Radicle

Introduction/Purpose There are many parts to a seed. First, there is the testa (seed coat). It is the outside layer protecting the inside of the seed. On the side of the seed, there is a tiny hole called the micropyle. Water can be taken through the hole when it is ready to germinate. Inside the seed near the micropyle, there is a root called a radicle. When the seed begins to grow the radicle will come out the micropyle. The seed coat can protect the seed from many factors such as freezing temperatures, heat, radiation, or acidity. Each seed has to go through the process of seed germination before they become a plant. With the right temperature and amount of water, the seed should start germinating within a couple days. The oxygen and water…

Germination- Germination is when seeds are spread/blown somewhere else and grow into new plants or when a seed is planted by someone in the ground. Although there are many important factors that are involved in seed germination the three most important ones are water, sunlight, and temperature. Plants are not able to germinate if the seed is watered too much or too little. Plants are not capable to grow food from sunlight when they are seeds, so the seed will use other things, such as water, to…

Impact of Salt on Seed Germination Introduction Germination is a key event in a plant’s lifetime and controlled by two main factors which are water and salt stress (Yuan et al., 2016 and Vallejo et al., 2010). Salt stress affects plant growth and crop production by causing osmotic and ionic stress in plants. Alonso-Blanco et al in 2009 reported that less study was made on the traits in Arabidopsis thaliana despite the immense genetic variation present in the species and the importance of seed…

40 “Yates” Vicia Faba seeds were selected and measured using a millimetre ruler, ensuring that all selected seeds were kept within a size range of 3mm in diameter. Each one of the 8 pots was filled with 8dm3 of soil and given a label using the marking pen, indicating the concentration of gibberellic acid that would be poured into it. 5 Vicia Faba seeds were placed in each pot and buried into the soil at a consistent depth of 1cm. The distance between each seed and adjacent seeds was kept at a…

Due to the fact, that the increase of radicle length within lentil bean seeds was affected by the environmental aqueous solutions, which was made up of either a table sugar, dextrose or a control. It presented that there was not a statistical difference between the table sugar or dextrose aqueous solutions in comparison to the radicle lengths since the P values were less than 0.05. Although, there was a statistical increase in radicle length with the comparison to the control. If these seeds…

“If ascorbic acid has positive effects on radish seed germination, then radish seeds germinated with ascorbic acid concentrations of 0, 100, 300, and 500 parts per million (ppm) solutions will exhibit longer seed radicles (measured in millimeters) than control seeds germinated in distilled water alone” was incompletely supported. For example, Graph 1 shows the Control trial achieved the greatest average length (31.5 mm) by the end of the experiment in comparison to all other trials. However,…

The radicle is the first part of a seed that emerges during germination. The radicle becomes the first root of the plant, and uses geotropic forces (with gravity) to grow downwards into the soil. The hypocotyl grows above the stem to support the cotyledons as the radicle begins to grow. The radicle bursts through micropyle on the side of the testa (seed coat) during the first 3-4 days of germination. It pushes its way through soil below using energy from the cotyledons, which is converted to ATP…

Quantitative measurements such as: the width of both the radicle and hypocotyl, the length of both the radicle and hypocotyl, and how many seeds have sprouted on each day are taken throughout the germination. In each petri dish, there will be a grid of the measuring paper to record both width and length. Qualitative measurements such as the quality (how strong the radicle and hypocotyl looks compared to the control) and color of both will be measured to help support the quantitative results. To…

This is relevant question for the life of plants because cytokinins primarily promote lateral growth (branching out), balanced by auxins (a different plant growth hormone) which combat lateral growth. It is crucial for germination because the endosperm of the seeds contain large amounts of the cytokinin (specifically zeatin), and when the seed germinates, it moves from the endosperm to the root tip where it stimulates mitosis. (Cytokinins, 2016) The hypothesis is that if all other variables are…

In this experiment, the problem that was being investigated was the effect of Miracle Gro on the germination of lentil seeds over a period of three days. This problem was investigated in the interest of Ms. Semaan and her past experiences with lentils. She and her family had previously grown lentil seeds seasonally and compared them to her relatives’ seeds in terms of growth and height. More often than not, the relatives’ lentils grew better than those of Ms. Semaan and her family, and she had…