Division of Plant Physiology Division of plant physiology due to its rapid development which is also supported by the development of chemistry and physics, then physiology Plants are often divided into several branches according to space among others: 1. Plant Physiology This branch of physiology studies metabolic processes in cultivated plants, so they do not include plants classified as monera, prostista, and other types of fungi and higher plants cultivate. 2. After-Harvest Physiology This branch of plant physiology examines physiological processes that happens to the resulting organs after the organs are harvested. Reactions What occurs is generally catabolic, namely the reduction of compounds compounds with large or larger molecules such as starch, cellulose, protein, fats and nucleic acids into small molecular compounds or become simpler. 3. Ecophysiology This branch discusses the influence of environmental factors on various plant metabolic processes, including influence positive (beneficial) and negative (harmful) for plants and human interests. 4. Seed Physiology This branch is a spatial branch of plant physiology The scope of the discussion is limited to ongoing processes in the stages of seed germination such as imbibition, reactivation enzymes, decomposition of stored materials and growth of radicles. Relationship between plant physiology and other branches of botany. The widening of the subject matter in various fields of science causes There are many areas of overlap between one science and another others, as well as what happens between plant physiology and some other fields of science, especially the branch of botany. The size of the overlapping area portion. This overlap is accompanied by the importance of the overlap area causes the development of new branches of science and is referred to as ecophysiology or environmental physiology. From the description above, it is clear that there is a connection between plant physiology with other branches of botany. Apart from that, plant physiology will is very closely related to the basic sciences that support it, namely science chemistry and physics.