Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (6): 113-118.doi: 10.11924/j.issn.1000-6850.2013-1202

Special Issue: 生物技术 马铃薯

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The Influence of Fertilization on the Potato Flower Bud Differentiation and the Differences of Physiological Indexes in the Process

  

  • Received:2013-04-25 Revised:2013-05-30 Online:2014-02-25 Published:2014-02-25

Abstract: The potato flower bud differentiation process of two fertilizer treatments and relative chlorophyll content of starch, soluble sugar content in leaves were studied by micrography and relative chlorophyll meter SPAD -502plus to research the formation mechanism of the quality of potato tuber yield.Results show that the potato tuber formation is related to the time of flower bud differentiation, the earlier the differentiation starts, the sooner the tuber happens..The process of the Potato flower bud differentiation is outside-in, and divide to the flower primordium differentiation, differentiation of sepal, petal, stamen differentiation stage and pistil differentiation stage. The changing trend of potato relative chlorophyll content (SPAD ) is similar to starch and soluble sugar consistent in leaves and reaches up to a maximum in flower bud differentiation period.Through the experiment,we get that potato tuber yield and quality formation are significantly related to flower bud differentiation time ,and nutrient levels, chlorophyll content during the process .