覆膜对酒竹笋营养元素与成分的影响

The aim of this paper is to provide the data that the transplant advantage in southwest aridity area of China so that shoot's trace element and nutritional components of wine bamboo,Oxytenanthera braunii,through the winter especially under plastic film mulching condition were measured.The results showed that plastic film mulching could precede in time of shoot germination and enhance the shoot quality such as improving absorbability of trace element,increasing content of protein,sugar,coarse fiber and majority of amino acid.And also,it could accelerate the development of shoot responding to the difference of base diameter.Wine bamboo's trace element was rich,and the content of crude fat and sugar were higher compared with the shoot of Phyllostachys edulis,P.edulis cv.pachyloen and Dendrocalamus brandisii with the closer relationship that the excreting sap contained about 5% alcohol through new cutting stem.Wine bamboo germinated shoots in whole year at Mojiang Base if mother plant could absorb enough nutrition resulting in great consumption of nutriment and physiological turbulence like decreasing amino acid content under an inaptitude condition.So the amino acid content was low which were 1.3%,1.04% under treatment of plastic film mulching and the control respectively,although all kinds of necessary amino acid were included.Shoot of wine bamboo had a special taste for its lower tannin content and higher aspartic acid and glutamic acid contents.Synthetically,short time of plastic film mulching showed to be a method to provide the necessary soil water and mean temperature and do good for development and soil quality though winter.