000			01614nam a2200253Ia 4500
008			220216s9999 xx 000 0 und d
100			_aPremakumari D
245		0	_aYield and anatomical characters in Hevea: A path coefficient analysis and characterisation of clones
260			_bIndian Journal of Natural Rubber Research _c1996
300			_a16-Dec
520			_aTen clones of Hevea brasiliensis were characterised for early yield, girth and bark anatomical traits. Genotypic correlations and direct/indirect effects of girth and structural traits with yield were estimated. Laticifer area index at the year of opening was the most reliable parameter for early prediction of yield which showed the highest positive correlation (r=0.691;P<0.01) and highest positive direct effect (1.832) on yield over the subsequent three years. The intensity of laticifer anastomosing and ray width also directly contributed to yield and were observed to be independent characters. The number of latex vessel rows showed significant positive correlation with yield (r=0.589;P<0.01) but its direct effect was negative. Correlation of girth, latex vessel density and latex vessel diameter with yield were not significant. These traits and the number of latex vessel rows contributed to yeild via laticifer area index.
650			_aBark anatomy
650			_aBark anatomy
650			_aHevea
650			_aHevea
650			_aLatex vessels
650			_aLatex vessels
650			_aYield
650			_aYield
700			_aMarattukalam J G
700			_aPanikkar A O N
700			_aSethuraj M R
942			_cAR
999			_c47112 _d47112