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Screening for waterlogging tolerance in strawberry clover and other perennial legumes

Citation

Stevenson, K and Zhou, M and Smith, R, Screening for waterlogging tolerance in strawberry clover and other perennial legumes, 18th Australian Agronomy Conference 2017, 24-28 September 2017, Ballarat, Victoria (2017) [Refereed Conference Paper]

Copyright Statement

Copyright 2016 Australian Society of Agronomy

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Abstract

Soil waterlogging and salinity have negative impacts on the growth and productivity of perennial pasture systems. Commonly used perennial legume species such as white clover (Trifolium repens) and lucerne (Medicago sativa) are relatively salt and waterlogging sensitive, thus not suitable for areas prone to these conditions. Alternative species such as strawberry clover (Trifolium fragiferum) which are known to have high tolerance to waterlogging and salinity can be used to maintain productivity and persistence of legumes within affected pastures. Palestine is the major commercial strawberry clover cultivar currently used in Tasmania. Some Tasmanian breeding lines showed great potential of being commercialised. The aim of this experiment was to compare the waterlogging tolerance of these breeding lines with Palestine as well as Talish clover (Trifolium tumens), white clover (Trifolium repens), red clover (Trifolium pratense), Caucasian clover (Trifolium ambiguum) and a sensitive barley (Hordeum vulgare) variety. The experiment was conducted outside and the duration of the experiment from germination to harvest was 75 days with the waterlogging treatment imposed at day 54. The level of tolerance was assessed by observing the chlorophyll content, chlorophyll fluorescence and wet/dry weights of plants weekly. Three of the Tasmanian Institute of Agricultures advanced selections were observed to have the potential to have a higher tolerance to waterlogging than cv. Palestine.

Item Details

Item Type:Refereed Conference Paper
Keywords:strawberry clover, waterlogging
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Crop and Pasture Improvement (Selection and Breeding)
Objective Division:Animal Production and Animal Primary Products
Objective Group:Pasture, Browse and Fodder Crops
Objective Field:Sown Pastures (excl. Lucerne)
Author:Stevenson, K (Ms Kristy Stevenson)
Author:Zhou, M (Associate Professor Meixue Zhou)
Author:Smith, R (Dr Rowan Smith)
ID Code:118225
Year Published:2017
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2017-07-06
Last Modified:2017-11-09
Downloads:0

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