RESPON PERTUMBUHAN DAN HASIL TIGA VARIETAS KEDELAI (Glycine max [L] Merr.) PADA BEBERAPA FRAKSI PENIPISAN AIR TANAH TERSEDIA
ABSTRACT: The aims of this
research was to find out the effect of available soil water depletion on the
growth and yield of three varieties of soybean (Glycine max [L] Merr.). This
study used a factorial in a completely randomized design (CRD) with 2 factors,
namely factor I (Available soil water depletion fraction, p) and Factor II
(Variety, V). Each treatment consisted
of 3 levels,
factor I consists
of P1(0.2), P2(0.4)
and P3(0.6) of
available soil water depletion, and factors II consists of
three variety, Wilis (V1), Kaba (V2) and Tanggamus (V3), with repeats 3 times. Reference
evapotranspiration measurements on P(0.2) is done using the grass plant. The
results showed that treatment of available soil water depletion fraction (p),
varieties, and their interactions were not significantly different, on the
growth and production. All three varieties of plant did not experience stress
during growth and development stage until harvest. The highest production was
in Tanggamus varieties (V3) in P1(0.2) of 17.86 g/pot with a total of 80.430 ml
of irrigation water, followed by Kaba (V2) on P1(0.2) 15.23 g/pot with total
irrigation water 75.800 ml and Willis (V1) on P3(0.6) 14.96 g/pot with a total
of 75.600 ml of irrigation water. The smaller of available soil water depletion fraction the
higher of evapotranspiration (ETc). Crop yield response factor to water (Ky)
greater than 1 (Ky>1), this means that the decrease of relative production
larger than decrease of relative evapotranspiration.
Penulis: Wawan Setiawan,
Bustomi Rosadi, M. Zen Kadir
Kode Jurnal: jppertaniandd150016
