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What to do when persimmon trees have a low fruit set rate? Two methods to teach you
Persimmon is the fruit produced by an important, widely cultivated fruit tree, grown mainly in the mountainous areas of Henan, Shanxi, Shaanxi, Hebei and other places. Persimmons were introduced to France and the Mediterranean countries in the 19th century, and later to the United States. The fruit of the persimmon tree is about 5 to 8 cm in diameter, yellow
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Key Technical Points for Flower and Fruit Retention and Post-Bloom Management of Persimmon Trees
Persimmon is a berry-type fruit of the Ebenaceae family (persimmon family). Its ripening season is around October. The fruits come in many shapes, such as spherical, oblate, nearly conical, and square. Depending on the variety, the color ranges from light orange-yellow to deep orange-red, the size ranges from 2 cm to 10 cm, and the weight ranges from 100 g
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Management of Apricot Trees in Greenhouses During the Growing Season and Pollination Precautions
Apricot (scientific name: Armeniaca vulgaris Lam.) is a deciduous tree. It grows on the ground, and the plant is hairless. The leaves are alternate, broadly ovate or round-ovate, with bluntly serrate margins; near the apex of the petiole there are two glands; the pale pink flowers are solitary or 2-3 together, white or slightly red. Round, oblong
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Analysis of the Causes of Low Fruit Set in Apricot Trees and Solutions
Apricot tree (scientific name: Armeniaca vulgaris Lam.) is a deciduous tree, terrestrial, with hairless plants. Leaves alternate, broadly ovate or round-ovate, with rounded blunt serrations on the margins; flowers solitary, white or slightly red; fruit nearly spherical, mostly white, yellow to yellow-red, often with a red blush; seed kernels
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Detailed Explanation of the Top-Grafting and Variety-Conversion Method for Chestnut Trees and Post-Grafting Management
Chestnut (scientific name: Castanea mollissima), also known as li, chestnut, chestnut seed, and fengla, is a plant of the genus Castanea in the family Fagaceae. It is native to China and distributed in Vietnam, Taiwan, China, and the mainland region of China. It grows in areas at an altitude of 370-2800 m, is mostly found in mountainous areas, and has been widely cultivated by humans.
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How to control longan trees after they are infected with eriophyid mites?
Longan (scientific name: Dimocarpus longan Lour.), also known as guiyuan or yizhi, is a large evergreen tree with a tall trunk. The fruit is harvested when it ripens and turns yellowish-brown in July to August. It belongs to the Sapindaceae family; the fruit can be eaten fresh or processed into dried products, and the flesh, seed, peel and root can all be used
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The Harm Caused by Mulberry Longhorn Beetles to Fig Trees and How to Control Them
Figs are not only easy to propagate and cultivate, but also a treasure among fruits and medicines. Figs have thin skin and no seeds, are sweet and soft as honey, with a rich fragrance, a unique flavor, and abundant nutrition. They contain large amounts of vitamin A and C, as well as a variety of organic acids and more than 17 kinds of amino acids. Vitamin C content
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How is the reasonable crop load of pear trees determined?
Under normal management and moderate crop load conditions, the flower quantity of mature pear trees is generally excessive; some trees even have a flower-branch rate of 70-80%, bearing flowers all over the tree. Although abundant flowers are the foundation of a high yield, excessive fruit set will lead to a large amount of fruit drop and small fruit, and fewer flowers the following year, resulting in alternate bearing. Even with sufficient fertilizer and water, excessive fruit set cannot be allowed. Therefore, pear trees must be controlled to carry a moderate crop load. There are many methods for determining a reasonable crop load. Among them are cultivation experience and numerical indicators. For example, according to the planned yield per unit area, divide the load among individual trees, then calculate the number of fruits each tree should retain based on single-fruit weight, and distribute this among the major limbs; retain 1 fruit per several new shoots so that fruits are evenly distributed among branches; retain 1 fruit per a certain number of leaves, and calculate the number of fruits to retain and their reasonable distribution; retain fruits according to their distribution distance in the canopy; retain fruits based on the single-fruit weight and size of the pear, using experience to guide retention - if fruits were small last year, retain fewer this year; if fruits were too sparse and too large last year, retain more this year; year after year, research has also proposed retaining fruits according to trunk cross-sectional area, which is suitable for young bearing trees. The reasonable crop load is affected by many factors such as cultivation conditions and quality requirements. Its indicators for reasonable crop load should be adjusted in a timely manner. For example, with the development of the market economy, the quality requirements for pears have increased, and the price difference between grades has widened; producing more small fruits is not as good as producing fewer large fruits. For Yangxin Yali pears, pear growers previously demanded a yield of 5000 kg per mu, but now demand a yield of 4000 kg of high-quality fruit per mu. This is because producing 4000 kg of high-quality fruit is more profitable than producing 5000 kg.
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How to prevent late spring cold damage during the pear tree flowering period
Spring late cold spells and frosts are very harmful to pear trees. Generally, when pear trees encounter a low temperature of -4.0°C at the bud stage or -2.3°C to -2.9°C at the flowering stage lasting more than half an hour, the flower organs will suffer freezing damage, usually manifested as poor pollination, dried and dead stigmas, and browned filaments or
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What measures are there to improve the fruit-setting rate of pear trees?
1. Protecting flowers and protecting fruit They are two technical measures with completely different meanings, but their purpose is the same: to improve the fruit-setting rate. Only when these two measures are skillfully combined on the same tree can it be ensured that the tree bears enough fruit for a good harvest. Protecting flowers and protecting fruit is by no means a matter of the flowers on the tree
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