Mehdi Razmkhah; Ali Moradi; Hojatollah Latifmanesh; Hamidreza Balouchi
Abstract
Camelina (Camelina sativa) is a one-year oil plant, one of the most important problems of its cultivation is the interaction of seed germination and seed establishment with drought stress. Use of herbal treatments such as rye plant extract can speed up them, especially in drought-stress conditions. Therefore, ...
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Camelina (Camelina sativa) is a one-year oil plant, one of the most important problems of its cultivation is the interaction of seed germination and seed establishment with drought stress. Use of herbal treatments such as rye plant extract can speed up them, especially in drought-stress conditions. Therefore, this research was conducted to investigate the effect of priming and priming time on germination and some biochemical traits of Camelina under drought stress in the Agriculture and Genetics Laboratory of Yasouj University from 2021 to 2022. The experiment was conducted as a factorial in a completely randomized design with 4 replications. The first factor was priming with Danko variety of rye plant root extract at 3 levels (zero, 40 and 60%), The second factor was priming times at three levels (zero, 6 and 12 hours) and the third factor included drought stress at three levels (zero, -3 and -6 times). Based on the obtained results, it was observed that drought stress affected the biochemical indicators and germination of Camelina and pre-treatment with rye extract at a concentration of 60% along with prime in 12 hours with the improvement of some biochemical indicators and germination were able to increase the tolerance of Camelina seedlings under drought stress by affecting the non-enzymatic antioxidant defense system of the plant. The results of the experiment show that using Danko variety of rye root extract with a concentration of 60% in 12 hours improves physical characteristics of the seed, helping germination in optimal and drought stress conditions.
Ali Shayanfar; Samad Mobasser; Bita Oskouei; Leila Zare
Abstract
Camelina Cv. Soheil seed storability was assessed to simulate after-harvest condition till the following growing season. Seven seed samples were collected from Shirvan, Fasa, Marvdasht, Kermanshah, Hamedan, Sabzevar, and Ilam regions and saved for six months in two storage condition (with two temperatures ...
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Camelina Cv. Soheil seed storability was assessed to simulate after-harvest condition till the following growing season. Seven seed samples were collected from Shirvan, Fasa, Marvdasht, Kermanshah, Hamedan, Sabzevar, and Ilam regions and saved for six months in two storage condition (with two temperatures of 10 and 25ºC). Then, they were drow out monthly from storage condition to evaluate different seed germination index and vigour. Moisture seed content did not acced more than 10 percent in all treatments. Germination percentage and normal seedlings were more than 94% after 6 months of storage in all seed samples and two temperatures. Weight seedling vigour showed no significant differences in all samples, except the Sabzevar sample. The effects of three factors (seed samples, temperature and storage time) on rate germination index were difference. Seed physiological responses (in terms of rate germination) to 10 and 25ºC temperatures were similar until the fourth months in more samples. However, a declining process was observed from the fourth month at 25ºC and from the fifth month at 10ºC for these responses and accend minimum in six months. Two seed samples of Hamedan and Kermanshah showed higher rate of germination. In total, Camelina seeds showed high storage potential due to high germination percentage was recorded after six months of storage. In addition, if seeds stored for more than 4 months, plants in field condition lower germination rate will observe.
