root surface

Listing 1 - 10 from 1000 for root surface

Native Plants and Phosphate
... root and this, in turn, decreases the concentration near the oxide particles. Consequently ions jump from the surface of the particles into the solution. Because the surface ... plants have root hairs. They are a cheap way of getting a lot of root surface up close to the soil particles. Many plants have fungi associated with the roots - mycorrhizas. Many mycorrhizas function as super root ...
farrer.riv.csu.edu.au

Root Knot Nematode, HYG-3115-96
... are usually found. Also, glistening white to yellow egg masses are present on the root surface. The galls formed by clubroot do not possess this characteristic and are usually ... root surface. Eggs, particularly in the egg mass, can withstand unfavorable environmental conditions. They represent one means of overwintering. Root knot nematodes may also overwinter in the soil in a juvenile stage. Root ...
ohioline.osu.edu

Cotton Root Rot
... from the soil with little effort. Root bark is decayed and brownish, and bronze colored wooly strands of the fungus are frequently apparent on the root surface. The fungus generally invades new ... fungus produces root-like (rhizomorph) strands that grow through the soil until coming in contact with growing plant roots. Strands grow on roots toward the soil surface. Immediately below the soil surface ...
plantpathology.tamu.edu

Management of Rhizoctonia Root Rot of Sugarbeet
... root in multiple areas which may lead to numerous slightly sunken lesions, either with or without small cracks, on the root surface (Figure 5). The margin between healthy and diseased tissue in the interior is sharply defined. The rotted root ...
www.uidaho.edu

Integrated Pest Management Guide for Sugarbeet Root Maggot
... Plants and Damage Only larvae cause damage. They reduce yield tonnage and lower root sucrose content by scraping the root surface with rasping mouthhooks. They do not tunnel into the beet like ... the entire root surface. Feeding on the root tip causes the taproot to fork and branch. Above ground, damaged plants wilt during May and June, especially between irrigations. Losses are compounded when root- ...
www.uidaho.edu

Desirable Vegetable Varieties: Parsley Root
... earlier, more aggressive radish seedling can break the surface for the parsnip--or carrot--seedling, then pull the radish stem when the later root-crop seedling emerges; we don't like putting ... scheme.) Growing Parsley root, like parsley as such, requires moist soil. Because the chief part of the plant's root system--the wanted root itself--lies relatively close to the surface, and the plant ...
growingtaste.com

nvps journal:PRELIMINARY REPORT ON STEM AND ROOT ROT OF VIOLA AND PANSY
... brittle and bears on its surface abundant black or greenish ... Root and stem rot should yield to adequate cultural treatment. Given fertile open soil, which promotes deep action and gives good ventilation, along with the protection of the ground surface from undue heating, the Viola should prove quite hardy. If the Pythium is present in any soil, as it is quite likely to be, a check of root ...
myweb.tiscali.co.uk

Red Stele Root Rot of Strawberry, HYG-3014-95
... University Extension Fact Sheet Plant Pathology 2021 Coffey Road, Columbus, Ohio 43210-1087 Red Stele Root Rot of Strawberry HYG-3014-95 Michael A. Ellis Many commercial strawberry cultivars are ... roots, to which they are chemically attracted. Zoospores also may swim to the soil surface, where surface runoff water may carry them relatively long distances. Zoospore activity may occur at soil ...
ohioline.osu.edu

Phytophthora Root and Crown Rot of Fruit Trees, HYG-3029-95
... line of demarcation between diseased and healthy tissue distinguishes Phytophthora root and crown rot from other causes of tree decline and ... where they infect. They may also swim to the soil surface and move over longer distances in runoff water. The longer ... Identification Sheet No. 7. Control Control of Phytophthora crown and root rots is most successful using an integrated program of cultural ...
ohioline.osu.edu

Phytophthora Root Rot of Raspberry, HYG-3207-98
... root system of infected plants to diagnose the disease. Suspect plants should be dug up and the epidermis (outer surface) scraped off the main roots and crown. On healthy plants, the tissue just beneath the epidermis will be white; on plants with Phytophthora root ... ,' and 'Nordic' are considered to be fairly resistant. Fungicide. Phytophthora root rot of raspberry can be partially controlled ...
ohioline.osu.edu