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. 2004 Jan;93(1):25–37. doi: 10.1093/aob/mch005

Table 1.

Size and abundance of starch grains located in sub‐apical pith parenchyma

March April July October December
Abundance(%) Size(µm2) Abundance(%) Size(µm2) Abundance(%) Size(µm2) Abundance(%) Size(µm2) Abundance(%) Size(µm2)
Juvenile 100 (II) 8·1 100 10·0 10 5·1 100 14·5 10 4·5
(± 2·2) (II) (± 2·5) (I) (± 0·8) (II) (± 2·7) (I) (± 0·6)
Adult male 10 3·3 50 6·1 100 14·2 10 3·3 10 3·5
(I) (± 0·8) (II) (± 1·1) (II) (± 2·8) (II) (± 1·0) (I) (± 0·7)
Adult female 10 3·3 10 5·9 100 15·2 50 5·5 10 4·5
(I) (± 0·7) (I) (± 1·3) (II) (± 3·0) (II) (± 1·5) (I) (± 0·8)

Grain size was evaluated by measuring the grain surface on longitudinal section.

Abundance was evaluated by calculating the percentage of cells containing amyloplasts and the number of amyloplasts per cell: (I), less than five amyloplasts per cell; (II), more than five amyloplasts per cell.