干旱区生态环境知识资源中心(Arid): Physiological traits, crop growth, and grain quality of quinoa in response to deficit irrigation and planting methods

Arid

DOI	10.1186/s12870-024-05523-5
	Physiological traits, crop growth, and grain quality of quinoa in response to deficit irrigation and planting methods
	Mirsafi, Sayyed Mohammad; Sepaskhah, Ali Reza; Ahmadi, Seyed Hamid
通讯作者	Sepaskhah, AR
来源期刊	BMC PLANT BIOLOGY
ISSN	1471-2229
出版年	2024
卷号	24 期号:1
英文摘要	Climate change has become a concern, emphasizing the need for the development of crops tolerant to drought. Therefore, this study is designed to explore the physiological characteristics of quinoa that enable it to thrive under drought and other extreme stress conditions by investigating the combined effects of irrigation water levels (100%, 75%, and 50% of quinoa's water requirements, WR as I1, I2 and I3) and different planting methods (basin, on-ridge, and in-furrow as P1, P2 and P3) on quinoa's physiological traits and gas exchange. Results showed that quinoa's yield is lowest with on-ridge planting and highest in the in-furrow planting method. Notably, the seed protein concentrations in I2 and I3 did not significantly differ but they were 25% higher than those obtained in I1, which highlighted the possibility of using a more effective irrigation method without compromising the seed quality. On the other hand, protein yield (PY) was lowest in P2 (mean of I1 and I2 as 257 kg ha-1) and highest in P3 (mean of I1 and I2 as 394 kg ha-1, 53% higher). Interestingly, PY values were not significantly different in I1 and I2, but they were lower significantly in I3 by 28%, 27% and 20% in P1, P2, and P3, respectively. Essential plant characteristics including plant height, stem diameter, and panicle number were 6.1-16.7%, 6.4-24.5%, and 18.4-36.5% lower, respectively, in I2 and I3 than those in I1. The highest Leaf Area Index (LAI) value (5.34) was recorded in the in-furrow planting and I1, while the lowest value was observed in the on-ridge planting method and I3 (3.47). In I3, leaf temperature increased by an average of 2.5-3 oC, particularly during the anthesis stage. The results also showed that at a similar leaf water potential (LWP) higher yield and dry matter were obtained in the in-furrow planting compared to those obtained in the basin and on-ridge planting methods. The highest stomatal conductance (gs) value was observed within the in-furrow planting method and full irrigation (I1P3), while the lowest values were obtained in the on-ridge and 50%WR (I3P2). Finally, photosynthesis rate (An) reduction with diminishing LWP was mild, providing insights into quinoa's adaptability to drought. In conclusion, considering the thorough evaluation of all the measured parameters, the study suggests using the in-furrow planting method with a 75%WR as the best approach for growing quinoa in arid and semi-arid regions to enhance production and resource efficiency.
英文关键词	Drought tolerance Leaf Area Index Photosynthesis rate Stomatal conductance
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001300718100003
WOS关键词	RADIATION USE EFFICIENCY ; WATER-USE INDICATORS ; LEAF GAS-EXCHANGE ; EXTINCTION COEFFICIENTS ; NITROGEN-FERTILIZATION ; ABIOTIC STRESSES ; JASMONIC ACID ; WINTER-WHEAT ; PIMA COTTON ; DROUGHT
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403057
推荐引用方式 GB/T 7714	Mirsafi, Sayyed Mohammad,Sepaskhah, Ali Reza,Ahmadi, Seyed Hamid. Physiological traits, crop growth, and grain quality of quinoa in response to deficit irrigation and planting methods[J],2024,24(1).
APA	Mirsafi, Sayyed Mohammad,Sepaskhah, Ali Reza,&Ahmadi, Seyed Hamid.(2024).Physiological traits, crop growth, and grain quality of quinoa in response to deficit irrigation and planting methods.BMC PLANT BIOLOGY,24(1).
MLA	Mirsafi, Sayyed Mohammad,et al."Physiological traits, crop growth, and grain quality of quinoa in response to deficit irrigation and planting methods".BMC PLANT BIOLOGY 24.1(2024).