PENGARUH FORMULA LARUTAN PERENDAM DAN SUHU PENYIMPANAN TERHADAP VASE LIFE BEBERAPA BUNGA POTONG

LUTFI SUSANTO, Dr. Ir. Suparmo, M. Sc.

2013 | Skripsi | TEKNOLOGI PANGAN & HASIL PERTANIAN

Pengaruh beberapa bahan kimia terpilih dan suhu dingin terhadap vase life beberapa bunga potong telah dipelajari. Larutan pre treatment yang digunakan adalah gula pasir 20%, gula pasir 20% ditambah asam sitrat hingga pH 3.5, dan asam sitrat hingga pH 3,5. Larutan treatment yang digunakan yaitu gula pasir 2%, 4%, 6% ditambah 0,1 % klor dan asam sitrat hingga pH 3,5. Perlakuan kombinasi yang digunakan yaitu gula pasir 2%, 4%, 6% dikombinasikan dengan suhu dingin (18±2 oC). Air digunakan sebagai kontol untuk semua perlakuan. Hasil penelitian menunjukkan bahwa semua perlakuan dapat meningkatkan vase life bunga potong mawar, gladiol, dan krisan dibandingkan dengan kontrol tiap bunga. Vase life bunga potong sedap malam tidak berbeda dengan kontrolnya dalam perlakuan larutan perendam yang digunakan. Vase life bunga potong kenikir mengalami penurunan seiring dengan peningkatan kosentrasi gula pasir. Perlakuan suhu dingin meningkatkan vase life semua bunga potong. Kombinasi dari treatment dan suhu dingin dapat meningkatkan vase life semua bunga potong. Kesimpulan yang diperoleh adalah perlakuan kombinasi antara treatment dan suhu dingin dapat digunakan sebagai penanganan pascapanen untuk menunda kelayuan bunga dan memperpanjang vase life bunga potong mawar, gladiol, krisan, sedap malam, dan kenikir.

Effects of some selected chemical agents and cold temperature on the vase life of some cut flowers had been studied. The pre treatment solution being used were 20% sugar, 20% sugar plus citric acid until pH 3,5, and citric acid until pH 3,5. The treatment solution being used were 2%, 4%, 6% sugar plus 0,1 % chlorine and citric acid pH 3,5. The combination treatments being used were 2%, 4%, 6% sugar combined with cold temperature (18±2oC). Water was being used as control agent for all treatment. The result showed that all treatments had improved the vase life of Rose, Gladiolus, and Chrysantemum cut flowers compared to its control. The vase life of Tuberose has no difference with its control in holding solution treatments. The vase life of Tagetes cut flower was decreased with the increase in sugar concentration. The cold temperature treatment increased the vase life of all cut flowers. The combination of treatment solution formulation and cold temperature treatments had improved the vase life of all cut flowers. It has been concluded that combination treatments could be used as postharvest treatment to delay flower senescene and prolong the vase life of Rose, Gladiolus, Chrysantemum, Tuberose, and Tagetes.

Kata Kunci : bunga potong, mawar, gladiol, sedap malam, krisan, kenikir, pre treatment, treatment, suhu dingin, vase life