000			01951nam a2200229Ia 4500
008			220216s9999 xx 000 0 und d
100			_aSreelatha S
245		0	_aATP concentration in latex as an indicator for early evaluation of yield in Hevea brasiliensis
260			_bJournal of Plantation Crops _c2014
300			_a48-53
520			_aAdenosine 5 triphosphate (ATP) in the laticiferous tissues of Hevea brasiliensis plays a major role in biosynthesis through its direct involvement in metabolic pathways and indirectly through H+ATPase activity. A strong positive correlation was observed between dry rubber yield and latex ATP, when ATP was measured in the latex of ten Hevea clones with different yield potentials such as low, medium and high. The latex ATP was significantly high in clones with higher yield than medium and low yielding clones. The coorelation between same day latex yield and ATP during the peak yielding season (September - November) also showed a direct relationship. This study was extended to immature plants of the same clones to confirm the practical application of this finding in crop improvement programme. Latex ATP was analysed in two year old young plants and continued for five years to correlate with rubber yield of the mature trees in field trail. A positive correlation was noticed between ATP in young plants and mature tree rubber yield. Young plants of high yielding clones always showed higher latex ATP concentration. In view of the direct relationship with yield, significant differences between clones and its seasonal insensitivity, latex ATP could be used as an indicator for early prediction of high yield in Hevea.
650			_aATP
650			_aEnergy metabolism
650			_aHevea brasiliensis
650			_aLatex production
700			_aAnnamalainathan K
700			_aJacob J
700			_aKrishnakumar R
700			_aMercykutty V C
700			_aSimon S P
942			_cJS
999			_c54590 _d54590