Potato growth and development required more cold weather conditions because of its origin to the high Andes mountains of South America, the annual average temperature of 5 degrees -10 degrees, the highest average temperature of 24 degrees. China's mountainous southwest, northwest and some areas of the north, near the origin of potato climatic conditions. But after years of potato planting of artificial selection, have been early, in late-maturing varieties of different types, in a variety of climatic conditions can plant. But, after all, potato plants and tubers in the biological response to temperature has its natural characteristics, therefore, cultivation of potato, the understanding of these situations is very important.
Plant response to temperature.
Planting of potato tubers under the ground at a depth of 10 cm soil temperature of 7 degrees to 8 degrees to the growth of plumule, 10 degrees to 20 degrees when the bud grow and soon unearthed. Early sowing of potato late frost after emergence often encountered, in general, when the temperature fell to -0.8 degrees seedling that is subject to chilling injury. Temperature dropped to -2 degrees seedlings by freezing, some stems and leaves of withered, dark, but at the temperature can rise from the section after the Department issued a new leaf, continue to grow. Plant growth in the most appropriate temperature was 21 degrees in 42 degree heat, the stems and leaves stop growing, the temperature at -1.5, the stem by freezing, -3 degrees all withered leaves and stems. Flowering optimum temperature is 15 degrees to 17 degrees, less than 5 degrees Celsius or higher than 38 degrees are not flowering. Flowering period to -0.5 degrees Celsius while the flowers suffer -1 degrees so that the flowers died. Of course, due to the cold hardiness of different varieties of the reaction temperature also varies. But know potato plant growth and temperature relationship, to strengthen field management, and ensure access to high-yielding potato with Health want significance.
Tubers on the temperature response.
Potato tuber growth and development of optimum temperature is 17 degrees to 19 degrees, the temperature below 2 degrees and 29 degrees higher than when the tubers stop growing. Often encountered in practice in the production of two types of tuber growth anomaly.
The first situation is the planting bud stalks quickly turned into a tuber, also known as Health boring potato or potato Dream Health. Such a situation before the tubers are planted because of bad storage conditions, high temperature kiln. Cellar temperature at 4 degrees Celsius, tuber dormancy period that begin germination. Some cellar temperature at 10 degrees above buds on tubers grown son long tubers put Budding removed after planting, tubers in the transfer of nutrients to the bud when moving at low temperature, bud growth conditions did not, so again nutrients storage together to form a new small tubers. If the planting does not germinate, or when the tubers start sprouting not only growth, until after the normal growth temperature, so that does not produce tubers.
The second situation is encountered in a long tubers at high temperature to stop the growth, to be watered after rainfall decreased soil temperature, tubers start growing again, that is secondary growth. Under these conditions some tubers such as dumbbells, and some shaped like beads, there a variety of malformations. Of course, this situation with high temperature resistant varieties Whether or not there is a lot. Of high-temperature-sensitive species encountered in drought and water shortage, soil temperature, the secondary growth of tubers in particular many, while the high temperature species may appear or a rare occurrence in the ground into a branch, and this will seriously affect the production or lowering the quality of tubers. Of such varieties to timely irrigation to reduce soil temperature.
Plant response to temperature.
Planting of potato tubers under the ground at a depth of 10 cm soil temperature of 7 degrees to 8 degrees to the growth of plumule, 10 degrees to 20 degrees when the bud grow and soon unearthed. Early sowing of potato late frost after emergence often encountered, in general, when the temperature fell to -0.8 degrees seedling that is subject to chilling injury. Temperature dropped to -2 degrees seedlings by freezing, some stems and leaves of withered, dark, but at the temperature can rise from the section after the Department issued a new leaf, continue to grow. Plant growth in the most appropriate temperature was 21 degrees in 42 degree heat, the stems and leaves stop growing, the temperature at -1.5, the stem by freezing, -3 degrees all withered leaves and stems. Flowering optimum temperature is 15 degrees to 17 degrees, less than 5 degrees Celsius or higher than 38 degrees are not flowering. Flowering period to -0.5 degrees Celsius while the flowers suffer -1 degrees so that the flowers died. Of course, due to the cold hardiness of different varieties of the reaction temperature also varies. But know potato plant growth and temperature relationship, to strengthen field management, and ensure access to high-yielding potato with Health want significance.
Tubers on the temperature response.
Potato tuber growth and development of optimum temperature is 17 degrees to 19 degrees, the temperature below 2 degrees and 29 degrees higher than when the tubers stop growing. Often encountered in practice in the production of two types of tuber growth anomaly.
The first situation is the planting bud stalks quickly turned into a tuber, also known as Health boring potato or potato Dream Health. Such a situation before the tubers are planted because of bad storage conditions, high temperature kiln. Cellar temperature at 4 degrees Celsius, tuber dormancy period that begin germination. Some cellar temperature at 10 degrees above buds on tubers grown son long tubers put Budding removed after planting, tubers in the transfer of nutrients to the bud when moving at low temperature, bud growth conditions did not, so again nutrients storage together to form a new small tubers. If the planting does not germinate, or when the tubers start sprouting not only growth, until after the normal growth temperature, so that does not produce tubers.
The second situation is encountered in a long tubers at high temperature to stop the growth, to be watered after rainfall decreased soil temperature, tubers start growing again, that is secondary growth. Under these conditions some tubers such as dumbbells, and some shaped like beads, there a variety of malformations. Of course, this situation with high temperature resistant varieties Whether or not there is a lot. Of high-temperature-sensitive species encountered in drought and water shortage, soil temperature, the secondary growth of tubers in particular many, while the high temperature species may appear or a rare occurrence in the ground into a branch, and this will seriously affect the production or lowering the quality of tubers. Of such varieties to timely irrigation to reduce soil temperature.