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在当前国内玉米种子供大于求市场情况下,制种产量以及其商品性成为了市场竞争的关键。近年来,我们通过大量的田间调查与试验,发现制种玉米拔节初期揭膜处理比全生育期覆膜的产量高、品质好。揭膜田比全程覆膜的玉米叶片较宽、茎杆较粗、不易早衰、籽粒大且色泽好。为了提高我市种子产业在国内市场的竞争力,很有必要对此进行分析研究,并推广应用此项技术。
In the current domestic supply of corn seeds oversupply market, seed production and its commercial nature has become the key to market competition. In recent years, through a large number of field investigations and experiments, we found that the yield of the plastic film uncovering during the early stage of jointing is higher than that during the whole growing period, and the quality is good. Uncovering film than the entire coverage of corn leaves wider, thick stems, not easy to premature aging, large seeds and good color. In order to improve the competitiveness of the city’s seed industry in the domestic market, it is necessary to conduct an analysis and research and promote the use of this technology.