Observations were made on the nematode infected roots of pomegranate, jujube, apple, date-palm, chilli, papaya and grapevines. The nematodes caused severe damage to the root tissue affecting both the cortical and medullary regions. Main findings were erosion of cortical region, thickening of wall and enlargement of cells with irregular outline resulting in giant cell. Broken cell boundaries with fusion of several cells resulting in large spaces were observed. Formation of very large multinucleated cells with egg masses and cells with section of nematodes was a common finding in some of the...

Root tissue damage by endoparasitic nematodes in ber root is described here based on original research. Grossly the infected roots appear swollen and black in colour as compared to healthy roots. Sections of infected roots show great variation in the cell size, some cells were enlarged with broken walls while others were hypertrophied due to large egg masses and sections of larvae in them. Increase in the number of cells and formation of giant cells was a common finding. Epidermis and endodermis as well as dermal regions were affected. Syncytial formation in cortical region was the most...

Pomegranate are delicious, popular fruit in Pakistan and several other countries of the world. The variety most popular in Pakistan is known as "Khandhari anar." This fruit, its juice, seeds and parts of the tree are beneficial in several diseases and in promoting health. Roots of the tree are attacked by some nematodes. During present study tissue damage in roots infected by Meliodogyne nematodes was observed. Nematodes caused severe damage to whole thickness of the root. Lesions were formed at the site of entry with necrosis, enlargement of cells into giant cells, containing egg masses and...

Root-knot formation in banana caused by the nematode Meloidogyne javanica and root tissue damage is described here. Both the light and scanning microscopic studies were carried out. Gross morphology and productivity of banana plant was affected due to this infection. Yellowing of leaves, stunting, reduced growth of plant and less fruit production was observed. Severe damage was also caused to root tissue including giant cell formation, migration of nematodes produced canal, cavity formation in which females were present, with surrounding giant cells, xylem vessels were severely disturbed....

Almond belongs to plant family Rosaceae and sweet almonds have a faint, nutty fragrance and taste, bitter almonds taste bitter and develop an intensive characteristic aroma with moisture. Almond contains about 50% of a fatty oil. It is made up of glyceroids, oleic acid, linoleic acid, palmitic acid. It contains water, calories, proteins, fat, carbohydrate, crude fiber, thiamin, riboflavin, niacin, calcium, phosphorus, iron, potassium and vitamins. Almonds are used in candies, baked products and confectioneries and oil obtained from kernels. Leaves are used in the treatment of diabetes. The...