Seed Yield and Quality of Three-Way Cross Hybrid Maize Production in South and Central Sulawesi of Indonesia
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Date
2013
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Badan Penelitian dan Pengembangan Pertanian
Abstract
Production of hybrids seed is technically similar to production of a breeder’s seed of Open Pollinated
Varieties. All agronomic management are carried out at each critical stage to maintain and preserve genetic purity
and morphological homogeneity. Particularly in producing hybrids seed, carefully arrange nicking-time of both parent
lines is essential. Research on the effect of three-way cross hybrid towards seed yield and quality was carried out
at two sites in Labuan Toposo, Donggala, Central Sulawesi and in Al Qomar Farmers Group, Takalar, South Sulawesi,
Indonesia from August to December 2010. Treatments are differences of female single-cross (BIMA-5) planting days
prior to male inbred line (MAL-01), i.e. 3 days, 4 days, and 5 days, with exception for Takalar site used 6 days instead
of 5 days. Results shows that 3 days female planting gave the highest seed yield in Donggala (4,85 t ha-1) also in
Takalar (3,04 t ha-1). Which mean 3 days is the best treatment to obtain full synchronization of flowering, thus gives
optimum yield for this three-way cross hybrid. Seed quality evaluation was carried out at ICERI’s Seed Testing
Laboratory, and the results shows that seed harvested from Donggala are more vigourus and viable. Also quality in
term of electrical conductivity seed from Donggala have low conductance compared to Takalar site, which mean
there was no leaching of seed organic substances thus seed are highly viable.