PERTUMBUHAN dan PRODUKSI TIGA VARIETAS TANAMAN PAK CHOY (BRASSICA CHINENSIS L.) PADA BERBAGAI NILAI ELECTRICAL CONDUCTIVITY LARUTAN HIDROPONIK.

Sjarif Avitijadi Adimihardja Nurkhotimah

Abstract

Pak Choy is one of the economic valuable vegetables in Indonesia. This
research was aimed to increase the growth and productivity of three varieties of Pak
Choi through the variation of electrical conductivity (EC) rates in the hydroponic
solution. The complete randomized factorial was used in ths research. They were three
varieties of he variety of Pak Choy (V1 is Green, V2 is Green Fut Choi, V3 is Green
Fortune) and four EC rates {1.5 (E1), 2.0 (E2), 2.5 (E3), 3.0 (E4) mS/cm}. The variety
of Pak Choy gave significant differentiation to all of the affect to the numbers of leaves,
root length and the numbers of chlorophylls. The regression analisys was showed that
increasing of the mg EC rates would increase the number of chlorophylls of all Pak
Choi varieties. The interaction between Pakchoi varieties and the EC rates show in
canopy diametesr, that the combination in V2, differences were found in E4 and E2 and
the best value was found in V2E4 at 10 DAP (Day After Planted). In 15 DAP, canopy
diameters in V2 and V3 were not different. In V1, differences were found among E1,
E2, and E4. The best value was found in V2E3 at 15 DAP.

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