Keragaman arthropoda herbivora dan musuh alami pada tanaman padi lahan rawa di Rowopulo Kecamatan Gumukmas Kabupaten Jember

Muflih Adnan, W. Wagiyana
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引用次数: 1

Abstract

Rowopulo is one of the swamps in Gumukmas, Jember Regency with its unique soil in the form of peat soil that floats on water and by the community used for rice cultivation, whose production is influenced by the presence of Plant Pests, which is dominated by the Herbivod Arthropods. The presence of herbivorous Arthropods in the swampland rice ecosystem can be suppressed by the presence of useful Arthropod populations such as predators, parasitoids, and pollinators. Related to this, a study was conducted to find out the diversity of Arthropods found in swampy rice plantations. The study began with a land survey, then the determination and marking of observation plots on the map and matching these locations using GPS (Global Positioning System). Observations were made on plots that were made based on the extent of rice plants that were still in one stretch and the same irrigation flow. Each plot was observed ten times at 7-day intervals from rice plants aged 14 days after 77 days after planting. Arthropod sampling using sweep net method. Catching arthropods are put into vials of 5 ml size and then identified up to family level, and the diversity, evenness, and wealth index of the species is calculated. The results of research on swamp rice plants contained 37 families. Ten families act as herbivorous Arthropods, 15 families as predators, six families as parasitoids, one family as pollinators, and five families as detritivores. The highest diversity index in plot 1 was 2.95, while the lowest in plot 2 was 2.70, with the medium category for all observation plots. The magnitude of the diversity index is due to the dominance of only a few orders, such as Orthoptera and Diptera; the highest species wealth index in plot 3 with a value of more than 4 in the high category; Evenness index of all observation plots has a value of less than 1 with uneven categories.   Keywords: arthropods, diversity, natural enemies, swamp land
Rowopulo是Jember Regency Gumukmas的沼泽之一,其独特的土壤形式是漂浮在水面上的泥炭土,并被用于水稻种植的社区所使用,其生产受到植物害虫的影响,其中以食草节肢动物为主。沼泽水稻生态系统中草食性节肢动物的存在可以被有用的节肢动物种群(如捕食者、拟寄生物和传粉者)的存在所抑制。与此相关,一项研究是为了找出沼泽水稻种植园中节肢动物的多样性。研究从土地调查开始,然后在地图上确定和标记观测地块,并使用GPS(全球定位系统)对这些位置进行匹配。观察是基于水稻种植的范围,仍然在一个延伸和相同的灌溉流量。每隔7天观察10次,每隔7天从种植后第14天的水稻植株开始观察。节肢动物取样采用扫网法。将捕获的节肢动物装入5毫升大小的小瓶中,然后按科级进行鉴定,计算物种的多样性、均匀性和财富指数。研究结果显示,沼泽稻属植物共37科。10科为食草节肢动物,15科为捕食者,6科为拟寄生物,1科为传粉者,5科为食腐动物。样区1多样性指数最高为2.95,样区2多样性指数最低为2.70,所有样区均为中等。多样性指数的大小主要是由于直翅目和双翅目等少数目占优势;样地3的物种财富指数最高,值大于4,属于高类;所有观测样地均匀度指数均小于1,类别不均匀。关键词:节肢动物;多样性;天敌
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