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Edison Purba Purba
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Agriculture, Biological Sciences & Forestry

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Germination seed response of Eleusine indica L. Gaertn to depth and buried time Astria Sari Munthe; Edison Purba Purba; Ratna Rosanti Lahay
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.243 KB) | DOI: 10.32734/jaet.v4i4.13571

Abstract

A population of Eleusine indica L. Gaertn multiple resistant biotype securred in an oil palm field in North Sumatra. Field experiment was carried out to determinate the effect of time of period and depth seed buried in the soil on germination, effect of seed position buried in the soil on their emergence and number of seed bank found in various depth of soil. The study was conducted at Agricultural Faculty, University of Sumatera Utara. This research used randomized block design with 3 unit and 4 replication, first unit was germination response of seed weed E. indica to dept buried time with 2 factors. The first factor was dept with 5 treatment i.e. 0, 5, 10, 15, and 20 cm. The second was buried time with 6 treatments i.e. 2, 4, 6, 8, 10, and 12 weeks. Second unit was germination seed response of E. indica to various depth with 5 treatment i.e. 0, 5, 10, 15, and 20 cm. Third unit was seed bank E. indica with 4 treatment i.e. 0-5, 5-10, 10-15 and 15-20 cm.   The results showed that the buried depth does not treatment affect the germination, but on buried time treatment affects on the germination. Seed germination buried for 12 weeks, number of seeds germination is higher than along 2, 4, 6, 8, 10 weeks. The depth of buried seeds (planting) effect on number of sprouts that appear on the surface of the soil. The highest number appears there are at 0 cm below the soil surface followed by 5 cm. The highest number of seed bank in the field are at a depth of 0-5 cm soil followed by a 10-15, 5-10, 15-20 cm. Keywords : Eleusine indica, buried time, depth
Distribution Of Multipple Herbicide Resistant Eleusine indica L. Gaertn. An Oil Palm Estate In North Sumatera ahmad bayu syahputra; Edison Purba Purba; Yaya Hasanah Hasanah
Jurnal Agroekoteknologi Vol 4, No 4 (2016)
Publisher : Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jaet.v4i4.13574

Abstract

Goosegrass (Eleusine indica) in a block of oil palm Estate at Serdang Bedagai, North Sumatera had been controlled using glyphosate and paraquat for more than 26 years continuously. Recently, it had been reported that the two herbicides failed to control the population. The estate consists of 4000 Ha or 437 blocks which had slightly different history in weed management. The objective of this study was to determine the distribution Eleusine indica Resistant to glyphosate and paraquat in the oil palm estate. Seed of  E. indica were collected from each block and tested for resistant to glyphosate and paraquat at rate 480 g.a.i / ha and 300 g.a.i/ha consecutinely. A long with the seeds from the estate, seeds of E.indica susceptible to glyphosate and paraquat which had been confirmed were also germinated for a comparison. Results showed that 58 populations from the Adolina estate. 57 populations resistant of  glyphosate and 1 population moderate resistantce of glyphosate. And 55 populations resistantce to paraquat and 3 populations moderate resistantce to paraquat.Keywords: Eleusine indica, glyphosate, paraquat, resistance
Co-Authors ahmad bayu syahputra Astria Sari Munthe Ratna Rosanti Lahay Yaya Hasanah