干旱区生态环境知识资源中心(Arid): Productivity of diverse forage brassica genotypes exceeds that of oats across multiple environments within Australia's mixed farming zone

Arid

DOI	10.1071/CP21034
	Productivity of diverse forage brassica genotypes exceeds that of oats across multiple environments within Australia's mixed farming zone
	Watt, Lucinda J.; Bell, Lindsay W.; Cocks, Brett D.; Swan, Anthony D.; Stutz, Rebecca S.; Toovey, Andrew; De Faveri, Joanne
通讯作者	Watt, LJ (corresponding author), CSIRO Agr & Food, POB 102, Toowoomba, Qld 4350, Australia.
来源期刊	CROP & PASTURE SCIENCE
ISSN	1836-0947
EISSN	1836-5795
出版年	2021
卷号	72 期号:5 页码:393-406
英文摘要	In many areas of Australia's mixed farming zone, cropping rotations are dominated by cereals and some areas have few suitable broadleaf alternatives. Forage brassicas are widely used in high rainfall livestock systems, but this study shows that several genotypes offer an alternative to forage oats in drier environments within Australia's mixed farming zone. We compared a diverse set of forage brassica genotypes sown in autumn and winter with benchmark species, principally oats, across 10 experimental site-years. In both early (800-1300 growing degree days after sowing) and late (1600-2100 growing degree days after sowing) grazing windows, several forage brassica genotypes had forage production similar or superior to oats and dual-purpose canola. Many forage brassica genotypes produced higher yields of metabolisable energy (ME) and crude protein (CP), particularly in the late grazing window. In the early grazing window, Rival and Green globe turnips and HT-R24 forage rape consistently produced ~15% above the site mean for all productivity measures, whereas kale produced ~40% less than the site mean. In the late grazing window, oats produced the greatest amount of edible biomass (~44% higher than the site mean); however, Goliath and HT-R24 forage rapes, Pallaton raphanobrassica and dual-purpose canola had the highest yields of ME and CP (~16% higher than the site mean). Green globe turnip, Hunter leafy turnip and Regal kale produced ~22% less than the site mean in this late grazing window. Multi-environment analyses revealed no genotype x environment interactions within the early grazing window. In the late grazing window, there were several genotypic adaptations, particularly for Pallaton, which performed better in low-medium production environments than the other genotypes. We show that forage brassicas offer superior yields of ME and CP, indicating that they may be better able to meet the energy and protein demands of grazing livestock than forage oats.
英文关键词	arid environments crude protein feedbase metabolisable energy multi-environment analysis
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000656436500007
WOS关键词	HIGH-RAINFALL ZONE ; BREAK-CROPS ; CANOLA ; YIELD ; NAPUS ; FEED ; AGRICULTURE ; CULTIVARS ; BIOLOGY ; MODELS
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367909
作者单位	[Watt, Lucinda J.; Bell, Lindsay W.; Cocks, Brett D.] CSIRO Agr & Food, POB 102, Toowoomba, Qld 4350, Australia; [Swan, Anthony D.; Stutz, Rebecca S.] CSIRO Agr & Food, POB 1700, Canberra, ACT 2601, Australia; [Toovey, Andrew] CSIRO Agr & Food, Private Bag 5, Wembley, WA 6913, Australia; [De Faveri, Joanne] CSIRO Data 61, POB 780, Atherton, Qld 4883, Australia
推荐引用方式 GB/T 7714	Watt, Lucinda J.,Bell, Lindsay W.,Cocks, Brett D.,et al. Productivity of diverse forage brassica genotypes exceeds that of oats across multiple environments within Australia's mixed farming zone[J]. Commonwealth Scientific and Industrial Research Organisation,2021,72(5):393-406.
APA	Watt, Lucinda J..,Bell, Lindsay W..,Cocks, Brett D..,Swan, Anthony D..,Stutz, Rebecca S..,...&De Faveri, Joanne.(2021).Productivity of diverse forage brassica genotypes exceeds that of oats across multiple environments within Australia's mixed farming zone.CROP & PASTURE SCIENCE,72(5),393-406.
MLA	Watt, Lucinda J.,et al."Productivity of diverse forage brassica genotypes exceeds that of oats across multiple environments within Australia's mixed farming zone".CROP & PASTURE SCIENCE 72.5(2021):393-406.