Study of regression relationships between irrigation period and Castor plant characteristics )Ricinus communis(

Subject Areas : New Finding in Agriculture

Ghanbar laei ¹ , Hossein afshari ² , Mehrdad Mohamadi ³

1 - دانشگاه آزاد اسلامی، واحد دامغان، گروه کشاورزی، دامغان، ایران
2 - دانشگاه آزاد اسلامی، واحد دامغان ، گروه کشاورزی، دامغان ، ایران.
3 - دانشگاه آزاد اسلامی، واحد ساری، گروه کشاورزی، ساری، ایران.

Received: 2015-12-02 Accepted : 2015-12-02 Published : 2010-10-23

Keywords: Irrigation, regression coeficient, castor,

Abstract :

     In order to study of regression coeficient for irrigation periods and traits of castor plants this fiels experiment was done in 2010 at Damghan Islamic Azad University research farms. The experiment model was randomized complete block design with three replications. Irrigation periods intervals were every 5, 10 and 15 days. Plant densities were 5 plants per square meter.After data harvesting we used from SAS statistical software and mean comparition was calculate by Duncan's multiple range test at  5%. the correlation coeficient between plant characteristics irrigation periods were stimated too. All traits studied showed significant differences for the period of irrigation and the highest yield and lowest yield in a period of 5 days of irrigation in the irrigation period was 15 days I attribute 15 percent oil and protein content in irrigation water during the 10 days had the highest. Attributes associated with the irrigation effect was linear (r =0/95**) and the correlation with oil yield significant and negative r=0.65*, % protein and significant and negative relationship was -0.85**Percent of the oil with the water cycle has a positive slope of the line that represents.  

References:

1- رضوانی مقدم، پ.، نباتی، ج.، نوروزپور، ق. و محمدآبادی، ع.ا. 1383. بررسی خصوصیات مورفولوژیک،‌ عملکرد دانه و روغن کرچک در تراکم های مختلف گیاهی و فواصل مختلف آبیاری، مجله پژوهش های زراعی ایران12-1:(1)2 .

2- رضوانیمقدم، پ.،برومند، ر.، زینت محمدآبادی، ع. ا. و شریف، ع. 1387. اثر تاریخ کاشت و تیمارهای مختلف کودی بر عملکرد، اجزای عملکرد و درصد روغن دانه گیاه کرچک، مجله پژوهش های زراعی ایران، جلد 6، شماره2 .

3- ناصری، ف. 1375.دانه های روغنی ، ترجمه، موسسه چاپ و انتشارات آستان قدس رضوی.

4- موسوی فر، ا.، علیبهدانی، م.،جامیالاحمدی، م.  وسعیدحسینیبجد، م. 1388. اثر قطع آبیاری در مراحل مختلف رشد زایشی بر عملکرد، اجزای عملکرد و روغن سه رقم گلرنگ بهاره نشریه بوم شناسی کشاورزی جلد 1، شماره 1، ص.51.

5- Barradas,V. L., Jones, H. G. and Clark, J. A. 1994. Stomatal responses to changing irradiance in Phaseolus vulgaris L. J. Exp. Bot. 45: 931–936.

6- Berenguer, M. J. and Faci, J. M. 2001. Sorghum (Sorghum bicolor L. Moench) yield compensation processes under different plant densities and variable water supply. Eur. J.  Agron. 15: x3–55.      

7- Brigham, R. D. and Spears, B. R. 1960. Castorbeans in Texas. Agric. Exp. Sta. B-954. 12pp.

8- Cabuslay, G. S., Ito, O. and Alejar, A. A. 2002. Physiological evaluation of responses of rice (Oriza sativa L.) to water deficit. Plant. Sci. 163, 815-827.

9- Champolivier, L. and Merrien, A. 1996. Effects of water stress applied at different growth stages to Brassica napus L.var. oleifera on yield, yield components and seed quality. Eur. J Agron. 5: 153-160..

10- Duysen, M. E. and Freeman, T. P. 1974. Effects of moderate water deficits on wheat seedling growth and plastid pigment development. Plant. Physiol. 31, 262. 266.

11- Franc, M. G. C., Thi, A. T. P., Pimentel, C., P. Rossiello, R. O., fodil, Y. Z. and Laffray, D. 2006. differences in growth and water relations among Phaseolus volgaris cultivars in response to induced drought strerss. Env. Exp. Bxt. 43:227–237.

12- Jazaeri Nushabadi, M. R. and Rezaei, A. M.  2007. Evaluation of relations between parameters in oat cultivars in water stress and non- stress conditions. Sci. and Met. Agri. and Nat. Sou. 11(1), 265-278. (In Persian with English summary).

13- Kanga, S., Shib, W. and Zhangc, J. 2000. An improved water-use efficiency for maize grown under regulated deficit irrigation. Field Crops Res. 67: 207-214.

14- Kittock, D. L., Williams, J. H. and Hanway, D. G. 1967. Castor bean yield xnd quality as influenced by irrigation schedules and fertilization rates. Agron. J. 59: 463-467.

15- Koutroubas, S. D., Papakosta, D.K. and Doitsinis, A. 1999. Adaptation and yielding ability of castor plant (Ricinus communis L.) genotypes in a Mediterranean climate. Eur. J. Agron. 11:227–237.

16- Koutooubas, S. D., Papakosta, D. K. and Doitsinis, A. 2000. Water requirements forcastor oil crop (Ricinus communis L.) in a Mediterranean climate. J. Agron. Crop Sci. 184: 33-41.

17- Laureti, D. and Marras, G. 1995. Irrigation of castor (Ricinus communis L.) in Italy. Eur. J. Agron. 4: 229-235.  

18- Laureti, D., Fedeli, A. M., Scarpa, G. M. and Marras, G. F. 1998. Performance of castor (Ricinus communis L.) cultivars in Italy. Indust. Crops and Prod. J.7: 91-93.

19- Sepaskhah, A. R. and  Ilampour, S. 1996. Relationships between yield, crop water stress. index (CWSI) and transpiration of cowpea (Vigna sinesis L). Axron. Agric. Environ. 16: 269-269.