Study of root system relationship with water relations in Rapeseed under drought stress conditions

Jabbari, Hamid; Khosh Kholgh Sima, Nayyer Azam; Akbari, Gholam Abbas; Allahdadi, Iraj; Shirani Rad, Amir Hossein; Hamed, Ali

doi:10.22059/jci.2016.56544

Document Type : Research Paper

Authors

¹ Research Assistant Professor, Department of Oil Seed Research, Seed and Plant Improvement Institute, Karaj, Iran

² Assistant Professor, Agricultural Biotechnology Research Institute of Iran (ABRII), Karaj, Iran

³ Associate Professor, Department of Agronomy and Plant Breeding, College of Aboureyhan, University of Tehran, Tehran, Iran

⁴ Professor, Department of Agronomy and Plant Breeding, College of Aboureyhan, University of Tehran, Tehran, Iran

⁵ Research Professor, Department of Oil Seed Research, Seed and Plant Improvement Institute, Karaj, Iran

⁶ M.Sc. of Agronomy, Department of Agronomy and Plant Breeding, College of Aboureyhan, University of Tehran, Tehran, Iran

https://doi.org/10.22059/jci.2016.56544

Abstract

In order to study of root system relationship with water relations in Rapeseed under drought stress conditions, a pot experiment was carried out in greenhouse at Agricultural Biotechnology Research Institute of Iran (Karaj) in 2012. Five winter Rapeseed genotypes were evaluated under four irrigation treatments, using a factorial experiment based on randomized complete block design. The results indicated that response of genotypes to irrigation treatments was different for stomata conductivity, SPAD value, root length and diameter, morphologic characteristics, yield and yield components. In control, Cooper produced the highest grain yield that due to higher silique number per plant, whereas, ‘Opera’ had the maximum grain yield under drought stress treatments. This subject was due to higher root depth and diameter in ‘Opera’ and on the basis of these characters, the high leaf area duration, stomata conductivity, silique number and grain number was observed in ‘Opera’. In conclusion, these results showed that role of root morphologic characteristics in Rapeseed adaptation to drought tolerance is powerful and an effective root system with last stomata conductivity, more leaf area duration and high silique number were more important for yield maintenance of Rapeseed under drought stress conditions.

Keywords

20.1001.1.83372008.1395.18.1.1.0

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Journal of Crops Improvement

Study of root system relationship with water relations in Rapeseed under drought stress conditions

References

References

Volume 18, Issue 1 - Serial Number 1
March 2016
Pages 1-19

Study of root system relationship with water relations in Rapeseed under drought stress conditions

References

References

Volume 18, Issue 1 - Serial Number 1March 2016Pages 1-19

Volume 18, Issue 1 - Serial Number 1
March 2016
Pages 1-19