干旱区生态环境知识资源中心(Arid): Viability of pollen grains and stigma receptivity in Desert Rose

Arid

DOI	10.1590/2447-536X.v28i1.2402
	Viability of pollen grains and stigma receptivity in Desert Rose
	Souza, Cristiane Goncalves; Ramos, Sabrina Maihave Barbosa; Nietsche, Silvia; Possobom, Clivia Carolina Fiorilo; Almeida, Elka Fabiana Aparecida; Pereira, Marlon Cristian Toledo
通讯作者	Nietsche, S (corresponding author)，Univ Fed Minas Gerais, Inst Ciencias Agr, Montes Claros, MG, Brazil.
来源期刊	ORNAMENTAL HORTICULTURE-REVISTA BRASILEIRA DE HORTICULTURA ORNAMENTAL
EISSN	2447-536X
出版年	2022
卷号	28 期号:1 页码:92-98
英文摘要	Adenium obesum (Forssk.) Roem. & Schult., popularly known as desert rose, has become a valuable ornamental plant. In floriculture, the production of hybrids is prioritized. Hence, knowledge on floral biology and sexual reproduction of the target species is fundamental. The objectives of this study were: (1) to test sucrose concentrations and temperatures for in vitro germination of A. obesum pollen grains; (2) to identify the effect of temperature on the viability of A. obesum pollen grains; and (3) to evaluate the viability of pollen grains and stigma receptivity in pre-anthesis, at flower opening, and 72 h post-flower opening in three accessions of A. obesum. A significant relationship between temperatures and sucrose concentrations was observed in the in vitro germination test. The highest percentage of in vitro germination of pollen grains, 39.81%, was observed at an estimated temperature of 26.05 degrees C. Desert rose accessions maintained in biochemical oxygen demand (BOD) chambers at 30 degrees C during a 16-h light photoperiod showed faster flowering, and temperatures >= 25 degrees C induced pollen grain viability percentages above 69%. Temperature is one of the most important abiotic factors, influencing mainly in pollen germination, pollen tube growing and in efficiency fertilization. The ICA-wd accession stood out and can be considered a pollen donor in artificial pollination. The stigmas of flowers were receptive from a day before flower opening until three days after. The two parameters presented above, stigma receptivity and pollen viability, allow inferences about the appropriate time for successful pollination and subsequent fertilization in desert roses.
英文关键词	anthesis floriculture sucrose temperature
类型	Article
语种	英语
开放获取类型	gold
收录类别	ESCI
WOS记录号	WOS:000759160200010
WOS关键词	ADENIUM-OBESUM ; GERMINATION ; LONGEVITY ; GROWTH ; FLOWER
WOS类目	Plant Sciences ; Horticulture
WOS研究方向	Plant Sciences ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376991
作者单位	[Souza, Cristiane Goncalves; Ramos, Sabrina Maihave Barbosa; Nietsche, Silvia; Possobom, Clivia Carolina Fiorilo; Almeida, Elka Fabiana Aparecida] Univ Fed Minas Gerais, Inst Ciencias Agr, Montes Claros, MG, Brazil; [Pereira, Marlon Cristian Toledo] Univ Fed Minas Gerais, Dept Ciencias Agr, Janauba, MG, Brazil
推荐引用方式 GB/T 7714	Souza, Cristiane Goncalves,Ramos, Sabrina Maihave Barbosa,Nietsche, Silvia,et al. Viability of pollen grains and stigma receptivity in Desert Rose[J],2022,28(1):92-98.
APA	Souza, Cristiane Goncalves,Ramos, Sabrina Maihave Barbosa,Nietsche, Silvia,Possobom, Clivia Carolina Fiorilo,Almeida, Elka Fabiana Aparecida,&Pereira, Marlon Cristian Toledo.(2022).Viability of pollen grains and stigma receptivity in Desert Rose.ORNAMENTAL HORTICULTURE-REVISTA BRASILEIRA DE HORTICULTURA ORNAMENTAL,28(1),92-98.
MLA	Souza, Cristiane Goncalves,et al."Viability of pollen grains and stigma receptivity in Desert Rose".ORNAMENTAL HORTICULTURE-REVISTA BRASILEIRA DE HORTICULTURA ORNAMENTAL 28.1(2022):92-98.