Plant Yield

In the future, and whichever strategic model they adopt, successful agribusiness companies will continue to deploy their strengths across a broad portfolio to increase plant yield, which can only be done in three ways plant protection increasing yields through improved seed quality and enhancing yield and quality in ways targeted to consumer value. 

Substantial yield increases can also be achieved by exploiting the full genetic potential of seeds, whether by modern breeding technologies or genetic modification. Hundreds of new seed varieties with improved characteristics are introduced every year. Over the past 30 years, the yield of major field crops such as com, soya, wheat, and rice has increased by 60 to 80 percent and further increases are forecasted. Appropriate treatment of those seeds with crop protection chemicals before planting has proven to increase plant vigor overall. 

Syngenta s personal size watermelon quintupled in 2004 alone to USD 35 million. 

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Phormium. The Phormium tenax plant yields a long, light-colored, hard fiber also known as New Zealand hemp or flax, although it has none of the bast fiber characteristics. The plant is a perennial of the Agavaceae with leaves up to 4 m long and 10 cm wide. The fibers are recovered by mechanical decortication. 

Between 50 and 60% of the formaldehyde is formed by the exothermic reaction (eq. 23) and the remainder by endothermic reaction (eq. 24) with the net result of a reaction exotherm. Carbon monoxide and dioxide, methyl formate, and formic acid are by-products. In addition, there are also physical losses, hquid-phase reactions, and small quantities of methanol in the product, resulting in an overall plant yield of 86—90% (based on methanol). 

In contrast to the silver process, all of the formaldehyde is made by the exothermic reaction (eq. 23) at essentially atmospheric pressure and at 300—400°C. By proper temperature control, a methanol conversion greater than 99% can be maintained. By-products are carbon monoxide and dimethyl ether, in addition to small amounts of carbon dioxide and formic acid. Overall plant yields are 88—92%. 

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

Pharmacology. A considerable number of menispermaceous plants yielding alkaloids are used as crude drugs in the Far East but the alkaloids so far isolated from them, though pharmacologically active, do not seem... 

Another variely of the plant yielded ai at flS and coniaining much melhvl-obai Ic Selaaih hidjan. 

Ilyuopn , o ctimlis is a plant iniigenons to the Mediterranean countries and Central Asia. The fre.sh plant yields, on distillation, up to 0-3 per cent, ol esgcnlial oil having (he following characlera... 

The dov,-ri of this plant yield about 11 1 p -r coal, ol esaouiia oil which has hcon rjamined by Schirnme i Co, li has the lollowing r.haraeiers —... 

Biaaiol ilyrrh. The principal plant yielding this resin la probably (loinmiphora crvLhttra.. 

For wheat plants grown to maturity under irrigation (43) in a soil of neutral pH (44), one can calculate that a mature wheat plant (yield 13.2 g d m [grams of dry matter)] with a Mn concentration of 42 mg/kg took up 556 pg of Mn [i.e., (556/55) X 2 microequivalents of Mn], If ascorbic acid (M, a = 176), or another reducing agent of similar molecular weight and C content is assumed to be the... 

Plants Yielding Stimulatory Extracts Geranium carplinianum L. Conyza canadensis (L.) Cronq. 

Plant yield is a measure of the overall performance of the plant and includes all chemical and physical losses. 

Plant yield (applied to the complete plant or any stage)... 

Unit 3, Scrubber. To give a high plant yield, the scrubber would be designed to recover most of the alcohol in the vent stream. Assume 99 per cent recovery, allowing for the small loss that must theoretically occur, 0 431 = 0.99. 

Transplastomic plants Yield, multiple gene expression, low toxicity, containment Absence of glycosylation... 

Virus infected plants Yield, timescale, mixed infections, epitope presentation systems Construct size limitations... 

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