000			01393nam a2200217Ia 4500
008			220216s9999 xx 000 0 und d
100			_aSobhana P
245		0	_aVariability in rooting response of air-layers in twelve clones of Hevea brasiliensis
260			_bJournal of Plantation Crops _c2000
300			_a191-195
520			_aRooting response in air layers of twelve clones of Hevea brasiliensis was evaluated. Variability in rooting per cent of these clones ranged from 0-95;. Survival of the transplanted air-layers also showed considerable variability. Based on rooting success in one year old plants, six clones were grouped as easy-to-root types (above 75;rooting success), two clones as medium-to-root (40.75;rooting) and four clones as hard-to root (below 40;) types. It was observed that age of the plant has a definite effect on per cent of rooting and survival of rooted layers. Except two clones, one and two year old plants of the other clones gave better rooting per cent and survival of rooted layers of these clones at all the three ages studied. Survival of rooted layers and mean number of roots per layer also showed positive relationship.
650			_aAir layering
650			_aHevea
650			_aRooting
650			_aVariability
700			_aJacob J
700			_aRajagopal R
700			_aSethuraj M R
700			_aVijayakumar K R
942			_cJS
999			_c72088 _d72088