What s the deal with the black hearts of the pineapple, what s the matter with the black hearts of t

This is because pineapples have black rot.

Black Rot Profile:

Pineapple black rot mostly occurs in ripe fruits, but unripe fruits can also be affected. Usually asymptomatic in the field. After harvesting, the fruit decays rapidly during stacking and storage.

Dark water-stained soft spots appear on the surface of the affected fruit, which then expand and connect with each other to form large dark brown patches with no obvious edges, and can extend to the whole fruit. The internal tissues are water-stained and soft rot, with a clear distinction from healthy tissues. The heart of the fruit and its surroundings turn black-brown, the diseased fruit exudes a large amount of liquid, and the tissue disintegrates to give off a special aromatic smell.

The disease will also damage seedlings and cause seedling rot, and the root end and lower leaves will turn black and rot; Attack the top of the stem and the base of the leaf, the diseased part turns black and causes heart rot, and the diseased part emits fragrance; Attack on the leaves causes long lesions, which are yellowish-brown at first and then turn grayish-white.

There should be a virus

Don't eat it, probably because the buyer is stocked

Some don't eat it, eat a certain gown.

It's frozen, it shouldn't be long before it rots.

There are two types of pineapple hearts that turn black. One is the blackening of the pineapple caused by overripeness, which can be eaten in this condition. The other is the black rot caused by the black rot of the pineapple, as a kind of disease often occurs in the fruit, whether it is a ripe or unripe fruit, it is easy to have this disease, when the disease occurs, the inside of the flesh will be dark brown, the tissue liquid wheel hall becomes soft, and the liquid is oozing in the later stage, and it can not be eaten in this condition.

There are two types of pineapple hearts that turn black. One is the blackening of the pineapple caused by overripeness, which can be eaten in this condition. The other is the black rot caused by the black rot of the pineapple, as a kind of disease that often occurs in the fruit, whether it is a ripe or unripe fruit, it is easy to have this disease, when the disease occurs, the inside of the flesh will be dark brown, the tissue becomes soft, and the liquid exudes in the later stage, which can not be eaten in this condition.

Yes.

Browning of pineapple hearts is a sign of improper storage or heart decay.

Be caused by. The normal pineapple is cut inside is yellow limb Kai color, and some pineapples are found to be brown after cutting, resulting in the following two reasons for the change of pineapple color, the first reason may be that the pineapple is too long and too ripe, and the second reason may be that the pineapple itself is broken by the old man for various unstoppable reasons, so judging whether it can be eaten mainly depends on whether the pineapple has a rotten smell after cutting, if it smells of rot, then it must be thrown away, forbidden to eat, In order to avoid uncomfortable symptoms afterwards, and if not, then you can still eat, but it is still recommended that you cut off the brown part when eating, and eat the part that does not contain clumps and has discoloration.

Pineapple is a very tasty fruit that tastes delicious and is highly nutritious. However, sometimes I find that the pineapple heart turns red, so can I still eat the pineapple heart when it turns red? What's the deal with pineapple hearts?

1. Improper preservation, if there is a violent bump in the process of transportation and preservation of pineapple, the flesh of the pineapple will be injured by the lack of eyesight, and it will slowly rot and appear red; In addition, if the temperature of the pineapple is too high and left for too long during the preservation process, the central area will also turn red and slowly turn black, which is also a signal of pineapple spoilage.

2. Rotten heart.

Pineapple red heart may also be pineapple suffering from rotten heart disease, this fruit lesion and management, climate, etc. are directly related, mostly due to excessive rain during the growth period, and the proportion of fertilizing elements is not right, there will also be a black heart, this disease is generally not seen in the harvest period, after cutting down and storing for a period of time, there will be a red heart, and then slowly become a black heart, this pineapple is not suitable for consumption.

Pineapple red heart is a sign of spoilage, so when you encounter a red heart, you must not eat the bush to prevent eating bad stomach.

Be. Improper preservation: If the pineapple is violently bumped during transportation and preservation, the pineapple flesh will be traumatized, and it will slowly rot and appear black.

If the temperature of the pineapple is too high and left for too long during the preservation process, the central area will also be blackened, which is also a signal of pineapple spoilage.

Rotten heart. Pineapple black heart may also be pineapple suffering from rotten heart disease, this fruit lesion and management, climate, etc. are directly related, mostly due to excessive rain during the growth period, and the proportion of fertilizing elements is not right, there will also be black heart, this disease can not be seen in the harvest period, after cutting down and storing for a period of time, there will be black heart, this pineapple is not suitable for consumption.

Yes, friends radish heart brown, this is bad, generally called brown heart disease, so take a look at the following to understand the causes of radish brown heart disease, can avoid radish brown heart disease, the survey shows that the high mountain radish planting area of Taoping Township, Tonghua Township, annual rainfall of 350 400mm. The plots are mostly sunny slopes, gray-brown soil and sandy loam soil.

The production season is concentrated and the annual rainfall is low (and mostly in March, April and August-September). The amount of organic fertilizer applied in the production process is about 2 000kg, and the organic fertilizer is not completely decomposed, and boron fertilizer is never applied. Soil samples were taken to detect severe boron deficiency.

1.The arid climate accelerates the decomposition of organic matter in the soil and reduces the amount of boron; Drought increases the fixation of boron in the soil, resulting in a decrease in available boron. Drought leads to a lack of soil moisture, which reduces boron mobility and limits boron uptake by roots.

2.Insufficient application of organic fertilizer due to insufficient application of organic fertilizer, soil fertility declines, organic matter is scarce, air permeability is reduced, aerobic microbial activity is reduced, and soil maturation is slow, resulting in soil compaction, lack of available boron, and affecting the normal growth of radish.

3.Improper irrigationAt present, farmers in the high and mid-mountain areas mostly use flood irrigation for watering, resulting in soil organic matter and boron and other trace elements being washed out, especially in the sandy soil where radish is planted, the available boron is more easily washed, resulting in insufficient boron supply. Therefore, the brown heart disease of radish is more serious in the upper part of the slope than in the lower part, and the sandy soil is more serious than that in the gray-brown soil.

4.Soil conditions: In the process of radish production, trace elements such as zinc, boron, molybdenum, copper, and manganese in the soil are absorbed, but no supplementary application of micro-fertilizer is made, resulting in the gradual decrease of boron and other trace elements in the soil. In addition, the soil of the radish planting plot in our county is gray-brown soil and sandy soil, the gray-brown soil is heavy in clay, poor in structure, and the lime reaction in the whole profile is medium-strong, alkaline, and the organic matter content is low; The sandy soil layer is thin, the permeability is large, and the water and fertility retention is poor.

Therefore, the soil boron deficiency in the radish planting area of Lixian County is serious, which leads to the occurrence of radish brown heart disease.

5.Variety differencesUnder the same soil conditions and the same boron level, there were differences among radish varieties, and Baiyuchun radish was more resistant to brown heart disease than other Korean varieties (Baiguangchun and Zaoguang).

If you leave it for too long, it may be broken. You can taste the taste, and if the taste is not right, then it is better not to eat it.

There are two types of pineapple hearts that turn black. One is the blackening of the pineapple caused by overripeness, which can be eaten in this condition. The other is the black rot caused by the black rot of the pineapple, as a kind of disease often occurs in the fruit, whether it is a ripe or unripe fruit, it is easy to have this disease, when the disease occurs, the inside of the flesh will be dark brown, the tissue becomes soft, and the liquid exudes in the later stage, which can not be eaten in this condition.

Pineapple has its own special growth habits. The vast majority of pineapples have rosette-like leaf clusters. The base of the leaf cluster forms a leaf tube that can hold water.

The water required for the growth and development of this kind of pineapple is not stored in the mesophyll, but stored in the groove naturally formed at the growth point of the cluster leaf cluster ** (that is, the unique rosette-shaped leaf tube) In addition to frequent watering to keep the potting soil moist, it is also necessary to water the leaf tube frequently, so that the leaf tube is stored with sufficient water, so as to make it grow strongly, which is a special habit of pineapple.

The black heart of the pineapple is due to the occurrence of black rot, which is a common pineapple storage disease, so it cannot be eaten. Pineapple (scientific name: ananascomosus) is one of the tropical fruits.

In Fujian and Taiwan, it is called Wangli or Wanglai (ng-l i), in Singapore and Malaysia, and in mainland China and Hong Kong, it is called pineapple. There are more than 70 varieties, one of the four famous fruits of Lingnan.

Pineapples are native to the Amazon basin of Brazil and Paraguay in South America, and were introduced to China from Brazil in the 16th century. It has now spread throughout the tropics. Its edible part is mainly composed of fleshy enlarged inflorescence axes, spirally arranged flowers on the periphery, the flowers are usually not fruitful, and the remaining flowers are surrounded by lobes into an empty cavity, and the cavity contains shrunken stamens and columella.

The fibres of the leaves are very tough, which can be used for fabrics, rope making, netting and paper making.