Judul: Jumlah Polen Kelapa Sawit dan Viabilitasnya pada Tubuh Kumbang Jantan Elaeidobius kamerunicus Faust.
Abstrak: Elaeidobius kamerunicus Faust. is a weevil pollinator of oil palm. These weevil transfer pollen from male to female inflorescences of oil palm (Elaeis guineensis). The aim of the research were to study pollen load and its viability on male weevils E. kamerunicus as a pollinator of oil palm. Male weevil E. kamerunicus was submerged in etanol 70% : gliserol (4:1) solution and was rotated during 24 hours. After those, weevil was outed, the solution was sentrifugated and pollen in each individual weevil was counted with haemacytometer. Other weevils were immobilized by ethyl acetate were counted of pollen loads in each body of the weevil. To measure viability pollen, were germinated in sucrose 8% and boric acid 15 ppm solution and were counted its viability after 2 hours of treatment. Result showed that male weevil E. kamerunicus carried 3258 pollen grains. Most pollen grains were carried by weevil in the elytra (1067 pollen grains), head (495 pollen grains), and abdomen (296 pollen grains), respectively. Less pollen (27 pollen grains) attached in antenna. The pollen shape of oil palm is triangel with aperture type, that is tricolpata, 38 μm in long and 30 μm in wide. In the germination process, pollen tube’s long between was 60 μm-700 μm. Pollen viability carried by male weevils was 74,18%.
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Judul: Demography and Population of Elaeidobius kamerunicus Faust (Coleoptera:Curculionidae) as a Pollinator of Oil Palm (Elaeis guineensis Jacq) in PT. Agri Andalas Plantation, Bengkulu Province
Abstrak: Elaeidobius kamerunicus is an insect pollinator of oil palm. These weevil live and thrive in the male flowers of oil palm. The aims of the research were to study demography and population of E. kameunicus in male flower of oil palm. Demography study of the weevil were observed in the laboratory. One individual male and female of weevil were reared in the box, feeding by one spikelet of male flower. Observation of demographic study were conducted from 2nd day after rearing, until the weevil died. Populations of E. kamerunicus in oil palm plantations were measured by using a sampling method. We selected nine spikelet per bunch of male flower and counted the number of weevil per spikelet. The number of weevil per spikelet and number of spikelet per bunch were counted to determine the number of weevil per bunch. We counted the numbers of anthesis male flower per hectare to determine the number of weevil per hectare. Environmental parameters i.e temperature, humidity, light intensity, and rainfall were measured. The relationship between weevil population and environmental parameters were analyzed by Principal Component Analysis (PCA). Results showed that weevil E. kamerunicus tooks 14-17 days to grow from egg to imago. Statistics demography of the weevil were: generation time (T) was 19 days, gross reproduction rate (G) was 11 individuals, the net reproductive rate (Ro) was 5 individual and intrinsic growth rate (r) was 0.24. Population of the weevil on oil palm age 3 and 6 years were higher in January (41.102 individuals per hectare) and February (153.226 individuals per hectare). While, the lower population of the weevil were found in March (22.618 individuals per hectare) and April (98.693 individuals per hectare). In average, fruit set of oil palm age 3 and 6 years were 82,8% and 83,3%, respectively.
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Judul: Perancangan lanskap resor di Hangzau Xixi Tourist Resort Hotel Group China
Abstrak: Resor merupakan salah satu sarana pendukung untuk memenuhi kebutuhan rekreasi. Lanskap resor merupakan hal yang penting untuk dipelajari guna menciptakan sebuah resor yang dapat memenuhi kepuasan rekreasi manusia, mengingat resor adalah objek wisata yang memaksimalkan potensi lanskap. Cina merupakan salah satu negara tujuan wisata yang sangat terkenal dengan objek dan atraksi kebudayaan dan filosofinya. Keunikan budaya tradisional Cina dan juga didukung oleh panoramanya yang indah menjadi nilai jual pariwisata yang tinggi bagi negara ini. Salah satu wilayah di Cina, tepatnya di Xixi, Hangzhou, provinsi Zhejiang yang merupakan wilayah wetland menjadi tujuan untuk pembangunan resor.
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