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马铃薯种薯在第一季种植时产量很高,而把收获的马铃薯留种再种植时,植株生长势会逐年衰退,块茎变小,产量逐年下降,这就是所说的马铃薯退化。以下主要对马铃薯中性退化现象及原因进行分析。
When the potato seed is planted in the first season, the yield is very high. When the harvested potato is planted and replanted, the growth potential of the plant will decline year by year. The tubers will be smaller and the yield will decrease year by year. This is called potato degeneration. The following main potato neutral degeneration and the reasons for the analysis.