Tingkat produksi ratun berdasarkan tinggi pemotongan batang padi sawah saat panen
2012
Santosa Edi
The objectives of the study was to determine the effect of cutting height of main crop on the yield of rice ratoon, and to select genotypes with high productivity on tidal swamp land. The method used was a factorial randomized block design with three replications. Thefirstfactor was cutting height of 10 cm, 20 cm and 30 cmfrom soil surface. The secondfactor was five genotypes selectedfrom previous study. namely Cimelati, Hipa-S, Rokan, IPB106-7-47-DJ-1 and IPB106-F-8-1. The results showed that combination of genotypes and cutting height affected ratoon yield. Cutting height of 20 cm increased the number of filled grain in almost all genotypes, increased growth rate of ratoon to 1.5 cm/day and increased growth uniformity of ratoon of Cimelati, Hipa-5 and Rokan genotypes, with production 3.0 ton ha I. 2.8 ton/ha and 2.2 ton/ha, equal with 57.2 percent. 60.1 percent.52.7 percent. of the main crop respectively. Cutting height of 10 cm above soil surface showed the best results for IPB106-7-47-DJ-1 and IPB106-F-8-1 genotypes. with the highest yield of ratoon 2.1 ton/ha and 1.5 ton/ha, equal with 45.8 percent and 35.4 percent of the main crop respectively.
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