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中国农学通报

中国农学通报 ›› 2016, Vol. 32 ›› Issue (9): 100-105.doi: 10.11924/j.issn.1000-6850.casb15090079

所属专题： 马铃薯

• 农学 农业基础科学 • 上一篇    下一篇

基于雾培马铃薯块茎建成相关性状的观察

张光海,郭华春,张贵合   

  1. 云南农业大学薯类作物研究所,云南农业大学薯类作物研究所,云南农业大学薯类作物研究所
  • 收稿日期:2015-09-20 修回日期:2015-10-21 接受日期:2015-11-25 出版日期:2016-03-29 发布日期:2016-03-29
  • 通讯作者: 郭华春
  • 基金资助:
    国家马铃薯产业体系(CARS-10)；云南省重大种业专项“多抗广适马铃薯新品种选育与示范”(2013ZA007)。

Traits Relevant to Tuberization of Potato in Aeroponic

张光海,郭华春 and 张贵合   

  • Received:2015-09-20 Revised:2015-10-21 Accepted:2015-11-25 Online:2016-03-29 Published:2016-03-29

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摘要： 为探索马铃薯块茎建成相关性状的动态发育规律及其相关性，对雾培条件下二倍体马铃薯C×E群体的株高、匍匐茎长、根长、一级匍匐茎数、微型薯数的生长动态及其与单株产量的相关性进行研究。结果表明：C×E群体上述5 个农艺性状均存在超亲分离；移栽后40 天内是根系生长发育的主要时期；移栽后50~70 天是株高增长的主要时期；移栽后30~50 天是匍匐茎发生的高峰期，一级匍匐茎数在移栽后60 天达到最大值；匍匐茎的伸长主要是在移栽后40~50 天，同时此时块茎开始膨大。相关性分析结果显示：微型薯数与匍匐茎长呈显著或极显著正相关，与一级匍匐茎数呈极显著正相关；单株产量与一级匍匐茎数呈极显著正相关。因此，匍匐茎长、一级匍匐茎数是筛选雾培优良基因型植株的2 个重要因素。

关键词: 灰霉病, 灰霉病, 灰葡萄孢菌, 嘧霉胺, 抗药性

Abstract: The paper aims to study the dynamical development regularity and correlation of tuberization traits of potato. The authors observed the development dynamic and correlation with yield per plant(YP) of the plant height(PH), stolon length(SL), root length(RL), primary stolons(PS) and mini-tubers(MT) of C×E population in aeroponic. The results showed that there was obvious segregation beyond the two parents for five agronomic traits among F1. It was the major developmental stage of root during the 40 d after the transplantation. Plant height of the potato grew rapidly from 50 d to 70 d after the transplantation. Primary stolons emerged rapidly from 30 d to 50 d after the transplantation and reached its peak at 60 d. Stolons length mainly grew from 40 d to 50 d after the transplantation and the mini-tuber also began to swell. Correlation analysis showed that MT had significantly or highly and significantly positive correlation with SL, and MT had highly and significantly positive correlation with PS. YP had highly and significantly positive correlation with PS. So, SL and PS are two important factors for screening the fine individual genotype of potato for aeroponic.