Produção Nacional
Produtividade e qualidade do milho doce em diferentes populações de plantas
2013; UNIVERSIDADE ESTADUAL DE LONDRINA; Volume: 34; Issue: 3 Linguagem: Inglês
10.5433/1679-0359.2013v34n3p995-1010
ISSN1679-0359
AutoresRenan Soares de Souza, Pedro Soares Vidigal Filho, Carlos Alberto Scapim, Odair José Marques, Dyane Coelho Queiroz, Ricardo Shigueru Okumura, Jefferson Vieira José, Deivid Lincoln Reche, Vinícius Bovo Cortinove,
Tópico(s)Growth and nutrition in plants
ResumoThe objective of this study was to evaluate the plant population density effect upon yield components and the chemical composition of grains in two sweet corn hybrids in “Winter-Spring” cultivation. The experimental design used was the complete randomized blocks with four replications. The treatments were based on the combination between two sweet corn hybrids (Tropical Plus e RB-6324) and five plant populations (40,000, 55.000, 70,000, 85,000 and 100,000 plants ha-1), in a factorial scheme 2 x 5, evaluated in two “winter-spring” growing seasons (2009 and 2010). The increment in the population of 40,000 to 100,000 plants ha-1 resulted in higher husked commercial corn ear productivity in both hybrids, Tropical Plus and RB-6324. The increase of plant population reduced the length and diameter of corn ears in Tropical Plus and RB-6324. The mass of the corn ears from Tropical Plus also reduced; however, it did not affect the commercial standard and industrial use. In larger plant populations the hybrid RB-6324 produced corn ears with grains that were sweeter and with lower starch content. The hybrid Tropical Plus presented higher mass, length, productivity, sugar content and lower diameter of corn ears when compared to RB-6324.
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