Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy)
Vol. 27 No. 3 (1999): Buletin Agronomi

PENGARUH JARAK TANAM DAN PACLOBUTRAZOL TERHADAP PRODUKSI DAN VIABILITAS BENIH BUNGA MATAHARI (Helianthus annuus L.)

Ramlafatma, , (Unknown)
Widajati, Eny (Unknown)
Budiarti, Tati (Unknown)



Article Info

Publish Date
06 Jul 2010

Abstract

The research was conducted at Seed Science and Technology Field Experimental and Laboratory, Faculty of Agriculture, Bogor Agricultural University since January until July 1998. Randomized Block Design was used in this experiment which consist of two factors and three I replications. The first factors were row spacing 60 cm x 25 cm (J1) and 60 cm x 45 cm (J2) and the second factors were application of 100 ml paclobutrazol/plant with concentration 0 ppm (P1), 125 ppm (P2), 250 ppm (P3) and 500 ppm (P4). The plant height was increased at narrow spacing especially at 0 ppm paclobutrazol. Paclobutrazol application reduced plant height, increased stem diameter and it's caused minimal lodging at generatif period. The highest seed production per plot was resulted at 60 cm x 25 cm with 250 ppm and 500 ppm of paclobutrazol (146 % and 155 % as compared with control treatment), and the highest seed production per plant showed at 60 cm x 45 cm and 60 cm x 25 cm with 500 ppm of paclobutrazol (197 % and 198 % compared with control treatment). Paclobutrazol125 ppm, 250 ppm, and 500 ppm increased flower diameter, number seed per flower, 1000 seed weight, germination capacity, and seed vigour. The optimum combination of treatment was showed at 60 cm x 25 cm and 250 ppm of paclobutrazol.

Copyrights © 1999






Journal Info

Abbrev

jurnalagronomi

Publisher

Subject

Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance

Description

Aims and Scope Aims Indonesian of Journal Agronomy (Jurnal Agronomi Indonesia), the official journal of the Indonesian Society for Agronomy, publishes primary research paper, review article, policy analysis and research notes and preliminary results in all areas of agronomy. Manuscripts could be ...