The Effect of Drought Stress on Grain Yield and Oil Rate and Protein Percentage of Four Varieties Castor in Climatic Conditions of Damghan

محورهای موضوعی :

Gh. Laei ¹

1 - Faculty Member, Agricultural Department, Damghan Branch, Islamic Azad University, Damghan, Iran

تاریخ دریافت : 1391/05/14 تاریخ پذیرش : 1397/08/07 تاریخ انتشار : 1391/03/12

کلید واژه: Protein, Drought stress, Grain yield, Oil, castor,

چکیده مقاله :

In this study theeffect ofdrought stress was investigated on grain yield and oil rate and protein percentage of four varieties of castor in the climatic conditions of Damghan. The experiment was done in the research farm of Damghan Islamic Azad University(Iran)in 2011 assplit plots in a randomized complete block design with three replications. The main plots of drought stress were 5, 10 and15 days and another factor included four varities of castor ( one-flower, two- flower, local and red-flower) which were performed in stable density of fivebushes per cultured square meter. Therefore, after gremination, the amount of irrigation water was recorded using volumetric meters. The traits evaluated included oil rate,seed protein percentage, andgrainyield. The results show that two-flower variety with 1241 kg per hectare on 5-day drought stress has the most grain yield. Most oil rate was observed in two-flower variety on 5 day drought stress with 496.4 kg/ha.

منابع و مأخذ:

1. Barradas,V. L., H. G. Jones, and J. A. Clark.
2. Stomatal responses to changing
3. irradiance in Phaseolus vulgaris L. J. Exp. Bot.
4. : 931ââ‚‌“936.
5. Berenguer, M. J., and J. M. Faci. 2001.
6. Sorghum (Sorghum bicolor L. Moench) yield
7. compensation processes under different plant
8. densities and variable water supply. Eur. J.
9. Agron. 15: 43ââ‚‌“55.
10. Brigham, R. D., and B. R. Spears. 1960.
11. Castorbeans in Texas. Agric. Exp. Sta. B-954.
12. pp.
13. Cabuslay, G.S., Ito, O., Alejar, A.A., 2002.
14. Physiological evaluation of responses of rice
15. (Oriza sativa L.) to water deficit. Plant. Sci.
16. , 815-827.
17. Champolivier, L., and A. Merrien. 1996.
18. Effects of water stress applied at different
19. growth stages to Brassica napus L.var. oleifera
20. on yield, yield components and seed quality.
21. Eur. J Agron. 5: 153-160.
22. Duysen, M.E., Freeman, T.P., 1974. Effects of
23. moderate water deficits on wheat seedling
24. growth and plastid pigment development. Plant.
25. Physiol. 31, 262. 266.
26. Franc, M. G. C., A. T. P. Thi, C. Pimentel, R.
27. O. P. Rossiello, Y. Z.Fodil, and D.
28. Laffray.2006. differences in growth and water
29. relations among Phaseolus volgaris cultivars in
30. response to induced drought strerss. Env. Exp.
31. Bot. 43:227ââ‚‌“237.
32. Jazaeri Nushabadi, M.R., Rezaei, A.M., 2007.
33. Evaluation of relations between parameters in
34. oat cultivars in water stress and non- stress
35. conditions. Sci. and Met. Agri. and Nat. Sou.
36. (1), 265-278. (In Persian with English
37. summary).
38. Kanga, S., W, Shib. and J. Zhangc. 2000. An
39. improved water-use efficiency for maize grown
40. under regulated deficit irrigation. Field Crops
41. Res. 67: 207-214.
42. Kittock, D. L., J. H. Williams , and D. G.
43. Hanway. 1967. Castor bean yield xnd quality as
44. influenced by irrigation schedules and
45. fertilization rates. Agron. J. 59: 463-467.
46. Koutroubas, S.D., D.K. Papakosta, and A.
47. Doitsinis. 1999. Adaptation and yielding ability
48. of castor plant (Ricinus communis L.)
49. genotypes in a Mediterranean climate. Eur. J.
50. Agron. 11:227ââ‚‌“237.
51. Koutroubas, S. D., D. K. Papakosta, and A.
52. Doitsinis. 2000. Water requirements forcastor
53. oil crop (Ricinus communis L.) in a
54. Mediterranean climate. J. Agron. Crop Sci. 184:
55. -41.
56. Laureti, D., and G. Marras. 1995. Irrigation of
57. castor (Ricinus communis L.) in Italy. Eur. J.
58. Agron. 4: 229-235.
59. Laureti, D., A. M. Fedeli, G. M. Scarpa, and G.
60. F. Marras. 1998. Performance of castor (Ricinus
61. communis L.) cultivars in Italy. Indust. Crops
62. and Prod. J.7: 91-93.
63. Moosavifar, B. E., M. A. Behdani, M. Jami
64. Alahmadi and M. S. Hosaini Bojd. 2009. The
65. effect of irrigation disruption in different
66. reproductive growth stages on yield , yield
67. components and oil content in three spring
68. safflower cultivars. J. Agroecology. Vol. 1 No
69. : 41ââ‚‌“51.
70. parvaneh, v. 2008. Quality control and chemical
71. analysis of nutrients. Tehran University Press,
72. page 320.
73. Rezvani Moghaddam, J. Nabati, G. and A. A.
74. Mohammad Norozpoorabadi. 2005.
75. Investigation on morphological characteristics,
76. grain and oil yields of castor bean at different
77. plant densities and irrigation intervals. J.
78. Agron. Vol. 2. No 1: 1ââ‚‌“12.
79. Rezvani Moghaddam, P., Z. Bromand
80. Rezazadeh, A. A. Mohamad Abadi and A.
81. Sharif. 2009. Effects of sowing dates and
82. different fertilizers on yield , yiled components,
83. and oil percentage of castor bean (Ricinus
84. communis L.). J. Agron. Vol. 6. No 2: 303ââ‚‌“
86. Sepaskhah, A. R., and S. Ilampour. 1996.
87. Relationships between yield, crop water stress.
88. index (CWSI) and transpiration of cowpea
89. (Vigna sinesis L). Axron. Agric. Environ. 16:
90. -269.
91. Moosavifar, B. E., M. A. Behdani, M. Jami
92. Alahmadi and M. S. Hosaini Bojd. 2009. The
93. effect of irrigation disruption in different
94. reproductive growth stages on yield , yield
95. components and oil content in three spring
96. safflower cultivars. J. Agroecology. Vol. 1 No
97. : 41ââ‚‌“51.