Developmental features and yields of three promising upland rice varieties in Zimbabwe

  • Yeqing Ying
  • Mukoyi Francis
  • Muzira Audrey
  • Lanhai Li
  • Liu Guifu

Abstract

Three upland rice varieties: NERICA 1, 3 and 7 that were proved to be promising by previous trails in Zimbabwe, were selected as experimental materials to evaluate their developmental features and yields in irrigated conditions. The results indicate that plant height increased sharply first, and then slowly until the highest values that kept invariant. Tiller number per hill showed S-shaped curves which increased and reached relatively stable values first, then decreased slightly and finally increased again to produce the second time tiller. The leaf number per plant was apparently went up and down, which ascended to the peak values and then started to descend. NERICA 1 had many features which differed from NERICA 3 and NERICA 7, such as early maturing, short plant height, multiple tiller and multiple leave. It had the highest number of panicles and grains among the three varieties though it had nearly the same grain weight with NERICA 3 and NERICA 7. These results will be helpful to release these varieties in Zimbabwe.

Keywords: Developmental feature, upland rice variety, yield, yield components, Zimbabwe

African Journal of Biotechnology Vol. 12(21), pp. 3208-3213

Author Biographies

Yeqing Ying
Zhejiang Agriculture and Forestry University, Lin’an 311300, P. R. China
Mukoyi Francis
Department of Research and Specialist Services, Ministry of Agriculture, Harare, Zimbabwe
Muzira Audrey
Department of Research and Specialist Services, Ministry of Agriculture, Harare, Zimbabwe
Lanhai Li
Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, P. R. China
Liu Guifu
Guangdong Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, 510642, P.R. China
Published
2016-03-10
Section
Articles

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eISSN: 1684-5315