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- ItemPlanting System and Mulch Related to Growth and Results Corn in the of Land Slope of Riau Province(Badan Penelitian dan Pengembangan Pertanian, 2013) YunizarRiau Province has about 49% of dry land, which has a large partly undulating topography, for it to overcome the low yield of corn in this area conducted assessment cropping systems and mulching on maize cultivation. The purpose of this study is to find ways of planting and mulching the right dose in the cultivation of maize on sloping land in Riau Province that carried out in Kepenuhan, Rokan Hulu, on MT 2011. Regional studies have Ultisol soils with agro climatic zones B1. The study was arranged in a randomized block design with two factor. Factor I is cropping systems consisting of: (1) parallel to the slope cropping system, with distances in rows 20 cm, one plant per hill and the distance between rows of 75 cm, (2) planting system parallel to the slope, with distance role in rows 40 cm, two plant per hill and row spacing of 75 cm, (3) System tiles, 20 cm x 75 cm, one plant/hole and (4) Spacing 40 cm x 75 cm, two plants/hill. Factor II is a dosage of rice straw mulch, which consists of (a) 2 t/ha, (b) 4 t/ha ,and (c) 6 t/ha. The result showed the system of planting 1 (parallel to slope planting system, with the distance in rows 20 cm, one plant per hill and the distance between rows 75 cm) with rice straw mulching as much as 6 t/ha, giving the best growth and yield compared to other treatments.
- ItemHybrid maize, economic analysis, South Sulawesi(Badan Penelitian dan Pengembangan Pertanian, 2013) FaesalMaize productivity increasingin Indonesia must be effortto keep up high demand. Expansion maize growing in acid soil will be a big potential, but acid soil degree in this areais the main constrain to produce maize. Create hybrid lines as new candidate varieties which appropriate in the acid soils isthe ones choice. Yield productivity of maize lines which tested is early maturity acid soil tolerance.Researchwas conducted in Tappalang DistrictMamujuRegency West Sulawesifrom May-August 2010. The research arranged based on randomized block design, treatments consist of 9 pure maize lines and 2 early maturity hybrid maize (AS-1 and Bima-3Bantimurung) and 1 open pollinated maize (Sukmaraga) as the acid soil tolerance check. So there were 12 treatments and 3 replications. This research fertilized of 300 kg ureaha-1+200 kg phonskaha-1+100 kg KClha-1.The results showed that there were 5hybrid maize lines produce grain yield more than 7ha-1and not significantly different to AS-1 (7.83ha-1), Bima-3Bantimurung (7.30ha-1) as early maturity cultivar check, and Sukmaraga (7.42ha-1) as acid tolerant cultivar check. The promising maize lines is GM1, GM2, GM3, GM8 and GM9 which grain yield potential is 8.05 t, 7.70 t, 7.99 t, 8.15 t and 7.90t/ha respectively.
- ItemEvaluationof Maize Production Technology Component to Increase Farmer’s Income in Rainfed Low Land(Badan Penelitian dan Pengembangan Pertanian, 2013) Hadijah, AD; Herman SubagioThe government of Indonesia has paying attention to increase maize production by both expanding planting acreage and use more intensive agricultural methods to grow maize in order to meet the demand for food, feed, industry and export. A strong demand and good domestic prices had been attracting farmers to grow hybrid maize and its acreage will keep increasing particularly in South Sulawesi Province. The use of hybrid seed in maize production have been tested in two regenciesi.eBantaeng and Bone respectively. The result indicated that the cost of hybrid maize production account for approximately 30% of the total production cost. Most of the cost used to afford certified hybrid seed and fertilizer. Total cost of production was Rp 3,551,800 whereas the revenue gained was about Rp 7,385,000. Thus the use of hybrid maize in Bantaeng could benefit the farmers of about Rp 3,833,120. B/C ratio gained from maize production was 2.08. In addition to Bone, total cost production was 1,030,000 with the revenue of about 10,384,000. B/C ratio gained from maize production was 7.12, indicating that the use of hybrid seed in maize production would benefit farmers.
- ItemEvaluation of Resistance of Super and Ultra Early Maturity Maize to Downy Mildew (Peronosclerospora spp)(Badan Penelitian dan Pengembangan Pertanian, 2013) Andi Takdir M.; SoenartiningsihDowny mildew (Peronosclerospora spp) is one of the major diseases in maize production. The objective of this study was to evaluate the resistance of super and ultra early maturity maize against downy mildew. The experiment was conducted from May to July 2012 at the experimental field of Indonesian Cereal Research Institute in Maros, South Sulawesi Indonesia. There were 50 varieties and lines evaluated, which consisted of 25 BGJH varieties and lines and 25 BDLM varieties and lines. There were two check varieties used, namely Anoman– 1 as susceptible check and Bima 10 as resistance check. The experiment was arranged in a randomized block design with three replications. The result showed that from BGJH varieties/lines there were three varieties considered to be resistant to downy mildew disease, namely: BGJH 011, BGJH 017 and BGJH 020. 16 varieties and lines were categorized as moderately resistant and one variety, BGJH 013, was susceptible. There were five highly susceptible varieties namely BGJH0 12, BGJH 014, BGJH 023, BGJH 024, BGJH 025. Meanwhile, in the BDLM varieties/lines there were four varieties considered to be resistant, namely BDLM 005, BDLM 011, BDLM 012 and BDLM 018. Sixteen varieties/lines showed moderately resistance reaction, namely BDLM 001, 002, 003, 004, 006, 007, 008, 009, 013, 014, 015, 016, 017, 019, 020, 021 and 025. The highly susceptible varieties were BDLM 010, BDLM 022, BDLM 023, BDLM 024. The resistant genotypes will be used for varietal improvement in maize breeding programs.
- ItemIdentification of Super and Ultra Early Maturity Maize Lines Resistance Against Leaf Blight Disease (Bipolaris maydis)(Badan Penelitian dan Pengembangan Pertanian, 2013) Soenartiningsih; R. Neni Iriany; Andi Takdir M.The leaf blight disease is one of the major maize diseases and causes yield losses up to 70% particularly when it infects maize planting on generative phase. Therefore, The maize variety which is resistant to this one is needed. The research was aimed to identify the maize variety resistance against leaf blight disease caused by Bipolaris maydis. This study was carried out at Maros Experimental Farm from May to July 2012. A randomized complete block design with maize lines as block and three replications was utilized. Natural infection was treated on maize lines. The result revealed that from 20 BLPT lines, only BPLT 004 showed highly resistant, five lines i.e. BPLT 001, BPLT 003, BPLT 007, BPLT 008 and BPLT 012 were resistant, seven lines indicated moderately resistant reaction namely BPLT 002, 005, 009, 010, 017, 019 and 020, while BPLT 006, 013, 014 and 016 were susceptible and BPLT 011, 015 and 018 were highly susceptible. From other 20 BJMN lines, BJMN 008, 010, 012 and 013 showed resistant to leaf blight with varied intensity from 10% to 20%. Nine lines namely BJMN 001, 002, 006, 007, 014, 015, 016, 018 and 020 indicated moderately resistant, while BJMN 003, 005 and 019 were reacted susceptible to leaf blight disease and the highly susceptible lines were BJMN 003, 005 and 019. The resistance genotypes will be used as donor parents in the varietal improvement to obtain maize varieties with high yield and resistant to leaf blight disease.