
650			_aHevea brasiliensis
650			_aJuvenile type clone
650			_aSelf-root juvenile type clone
650			_aSomatic plants
700			_aHudie Wu
700			_aXiujuan Zhang
700			_aZeyun Wang
942			_cJS
999			_c65145 _d65145