Lab Report

Four cups of equal size were filled with one cup of garden soil. Lima beans were planted at an equal depth (one inch as instructed on the bag). Every day, for 33 days, each plant received one half tablespoon of the specified liquid. Beans one and two got one half tablespoon of water each,

This experiment was performed to test two hypotheses concerning the plant hormone gibberellic acid and a mutant rosette shaped phenotype of the plant Brassica rapa. This experiment was done in order to test the effects o gibberellic acid on plants and its effect on rosette shaped complexes. The two hypotheses in this experiment are as follows: Hypothesis number one states that Gibberellic acid allows for stem elongation in plants. Hypothesis number two. The rosette complex in the rosette phenotype plant contains less gibberellic acid naturally and therefore grows shorter.

Dicots are present throughout our ecosystem and everyday life. Without these species of plants, humans would not be able to survive and our ecosystem would be unbalanced. The dicot used in this experiment was a bean seed. Characteristics include two cotyledons, reticulated leave veins, flower petals in multiples of four or five, taproot system and, vascular system that is divided into 2; cortex and stele ("Monocot vs Dicot." - Difference and Comparison 2015). Nutrients are a key element for survival and development of a dicot plant. In this experiment the bean seed will be exposed to high levels of salt concentration (1.0ml) and low salt concentrations (0.5ml) which, will be compared to the one with no salt. The expected result from this experiment

The first lab was conducted to analyze how germination affects the rate of cellular respiration in lima beans compared to dormant seeds. In order to

First, before starting my experiment I did some research on the growth of lima beans, so that I could start the base of the project. According to research done at the University of

The purpose of this lab was to investigate and observe the effects of organic vs. synthetic fertilizers on plant growth by planting lima beans with added amounts of fertilizers, and to see how does adding different nutrients to the soil affect the growth of the lima bean? A significant difference was examined between the plants that contained manure and miracle growth, unfortunately the plant with no additional fertilizers (Plant #3) did not show any growth. The plant that grew the most was the one that contained manure, to an extent the one that grew the most in a short period of time was the one that contained miracle growth, as shown in figure I. The hypothesis explaining if the Lima Bean plant contains synthetic nutrients in the soil then

While experimenting with the green beans, the seeds exposed to the organic plant food germinated within five days of the experiment and the seeds exposed to the chemical plant food germinated within six. The seeds that acted as the control had been expected to grow the least, however, it was surprising that they did not grow at all. Both the chemical and organic fertilizers proved to have positive results on the plants. It was also unexpected when the seeds exposed to the chemical plant food surpassed the height of the other experimental seeds after being shorter. The predicted reason for the increase in growth with seeds given Miracle Grow was because chemical fertilizers automatically store up the nutrients and disperse it constantly throughout

This is proportionate to the net lessening of 7.42 % for BAS370. Calli acquired from both the assortments were friable, granular, and yellow in shading. So it was demonstrated that N6 media is better for callus prompting of rice when contrasted with M.S medium. General consequence of BAS-385 was best on different groupings of 2,4-D and BAP on both, MS and N6 media. Callus structure Bas-385 was sound and more plump as contrast with Bas-370.The dynamic division of cells was more noticeable in the callus of Bas-385, that is the reason it looks massive. Also Bas-385 had more limit for delivering callus, particularly when N6 media supplemented with 2,4Dat 2mg/L. Agronomic elements of Bas-385 are additionally superior to anything Bas-370 on the grounds

If the concentration of Gibberellic Acid increase, the number of seeds germinated per day will increase.

A one-pint jar was obtained and filled to one inch below the jar shoulder with hydroponic solution. Two 7-day old bean plants were picked out. A neoprene stopper with three holes was picked out. Cotton was wrapped around the stem where it was going to be inserted into the neoprene stopper to prevent the plant from slipping. The roots were submerged in the solution and the neoprene stopper was taped down. The point where the plant stem and the neoprene stopper met was marked with methylene blue dye. The entire jar was wrapped in aluminum foil and the aluminum foil was taped into place. These steps were repeated once more to create the hydroponic solution chamber for the control plant, as shown in Figure 1.The type of water, temperature, and

24 plants of the species Arabidopsis thaliana were grown at two temperatures (20°C and 24°C) in Percival growth chambers, half at 20°C and half 24°C. The plants were randomized into a design that consisted of 12 flats in two growth chambers. The seedlings were then transferred to three inch pots on standard ProMix potting soil and bottom watered in their trays, two times per week to assure that the potting mix remained moist. Each group will have two different accessions; Natural Population A and Natural Population B. Natural Population A represents species extracted from Market Baden, Germany. Natural Population B represents species extracted from Merzhausen, Germany. Each accession will have six plants growing under 20°C and 24°C. All 24 plants were then looked at to measure the rosette size, the distance from the center stalk to the edge of the leaves. All measurements were reported in centimeters using a ruler. The plants were measured in two spans that were

This data shows a strange outcome, in the hypothesis; it says that “If acid is introduced to the seed during germination, then the roots will not grow as long as the seeds that are given water”. This statement proves to be untrue, because the roots grew longer with stronger acid than weaker acid, and in some, cases, grew better with strong acid than it did in water. This may be true because of the acid growth theory. The acid growth theory states that auxins cause the elongation of stem cells by promoting wall loosening. It was determined that this wall loosening is caused by hydrogen ions. This idea and subsequent supporting data gave rise to the acid growth theory, which states that when exposed to auxins, susceptible cells excrete protons into the wall at an enhanced rate, which in turn decreases the pH in the wall. The lowered wall pH then activates the wall loosening process which is essentially doing the same thing as the auxin hormone.

The seeds were surface sterilized with 0.1% Mercuric chloride for 5 minutes then washed with distiied water several times to remove chemicals. The seeds of Raphanus and Cucumber were spread on sterile filter paper in each petridish and soaked in aqueous root exudates of each weeds. Each weeds had three replicates with equal quantity of seeds in petridishes. The seeds are allowed to grow for 10 days at room temperature. The seeds treated with sterile distilled water was termed as control. The seeds treated with weeds aqueous root exudates of Ageratum conyzoides, Leucas aspera, Scoparia dulcis, Spilanthes acmella and Vernonia patula were termed respectively as T1, T2, T3, T4 and T5. During the experiment period, care was taken to add equal volume of root exudates in each petridish periodically. After 10 days the seedlings were harvested. Then the effect of root exudates on the seed germination and seedling growth were studied. The shoot and root length of the seedlings were measured in cm and recorded. Then the average shoot and root length were calculated. The result observed are presented in Tables and photo plates.

Bar-Tal, A., et al. "Nitrogen nutrition of greenhouse pepper. I. Effects of nitrogen concentration and NO3: NH4 ratio on yield, fruit shape, and the incidence of blossom-end rot in relation to plant mineral composition." HortScience 36.7 (2001): 1244-1251.

One of the first plant rooting hormones found is auxin indole-3-acetic acid in the same year, Zimmerman and Wilcoxon (1935) discovered that several new synthetic auxins, among them indole-3-butyric acid also promoted rooting. It was demonstrated that auxin indole-3-butyric is very effective in promoting rooting growth in a wide variety of plants, and it is used commercially to root many plant species world-wide (Hartmann et al. 1990). Since its introduction more than 50 years ago, auxin indole-3-butyric has been the subject of hundreds of experiments and articles. Today one can still find varieties and cultivars in almost every type of plant, respond to treatment during only part of the growing season, or produce roots only in a fraction of the treated cuttings. In recent years, several attempts were made to understand the role of auxin indole-3-butyric in the rooting process in plants at the metabolic levee