Table 1.

F-values from two-way ANOVA on the effects of potassium rate (K0, K50, K100, K150, and K250) and shading treatment (no shading, shading 10 days after anthesis) on DMA-VO-M, DMTA, DMTP, grain yield, TKW, GN/S, and SN/P.

Variation	d.f.	DMA-VO-M	DMTA	DMTP	Yield	TKW	GN/S	SN/P
K application rate (K)	4	152.4**	8.6**	6.2**	250.8**	39.6**	22.3**	55.0**
Shading (S)	1	2539.4**	6.0*	17.5**	2107.9**	5365.2**	4505.3**	2.5NS
K × S	4	20.2**	1.3NS	3.5*	250.7**	45.6**	5.6**	28.0**

*, ** represent the test significant at the 5% level (P < 0.05) and 1% level (P < 0.01), respectively; NS, test non-significant at the 5% level. DMA-VO-M, Dry matter accumulation in vegetative organs at maturity; DMTA, Dry matter translocation amount; DMTP, Dry matter translocation percentage; TKW, Thousand kernel weight; GN/S, Grain number per spike; SN/P: Spike number per pot.