Sweet corn testing

Sweet corn (scientific name: Zea mays var. rugosa Bonaf.) is a plant of the Poaceae family and the maize genus, belonging to the sweet corn type of the maize species. The stem is upright and 1-3 meters high. The stem is thick, with long internodes and leaves at the nodes. The long and large leaf sheaths surround the stem. Poor branching ability, prone to adventitious roots in several nodes near the ground below. The flowers are monoecious and heteroecious, with the male flowers bearing spikes at the top and the female flowers bearing spikes between leaf sheaths, with each node bearing one spike. Each spike is wrapped in several rows of total bracts in a spindle shape, and the style with a purple red pistil at the top is soft hairy and drooping. The number of ovaries is consistent with the number of long soft hairs. Corn is a wind borne flower that is prone to hybridization, and varieties should be isolated during seed retention. The beginning and color of grains vary depending on the variety. Native to America. Sweet corn from China was introduced from the United States in the 1940s. Sweet corn is a temperature loving crop, and its seeds germinate when the soil temperature is 12-15 ℃. The temperature range for germination is 12-38 ℃, making it a short-day crop. During the growth period, more water is required, and the annual rainfall is required to be between 500-1000 millimeters. It has a wide range of adaptability to soil, but it is advisable to choose sandy loam soil with deep, loose, well drained soil layers, and rich in organic matter for growth, with a pH of 5-8. Sweet corn is more nutritious than ordinary corn, with thin seed coat, fresh waxy taste and sweet taste. It is suitable for steaming, baking, cooking (corn Congee, corn soup, soup, etc.), and can also be processed into cans and exported fresh ears, which is very popular with consumers. Sweet corn is a variant of corn cultivation, which is produced by genetic mutations in the cultivation environment of ordinary corn and is isolated and bred. It is named after its seeds that contain a lot of sugar during the milk ripening period, are full and juicy, and have a delicious and sweet taste. Sweet corn stalks are upright and 1-3 meters tall. The stem is thick, with long internodes and leaves at the nodes. The long and large leaf sheaths surround the stem. Poor branching ability, prone to adventitious roots in several nodes near the ground below, inserted directly into the soil to support the stem. The flowers are monoecious and heteroecious, with the male flowers bearing spikes at the top and the female flowers growing in spikes between leaf sheaths. Each node produces one spike, and some also produce 2-3 spikes. Each spike is wrapped in several rows of total bracts in a spindle shape, and the style with a purple red pistil at the top is soft hairy and drooping. The number of ovaries is consistent with the number of long soft hairs

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