RELATIONSHIP BETWEEN CHLOROPHYLL CONTENT AND CHLOROPHYLL FLUORESCENCE PARAMETERS ON FRUIT YIELD OF Jatropha curcas L.
Keywords:
Jatropha curcas L, chlorophyll fluorescence, SPAD, fruit yieldAbstract
Relationship between chlorophyll content and chlorophyll fluorescence parameters on fruit yield of Jatropha curcas L., accessions KUBP20-4, KUBP78-9 and KUBP16, was studied. The experiment was conducted at Kamphaeng Saen, Nakorn Pathom during June-October 2010, laid out in Randomized Complete Block design with 6 replications. Chlorophyll fluorescence parameters and chlorophyll content measured with SPAD meter were assessed and elucidated. The result showed that fruit yield was highest for KUBP78-9 with statistically significant difference from KUBP16 variety and KUBP20-4. Chlorophyll fluorescence parameters, ΔF/Fm’ and qP, were found significantly different among accessions. ΔF/Fm’ and qP value of KUBP78-9 were highest, which were of 0.801 and 0.800, respectively. The ΔF/Fm’ and qP were lowest in KUBP20-4. Similar response was also observed for the leaf chlorophyll content. This result indicated that there was a relationship between chlorophyll fluorescence parameter, chlorophyll content and fruit yield of J. curcas, which could be developed as a potential method to assess growth and fruit yield.
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