Plant density in the hydroponical production of potato minitubers

被引：3

作者：

Dellai, Jacso ^{[2
]}

Bisognin, Dilson Antonio ^{[1
]}

Andriolo, Jeronimo Luiz ^{[1
]}

Streck, Nereu Augusto ^{[1
]}

Muller, Douglas Renato ^{[2
]}

Bandinelli, Mauricio Guerra ^{[2
]}

机构：

[1] Univ Fed Santa Maria, CCR, Dept Fitotecnia, BR-97105900 Santa Maria, RS, Brazil

[2] Univ Fed Santa Maria, Programa Posgrad Agron, BR-97105900 Santa Maria, RS, Brazil

来源：

CIENCIA RURAL | 2008年 / 38卷 / 06期

关键词：

Solanum tuberosum L; growth; yield; plant propagation;

D O I：

10.1590/S0103-84782008000600007

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The objective of this research was to determine the effect of plant density on Plant growth and potato minituber yield. The C experiment was carried out in a closed hydroponic system with sand as substrate in a greenhouse. Minitubers (diameter between 5 and 10mm) of the cultivar 'Macaca' were planted on September 3(rd), 2004 in holes made on polyethylene film surface. The treatments were the densities of 25, 44, 100 and 400hills m(-2). A completely randomized experimental design was used, with three replications. Water and nutrients were supplied daily with a standard nutrient solution. Tuber yield and dry matter production were determined at 75 days after planting. Dry mass of plants increased until 100hills m(-2) Increasing plant density increased tuber number and decreased mean dry mass of tubers. Plant density of 100hills m(-2) may be used to maximize tuber number in the hydroponical production of potato minitubers.

引用

页码：1534 / 1539

页数：6

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