Pengaruh Pendidikan Kewirausahaan, Kebutuhan Akan Prestasi dan Efikasi Diri terhadap Intensi Berwirausaha Siswa SMA Muhammadiyah I Jakarta

Penelitian ini bertujuan untuk mengetahui pengaruh pendidikan kewirausahaan, kebutuhanakan prestasi dan efikasi diri terhadap intensi berwirausaha. Penelitian ini merupakan studi kasusdengan metode asosiatif interaktif. Teknik pengambilan sampel dilakukan dengan cara purposivesampling sebanyak 50 responden yaitu siswa/i SMA Muhammadiyah I Jakarta yang pernahmendapatkan pelajaran kewirausahaan. Pengolahan data yang dilakukan dengan program SPSS17.0 for windows. Koefisien determinasi (adjusted r square) diperoleh 0,767 artinya kontribusivariabel pendidikan kewirausahaan, kebutuhan akan prestasi dan efikasi diri terhadap variasivariabel intensi berwirausaha sebesar 76,7% dan sisanya sebesar 23,3% dipengaruhi oleh faktorlain yang tidak dimasukkan ke dalam penelitian. Persamaan regresi diperoleh Ŷ = 0,771 + 0,381X1 + 0,395 X2 + 0,356 X3. Berdasarkan uji t, semua variabel memiliki nilai signifikansikurang dari 0,05, sehingga semua variabel berpengaruh terhadap intensi berwirausaha. UjiANOVA (uji F) diperoleh nilai signifikansi 0,000. disimpulkan bahwa pendidikan kewirausahaan,kebutuhan akan prestasi dan efikasi diri secara bersama-sama berpengaruh signifikan terhadapintensi berwirausaha siswa/i SMA Muhammadiyah I Jakarta

Pengaruh Sarcotesta dan Kadar Air Benih terhadap Kandungan Total Fenol dan Daya Simpan Benih Pepaya (Carica Papaya L.)

There are phenolic compounds in sarcotesta of papaya seed which can act either as inhibitor or as antioxidant. The objective of this experiment was to study the effect of sarcotesta and seed moisture content on total phenolic content and seed longevity of papaya seed. The experiment was conducted in November 2004 - May 2005, at Bogor Agicultural University, by using papaya seed (IPB-1) harvested from Center for Tropical Fruit Studies orchard in Bogor. In this study, seeds were dried in the absence and presence of sarcotesta until 11-12% and 6-7% moisture content (mc). After drying, seeds were packed in sealed plastic bag and stored in ambient room until 0, 3, 6, 9, 12 and 15 weeks. Seed viability and total phenolic compound were evaluated every 3 weeks. Total phenolic content of seed with sarcotesta was higher (> 327mg/100g dry weight) than the seed without sarcotesta

Pengaruh Sarcotesta dan Pengeringan Benih Serta Perlakuan Pendahuluan terhadap Viabilitas dan Dormansi Benih Pepaya (Carica Papaya L.)

Improved seed longevity by seed drying and application of phenolic compound as natural antioxidant is the topic of this research. In many cases the sensitivity of papaya seed to drying is being the limit factor because of desiccation injury or induced dormancy. There is phenolic compound on the sarcotesta surrounding papaya seed which may act either as antioxidant or as germination inhibitor. The effect of sarcotesta and seed drying on viabillity and dormancy was studied. The experiment was conducted in July - October 2004, located at Bogor Agricultural University, used papaya seed (IPB-1) which harvested from Pusat Kajian Buah Tropika (PKBT) farm in Bogor. In the last study, seed was dried in the absence and presence of sarcotesta until 11-12% and 6-7% moisture content (mc). After drying, seed viability was measured by tetrazolium test. The hardness of seed was also measured using penetrometer. Seed germination was tested by (1) soaking on 10% KNO3, (2) scarification on water using electrical stirrer, (3) soaking on 10% KNO3 with scarification using electrical stirrer, (4) scarification on the hot water (50oC) followed by soaking on 10% KNO3. In the absence of sarcotesta, the viability of 6-7% mc seed was as high as 11-12% mc seed. There was neither viability reduction nor induced dormancy. Whereas in the presence of sarcotesta, there was also no viability reduction but the dormancy was induced. The dormancy of seed with 11-12% mc was longer than seed with 6-7% mc. Scanning electron microscopy images showed that sarcotesta was removed by cleaning treatment before drying. On the contrary, sarcotesta was not completely removed from the seed and became more impermeable when cleaning was done after drying.This research can not suggest the most effective pre-treatment to break the dormancy. The mechanism of the dormancy is discused