how to grow a potato by vegetative reproduction
Answers
Answer:
Potatoes are mainly propagated by vegetative methods (cloning). Potato tubers have nodes or eyes from which the new growth begins. The new stems growing from each eye are called sprouts which giver rise to the new plant. Vegetative seed can be either a whole tuber or a cut tuber.
Explanation:
Answer:
Potatoes are mainly propagated by vegetative methods (cloning). Potato tubers have nodes or eyes from which the new growth begins. The new stems growing from each eye are called sprouts which giver rise to the new plant. Vegetative seed can be either a whole tuber or a cut tuber.
Explanation:
Potatoes are indigenous to the Andean regions of Peru, Chile and Bolivia, extending northward to the southern Rocky Mountains. Cultivated potato, Solanum tuberosum L., is a highly heterozygous tetraploid (4x = 48), belongs to the Solanaceae family together with other crops like tomato and peppers. Potatoes are adapted to an array of climates and are utilized in many ways. The potato tuber is not only the principal mean for potato propagation, but also a major human food source. Potatoes are mainly propagated by vegetative methods (cloning). Potato tubers have nodes or �eyes� from which the new growth begins. The new stems growing from each �eye� are called sprouts which giver rise to the new plant. Vegetative seed can be either a whole tuber or a cut tuber. Physiological age of seed is influenced by growing conditions, handling, storage and cutting procedures, and it has an impact on how the new crop grows. Sexual propagation occurs by means of botanical or sexual seed. Most potato cultivars produce fruit; each seed will develop into a plant with unique characteristics. This is a process very useful in crop improvements in breeding programs, but its genotypic variation is of little value to growers. Tissue culture is another method which permits a very rapid propagation. This method is used to maintain disease free seed stock, which can be then stored �in vitro� and be used when is needed.
The tuber is not only the principal mean for potato propagation, but also a major human food source. Potatoes are mainly propagated by vegetative methods (cloning). This is the primary commercial propagation method. Vegetative reproduction ensures a uniform crop, contraire to what would happen with sexual propagation. Sexual propagation of potato is accomplished by planting its �true seed�, but a high variability exist between this seed and that is why is not commonly used. However, sexual seed is becoming more and more popular; especially in places were disease pressure is very high and maintaining disease free seed is becoming a problem.
Asexual, vegetative or clonal propagation:
When potato growers talk about �seed� they are talking about the tuber and not the botanical or sexual seed. Potato tubers are actually a modified stem with approximately 70-75% content of water and a remaining 25-30% of dry mater. They have nodes or �eyes� from which the new growth begins. The new stems growing from each �eye� are called sprouts. Sprouts grow from the tuber after a period of dormancy after they are harvested, this varies largely between cultivars. After this dormancy is broken, sprouts grow and when planted, they give rise to the plant stems and from there all the vegetative part of the plant. Underground, lateral shoots called �stolons� are formed, from which the new tubers will be formed.