Pola Perkembangan Biji dan Perubahan Mutu Benih Berbagai Kultivar Sorgum (Shorgum bicolor L.)”.
ABSTRAK: The objective of this
research was to determine seeds development pattern andseed quality changes
during the development of some cultivars of sorghum. Theresearched was carried
out at Faculty of Agricultural experiment station, Universityof Riau in
Pekanbaru. The field experiment was arranged in a randomized blockdesign,
consisting of four sorghum cultivars in three replications. The cultivars were K1=
Galur Patir 9, K2 = Galur Patir 10, K3 = Varietas Pahat K4 = Varietas Mandau.Parameters
observed were seed fresh weight, seed dry weight, water concentration,dry
matter accumulation rate, effective filling period, seed yield m-2, seed
weight,first count test, standard germination test, and vigor test. Seed were
harvested everyfive day beginning from 5 days after antheses (DAP) to 35 (DAP).
Data wereanalyzed by using analysis of variance at significant level of 5%. The
results showed that the pattern of seed development of all cultivars increased
slowly from 5 to 10DAP, then increased very rapidly from 10 to 20 DAP, and
reached the maximum value at 25 DAP. Following that time the dry tent to
decrease until 35 DAP. Whilethe water concentration decreased very rapidly from
5 to 25 and decreased from 25DAP to 35 (DAP). Dry matter accumulation rate
(KPBK) of all cultivars ranged from1.15 to 1.22 (mg/seed/day), and effective
filling period was about 22 days. Seed quality at harvest was very high for all
cultivars but, Patir 9 showed lower seed vigor compared to Pahat, Mandau and
Patir 10. Grain yield per m2 was relatively equal among all cultivar with yield
potential off around 3.18 to 4.9 tones per hectare.
Penulis: Agus Sanoto, Aslim
Rasyad, Elza Zuhry
Kode Jurnal: jppertaniandd170474
