Grain yield and yield attributes response of four upland rice (Oryza sativa L.) promising lines to shade stress. Issue 1 (February 2020)

• Record Type: Journal Article
• Authors: Sadimantara, G R; Febrianti, E; Suliartini, N W S; Sutariati, G A K; Yusuf, D N; Muhidin,
• Is Part Of: IOP conference series. Volume 454:Issue 1(2020)
• Publication Date: 2020-02
• Subjects: Earth sciences -- Periodicals; Environmental sciences -- Congresses; Environmental sciences -- Periodicals; 550.5
• DOI: 10.1088/1755-1315/454/1/012188
• Languages: English
• ISSNs: 1755-1307

Abstract

Abstract: The purpose of this research was to investigate a response of four promising lines of upland rice ( Oryza sativa L.) on low-light environments. The study was carried out at the Agronomy Field Laboratory, Faculty of Agriculture, Halu Oleo University Kendari and arranged on split plot design on two factors. The different shade level placed as the main plot and different promising lines as subplot. The observed variables were number of productive tillers, panicle length, the number of unfilled grains and grain yield (t ha −1 ). The results indicate that both the shade levels and upland rice promising lines affected the grain yield and yield attributes. The shade levels tend to decrease grain yield and increase unfilled grain. The GS12-1 lines recorded as a better promising line, especially for the panicle length and grain yield (t. ha −1 ).