Evaluation and breeding of tedera for Mediterranean climates in southern Australia

Daniel Real, C.M. Oldham, Matthew Nelson, Janine Croser, Marie-Claire Castello, A. Verbyla, A. Pradhan, A.J. Van Burgel, P. Méndez, E. Corréal, Natasha Teakle, Clinton Revell, Mike Ewing

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

© 2014 CSIRO. Tedera (Bituminaria bituminosa C.H. Stirton var. albomarginata and var. crassiuscula) has been identified as one of the most productive and drought-tolerant species of herbaceous perennial legumes based on 6 years of field evaluation in Western Australia in areas with Mediterranean climate and annual rainfall ranging from 200 to 600mm. Importantly, tedera demonstrated broad adaptation to diverse soils, and some accessions have shown moderate levels of tolerance to waterlogging and salinity. Tedera exhibits minimal leaf shedding during summer and autumn. Economic modelling strongly suggests that giving livestock access to green tedera in summer and autumn will dramatically increase farm profit by reducing supplementary feeding. The breeding program (2006-12) evaluated the available genetic diversity of tedera for its field performance in seven nurseries with 6498 spaced plants in total covering a wide variation in rainfall, soils and seasons. Best overall plants were selected using a multivariate selection index generated with best linear unbiased predictors (BLUPs) of dry matter cuts and leaf retention traits. The breeding program also evaluated tedera for grazing tolerance, grazing preference by livestock, waterlogging tolerance, seed production, cold tolerance, disease susceptibility and presence of secondary compounds. Tedera is a diploid, self-pollinated species. Therefore, 28 elite parents were hand-crossed in several combinations to combine outstanding attributes of parents; F1 hybrids were confirmed with the aid of highly polymorphic, simple sequence repeat markers. The F1s were progressed to F4s by single-seed descent breeding. Elite parent plants were selfed for two generations to be progressed in the breeding program without hybridisation. Over time, selections from the crossing and selfing program will deliver cultivars of three ideotypes: (i) drought-tolerant, (ii) cold- and drought-tolerant, (iii) waterlogging- and drought-tolerant.
Original languageEnglish
Pages (from-to)1114-1131
JournalCrop and Pasture Science
Volume65
Issue number11
DOIs
Publication statusPublished - 2014

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Mediterranean climate
flooded conditions
drought
breeding
Bituminaria bituminosa
livestock
autumn
ideotypes
rain
leaf abscission
seed crop production
selection index
summer
feeding preferences
selfing
cold tolerance
Western Australia
profits and margins
disease resistance
dietary supplements

Cite this

Real, Daniel ; Oldham, C.M. ; Nelson, Matthew ; Croser, Janine ; Castello, Marie-Claire ; Verbyla, A. ; Pradhan, A. ; Van Burgel, A.J. ; Méndez, P. ; Corréal, E. ; Teakle, Natasha ; Revell, Clinton ; Ewing, Mike. / Evaluation and breeding of tedera for Mediterranean climates in southern Australia. In: Crop and Pasture Science. 2014 ; Vol. 65, No. 11. pp. 1114-1131.
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title = "Evaluation and breeding of tedera for Mediterranean climates in southern Australia",
abstract = "{\circledC} 2014 CSIRO. Tedera (Bituminaria bituminosa C.H. Stirton var. albomarginata and var. crassiuscula) has been identified as one of the most productive and drought-tolerant species of herbaceous perennial legumes based on 6 years of field evaluation in Western Australia in areas with Mediterranean climate and annual rainfall ranging from 200 to 600mm. Importantly, tedera demonstrated broad adaptation to diverse soils, and some accessions have shown moderate levels of tolerance to waterlogging and salinity. Tedera exhibits minimal leaf shedding during summer and autumn. Economic modelling strongly suggests that giving livestock access to green tedera in summer and autumn will dramatically increase farm profit by reducing supplementary feeding. The breeding program (2006-12) evaluated the available genetic diversity of tedera for its field performance in seven nurseries with 6498 spaced plants in total covering a wide variation in rainfall, soils and seasons. Best overall plants were selected using a multivariate selection index generated with best linear unbiased predictors (BLUPs) of dry matter cuts and leaf retention traits. The breeding program also evaluated tedera for grazing tolerance, grazing preference by livestock, waterlogging tolerance, seed production, cold tolerance, disease susceptibility and presence of secondary compounds. Tedera is a diploid, self-pollinated species. Therefore, 28 elite parents were hand-crossed in several combinations to combine outstanding attributes of parents; F1 hybrids were confirmed with the aid of highly polymorphic, simple sequence repeat markers. The F1s were progressed to F4s by single-seed descent breeding. Elite parent plants were selfed for two generations to be progressed in the breeding program without hybridisation. Over time, selections from the crossing and selfing program will deliver cultivars of three ideotypes: (i) drought-tolerant, (ii) cold- and drought-tolerant, (iii) waterlogging- and drought-tolerant.",
author = "Daniel Real and C.M. Oldham and Matthew Nelson and Janine Croser and Marie-Claire Castello and A. Verbyla and A. Pradhan and {Van Burgel}, A.J. and P. M{\'e}ndez and E. Corr{\'e}al and Natasha Teakle and Clinton Revell and Mike Ewing",
year = "2014",
doi = "10.1071/CP13313",
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Real, D, Oldham, CM, Nelson, M, Croser, J, Castello, M-C, Verbyla, A, Pradhan, A, Van Burgel, AJ, Méndez, P, Corréal, E, Teakle, N, Revell, C & Ewing, M 2014, 'Evaluation and breeding of tedera for Mediterranean climates in southern Australia' Crop and Pasture Science, vol. 65, no. 11, pp. 1114-1131. https://doi.org/10.1071/CP13313

Evaluation and breeding of tedera for Mediterranean climates in southern Australia. / Real, Daniel; Oldham, C.M.; Nelson, Matthew; Croser, Janine; Castello, Marie-Claire; Verbyla, A.; Pradhan, A.; Van Burgel, A.J.; Méndez, P.; Corréal, E.; Teakle, Natasha; Revell, Clinton; Ewing, Mike.

In: Crop and Pasture Science, Vol. 65, No. 11, 2014, p. 1114-1131.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evaluation and breeding of tedera for Mediterranean climates in southern Australia

AU - Real, Daniel

AU - Oldham, C.M.

AU - Nelson, Matthew

AU - Croser, Janine

AU - Castello, Marie-Claire

AU - Verbyla, A.

AU - Pradhan, A.

AU - Van Burgel, A.J.

AU - Méndez, P.

AU - Corréal, E.

AU - Teakle, Natasha

AU - Revell, Clinton

AU - Ewing, Mike

PY - 2014

Y1 - 2014

N2 - © 2014 CSIRO. Tedera (Bituminaria bituminosa C.H. Stirton var. albomarginata and var. crassiuscula) has been identified as one of the most productive and drought-tolerant species of herbaceous perennial legumes based on 6 years of field evaluation in Western Australia in areas with Mediterranean climate and annual rainfall ranging from 200 to 600mm. Importantly, tedera demonstrated broad adaptation to diverse soils, and some accessions have shown moderate levels of tolerance to waterlogging and salinity. Tedera exhibits minimal leaf shedding during summer and autumn. Economic modelling strongly suggests that giving livestock access to green tedera in summer and autumn will dramatically increase farm profit by reducing supplementary feeding. The breeding program (2006-12) evaluated the available genetic diversity of tedera for its field performance in seven nurseries with 6498 spaced plants in total covering a wide variation in rainfall, soils and seasons. Best overall plants were selected using a multivariate selection index generated with best linear unbiased predictors (BLUPs) of dry matter cuts and leaf retention traits. The breeding program also evaluated tedera for grazing tolerance, grazing preference by livestock, waterlogging tolerance, seed production, cold tolerance, disease susceptibility and presence of secondary compounds. Tedera is a diploid, self-pollinated species. Therefore, 28 elite parents were hand-crossed in several combinations to combine outstanding attributes of parents; F1 hybrids were confirmed with the aid of highly polymorphic, simple sequence repeat markers. The F1s were progressed to F4s by single-seed descent breeding. Elite parent plants were selfed for two generations to be progressed in the breeding program without hybridisation. Over time, selections from the crossing and selfing program will deliver cultivars of three ideotypes: (i) drought-tolerant, (ii) cold- and drought-tolerant, (iii) waterlogging- and drought-tolerant.

AB - © 2014 CSIRO. Tedera (Bituminaria bituminosa C.H. Stirton var. albomarginata and var. crassiuscula) has been identified as one of the most productive and drought-tolerant species of herbaceous perennial legumes based on 6 years of field evaluation in Western Australia in areas with Mediterranean climate and annual rainfall ranging from 200 to 600mm. Importantly, tedera demonstrated broad adaptation to diverse soils, and some accessions have shown moderate levels of tolerance to waterlogging and salinity. Tedera exhibits minimal leaf shedding during summer and autumn. Economic modelling strongly suggests that giving livestock access to green tedera in summer and autumn will dramatically increase farm profit by reducing supplementary feeding. The breeding program (2006-12) evaluated the available genetic diversity of tedera for its field performance in seven nurseries with 6498 spaced plants in total covering a wide variation in rainfall, soils and seasons. Best overall plants were selected using a multivariate selection index generated with best linear unbiased predictors (BLUPs) of dry matter cuts and leaf retention traits. The breeding program also evaluated tedera for grazing tolerance, grazing preference by livestock, waterlogging tolerance, seed production, cold tolerance, disease susceptibility and presence of secondary compounds. Tedera is a diploid, self-pollinated species. Therefore, 28 elite parents were hand-crossed in several combinations to combine outstanding attributes of parents; F1 hybrids were confirmed with the aid of highly polymorphic, simple sequence repeat markers. The F1s were progressed to F4s by single-seed descent breeding. Elite parent plants were selfed for two generations to be progressed in the breeding program without hybridisation. Over time, selections from the crossing and selfing program will deliver cultivars of three ideotypes: (i) drought-tolerant, (ii) cold- and drought-tolerant, (iii) waterlogging- and drought-tolerant.

U2 - 10.1071/CP13313

DO - 10.1071/CP13313

M3 - Article

VL - 65

SP - 1114

EP - 1131

JO - Crop & Pasture Science

JF - Crop & Pasture Science

SN - 1836-0947

IS - 11

ER -