Bamboo stalks turn yellow when the plant is very unhealthy and dying, this change is caused by a number of factors. Dehydration is the most common reason for a bamboo stalk to yellow. Going without any water for a short amount of time hardens the pores that the plant uses to bring water into the plant. This hardening is permanent, making the plant unable to hydrate itself even if water is added later.Continue Reading
A bamboo plant that starts to yellow needs immediate attention. When the bamboo stalk starts to yellow before the leaves, the problem likely started at the base. Too much fertilizer, the wrong type of fertilizer, dirty water and lack of water are likely causes of yellowing bamboo.
If a stalk of bamboo turns yellow, it needs to be removed from plant arrangements to prevent it from affecting the other plants. If the leaves yellow first, there is more time to correct any issues in the plant's environment. Bamboo plants need indirect sunlight, a comfortable, room-temperature environment and plenty of water. Fertilizers that are meant for soil-grown plants are not recommended for bamboo plants because of the intense strength of the fertilizers. Bamboo plants are also sensitive to frequent pruning.Learn more about Botany
The most important factors regarding osmolarity of plant cells are solute concentration and hydrostatic pressure. Osmosis is a spontaneous process that is driven by a potential energy called water potential. The water potential is the sum of two energy potentials: the solute potential and the pressure potential, as explained by Dr. Koning in his Plant Physiology lecture notes.Full Answer >
Stomatal density refers to the number of stomata present on plant leaves per square millimeter. Leaf stomata are small pores that facilitate gas exchange in plants. These pores allow carbon dioxide to be absorbed and water to be released.Full Answer >
Cross-pollination, which is when the pollen of one plant fertilizes another plant of the same species, occurs in a huge number of plants, including corn, willows, grasses and olive trees. A large number of food crops are cross pollinated, including squash, onions, broccoli and spinach.Full Answer >
To measure the rate of photosynthesis, place a sprig of elodea in a test tube next to a light source and calculate the number of air bubbles coming out of the plant. Change lighting and availability of carbon dioxide to alter the rate of photosynthesis.Full Answer >