آمار
| تعداد نشریات | 45 |
| تعداد شمارهها | 1,489 |
| تعداد مقالات | 18,167 |
| تعداد مشاهده مقاله | 58,750,124 |
| تعداد دریافت فایل اصل مقاله | 20,197,240 |
Response of agronomic characteristics of oilseed rape (Brassica napus L.) to drought stress | ||
| Journal of Plant Physiology and Breeding | ||
| دوره 11، شماره 2، اسفند 2021، صفحه 135-145 اصل مقاله (509.03 K) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22034/jppb.2021.14580 | ||
| نویسندگان | ||
| Fatemeh SedaghatDill1؛ Reza Amiri Fahliani* 2؛ Behrouz Vaezi3؛ Mohsen Movahhedi Dehnavi1 | ||
| 1Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University, Yasouj, Iran | ||
| 2Department of Agronomy and Plant Breeding, Faculty of Agriculture, Yasouj University,Yasouj, Iran. | ||
| 3Kohgiluyeh and Boyer-Ahmad Agricultural and Natural Resources Research and Education Centre, Agricultural Research, Education and Extension Organization (AREEO), Yasouj, Iranand Extension Organization (AREEO), Yasouj, Iran. | ||
| چکیده | ||
| Climate change may contribute to drought stress and limit crop production. The oilseed rape (Brassica napus L.) cultivation area has declined due to drought stress. Identification of high-yielding and tolerant varieties could be regarded as a solution to this problem. Twelve oilseed rape genotypes were planted under drought stress and normal conditions in Lishtar, Gachsaran, Iran, using a randomized complete block design with three replications in 2017. A considerable decline in the pods per plant (76%), pod length (20%), grain yield (80%), biomass (73%), harvest index (37%), plant height (34%), seeds per pod (41%) and branches per plant (41%) of genotypes was observed in the evaluated genotypes of the oilseed rape as the consequence of drought stress. In general, grain yield, biomass, and pods per plant had a very high sensitivity to moisture reduction. The significant direct effect of the pod number and 1000-seed weight on the grain yield showed that these characteristics can be used to select the promising genotypes to increase the grain yield of oilseed rape under normal conditions. Under drought stress conditions, branch number per plant, pod length, and seeds per pod had a significant direct effect on grain yield. Increasing these traits and reducing the plant height and shortening the growth period may improve the grain yield of the oilseed rape. Hyola401, RGS003, and Hyola308, showed the highest grain yield under both drought stress and normal conditions among the evaluated oilseed rape genotypes. They may be regarded as the promising varieties to be planted in the conditions of the experimental site or similar areas. | ||
| کلیدواژهها | ||
| Direct effect؛ Drought؛ Oilseed rape؛ Path analysis | ||
| مراجع | ||
|
Blum A, 2017. Plant Breeding for Stress Environments. CRC Press, USA.
Clarke JM, DePauw RM, and Townley-Smith TF, 1992. Evaluation of methods for quantification of drought tolerance in wheat. Crop Science 32(3): 723-728.
Diepenbrock W, 2000. Yield analysis of winter oilseed rape (Brassica napus L.): a review. Field Crops Research 67(1): 35-49.
Hashemi AS, Nematzadeh GA, Babaeian Jelodar N, and Ghasemi Chapi O, 2010. Genetic evaluation of yield and yield components at advanced generations in rapeseed (Brassica napus L.). African Journal of Agricultural Research 5(15): 1958-1964.
Jensen CR, Mogensen VO, Mortensen G, Fieldsend JK, Milford GFJ, Andersen MN, and Thage JH, 1996. Seed glucosinolate, oil and protein contents of field-grown rape (Brassica napus L.) affected by soil drying and evaporative demand. Field Crops Research 47(2-3): 93-105.
Kalantar Ahmadi SA, Shirani Radand AH, and Siadat SA, 2015. Study of limited-irrigation stress on grain yield of canola cultivars in north Khouzestan conditions. Journal of Oil Plants Production 1(2): 53-65 (In Persian with English abstract).
Kearsey MJ, and Pooni HS, 1998. The Genetical Analysis of Quantitative Traits. Stanley Thornes Publishers Ltd., UK.
Kline RB, 2005. Principles and Practice of Structural Equation Modeling, 2nd ed. Guilford Press, New York, USA.
Lu GY, Zhang F, Zheng PY, Cheng Y, Liu FI, Fu GP, and Zhang XK, 2011. Relationship among yield components and selection criteria for yield improvement in early rapeseed (Brassica napus L.). Agricultural Sciences in China 10(7): 997-1003.
Marjanović-Jeromela A, Marinković R, Ivanovska S, Jankulovska M, Mijić A, and Hristov N, 2011. Variability of yield determining components in winter rapeseed (Brassica napus L.) and their correlation with seed yield. Genetika 43(1): 51-66.
Nielsen DC, 1997. Water use and yield of canola under dryland conditions in the central Great Plains. Journal of Production Agriculture 10(2): 307-313.
Shabani A, Kamkar Haghighi AA, Sepaskhah AR, Emam Y, and Honar T, 2010. Effect of water stress on grain yield, yield components and quality of winter rapeseed (Brasica napus L.) cv. Licord. Iranian Journal of Crop Sciences 12(4): 409-421 (In Persian with English abstract).
Shirani Rad AH, Naeemi M, and Nasr Esfahani Sh, 2010. Evaluation of terminal drought stress tolerance in spring and winter rapeseed genotypes. Iranian Journal of Crop Sciences 12(2): 112-126 (In Persian with English abstract).
Vu TTH, Le TTC, Vu DH, Nguyen TT, and Ngoc T, 2019. Correlations and path coefficients for yield related traits in soybean progenies. Asian Journal of Crop Science 11: 32-39.
Wright S, 1934. The method of path coefficients. Annals of Mathematical Statistics 5(3): 161-215.
| ||
|
آمار تعداد مشاهده مقاله: 459 تعداد دریافت فایل اصل مقاله: 456 |
||