Evaluation of different planting ratio of sorghum-kochia intercropping in varied salinity conditions

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Hedyati Firoozabadi a.; KAZEMEINI S.A.; PIRASTEH ANOSHEH H.

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Journal: IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH Year:2017 | Volume:24 | Issue:3 (68) Page(s): 685-698

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Title

Evaluation of different planting ratio of sorghum-kochia intercropping in varied salinity conditions

Author(s)

Hedyati Firoozabadi a. | KAZEMEINI S.A. | PIRASTEH ANOSHEH H. | Issue Writer Certificate

Keywords

ForageQ1

halocultureQ2

halophyteQ2

rangeland speciesQ2

Abstract

In order to evaluate the Forage yield in sorghum (Sorghum bicolor)-kochia (Bassia indica) intercropping, a two-year field study was conducted as a split plot based on randomized completed design with three replications. The treatments included three levels of salt stress: 2, 7 and 14 dS m-1 in the main plots and five planting systems: sole sorghum, ⅔ sorghum, ½ sorghum, ⅓ sorghum and sole Kochia in the sub plots. The results showed that salt stress although reduced the growth and Forage yield of both species, Kochia had lower yield reduction, so that 7 dS m-1 salinity had no-significant effect on height and dry Forage of Kochia. Furthermore, 14 dS m-1 salinity level decreased height, dry and fresh Forage by 52. 1%, 44. 9% and 62. 4% in sorghum and by 15. 5%, 38. 7% and 23. 3% in Kochia, respectively. This salinity level also reduced relative yield (RY) of sorghum by 9%, while had not significant effect on RY of Kochia. Kochia in all salinity levels showed less response to intercropping, so that in all treatments and for all traits there was no significant difference between ⅓ and ½ sorghum intercropping with sole crop. In this respect, ⅓ sorghum in all salinity levels and ½ sorghum in 14 dS m-1 had a RY more than 1. Sorghum was affected by competition, so that fresh and dry weight of sorghum was not significantly reduced only in ⅓ sorghum than sole crop. Intercropping as ⅔ sorghum especially in high salinity was a severe inhibitor for sorghum. Sorghum RY was more than 1 only in ⅔ sorghum under moderate salinity. The results indicated that the optimum intercropping for each species not only had no significant on Forage yield, but also modulated the negative effect of salinity on both species. Achieving a conclusive result for deciding about intercropping in saline conditions needs more research.

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APA: Copy

Hedyati Firoozabadi, a., KAZEMEINI, S.A., & PIRASTEH ANOSHEH, H.. (2017). Evaluation of different planting ratio of sorghum-kochia intercropping in varied salinity conditions. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, 24(3 (68) ), 685-698. SID. https://sid.ir/paper/107254/en

Vancouver: Copy

Hedyati Firoozabadi a., KAZEMEINI S.A., PIRASTEH ANOSHEH H.. Evaluation of different planting ratio of sorghum-kochia intercropping in varied salinity conditions. IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH[Internet]. 2017;24(3 (68) ):685-698. Available from: https://sid.ir/paper/107254/en

IEEE: Copy

a. Hedyati Firoozabadi, S.A. KAZEMEINI, and H. PIRASTEH ANOSHEH, “Evaluation of different planting ratio of sorghum-kochia intercropping in varied salinity conditions,” IRANIAN JOURNAL OF RANGE AND DESERT RESEARCH, vol. 24, no. 3 (68) , pp. 685–698, 2017, [Online]. Available: https://sid.ir/paper/107254/en

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