Abstract
Tedera is a Mediterranean perennial herbaceous forage legume that remains green during summer and autumn with minimal leaf drop when grown in the medium to low rainfall zones of Western Australia. This unique attribute allows out-of-growing-season grazing that can complement the traditional grazing system based on winter annual species. Tedera is a traditional rangeland forage in the Canary Islands, where it recruits naturally from seed. Now, following its domestication, an agronomy package needs to be developed to allow reliable establishment of commercial plantings. From 2017 to 2020, experiments were conducted at Cunderdin, Dandaragan, Three Springs, Manjimup, and Merredin in WA using the tedera cultivar Lanza®. The experiments evaluated four sowing times, two sowing depths in the field sites, six sowing depths in a glasshouse experiment, three sowing rates, and three row spacings. Plant counts, establishment percentages, and dry matter biomass productions were measured. Based on this experimental experience it is concluded that Lanza® tedera performs best if sown just before or early after the start of the rainy season, at 2 cm of depth, with a 15 kg/ha sowing rate, and at a row spacing of 22 cm.
Highlights
Regions in Western Australia.Tedera is the local name for Bituminaria bituminosa C.H
Tedera has been developed as an herbaceous perennial forage legume for use in Mediterranean-like environments across southern Australia [4,5]
The main distinctive attribute of tedera is its drought tolerance that allows it to remain green during summer and autumn with minimal leaf drop when grown in the medium and medium to low rainfall zones of Western Australia [6]
Summary
2 ofthe autumn/winter rains is likely to allow tedera to develop a deep root system to survive first dry season/s; (2) from a range of sowing depths from 2 cm to 12 cm, a sowing depth of 4 cm to 6 cm will be optimal; (3) the highest sowing rates will produce the most productive and (4) the that: wider row spacing of 66 cm will favor plant survival row spacing.stands; It is hypothesized (1)the in Mediterranean-like environments with medium and result in more productivity times as of early waterasdeficit during autumn. To low rainfall and mild winters, at sowing possible aftersummer the first and autumn/winter rains is likely to allow tedera to develop a deep root system to survive the first dry season/s; 2. From a range sowing depths from 2 cm to 12 cm, a sowing depth of 4 cm to 6 cm will be optimal;
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