摘要
为了探索马铃薯的适宜播种期,从2015年8月16日至2016年1月31日,开展12期的分期播种试验,观测马铃薯各生育期的气象因子及相应产量,分析各生育期气象因子与产量的相关性。结果表明播种期为10月15日的马铃薯产量最高,其次是10月30日,最差播种期是8月16日;结薯至成熟期的地面温度与产量呈极显著负相关,相关系数为-0.856,该时期是马铃薯产量形成的关键期。柳州马铃薯最佳播种是10月中旬,该生育期中,从播种到结薯期,温度适宜有利于马铃薯的生长发育,结薯到成熟期,温度稍偏低不利于马铃薯的膨大,可通过稻草覆盖或者盖膜方式提高后期温度,提高马铃薯产量。
In order to explore the suitable sowing time for potato, the experiments of 12 sowing dates were performed from August 16, 2015 to January 31, 2016 to observe meteorological factors and corresponding production of potato in each growth period. Then, we further analyzed the correlation between meteorological factors and yield at different growth stages. The results showed that the highest production appeared in the sowing date of October 15, followed by October 30, and the worst sowing time was August 16. There was a significant negative correlation between the surface temperature and the yield of potato during the period from tuberization to maturation, with correlation coefficient of-0.856. This stage was the critical period of potato yield. Therefore, the best sowing period of Liuzhou potato might be mid-October. In this growing period, comfortable temperature was advantageous to the growth of the potato from sowing to tuberization. Although low temperature was slightly against the potato growth during the period from tuberization to mature, the potato production could be boosted by increasing late temperature with straw or thin film covering.
出处
《基因组学与应用生物学》
CAS
CSCD
北大核心
2017年第4期1667-1671,共5页
Genomics and Applied Biology
基金
广西壮族自治区气象局重点项目(桂气科201507)资助
关键词
马铃薯
播种期
气象因子
Potato, Sowing date, Meteorological factors
