Response of maize single-cross hybrids to reduced row spacing

被引：25

作者：

Argenta, G ^{[1
]}

da Silva, PRF ^{[1
]}

Bortolini, CG ^{[1
]}

Forsthofer, EL ^{[1
]}

Manjabosco, EA ^{[1
]}

Neto, VB ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Fac Agron, Dept Plantas Lavoura, BR-91540000 Porto Alegre, RS, Brazil

来源：

PESQUISA AGROPECUARIA BRASILEIRA | 2001年 / 36卷 / 01期

关键词：

Zea mays; grain; yields; agronomic characters; yield components; plant population;

D O I：

10.1590/S0100-204X2001000100009

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

The objective of this work was to determine the effects of using narrow row spacing on grain yield, grain components and on other agronomic traits of maize single-cross hybrids. Two experiments were conducted in the state of Rio Grande do Sul, Brazil. In the 1997/98 growing season, treatments were composed by two single-cross hybrids (Cargill 901 and Braskalb XL 212) and four row spacings (40, 60, 80 and 100 cm). In the 1998/99 growing season, two single-cross hybrids were tested at two plant densities (50,000 and 65,000 pl./ha) and four row spacings (40, 60, 80 and 100 cm). Maize grain yield was influenced by hybrid and plant density. The reduction in row spacing promoted a high grain yield specially for hybrids with a low plant height sown at the density of 50,000 pl./ha.

引用

页码：71 / 78

页数：8

共 17 条

[1] A GROWTH ANALYSIS COMPARISON OF CORN GROWN IN CONVENTIONAL AND EQUIDISTANT PLANT SPACING [J].