Perennial plants

Eastern gama grass is a variety of a prairie plant that produces seeds rich in protein. It is the subject of sustainable agriculture research because it produces an abundance of seeds and yet is a perennial plant that is resistant to drought. 

Fletcher JS, RS Hegde (1995) Release of phenols by perennial plant roots and their potential importance in bioremediation. Chemosphere 31 3009-3016. 

Elder is a perennial plant and loves to grow in moist areas where the soil is rich in organic material, lime and nitrogen, It does well in semi-shaded areas... 

These data amply confirm the original contention concerning the feasability of using cellulolytic enzyme systems for the isolation of additional amount of native lignin from various woody tissues. Moreover, this method can be applied not only to perennial plants, but also to annual plants. 

It weis found that hardwood lignins yielded both guaiacyl and syringyl units on oxidation, whereas softwood lignins yielded only guaiacyl units. Hibbert and co-workers (20), (21) distinguished perennial plant lignins... 

Perennial plant, Rubus frondosus Giant foxtail, Setaria faberii Earthworm, Lumbricus rubellus Bluegrass, Poa spp. 

Japanese brome, Bromus japonicum Control area Perennial plant Bluegrass Japanese brome... 

In terrestrial plants, paraquat s action is at the point of local absorption (Anonymous 1963). Characteristic damage signs to susceptible species include wilting and general collapse in herbaceous plants. Regrowth may occur in some perennial plants, but in resistant species temporary scorch may be the most marked effect (Anonymous 1963). In sugarcane (Saccharum officinarum), paraquat... 

Perennial plants with shielded buds and vigorous asexual reproduction are relatively radioresistant. 

According to Bassam (1998) who provided a well-established definition, energy crops are those annual and perennial plant species that can be cultivated to produce solid, liquid or gaseous energy feedstock. The organic residues and... 

The active components of the herbaceaous perennial plant Hypericum perforatum are antiinflammatory, antidepressive and healing agents, therefore, their analysis is of considerable importance for health care. Samples were prepared by extracting the dried flowering tops by hot methanol. RP-HPLC separations were performed in an ODS column (250 X 4.6 mm i.d. particle size 5 pm) thermostated at 30°C. The steps of gradient elution are listed in Table 2.49. 

Salvia frigida Boiss. is a perennial plant, growing to height of 10-30 (-50) cm with pink flowers. Salvia frigida Boiss. was collected in June 2005 from Keltepe-Kocaeli-Turkey. A voucher specimen is deposited in the Herbarium of the Biology Department, University of Marmara. 

Panax ginseng is a perennial plant, growing 30-80 cm high. It has a round stem and bears terminal whorls of 5-8 palmate leaves (Gruenwald et al. 1998). The flowers have greenish-yellow corollas and grow in 1-3 umbels of 15-30 flowers. The fruit are red, pea-sized, and round. The rhizome is fusiform and is the principal part for medicinal interest. 

Catnip (Nepeta cataria) is a coarse green-grey leaved perennial plant with spotted white tubular flowers (Kowalchick and Hylton 1987). It has a long recorded history of use, extending back to... 

As with all perennial plants, appropriate soil preparation, including removal of all perennial weeds, is essential before planting (see The Soil, pp.34-35, Weeds and Weeding, pp.76-79, and also Herbaceous plants, pp.190-191). 

Crop Legume/ Nonlegume Annual/ Perennial Planting Time Seed per 1,000 ft. Comments... 

Crammer B, Ikan R, Weinstein V, Process for the extraction ofDiterpene Glycosides From certain Perennial Plants of the Compositae Family, Israel Patent No. 81351, 1990. 

Cell Wall Alterations and Antimicrobial Defense in Perennial Plants... 

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