干旱区生态环境知识资源中心(Arid): Evaluation of Introgressed Lines of Sunflower (Helianthus annuus L.) under Contrasting Water Treatments

Arid

DOI	10.3390/agriculture13061250
	Evaluation of Introgressed Lines of Sunflower (Helianthus annuus L.) under Contrasting Water Treatments
	Hussain, Muhammad Mubashar; Rauf, Saeed; Noor, Muqadas; Bibi, Amir; Ortiz, Rodomiro; Dahlberg, Jeff
通讯作者	Ortiz, R
来源期刊	AGRICULTURE-BASEL
EISSN	2077-0472
出版年	2023
卷号	13 期号:6
英文摘要	Drought stress is a major production constraint in crops globally. Crop wild relatives are important sources of resistance and tolerance for both biotic and abiotic stresses, respectively. A breeding program was initiated to introgress drought tolerance in sunflowers through hybridization between the wild species Helianthus argophyllus and the cultivated pool of H. annuus. Selection was carried out from the F-2 to F-5 segregating populations for the silver canopy, high cuticular wax, small leaf area, single heading and high oil content. Cuticular wax ranged between 8.72 & mu;g g(-1) and 17.19 & mu;g g(-1) in the F-5 offspring. The selected F-5 breeding lines were self-pollinated to obtain the F-6 generation. Thereafter, this F-6 was compared with the non-adapted elite sunflower germplasm in a factorial complete randomized design with different water treatments; i.e., comparing fully irrigated (100%, T0) versus 75% (T1), 50% (T2) and 25% (T3) of total irrigation. The comparison between the two types of the germplasm showed that drought-tolerant breeding lines had a comparatively lesser decrease in leaf area (0, 11, 22%) and shoot length (4, 21, 28%) than the elite germplasm, which experienced a decrease in leaf area (21%, 33% and 40%) and shoot length (17, 27 and 34%) under the various drought treatments. Moreover, drought-tolerant breeding lines had 100% more root shoot ratios than the elite germplasm (20%) in T3 when compared with control. Several drought-tolerant promising lines (D-2, D-5 and D-27) were selected due to their high leaf area, great root length and increased root to shoot ratio under T3. Some of the lines could be directly used for the development of drought-tolerant hybrids. Combining ability testing indicated that D-27 (F-7) was a good general combiner for seed yield plant(-1) and oil content after mating with male-line RSIN.82. Resulting hybrids could help to minimize seed yield loss due to water stress and to achieve profitable cultivation of sunflowers in arid regions of Pakistan.
英文关键词	drought stress introgression leaf area root to shoot ratio wild species yield loss
类型	Article
语种	英语
开放获取类型	gold, Green Submitted, Green Published
收录类别	SCI-E
WOS记录号	WOS:001013820600001
WOS关键词	ARGOPHYLLUS ; IRRIGATION
WOS类目	Agronomy
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/2XILL650/395150
推荐引用方式 GB/T 7714	Hussain, Muhammad Mubashar,Rauf, Saeed,Noor, Muqadas,et al. Evaluation of Introgressed Lines of Sunflower (Helianthus annuus L.) under Contrasting Water Treatments[J],2023,13(6).
APA	Hussain, Muhammad Mubashar,Rauf, Saeed,Noor, Muqadas,Bibi, Amir,Ortiz, Rodomiro,&Dahlberg, Jeff.(2023).Evaluation of Introgressed Lines of Sunflower (Helianthus annuus L.) under Contrasting Water Treatments.AGRICULTURE-BASEL,13(6).
MLA	Hussain, Muhammad Mubashar,et al."Evaluation of Introgressed Lines of Sunflower (Helianthus annuus L.) under Contrasting Water Treatments".AGRICULTURE-BASEL 13.6(2023).