Catatan Kecil

Seperti halnya tebu, kentang juga memiliki beberapa macam varietas yeng tentunya memiliki karakteristik yang berbada-beda. Hal ini menyebabkan bentuk, ukuran dan warna yang berbeda, dengan hasil yang berbeda pula. Berikut macam-macam varietas kentang yang beredar di Indonesia : A. Kentang Kuning 1. Granola Jenis ini merupakan varietas unggul, karena produktivitasnya bisa mencapai 30 – 35 ton per hektar. Granola juga tahan terhadap penyakit kentang pada umumnya. Bila varietas lain kerusakan akibat penyakit bisa 30%, granola hanya 10%. Umur panen normal adalah 90 hari, meskipun 80 hari sudah bisa dipanen. Warna kulit dan daging umbi kuning dan bentuknya relatif lonjong alias oval 2. Cipanas Merupakan varietas hasil persilangan Thung 1510 dengan Desiree. Kulit umbi dan daging umbi berwarna kuning. Mampu berproduksi sampai 34 ton per hektar. Namun, varietas ini agak peka terhadap Nematoda Meloidogyne Sp dan serangan layu bakteri Pseudomonas Solanacearum . Namun tahan...

Introduction to the History of Tea I. ORIGINS AND BEGINNINGS Today the tea bush is known as Camellia sinensis (L.) O. Kuntze of which there are two varieties: var. sinensis and var. assamica. In 1690, E. Kaempfer, a German medical doctor cum botanist who came to Japan from Holland and observed the habit of tea drinking among the people, named the bush ‘‘thea.’’ In 1753, the famed botanist C. Linne gave to it the name of Camellia sinensis changing his original naming of Thea sinensis. Since then the nomenclature of the tea bush has been confused between these two names. In 1958, a British botanist J. R. Sealy classified all plants in the genus Camellia and tea was given the name it has today.      Tracing the origin of the tea bush is laborious work, since it spans countless numbers of geological years from the Tertiary period on and covers vast mountainous areas in south eastern Asia. General consensus attributes the birth of the tea bush to the area we...

What you eat and drink can be the cause of a disabling or deadly disease, or it can extend your life span to a healthy old age. What is beneficial and what is harmful? In the United States, and many other countries, investments have been made in medical research that have led to major successes in disease prevention, diagnosis, and therapy. Advances in the basic sciences such as nutrition, biochemistry, pharmacology, and pathology have provided an understanding of cell and tissue behavior and factors that impinge on their proper functioning, as well as the elements that go wrong and lead to disease processes.      Despite these advances, however, there is still significant premature mortality from cardiovascular diseases, many types of cancer, and problems associated with aging, such as Alzheimer’s disease and other mental and psychiatric conditions. Many of these diseases have been found to be associated with nutritional traditions, eating habits, and l...