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The term colewort is a medieval term for non-heading brassica crops. [2] [3]The term collard has been used to include many non-heading Brassica oleracea crops. While American collards are best placed in the Viridis crop group, [4] the acephala (Greek for 'without a head') cultivar group is also used referring to a lack of close-knit core of leaves (a "head") like cabbage does, making collards ...
Green leaf volatiles (GLV) are organic compounds released by plants. [1] Some of these chemicals function as signaling compounds between either plants of the same species, of other species, or even different lifeforms like insects.
Spinach, as an example of a leaf vegetable, is low in calories and fat per calorie, and high in dietary fiber, vitamin C, pro-vitamin A carotenoids, folate, manganese and vitamin K. [1] The vitamin K content of leaf vegetables is particularly high since these are photosynthetic tissues, and phylloquinone is involved in photosynthesis. [2]
Arctostaphylos patula at the base of Black Butte, a volcanic vent of Mount Shasta (elevation 1,093 m or 3,586 ft). The distribution of A. patula is one of the most widespread of the manzanitas, spanning most of western North America.
Cabbage plants. Cruciferous vegetables are vegetables of the family Brassicaceae (also called Cruciferae) with many genera, species, and cultivars being raised for food production such as cauliflower, cabbage, kale, garden cress, bok choy, broccoli, Brussels sprouts, mustard plant and similar green leaf vegetables.
Raw green beans are 90% water, 7% carbohydrates, 1% protein, and contain negligible fat. In a reference amount of 100 grams (3.5 oz), raw green beans supply 36 calories , and are a rich source (20% or more of the Daily Value , DV) of vitamin K (41% DV) and a moderate source (10-19% DV) of vitamin C , vitamin B6 , and manganese .
The smell of freshly cut grass is an odour caused by green leaf volatiles (GLVs) released when it is damaged. Mechanical damage to grass from activities such as lawnmowing results in the release of cis-3-hexenal and other compounds that contribute to a grassy or "green" smell.
A Liquidambar leaf with interveinal chlorosis Lemon shrub with chlorosis. Chlorosis is typically caused when leaves do not have enough nutrients to synthesise all the chlorophyll they need. It can be brought about by a combination of factors including: a specific mineral deficiency in the soil, such as iron, [3] magnesium or zinc [4]