000			01399nam a2200193Ia 4500
008			220216s9999 xx 000 0 und d
100			_aSenevirathna A M W K Karunatillake P K W
245		0	_aEffect of different light regimes on above and below ground development of Hevea brasiliensis during early stage of growth
260			_bJournal of the Rubber Research Institute of Sri Lanka _c2009
300			_a19-Sep
520			_aAbove and below ground development of rubber at early stage of growth was compared in response to full sunlight, 33, 55 and 77;natural shades. Rate of leaf expansion, leaf number, leaf area, inter-whorl shoot length and number of leaf whorls developed decreased with increasing shade. However the thermal duration expressed as degree days for the leaf expansion was lowest in the highest shade treatment. Total and component dry matter of rubber decreased with increasing shade. Dry matter partitioning to roots was greater compared to leaves and stems during first seven months with an increasing trend towards the highest shade while decreasing the above to below ground development was prominent with an exponential increase in the plants grown under full sunlight.
650			_aAbove/below ground ratio
650			_aLeaf development
650			_aNatural shade
650			_aRoot length
700			_aPathirana P D
700			_aRodrigo V H L
942			_cJS
999			_c57793 _d57793