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目前生产中种藕的一般方法是用整支藕作藕种,每亩用种量通常为250—300公斤。为了早熟,加大种植密度,每亩用种高达500公斤,因而生产成本很高。如果是远距离调运藕种,更为不便。近年来,一些地区试用藕节、藕头、子藕做种,每亩用种量可降到50公斤左右,但仍要耗费一部分种藕,切下藕节、藕头后的余下部分商品性大大降低,同时用这种方法繁殖,病菌仍可通过地下茎传播。除此外,有些地区采用以莲子播种方法繁殖,进行保护地育苗,提前出苗,延长了生长期,当年可以获得商品藕。但是,由于莲藕是异花授粉植物,有性后代发生分离现象,整齐度差,严重影响产品质量。而且,许多优
The current production of lotus root in the general method is to use lotus root lotus root lotus per acre with the amount of usually 250-300 kg. In order to precocious, increase the planting density, with up to 500 kilograms per acre, so the production cost is very high. If it is long-distance transfer lotus root, more inconvenient. In recent years, in some areas trial lotus root, lotus root, sub-lotus seed, the amount per acre can be reduced to about 50 kg, but still consume some of the lotus root, cut the lotus root section, lotus root after the rest of the commercial Greatly reduced, while breeding in this way, the bacteria can still be transmitted through the underground stems. In addition, in some areas, seedlings are propagated by seed lotting, nursery stocks are protected, seedlings are prematurely grown, and the growth period is prolonged. In that year, commodity lotus root can be obtained. However, because lotus root is a cross-pollination plant, sexual offspring segregation occurs, the uniformity is poor, seriously affecting product quality. Moreover, many excellent