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脱毒种薯春种夏收薯块利用药剂处理打破休眠以氯乙醇效果最好,出苗率为100%,硫脲和赤霉素处理出苗率均不足10%;从产量看,氯乙醇处理的为最高933kg/667m2,赤霉素、硫脲处理的比较低,分别为86.8kg/667m2和248.13kg/667m2。秋季栽培产量低的主要原因是适合马铃薯生长的天数较短,氯乙醇处理为60天,赤霉素、硫脲处理因出苗迟,只有38天和40天,同时生育期中大于15℃的有效积温不够,导致植株生长量小,光合产物积累少,地下部薯块膨大慢,产量低。因此,早播种,早出苗,在7月上旬播种成为秋繁种薯成功的关键,必须高度重视。2007年用2006年秋繁种薯进行了栽培试验,结果表明:秋繁种薯春种夏收与对照相比,生育期相近,薯块单株产量及单位面积产量均比对照高,每667m2比对照增产16.39%。说明用春种秋繁种薯解决宁夏引黄灌区春种菜用早熟马铃薯种薯供应是可行的。
Virus-free potato spring summer summer potato tuber treatment to break dormancy with the best effect of chloroethanol, the emergence rate was 100%, thiourea and gibberellic acid treatment of seedling rate of less than 10%; from the yield, chloroethanol treatment was The highest 933kg / 667m2, gibberellin, thiourea treatment relatively low, respectively, 86.8kg / 667m2 and 248.13kg / 667m2. The main reason for the low yield in autumn cultivation is shorter days for potato growth, 60 days for chloroethanol treatment, 30 days for gibberellin and thiourea treatment due to emergence, only 38 days and 40 days, and the effective accumulated temperature greater than 15 ℃ during growth period Insufficient, resulting in a small amount of plant growth, accumulation of photosynthetic products, underground tubers swelling slow, low yield. Therefore, early sowing, early emergence, sowing in early July autumn seedlings become the key to success, we must attach great importance. In 2007, the experiment was carried out in the autumn of 2006. The results showed that compared with the control, the yield and yield per plant of tuber was higher than that of the control Increase 16.39%. Explain the use of spring seedlings of autumn seedlings to solve the Yellow River Irrigation District in spring planting vegetables with early maturing potato seed supply is feasible.