Initial Growth of Peanut Cultivars at Presence of Different Sugarcane Straw Quantities

  •  Micheli Yamauti    
  •  Arthur Martins Barroso    
  •  Paulo Giancotti    
  •  Pedro Alves    


This work was carried out to evaluate the effect of sugarcane straw on plants emergence and some characteristics of initial growth of peanut plants in boxes with soil as substrate. The treatments constituted by straw quantities of: 0, 4, 8, 12, 16 and 20 t ha-1 and the five cultivars tested were IAC 213, IAC 503, IAC 505, IAC 886 and IAC Tatu ST. The experiment was arranged in a completely randomized design, in a factorial arrangement of 6 x 5 with four replications. At 30 days after sowing were evaluated chlorophyll content, height, emergence of plants, number of leaves, total foliar area, foliar area per plant, leaf, stem, aerial part total and per plant dry mass. Data obtained were submitted to F in variance analysis test and means were compared with Tukey at p>0.05. The same data were padronized and analyzed by hierarchical cluster analysis utilizing as the similarity coefficient the simple Euclidian distance and as linkage method the Ward Method. The straw did not affect the cultivars growth studied and the straight cultivar IAC Tatu ST had the major initial growth if compared to the other.

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