Journal of Oil Palm Research Vol. 28  December 2016 p.  442-451
DOI: https://doi.org/10.21894/jopr.2016.2804.05

EVALUATION OF BUNCH INDEX IN MPOB OIL PALM (Elaeis guineensis Jacq.) GERMPLASM COLLECTION

Author(s): FADILA, A M*; NORZIHA, A*; MOHD DIN, A*; RAJANAIDU, N* and KUSHAIRI, A*

Eleven oil palm (Elaeis guineen­sis Jacq.) germplasm col­lec­tions from Nige­ria, Cameroon, Zaire (now known as the Demo­c­ra­tic Repub­lic of the Congo), Tan­za­nia, Mada­gas­car, Angola, Sene­gal, Gam­bia, Sierra Leone, Guinea and Ghana were eval­u­ated at the Malaysian Palm Oil Board (MPOB) for bunch index (BI), i.e. the ratio of bunch dry mat­ter to total dry mat­ter pro­duc­tion. Besides fresh fruit bunch (FFB), yield esti­ma­tion of BI requires the mea­sure­ment of trunk height, trunk diam­e­ter, rate of frond pro­duc­tion and peti­ole cross-section. Four con­sec­u­tive years of FFB yield was used to cal­cu­late BI. The Tan­zan­ian germplasm showed the high­est BI and was sig­nif­i­cantly dif­fer­ent from other germplasm for both dura (BI = 0.53) and ten­eras (BI = 0.54) acces­sions. High vari­a­tion for BI among duras was noted in the Mada­gas­car germplasm (CV = 70.69%), while among ten­eras high vari­a­tion was observed in Guinea germplasm (CV = 43.34%). Broad-sense her­i­tabil­ity esti­mate of BI for Sierra Leone was high­est for dura (h2B = 75.27%) while that of Zaire was high­est for ten­era (h2B = 66.17%). Phe­no­typic cor­re­la­tions were high and pos­i­tive between BI and FFB yield com­po­nents. There­fore, increas­ing BI is likely to increase FFB yield. High BI palms (more than 0.6) would be intro­gressed into advanced breed­ing pop­u­la­tions to gen­er­ate high yield­ing plant­ing mate­ri­als. Addi­tion­ally, ten­era palms with high BI may also be mul­ti­plied by cloning.

Keywords: , , ,

Author Information
* Malaysian Palm Oil Board, 6 Persiaran Institusi, Bandar Baru Bangi, 43000 Kajang, Selangor, Malaysia. E-mail: fadila@mpob.gov.my


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