In this article we will discuss about the Blackman’s law of limiting factor of photosynthesis. Sachs in 1860 for the first time propounded the concept of the three cardinal points. According to this concept, there is a minimum, optimum and maximum for each factor in relation to photosynthesis. This way, with any given species there may be a minimum temperature [...]
Food materials are manufactured mainly in the leaves and are translocated to the other regions of the plant through the phloem. Some of this is utilized for the growth of the plant, while the excess is stored. Whenever needed, the stored food material is drawn to the regions of necessity again through the phloem. The organs of the plants that [...]
This type of metabolism, refers to a mechanism of photosynthesis, that is, different from C3 and C4 pathways. Crassulacean acid metabolism (CAM) is found only in succulents and other xerophytes or plants that grow in dry conditions. In this type of metabolism, CO2 is taken up by the leaves on green stems through stomata which remain open during night. However, [...]