Abstract
In a greenhouse study, individual kernel moisture content was measured for the main stem, and for primary, secondary, and tertiary tillers in five plants (replicates) per harvest day for nine harvest days. One of the objectives was to determine whether the multimodal distribution of number of kernels versus moisture content observed in the field (Kocher et al., 1990; Siebenmorgen et al., 1992) could be attributed to the location where the seed was borne with respect to main stem or tillers. Results and analysis of the data revealed that the main stem and primary and secondary tillers exhibited very similar, multimodal distribution patterns. Therefore, the different moisture content peaks or modes could not be explained by main stem or tiller influence. However, a possible explanation of the multimodal frequency distribution pattern, based upon the change in moisture content of an individual rice kernel during its development, is presented.
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