干旱区生态环境知识资源中心(Arid): Tillering Capacity of Brachiaria Cultivars in the Brazilian Semi-Arid Region During the Dry Season

Arid

DOI	10.5398/tasj.2020.43.2.133
	Tillering Capacity of Brachiaria Cultivars in the Brazilian Semi-Arid Region During the Dry Season
	Veras, E. L. L.; Difante, G. S.; Gurgel, A. L. C.; Costa, C. M.; Emerenciano Neto, J., V; Rodrigues, J. G.; Costa, A. B. G.; Pereira, M. G.; Itavo, L. C., V
通讯作者	Gurgel, ALC
来源期刊	TROPICAL ANIMAL SCIENCE JOURNAL
ISSN	2615-787X
EISSN	2615-790X
出版年	2020
卷号	43 期号:2 页码:133-140
英文摘要	Identifying forage species that are responsive in regions with marked water deficits is one of the greatest challenges for the sustainable development of agriculture. However, information is still lacking about the persistence response of those pastures and their abilities to produce new tissues at the times of water scarcity. We hypothesized that Brachiaria grass has a tillering capacity during water-stress periods. This study thus examined the tillering capacity and structural characteristics of four Brachiaria brizantha cultivars (Xaraes, Piata, Marandu, and Paiaguas) and one Brachiaria decumbens cultivar (Basilisk) in the Brazilian semi-arid region during the dry season (September to March). The experiment was laid out in a randomized block design with repeated measures over time in which five treatments were tested in four replicates. Tillering parameters, pasture production, and structural variables were evaluated. There was no interaction effect of cultivar x evaluation period on the tiller appearance (p= 0.1774), mortality (p= 0.1952) or survival (p= 0.4469) rates. The highest tiller appearance and mortality rates were observed in Marandu, while the highest survival rates were found in Marandu and Paiaguas. The index of tiller population stability was higher than or equal to 1.0 in all cultivars. Cultivar Basilisk showed the highest herbage mass yield (4448.0 kg DM ha(-1)), whereas Basilisk exhibited the highest yields of leaf (1845.9 kg DM ha(-1)), stem (1676.9 kg DM ha(-1)), and dead material (925.2 kg DM ha(-1)), The highest leaf:stem ratio (1.8) was found in Marandu. Cultivar Xaraes had the highest canopy (70.8 cm). The B. brizantha and B. decumbens cultivars evaluated in this study have the potential for cultivation in areas with marked water deficits, as is the case of the Brazilian semi-arid region. Cultivars Marandu, Basilisk, and Paiaguas exhibited the greatest tillering dynamics as well as the highest herbage-mass yield.
英文关键词	Brachiaria brizantha Brachiaria decumbens forage tillering dynamics tropical grassland
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	ESCI
WOS记录号	WOS:000540330000006
WOS关键词	STRUCTURAL CHARACTERISTICS ; NITROGEN-FERTILIZER ; TROPICAL GRASSES ; BRS PAIAGUAS ; FORAGE ; ACCUMULATION ; PERFORMANCE ; PASTURES ; DYNAMICS ; SHEEP
WOS类目	Agriculture, Dairy & Animal Science
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334409
作者单位	[Veras, E. L. L.; Difante, G. S.; Gurgel, A. L. C.; Costa, C. M.; Costa, A. B. G.; Itavo, L. C., V] Univ Fed Mato Grosso, Fac Vet Med & Anim Sci, Av Senador Felinto Muller 2443, BR-79070900 Campo Grande, MS, Brazil; [Emerenciano Neto, J., V] Fed Univ Vale Sao Francisco, Campus Agr Sci, Petrolina, PE, Brazil; [Rodrigues, J. G.; Pereira, M. G.] Univ Fed Rio Grande do Norte, Specialized Unit Agr Sci, Natal, RN, Brazil
推荐引用方式 GB/T 7714	Veras, E. L. L.,Difante, G. S.,Gurgel, A. L. C.,et al. Tillering Capacity of Brachiaria Cultivars in the Brazilian Semi-Arid Region During the Dry Season[J],2020,43(2):133-140.
APA	Veras, E. L. L..,Difante, G. S..,Gurgel, A. L. C..,Costa, C. M..,Emerenciano Neto, J., V.,...&Itavo, L. C., V.(2020).Tillering Capacity of Brachiaria Cultivars in the Brazilian Semi-Arid Region During the Dry Season.TROPICAL ANIMAL SCIENCE JOURNAL,43(2),133-140.
MLA	Veras, E. L. L.,et al."Tillering Capacity of Brachiaria Cultivars in the Brazilian Semi-Arid Region During the Dry Season".TROPICAL ANIMAL SCIENCE JOURNAL 43.2(2020):133-140.