Posted inPlant Pathology

LATE BLIGHT OF POTATO

The disease was recorded simultaneously in Europe and North America in 1830. It became very well established in Europe by 1842 and was one of the important causes of the…
Posted inPlant Pathology

EARLY BLIGHT OF POTATO

POTATO •A member of the Solanaceae family, the cultivated potato (Solanum tuberosum) is closely related to the tomato, pepper, and eggplant. •Indians in Peru were the first people to cultivate…
Posted inPlant Pathology

Loose smut of wheat

Ustilago triticOrder: Ustilaginales Family: Ustilaginaceae Blossom penetration type Smut mean sooty (black) or charcoal like powder Responsible for heavy losses when susceptible varieties with infected seeds are grown year after year…
Posted inBryophytes

LIFE CYCLE OF  PORELLA

Table of content 1.Introduction 2.Systematic position of Porella 3.Habit and distribution 4.Morphological characters 5.Anatomy of stem 6.Anatomy of leaf 7.Reproduction of Porella 8.The Gametophyte stage 9.The male Gametophyte 10.The female…
Life History of Polytrichum
Posted inBryophytes

Life History of Polytrichum

Occurrence Polytrichum have worldwide distribution with 111 species. In India only 5 species are found and common species is P. alpinum. They are very common in cool temperature and tropical…
Posted inCell Biology

Nucleus

Structure Two nuclear membranes, inner and outer nuclear membranes. Nuclear pore complexes, which allow the regulated exchange of molecules between the nucleus and the cytoplasm Space between the inner and…