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Plants groups

There are many ways of classifying plant groups but, from an agricultural and horticultural point of view, a useful way is to divide them into annuals, biennials and perennials according to their total length of life. [Pg.9]

Typical examples are wheat, barley and oats that complete their life history in one growing season, i.e. starting from the seed, in one year they develop roots, stem and leaves and then produce an ear which flowers and sets seed before dying. [Pg.9]

They live for more than two years and, once fully developed, they usually produce seeds each year. Many of the grasses and forage legumes are pereimials, as are many of the horticultural fruit crops such as raspberries or apples, and some energy crops such as willow and Miscanthus. [Pg.9]


Plant groups Model crop used Whole plant yield, dry t/(hm -vr) Cost, /t... [Pg.44]

Plant groups such as Brassica have members with the ability to extract selenium from soil. Brassica juncea, in particular, has been the focus of much research due to its relatively large biomass... [Pg.391]

A comparison of Tables I and II shows that the major coal measures of the world were derived from several quite different floristic assemblages. Thus the plants that gave rise to coals in Europe and the east and midwest of North America in the Carboniferous were part of a complex flora that included ferns, seed ferns, horsetails, lycopods and conifer precursors. Except for the conifer precursors, lignified xylem tissues tended to be minimal in these plant groups and unusually large leaves with extensive waxy cuticles were characteristic of three of the groups. [Pg.11]

The chemical basis for the observed differences in leaf food quality is unknown. Little differences were found in Folin-Denis total phenolic or proanthocyanidin extinction coefficients of 85% aqueous methanol leaf extracts from the various plant groups throughout the experiment. There were no indications of changes in leaf quality of control willows 60 m distant from willows attacked by fall webworm. [Pg.66]

Indolizidine alkaloids from the plant groups Ipomea, e.g. ipalbidine (191a) (70T3829), Tylophora, e.g. tylophorine (213) (B-67MI30800) and Elaeocarpus, e.g. elaeocarpine (200a) (B-73MI30800) have been studied to a greater extent. [Pg.478]

Although the indolizine nucleus appears not to occur naturally, its perhydro derivative, commonly named indolizidine, is the alkaloid 8-coniceine, and this nucleus is to be found in several groups of alkaloids including those from the plant groups Ipomoea, Elaeocarpus, Tylophora, Amaryllidaceae, and Orchidaceae. Since the chemistry of these alkaloids has been reviewed regularly,1 only selected examples will be taken from the natural products field. [Pg.104]

Botanical Composition. Figure 1a shows the relative abundances of plant groups observed in microtome sections of the peats. [Pg.30]

LPS has been found not only to induce defense responses directly but also to promote or prime an early triggering of defense responses upon subsequent bacterial inoculation. An example of this is the LPS priming of the synthesis of the antimicrobial compounds feruloyl tyramine (FT) and p-coumaroyl tyramine (CT) in pepper plants (Newman et al., 2001, 2002 Prime-A-Plant Group, 2006). LPS treatment of pepper leaves does not lead to synthesis of FT and CT. However, these compounds are synthesized more rapidly upon bacterial inoculation into LPS pre-treated than water pre-treated plants (Newman et al., 2001, 2002 Prime-A-Plant Group, 2006). [Pg.390]

Generally, cables for intrinsically safe circuits are subject to voltage tests. Cables intended for installation in chemical plants (Group II application) shall be tested with at least 500 Vrms AC between (Fig. 6.227(a)) ... [Pg.400]

DasGupta, S., Adhikari, J., and Majumder, A.L., 1984, L-myo-inositol 1-phosphate-synthase from lower plant groups Partial purification and properties of the enzyme from Euglena gracilis. Physiol. Plant. 61 408—416. [Pg.337]

Table 143 Regional net production estimates for four plant groups contributing to primary production on floodplain of the Amazon Edver between 70.5 W and 52.5 W. Table 143 Regional net production estimates for four plant groups contributing to primary production on floodplain of the Amazon Edver between 70.5 W and 52.5 W.

See other pages where Plants groups is mentioned: [Pg.239]    [Pg.105]    [Pg.41]    [Pg.12]    [Pg.82]    [Pg.175]    [Pg.72]    [Pg.63]    [Pg.42]    [Pg.32]    [Pg.48]    [Pg.1009]    [Pg.116]    [Pg.90]    [Pg.94]    [Pg.231]    [Pg.216]    [Pg.139]    [Pg.402]    [Pg.180]    [Pg.134]    [Pg.89]    [Pg.29]    [Pg.158]    [Pg.159]    [Pg.198]    [Pg.199]    [Pg.224]    [Pg.431]    [Pg.128]    [Pg.148]    [Pg.322]    [Pg.364]    [Pg.461]    [Pg.246]    [Pg.235]    [Pg.246]   
See also in sourсe #XX -- [ Pg.9 ]




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