The effect of sowing date and late season drought on growth and development of bambara groundnut ( Vigna subterranea (L.) Verdc) landraces under field conditions in Botswana
Article Sidebar
-
Bambara groundnut, drought, heat, legume, yield.
Abstract
A field experiment was conducted to investigate the effect of sowing date and late season drought on the growth and development of bambara groundnut (Vigna subterranea (L.) Verdc). The experiment was conducted at the Botswana College of Agriculture, Gaborone, Botswana. Two landraces were grown under three sowing dates and two water regimes; rain fed and irrigation. The two landraces were Dip C (from hot, dry environment/ Botswana) and Uniswa Red (from cool, wet environment/ Swaziland). For the rainfed treatment, irrigation was terminated approximately at pod filling (63 DAS). There was a reduction in development, growth and yield. The effect of sowing date on leaf number was significant. The four treatments mean of leaf number of leaves declined from 62 per plant in the first sowing date (D1) to 52 leaves per plant in the second sowing date (D2) and 46 leaves per plant in the third sowing date (D3). The effect of sowing date on pod number was significant (P< 0.05) with pod number reaching 20 pods per plant in D1and only 2 pods per plant in D3.The landraces varied in their response to temperature and drought stress with respect to growth and development. The landraces used different mechanisms to resist drought and temperature stress, that include reduction in leaf number and dry matter and avoidance through faster growth rate.
Full text article
Authors
This work is licensed under a Creative Commons Attribution 4.0 International License.
In a brief statement, the rights relate to the publication and distribution of research published in the journal of the University of Sebha where authors who have published their articles in the journal of the university of Sebha should how they can use or distribute their articles. They reserve all their rights to the published works, such as (but not limited to) the following rights:
- Copyright and other property rights related to the article, such as patent rights.
- Research published in the journal of the University of Sebha and used in its future works, including lectures and books, the right to reproduce articles for their own purposes, and the right to self-archive their articles.
- The right to enter a separate article, or for a non-exclusive distribution of their article with an acknowledgment of its initial publication in the journal of Sebha University.
Privacy Statement The names and e-mail addresses entered on the Sabha University Journal site will be used for the aforementioned purposes only and for which they were used.
