Sweet corn

Concentrate the sample (remove acetone) under nitrogen to ca 20-25 mL using a TurboVap (water-bath at 50 °C). Transfer the sample into a 50-mL polypropylene centrifuge tube. Rinse the TurboVap vessel with 5 or lOmL of pFI 6 buffer solution. The amount of pH 6 buffer required depends on the matrix being analyzed and should be determined as needed. All matrices need 5 mL of the buffer solution to adjust the sample to pH 6, except for sweet corn (ears, forage, and stover), which requires 10 mL. Add the rinse buffer to the sample. Rinse the TurboVap vessel with 10 mL of hexane and add the hexane to the sample. 

Field and sweet corn, soybeans, tomatoes, soil, and water... 

Citrus, cotton, melon, watermelon, banana, tomato, eggplant, onion, cabbage, carrot, chicory, leek, maize, hazelnut, potato, rice (straw, grain), air, sweet corn, soybean, French bean, sugar beet, flowers and ornamentals, sunflower, tobacco, soil and water... 

Smith CL (2000) Selected studies on the chemical ecology of Orius insidiosus (Say) in transgenic sweet corn. MSc thesis, University of Maryland, p 78... 

In total, 12,264 samples were collected and analyzed for pesticide residues in the 2001 PDP (USDA, 2003). Specific fruits and vegetables analyzed in the 2001 PDP included apples, bananas, broccoli, carrots, celery, cherries, grapes, green beans, lettuce, mushrooms, nectarines, oranges, peaches, pineapples, potatoes, canned sweet corn, canned sweet peas, and canned tomato paste. Fruits and vegetable samples were taken most commonly (9903 samples), followed by beef (911 samples), enriched milled rice (689 samples), poultry (464... 

Boron deficiency on sweet corn overliming can disrupt the uptake by plants of this trace element... 

Seasonal bounty Fresh salad leaves and the promise of tender young carrots and beans to come, then sweet corn ripened by the summer sun expectation is part of the pleasure of vegetable-growing. 

Sweet corn does not fit in with any of the other family groups. It makes a useful filler for gaps in your rotation plan. Also exempt are the perennial vegetables, which occupy the same space year after year (see overleap. 

Cabbage family Dig in winter vetch in the spring, or add compost Sow and plant summer brassicas plant overwintering brassicas with lettuce and other intercrops (see p.259) between. If you don t want so many brassicas, grow sweet corn. Apply compost to the overwintering plants in late summer spread leaf mold over the rest of the plot... 

Plot 2 Sweet corn, intercropped with salads in the early season. Follow with a green manure. 

Raise tender plants, such as string beans, tomatoes and sweet corn. Indoors or under cover (see pp.198-199) to give them a head start, then transplant to their growing positions when outdoor conditions are right. 

Tall plants like sweet corn, which initially cast little shade, can be undercropped with lower-growing plants like dwarf string beans, lettuce, or mizuna, or spreading vegetables such as zucchini and pumpkins, to make maximum use of space. Shade-tolerant vegetables like lettuce and spinach can be sown between rows of climbing beans. 

Some vegetables—peas and sweet corn in particular, but also young and leafy crops—taste best when eaten as soon as possible after picking. However, most keep well for a few days in a cool garage or in the refrigerator. Potatoes, onions, carrots, and other root crops can be stored to feed you over the winter months. 

Susceptible plants Squash-family plants, sweet corn, other vegetable crops, and flowers. 

Susceptible plants Brassicas, beans, peas, sweet corn, tomatoes, and peaches. 

Camerbn, J. W., and O. C. Taylor. Injury to sweet corn inbreds and hybrids by air pollutants in the field and by ozone treatments in the greenhouse. J. Environ. Qual. 2 387-389, 1973. 

Substrate and Pretreatment. Sweet corn (hybrid Lingodor) of W.H. Perron Laval, Quebec was grown in well prepared soil in a plot of 3 x 2 meters. Corn stalks were ground to 20 mesh to be used as a substrate. It was pretreated with 1.5% sodium hydroxide (NaOH) wt/vol with substraterwater ratio of 1 10 at 121 C for 60 minutes. The substrate was not washed after the pretreatment, and all the solubilized polymers (hemicelluloses and lignin) were retained along with the insoluble polymer (cellulose) in the fermentation medium. The composition of corn stalk is presented in Table 1. 

Warman, P. R., Havard, K. A. (1998). Yield, vitamin and mineral contents of organically and conventionally grown potatoes and sweet corn. Agric. Ecosystems Environ., 68, 207-216. 

Monosaccharides Glucose and fructose are the principal mono saccharides found in food. Glucose is abundant in fruits, sweet corn, corn syrup, and honey. Free fructose is found together with free glucose and sucrose in honey and fruits... 

Vegetables Bean (lima), beet, beet greens, cabbage, carrot, lettuce, onion, pea. spinach, sweet corn, sweet potato, tomato... 

CY Lee, PE McCoon, JM LeBowitz. Vitamin A value of sweet corn. J Agric Food Chem 29 1294-1295, 1981. 

Alfalfa, Lima Bean, Dandelion, and Sweet Corn Kernels. Extraction. Two hundred-gram samples were treated like kudzu vine, except for an additional ethyl acetate wash after overnight steeping. The combined filtrates were evaporated to about 3 ml., and stored in a refrigerator for several months. The slurries were then vacuum-dried and extracted with aqueous pH 7 phosphate buffer. 

Preliminary Purification of Dandelion and Sweet Corn. The plant extract in pH 7 buffer was sealed in a Visldng cellulose dialysis membrane bag, immersed in a volume of aqueous pH 7 buffer equal to twice the volume of its contents, and shaken for at least 2 hours. The outside solution was replaced, and die entire operation repeated twice. The three outside buffer solutions were combined. A dialysis blank was prepared in similar fashion. The dialyzate was washed once with ethyl acetate. The aqueous phase was adjusted to pH 2 with sulfuric acid and extracted several times with ethyl acetate. The combined ethyl acetate extracts were evaporated to dryness, and redissolved in a small volume of methanol. 

Peoples et al. (5) reported that 351 cases of occupational illness caused By parathion exposure were seen by California physicians in 1975. Seventeen of these cases can be regarded as worker reentry incidents. Knaak et aj. (6) reported a case of 118 worker illnesses from dialifor exposure in a California grape vineyard in 1976. Davies et al. ( 7) reported 2 cases (24 fieldworkers) involving parathion in Florida sweet corn. In 1975, one death was reported from North Carolina workers reentering a parathion-treated tobacco field 8). 

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