Etiolated wheat coleptiles were inhibited 100 and 40%, respectively, at 10-3 and 10-4 M.
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The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elongation and the CODcr of the mother liquor scraps.
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The toxicity of MSG wastewater to the test crops was in the order of tomato >amp;gt; Chinese cabbage >amp;gt; wheat, indicating that tomato was the most sensitive to the wastewater, and could be considered as an ideal toxic bioindicator.
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The initial stage of amino acid metabolism was intensified in germinating wheat seeds with exogenous glutamine and proline.
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The strain formed extracellular phenol oxidases during surface growth on a liquid medium in the presence of guayacol and copper sulfate, as well as during submerged cultivation in liquid medium containing wheat bran and sugar beet pulp.
This paper analysed and studied the relationships between structures and power parameters of type of cylinder, the velocity of feed chain, rpm of cylinder, type of threshing and feed rate to the threshing loss and power consumption in semi-feeding threshing apparatus. As well as the three kinds of concaves have an influence upon the threshing loss and grain-cleaning rate.The experiment has proved that the side-threshing is optimal to the semi-feed threshing type. Either wheat or rice threshing can be ...
Based upon analysis of the relation between kinematical of rake finger and crops, two fundamental equations are derived. According to these equations, this paper discusses and suggests three parameters. The rake finger is opened up atψ = 80°~π/2 to reduce K(ratio between kinematical velocity of rake finger and forward velocity of semi-feed combine). θ(inclination of the stalk lifter)in a range from 60° to 65° and K from 1.44 to 3.51 can adapt better to the harvesting of wheat and dwarf rice.These esti...
The grinder plate type seed inetering device is a new type of feeding device used for planting wheat, sorghum, rice, pea, bean, rape, millet and flaxseed with a better uniformity of seed distribution.The seed hopper used for grinder plate type metering device can be also used for the edge-dropplate seed-metering device for hill-drop or single feed of corn and the reverse-feed droping mechanism for drilling undelinted cottonseed.This paper describes the structural parameters, technology of the metering...