KAJIAN MACAM PENGAIRAN DAN VARIETAS LOKAL PADA PERTUMBUHAN DAN HASIL PADI (Oryza sativa L.) METODE SRI (System of Rice Intensification)

Abstract

The purpose of this study was to know the effect of intermittent irrigation to the growth and yield of rice, the suitability of various local varieties in rice cultivation, and  the interaction of irrigation system and local varieties to the growth and yield of rice.

This research was conducted by the method of 2 x 4 factorial experiment arranged in a Completely Randomized Design (CRD) with eight treatment combinations with three replications. The first factor was irrigation system i.e.  convensional methods and intermittent irrigation systems. The second factor was local varieties i.e. Mentik Wangi, Mentik Susu, Rojolele and Pandan Wangi. The number of plants per experimental unit consists of four plants, three samples of plants and the plant's backup. The results of this research showed that the convensional irrigation systems and intermittent irrigation was not significantly to the growth and yield of rice. The varieties of Pandan Wangi was not significantly to the growth and yield of Mentik Wangi and Mentik Susu, based on weight of 1000 grain, percentage of unfilled grain, number of grains and grain dry weight. Rojolele varietiy on plant height were significantly higher than other varieties, while the panicle length and the number of tillers varieties of pandanwangi was significantly higher than Mentik wangi, Mentiksusu and rojolele varieties. There was no interactions between irrigation system and local varieties of rice, except the number of productive tillers. The combination of convensional irrigation  and Mentik Susu variety produce the number of productive tillers more than other treatment combinations.