000			01517nam a2200217Ia 4500
008			220216s9999 xx 000 0 und d
100			_aVinod K K
245		0	_aPerformance analysis for wintering pattern in Hevea brasiliensis clones
260			_bIndian Journal of Natural Rubber Research _c1996
300			_a44-47
520			_aA study was undertaken to group rubber (Hevea brasiliensis) clones based on their wintering behaviour in Tripura, one of the rubber growing areas of North East India. Fifteen clones from a clone evaluation trial were scored for the wintering pattern at weekly intervals for six weeks from December to Fubruary during 1988-89, 1989-90 and 1991-92 period. Wintering pattern of clones was uniform for all the years under study. Mean weekly scores were used for clustering process. Three distinct clusters of early, intermediate and late wintering clones were obtained viz, (i) RRII 105 and RRIC 105, (ii) RRIM 600, PB 86, GT 1, RRIC 52 and PB 235 and (iii) RRII 118, RRIM 605, GI 1, Harbel 1, RRII 5, PB 5/51 and RRIM 703. The remaining clone, RRII 203, was found to fall in between the second and the third clusters. The results can be used in characterising clones as well as selecting clones for establishing polyclonal breeding gardens.
650			_aCluster analysis
650			_aHevea brasiliensis
650			_aTripura
650			_aWintering
700			_aKrishnakumar A K
700			_aMeenattoor J R
700			_aPothen J
700			_aSethuraj M R
942			_cJS
999			_c64683 _d64683