1, symptoms. There was no abnormal growth in the whole plant, but the middle and upper leaves were pale; application of non-sulfate-containing fertilizers, and the use of peat and other materials to nurse seedlings, could easily lead to yellowing of the upper leaves and veins of the plants.
2. Reasons. Long-term application of sulfate-free fertilizers can lead to sulfur deficiency.
3, diagnosis points. Yellowing leaves and nitrogen deficiency symptoms are similar, but the site of symptoms is different, the upper leaf yellowing is sulfur deficiency, and the lower leaf yellowing is nitrogen deficiency. The symptoms of upper lobar yellowing are similar to those of iron deficiency. Iron deficiency veins have obvious green color, yellowing between veins, chlorosis of chlorophyll-deficient leaf veins, no leaf curling, dead leaves, and small nicks. The leaves are all yellow, but yellowing into a mosaic may be caused by a virus.
4, countermeasures. More decomposed organic fertilizer, a reasonable balance of soil nutrients. In the absence of sulfur, sulfur-containing fertilizers such as ammonium sulfate, superphosphate, and the like are applied.
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Single Packed Mottled Waxy Corn
Waxy corn comes in a variety of colours. Some people wonder if waxy corn is a genetically modified product. In fact, it is not. Waxy corn originated in China. It is caused by a genetic mutation. Artificial selection gradually led to the emergence of a type of tannin.
Waxy corn, also known as waxy corn, is sticky corn. The grain has coarse, waxy endosperm, similar to shiny, glassy (clear) grains such as hard and dented corn. Its chemical and physical characteristics are controlled by a recessive gene (wx), which is located on chromosome 9. 100% of the starch in the endosperm is straight-chain starch.
Coloured glutinous corn is generally white, yellow, red, purple and black, with white, yellow and purple corn being the basic colours. Purple and white hybrids naturally become purple if the purple gene "beats" the white gene and vice versa, so if the two tie we see white and purple corn. Purple can turn into red and black corn, or as we often say, "red is purple and black is purple". Of these colourful corn, the most common yellow waxy corn is the most nutritious as it is rich in carotenoids...
Currently, the only genetically modified foods sold on the Chinese market are soybean oil and papaya. Waxy maize is a hybrid variety and is not associated with genetic modification. Therefore, it can be concluded that glutinous maize is a hybrid variety and has nothing to do with genetic modification.
Genetic modification is a type of "genetic engineering" in modern science and technology, which makes use of modern molecular biology techniques. Hybridisation is the mating of individuals of different genotypes to produce offspring that are different from the original "pure" breed. In a sense, it belongs to the natural exchange of genes that can occur in nature.
Colorful Waxy Corn,Colorful Mottled Waxy Corn,Single Packed Mottled Waxy Corn,Single Packed Colorful Waxy Corn
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