4.7 Article

Building Resilient Crop Production Systems for Drought-Prone Areas-A Case for Bambara Groundnut (Vigna subterranea L. Verdc) and Groundnut (Arachis hypogaea L.)

期刊

AGRONOMY-BASEL
卷 13, 期 2, 页码 -

出版社

MDPI
DOI: 10.3390/agronomy13020383

关键词

water deficit; bambara groundnut; groundnut; gaseous exchange; proline; flowering stage; food security

向作者/读者索取更多资源

English Summary: This study evaluated the responses of bambara groundnut and groundnut to soil water deficit stress. The results showed that water deficit stress increased proline content and decreased stomatal conductance, transpiration rate, and photosynthetic rate. The genotypes MNANJE and S19-3 exhibited the smallest decrease in most of the traits, indicating their drought resistance. The observed variations among landraces could be utilized to breed resilient varieties for cultivation in drought-prone areas, ultimately improving food security.
Drought is a major crop production constraint worldwide. Some legume crops are known for their ability to resist water deficit stress. This study evaluated the responses of bambara groundnut (Vigna subterranea (L.) Verdc) and groundnut (Arachis hypogaea (L.) to soil water deficit stress. The experiment was set as a split-plot randomized complete block design. Three bambara groundnut landraces: viz DodR, NALBAM 4 and S19-3, and one groundnut variety, MNANJE, were assigned to subplots with three water regimes assigned to main plots (regime one: irrigated throughout the growing period, regime two: water deficit stress was imposed at the start of flowering to the end of first flush flowering, regime three: water was withheld during the pod development). Water deficit stress increased proline content by 123% in stressed plots. The highest (174%) and lowest (89%) proline increases were evident in the genotypes MNANJE and NALBAM 4, respectively. Water deficit decreased stomatal conductance, transpiration rate and photosynthetic rate, with MNANJE and S19-3 showing the smallest percentage decrease in most of the traits. This suggests that the two genotypes are drought resistant. The variations observed among landraces could be exploited to breed resilient varieties for cultivation in drought-prone areas, ultimately improving food security.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据