2013
DOI: 10.1590/s0100-204x2013001200002
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Popping expansion and yield responses of popcorn cultivars under different row spacings and plant populations

Abstract: -The objective of this work was to evaluate the agronomic traits and the popping expansion index of three Brazilian popcorn cultivars under different row spacings and plant populations. The trials were performed during two crop seasons, under field conditions. The experimental design used was a randomized complete block, in a split-split plot, with 27 treatments and four replicates. Treatments were represented in a triple factorial arrangement: three row spacings (0.40, 0.60, and 0.80 m), three plant populatio… Show more

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Cited by 5 publications
(4 citation statements)
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“…Even with modern corn hybrids, been more efficient (CLOVER & MALLARINO, 2012) and by that they are able to tolerate high population competition, at this present study, grain yield was compromised just as in ROSSATO JUNIOR et al (2013). The higher plant population generated a smaller grain yield, probably due to the increase of competition with the highest of population.…”
Section: Resultscontrasting
confidence: 46%
See 1 more Smart Citation
“…Even with modern corn hybrids, been more efficient (CLOVER & MALLARINO, 2012) and by that they are able to tolerate high population competition, at this present study, grain yield was compromised just as in ROSSATO JUNIOR et al (2013). The higher plant population generated a smaller grain yield, probably due to the increase of competition with the highest of population.…”
Section: Resultscontrasting
confidence: 46%
“…According to SANGOI et al (2006) and FLESCH & VIEIRA (2004) modern corn hybrids are more resistant to high population stress, by being more efficient in absorbing water and nutrients (CLOVER & MALLARINO, 2012). Contrasting the findings of ROSSATO JUNIOR et al (2013) where the increase of corn population promoted a reduction on number of grains by ear, smaller prolificacy and grains mass loss.…”
Section: Introductionmentioning
confidence: 97%
“…Esse resultado corrobora com o observado por Vittorazzi et al (2017), que sugeriram que isso se deve ao aumento da competição intraespecífica, pois as plantas quando expostas a estas condições geralmente produzem menores espigas, acarretando em grãos menores e consequentemente menor peso de grãos. Rossato Júnior et al (2013) também observaram menor peso de mil sementes na maior densidade avaliada (80.000 plantas ha -1 ) para os híbridos de milho pipoca Zélia, IAC-TC 01 e IAC-112. Não houve interação significativa entre híbrido e população para a produtividade final de grãos, e sim, apenas diferença entre os híbridos avaliados (Tabela 5) sendo o H 8203 o mais produtivo.…”
Section: Resultsunclassified
“…Caracterização física da camada superficial do solo da área experimental na profundidade de 0-20cm. Rossato Júnior et al (2013) avaliando ICE de três cultivares de milho pipoca sob diferentes espaçamentos, relatam que as cultivares não foram afetadas por nenhum arranjo espacial testado, fato também observado nessa pesquisa.…”
Section: Resultado E Discussãounclassified