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Browning of the chestnut burs at the blossom end may be a first sign in August. At harvest time, blackening of pointed end of the chestnut shell and kernel indicates infection. The extent of blackening can vary. It can range from a barely visible black tip of the kernel to the whole nut being black.
An edible seed [n 1] is a seed that is suitable for human or animal consumption. Of the six major plant parts, [ n 2 ] seeds are the dominant source of human calories and protein . [ 1 ] A wide variety of plant species provide edible seeds; most are angiosperms , while a few are gymnosperms .
Walnut trees are any species of tree in the plant genus Juglans, the type genus of the family Juglandaceae, the seeds of which are referred to as walnuts.All species are deciduous trees, 10–40 metres (33–131 ft) tall, with pinnate leaves 200–900 millimetres (7.9–35.4 in), with 5–25 leaflets; the shoots have chambered pith, a character shared with the wingnuts (Pterocarya), but not ...
In some chestnut-growing regions, infestation of the fruit by weevil larvae can reach 90%. [1] In China, in 2001, annually, about 20–30% of harvested chestnuts were wasted and spoiled by insect infestation and mildew. [6] In Hungary, Curculio elephas swarms in chestnut orchards around August 20, particularly strongly around noon and in sunny ...
[7] [8] The disease has been reported in Europe, Oceania, and has recently been found in North America; [9] for this reason, the fungus is considered a potential threat to the reintroduction of the American chestnut. [10] [11] In brown chestnut rot, Gnomoniopsis castaneae infects the kernel of the nut with browning and necrosis of endosperm and ...
Inocarpus fagifer, commonly known as the Tahitian chestnut or Polynesian chestnut, [1] is a species of flowering plant in the subfamily Faboideae of the legume family, Fabaceae. The tree has a wide range in the tropics of the south-west Pacific and south-east Asian regions, and a history of traditional use by the peoples of Polynesia and ...
Pachira aquatica (the Malabar chestnut) is quite similar looking, has similar culinary and ornamental uses, and goes by many of the same common names. P. aquatica has woody gray bark, while P. glabra s ' s is a smoother greenish-gray, [ 2 ] and P. aquatica will only develop a swollen trunk with age. [ 5 ]
The nut is an ellipsoidal drupe available from August to January, 3–4 cm long, with flesh surrounding the kernel, 5–6 mm thick, smooth in texture and can be red or green. The kernel shell is extremely hard and makes germination difficult. The nuts are usually found under the mother trees. Common names include Gabon nut and African walnut.