Evaluation of Germination Components of Different Quinoa Lines (Chenopodium Quinoa Willd.) Under Salt Stress
Subject Areas :
Monireh Abooei
1
,
Naser Boroomand
2
,
Masomeh Salehi
3
1 - Soil Science Department, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman,Iran.
2 - Soil Science Department ,Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran.
3 - National Salinity Research Center, Agricultural Research, Education and Extension Organization (AREEO), Yazd, Iran
Keywords: Chenopodium quinoa, Hyper saline water, Line, Seed germ,
Abstract :
Planting halophyte plants such as quinoa (Chenopodium quinoa Willd) is one of the best ways to increase the productivity of salty water. In this regard, in order to evaluate the effect of salinity stress on different lines of quinoa, a factorial experiment was carried out in the form of a completely randomized design in four replications in 2018.Experimental treatments include salt stress at five levels (control, 10, 20, 30, 40 and 50 dS/m) and four lines (NSRCQC, NSRCQE, NSRCQB, NSRCQG) and three cultivars (Titicaca , Sadogh, Rahmat) of quinoa. Germination components including final germination percentage, speed, time and uniformity of germination and seedling growth components including seedling length, seedling vigor length index and seedling vigor wieght index were investigated.The results showed that the increase in salinity level had a significant decrease in germination traits, germination speed and seedling length. in addition, the increase salt caused an increase in germination time and an increase in seedlinvigor length index.In general, the lines had good tolerance up to the level of 30 dS/m. But with the increase of salinity level of 40 and 50 decisiemens their tolerance decreased. Among the lines, the NSRCQD line had good tolerance and stability. So that up to the level of 40 and 50 dS/m, it had the highest amount in some traits.
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