Research Of Manganese Sulfate On The Growth And Starch Synthesis Accumulation Function Effect Of Potato

During the two years of 2008-2009, Based on KeXin 13 for the trail take the potato variety gram, expands the time leaf surface in the squaring stage and the tuber to spurt executes the manganese sulfate, establishes 5 manganese sulfate densities, respectively is 0.05% (T1), 0.2% (T2), 0.5% (T3), 1.0% (T4), 1.5% (T5), take spurts executes the clear water as the comparison (CK). The research manganese sulfate to potato morphogenesis and the photosynthesis physiology, the sugar divides the change, the starch synthesis and the accumulation, the output quality influence, and between inner link and possible influence mechanism. Through this topic implementation, but lays the foundation effectively for the potato nutrition regulation, simultaneously, has the reference value to other trace element's research, is the potato high starch cultivation measure provides the theory basis. The main result is listed as follows:1 The right amount manganese sulfate (0.05%~0.5%) can promote potato hight to increase, the stem diameter to increase, to enhance plant leaf area, to increase on the shoot dry weight, the promotion potato root system growth, the performance radical increases, the root volume to increase, the root volume to increase, to enhance the root activity, the root dry weight to increase, favors potato adult plant morphogenesis, the enhancement photosynthesis, raises the total chlorophyll content, the photosynthesis speed; The excessive manganese sulfate (1.0%~1.5%) has had the negative influence to adult plant morphogenesis and the photosynthesis physiology.2 After the processing 7~28d, in the potato leaf blade returns to original state the sugar, the sucrose, the starch content to accumulate massively; After the processing 28~49d, in leaf blade's return to original state sugar, the sucrose, the starch big content present reduce the tendency; After the processing 49~63d, the return to original state sugar and the sucrose have the accumulation phenomenon in the leaf blade. The right amount manganese sulfate (0.05%~0.5%) the leaf spurts, in various times leaf blade's various material content increases along with it; The excessive manganese sulfate (1.0%~1.5%) the leaf spurts, in various times leaf blade's various material content reduces.3 After the processing 7~28d, in the stem pole returns to original state the sugar, the sucrose, the starch content to accumulate massively; After the processing 28~49d, in the stem pole returns to original state the sugar, the sucrose, the starch to transport to the tuber, the content has the declining trend; After the processing 49~63d, the starch content increases, the sucrose has the accumulation phenomenon in the cane. The right amount manganese sulfate (0.05%~0.5%) the leaf spurts, in various times stem pole's various material content increases along with it; The excessive manganese sulfate (1.0%~1.5%) the leaf spurts, in various times stem pole's various material content reduces.4 Before the tuber expands the time, in the tuber returns to original state the sugar, the sucrose content to present reduces the tendency, but in the tuber starch content assumes increases the change; Later period when in the tuber the starch content achieves the maximum, the return to original state sugar content falls the minimum value, but in the tuber the sucrose also has the accumulation. Along with manganese sulfate density's increase, in each birth time potato tuber's various material content correspondingly increases, the right amount manganese sulfate leaf spurts can obviously promote the photosynthesis product synthesis and the assignment, enhanced the potato tuber starch synthesis and the accumulation quantity. 5 In the earlier period, the invertase and the sucrose phosphoric acid synzyme's active performance are the enhancement tendency, the intermediate stage performance to weaken the change, later period presents the enhancement change; Before the tuber expands the time, the tuber sucrose synzyme and tuber invertase activeness also presents drops the change first; Later period presents the strong tendency. Before the tuber expands the time, in the tuber ADPG-Ppase, displays reduces the tendency; The mid and late part presents increases the change. Right amount manganese sulfate processes can remarkable enhance in the leaf blade and the stem in invertase activeness, the leaf blade and the stem the sucrose phosphoric acid synthesis enzyme activity, tuber invertase activeness, in the tuber sucrose synthesis enzyme activity, the tuber ADPG-Ppase activeness, simultaneously has also accelerated the tuber starch synthesis and the accumulation. The excessive manganese sulfate has negative effect to the potato tuber starch's synthesis and the accumulation.6 Right amount manganese sulfates (0.05%~0.5%) increases the potato output; Excessive manganese sulfate (1.0%~1.5%) to output enhancement negative influence.Manganese sulfate leaves spurt can improve the commodity potato quality. Along with manganese sulfate employment quantity's increase, the return to original state sugar, the sucrose, the starch, the soluble protein, the Vitamin C content performance after increases first reduces the change. The right amount manganese sulfate (0.05%~0.5%) can improve its quality effectively.