PRODUCTIVITY AND ASSOCIATION OF TWO CANOLA VARIETIES UNDER SOME DRIPP IRRIGATION LEVELS. | ||||
| Journal of Plant Production | ||||
| Article 1, Volume 28, Issue 1, January 2003, Page 1-10 PDF (2.97 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2003.241851 | ||||
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| Authors | ||||
| Salwa E. Soliman,1; Mona A. M. Soliman2 | ||||
| 1Agronomy Dept., Fac. Of Agric., Cairo Univ., Giza, Egypt | ||||
| 2Water relation & field irrigation Dep., N.R.C., Giza, Egypt. | ||||
| Abstract | ||||
| Two field experiments were conducted in a new desert reclaimed area, on canola (Brassica napus L.), under a drip irrigation system, during 1997/1998 and 1998/1999 seasons', to study the effect of three irrigation levels, Viz. 280.02 (h), 560.04(12) and 1120.08(b) m3/fed., on yield and some yield attributes of AD 201 (V1) and B.P .S. Tower (V2) varieties. A split plot design with three replicates was used, where irrigation levels occupied the main plots, while the sub-plots were devoted to the two varieties. Water use efficiency (W.U.E) was calculated fer all combination treatments. Correlation, stepwise and path coefficients analysis were performed. The obtained results, in both seasons, revealed that significant increases due to irrigation varying from 11 to 12 were seen with all traits, Then after the increases were insignificant, except with respect seed yic:ld/fed., where the highest value were detected on 12 (427.0 Kg/fed.) and la (510.0 Kg/fed.) in the first and second seasons, respectively. The two varieties did not significantly vary to each other with respect to seed yield/fed. and some other traits, while AD 201 surpassed B.P.S. Tower with all traits. Interaction effect was insignificant with all respects except number of silique/plant in the second season. The combinations (12 X V1) and (13 X V1) gave the pronounced seed yield / fed. in the first season, i.e. 534.0 Kg/fed. and 616.0 kg/fed. in the second season. Water use efficiency was greater in the second season. The combination of (12 X V1) produced the highest W.U.E. values, Viz. 0.65 and 0.68 Kg/m3 in the first and the second seasons, respectively. All traits were positively and significantly correlated to each other. Stepwise analysis indicated that number of silique/plant and 1000 seed weight were the most traits in the predictions equation. Path coefficient analysis declared that the previous two traits directly, indirectly and totally relative contribution were 53.39, 16.25 and 69.64 % for number of silique per plant and 2.75,0.51 and 3.26 % for 1000 seed weight, respectively. | ||||
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