Pengaruh Asam Asetat Sebagai Herbisida Pratumbuh Terhadap Perkecambahan Jagung
Abstract: Profitable crop
production starts with a weed control program that includes pre-emergence
herbicides to deliver long-lasting, residual weed control. Pre-emergence
herbicides are applied to prevent the germination of weed seeds. The study was
conducted to determine the effect of
acetic acid as a pre-emergence herbicide on maize germination. Pots experiment
was conducted on August until September 2012. The experimental design used was
Completely Randomized Design (CRD) single factor in four replicates. The
application of pre-emergence acetic acid at several concentration, i.e. control (no
acetic acid) 0%, 10% acetic acid and 20%
acetic acid. The result showed that the pre-emergence aplication at 10% and
20% of the glacial acetic acid solution lowered pH were 5,12 and 5,43
respectively at one week after application, so that inhibited maize
germination. No shoots and roots were grew. This was due to the increase of
electrical conductivity (EC) or electrolyte leakage caused by the high
permeability of the damaged membrane of
seed. The EC of control treatment was 11μS/cm g, compared to 10 and 20% treatment of acetic acid were
36 μS / cm g and 55 μS / cm g EC respectively. Increasing concentration of
acetic acid caused the higher of protein content leaked, i.e. 7,95%, 7,32% and
7,03% respectively for without acetic acid treatment, 10% and 20% acetic acid.
Acetic acid also inhibited respiration
rate of maize seed, where the higher concentration of acetic acid
produced the lower respiration rate, i.e. 31.63 mg/g/hour, 12.38 mg/g/hour
and 2,75 mg/g/hour respectively for
without acetic acid treatment, 10% and 20% acetic acid.
Penulis: Hidayat Pujisiswanto,
Prapto Yudono, Endang Sulistyaningsih, Bambang Hendro Sunarminto
Kode Jurnal: jppertaniandd150009
