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我社地处山区,马铃薯是主要春粮作物,在全年粮食生产中占有一定的地位。而在马铃薯生产中出现的“早生块茎”,则是造成缺苗,影响增产的因素之一。经调查,凡长有“早生块茎”的种薯,85%以上不能出苗。“早生块茎”是马铃薯在贮藏期间和播种以后出苗之前在种薯上形成的一种新生块茎(图1)。在产生“早生块茎”以后,种薯的养料转运到新生的块茎上,使新生块茎大量产生,一般一个种薯可长出“早生块茎” 5—7个,多的可达20余个。由于“早生块茎”的大量产生,消耗了大量的养分,
My company is located in the mountains, the potato is the main spring crops, occupy a certain position in the food production throughout the year. The emergence of “early tubers” in potato production is one of the factors that cause the lack of seedlings and affect the yield increase. After investigation, where there are long “early tubers” seed, 85% can not be sprouted. “Early-stage tubers” are a new tuber formed on seed potatoes during storage and before emergence after sowing (Figure 1). After the production of “early-stage tubers”, the nutrients of the seed tubers are transported to the tubers of the newborn, so that new tubers are produced in large quantities. Generally, one tuber can grow 5-7 “early-stage tubers” and more than 20 more. Due to the mass production of “early tubers”, a large amount of nutrients are consumed,