Plant cell

the main producer is plant that plays a very significant roles in order to sustain the growth population. Basically, plant producing their own food by undergo photosynthesis in the help of sunlight energy. The next trophic level which is herbivore will consume it and proceed to next food web. This phenomena lead to determine either the growth rate in certain ecosystem or habitat is higher or lower. For example paddy plants, it is only life once, which means once the paddy plants harvest it will…

refers to the general geographical area and includes vegetation types such as Forest, Nama Karoo, Succulent Karoo and Thicket Biomes. The fynbos biome only covers about 6, 7 % of South Africa and has the highest number of plant species than any other biome in our country. About 7 500 plant species are found within the fynbos biome. Figure 1: Map of the fynbos biome Apart from its uniqueness, the fynbos biome is also very threatened…

that trees normally provide us with shade whenever the sun is hot. Trees also help in preventing soil erosion. They also make our compounds beautiful and attractive. They are also known to purify the air around us. This is the reason why most people plant trees around their homes. However, these trees can be problematic. They can grow too big to the extent of interfering with the foundation of your house. In addition, a limb of a tree can fall on your house while you are away at work. You need…

that have been developed and it has been applied widely at different scales. The model is designed to estimate long-term annual erosion rates of agricultural fields. The USLE model as described in Equation 1 was used to predict erosion of each 100 m2 cells in this study. A=RxKxLSxCxP [1] Where A, Annual soil loss (in ton ha-1year-1); R is the rainfall erosivity factor (MJ mm ha-1 h-1); K is the soil erodibility factor (t ha h ha-1 MJ-1 mm-1); LS is the slope steepness and length factor…

wetness duration, temperature, age of plant, resistant plant cultivar, pH, nutrient and light. 2.4.1 Inoculum density One of the main factors that facilitate Colletotrichum sp. infection and growth is inoculum density. Up till now, according to Diéguez-Uribeondo et al. (2011), disease severity increased exponentially with increasing concentration of inoculum. For instance, an increase in lesion number and bigger necrotic lesion diameter was observed on cucumber plant as inoculum concentration…

The easiest way to explain transpiration is to think of it as plant evaporation. Transpiration as a whole is the general cycle for water regarding plants, this includes the movement of water throughout the plant itself and the movement of water leaving the organism. However, most definitions of transpiration focus on aerial parts such as the stomata on the leaves. The adhesion and cohesion of water is something very important to life. It is these properties that allow the movement of water…

variety of plants. The Great Smoky Mountains national park is over 800 square miles, and throughout this vast space is found a large diversity of plants. The national park is over 95% forested, and is sometimes referred to as the “wildflower national park”. While over 12,000 plant species have been discovered in the park, there is evidence that there may be as many as 90,000 unfound species. The range of elevations throughout the Smoky Mountains makes it a suitable habitat for a variety of plant…

In order to properly grow, plants need certain macronutrients and micronutrients. They need the macronutrients: nitrogen, phosphorous, potassium, calcium, sulfur, magnesium; and the micronutrients: boron, chlorine, manganese, iron, zinc, copper, molybdenum, and nickel. (3). Fertilizer enhances the growth rate of plants. Fertilizer adds nutrients and modifies the water retention and aeration of plants. Fertilizer contains three main macronutrients: nitrogen for leaf growth; phosphorus for the…

a drought, which means no rain will fall at all. The months of May through December is where the Savanna expiernces the least amount of rainfall. The savanna has special plants there because they are fit for the harsh weather conditions and they are fit for going a long time without water or going through drought. These plants can reach deep water table. The trees that they have has thick bark that can resist the annual fires because of the droughts, and their trunks can also store water. The…

Oak trees (genus Quercus) may possess a behavioral defense against acorn predators. Data collected from many oak species shows a common trend that several years of relatively low acorn production are followed by a year with an exceptionally large production of acorns. The term “mast” is used to refer to the amount of acorns produced per year, and the phrase “mast year” is used to describe the year in which acorn production is exceptionally high. Mast years seem to be synchronous within a given…