Described herein is an integrated clamping and clinching device for sheet-metal panels which simultaneously performs a clamping operation on two or more panels in the precise assembly condition, and application of at least one clinching point for obtaining joining of the panels. Here, the first and the second battery pack are different in kind. Targeted RNAi of PHYA1 genes in cotton suppressed expression of PHYA1 andor PHYB, resulting in over-expression of the remaining PHYA2BCE genes.