+ Site Statistics
References:
52,572,879
Abstracts:
28,705,754
PMIDs:
27,750,366
DOIs:
25,464,004
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effect of a short and severe intermittent drought on transpiration, seed yield, yield components, and harvest index in four landraces of bambara groundnut



Effect of a short and severe intermittent drought on transpiration, seed yield, yield components, and harvest index in four landraces of bambara groundnut



International Journal of Plant Production 5(1): 25-36



Drought is a major constraint to crop production worldwide and landraces are one of the important genetic resources to crop improvement in the dry areas. The objective of this study was to investigate transpiration and yield responses of bambara groundnut (Vigna subterranea L. Verdc.) landraces exposed to a intermittent drought spell at an early reproductive stage. The four landraces (S19-3, Uniswa Red, LunT, and Ramayana collected from Namibia, Swaziland, Sierre Leone, and Indonesia, respectively) were grown in pots in a climate-controlled greenhouse and were either well-watered (WW) daily to 90% of pot holding capacity until seed maturity or drought-stressed (DS) in the period from 76 to 85 days after sowing (flowering and early podding stage). During drought, although the total water use differed among the four landraces, transpiration rate and stomatal conductance (g(s)) responded similarly to soil drying. The high soil water thresholds for the reduction of transpiration rate and g(s) of bambara groundnuts indicate their great sensitivity in the stomatal control over plant water loss during soil drying. Even though the shoot dry weight at maturity was hardly affected by DS, seed yield, seed number, and harvest index were all significantly decreased in the DS plants. Among landraces, LunT and Ramayana were more susceptible to DS than S19-3 and Uniswa Red in terms of reduction of seed number and seed yield. The different responses of the landraces to DS may reflect their adaptation to their local climate at the site of collection being that landraces collected from wet regions were more vulnerable to DS than those collected from dry areas.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 066238133

Download citation: RISBibTeXText


Related references

Variability for yield and seed yield components in Bambara groundnut (Voandzeia subterranea Thoars). Tropical Grain Legume Bulletin (31): 45-47, 1985

Path coefficient analysis among components of yield in Bambara groundnut (Vigna subterranea L. Verdc) landraces under screen house conditions. Journal of Agronomy 6(2): 317-323, 2007

Study of the Effect of Drought Stress on Yield, Yield Components and Harvest Index of Sunflower Hybrid Iroflor at Different Levels of Nitrogen and Plant Population. Notulae Botanicae Horti Agrobotanici Cluj-Napoca 37(2): 85-94, 2009

Effect of Sowing Density and Seedbed Type on Yield and Yield Components IN BAMBARA GROUNDNUT (VIGNA SUBTERRANEA) IN WOODLAND SAVANNAS OF COTE D'IVOIRE. Experimental Agriculture 46(1): 99-110, 2010

Influence of drought stress on seed yield, biological yield and harvest index of different cultivars of barley. Research on Crops 13(2): 472-474, 2012

Correlation and path-coefficient analysis of components of seed yield in bambara groundnut (Vigna subterranea). Euphytica 91(1): 103-107, 1996

Correlation and path-coefficient analysis of components of seed yield in Bambara groundnut Verdc germplasm in Botswana. Tropical Agriculture 80(3): 175-181, 2003

Effects of pre-anthesis drought, nitrogen fertilizer rate, and variety on grain yield, yield components, and harvest index of tropical maize. Agricultural Water Management 81(1/2): 41-58, 2006

Improving adaptation to drought stress in white pea bean (Phaseolus vulgaris L.): Genotypic effects on grain yield, yield components and pod harvest index. Plant Breeding 136(4): 548-561, 2017

Variation in nitrogen fixation and yield in landraces of bambara groundnut (Vigna subterranea L.). Field Crops Research 48(1): 57-64, 1996

Influence of sowing date on the growth and yield of bambara groundnut landraces in Tanzania. Experimental agriculture 36(1): 1-13, 2000

Improving adaptation to drought stress in small red common bean: phenotypic differences and predicted genotypic effects on grain yield, yield components and harvest index. Euphytica 203(3): 477-489, 2015

Selection criteria for grain yield and stability in bambara groundnut (Vigna subterranean (L) Verdc) landraces. Acta Agriculturae Scandinavica Section B-Soil and Plant Science 65(5): 433-447, 2015

The effect of seed size on the development and yield ofVoandzeia subterranea(L.)Thouars. (Bambara groundnut). Folia Geobotanica 26(3): 357-362, 1991

The effect of seed size on the development and yield of Voandzeia subterranea (L.) Thouars. (Bambara groundnut). Folia Geobotanica et Phytotaxonomica 26(3): 357-362, 1991