Combining ability of white grain popcorn populations

Crop breeding and applied biotechnology (Impact Factor: 0.56). 01/2006; 6:136-143.
Source: DOAJ


The objectives of this study were to indicate the best improvement strategy and select parents to begin animprovement program of white grain popcorn based on the combining ability and heterosis of eight populations selected inexperiments in the northwestern region of Paraná. The traits plant and ear height, grain yield and popping expansion wereevaluated. The base populations, the F1 and five controls were evaluated in Maringá, state of Paraná, over the course of twoyears. Heterosis for popping expansion was very low and the best improvement strategy is to raise the values of poppingexpansion up to commercial levels through intrapopulation improvement of the populations BRS Angela and SC 002. Intenseselection must be applied to reduce plant and ear height; interpopulation selection must not be initiated at this moment.

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    • "Despite the important growth in the consumption of this product, diverse studies of the Ministry of Agriculture have determined that production is still limited with regards to the potential market. Close to 61 000 tons are imported from Argentina and the United States each year (Scapim et al., 2006). It is estimated that Brazilian production is around 20 000 t (Carpentieri-Pípolo et al., 2002), but the national product shows inferior quality compared to the imported product, fact which interferes with the development of trade and productive interest. "
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