Yu niati Pieter Munarso
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Keragaan Hasil Beberapa Va rietas Padi Hibrida pada Beberapa Te knik Pengairan Munarso, Yu niati Pieter
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol 39, No 3 (2011): Jurnal Agronomi Indonesia
Publisher : Bogor Agricultural University

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Abstract

The experiments were conducted  at farmer’s rice field in Sidowayah (the district of Ngawi) and Karangrejo (Magetan), from August to November 2009. The objective of this research was to evaluate growth and yield performance of several hybrids of rice at different irrigation techniques. The experiments were arranged in a split plot design with 3 replications. The main plots were three water application methods, i.e. (a) continuously flooded at 3 cm above soil from 10 DAT (days after transplanting) to 7 DPH (days preceeding harvest); (b) alternating wet-dry method with 10 cm depth (threshold level); and (c) alternating wet dry method with 15 cm depth. The sub plots were five hybrid rice varieties. Results showed that the alternating wet-dry irrigation methods, with both of 10 cm and 15 cm depth as water threshold levels did not decrease the plant height, number of tiller per hill, as well as grain yield and overall yield components. Therefore, development of hybrid rice could be executed either at the continuous irrigation system area or at the area with intermittent irrigation system. Hybrid rice of Sembada and Sl-8 showed to have the highest yield. The high yield was supported by the yield components, i.e. total filled grain per panicle and 1,000 grain weight.   Keywords: growth, hybrid rice, irrigation, variety, yield