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Effect of cultivar, Potassium soil fertilization and Zinc spraying on some parameters and yield of Rice | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 6, Issue 4, 2006, Pages 53-59 PDF (0 K) | ||
| Authors | ||
| A. W. Al- Abood; A. O. Hajeri; T. K. Merza | ||
| Abstract | ||
| Abstract An experiment was conducted at Al- Mishkhab Rice Research Station for growing season of 2001. The aim was to study the effect of three cultivars of Rice, viz. (Al- Somood, Yasmin and Al- Bernamag 4) and Fertilization levels (Soil application by K as K2SO4 and foliar application by Zn as ZnSO4.7H2O), 8 treatments were used: 1. Control: with out any fertilization. Neither K nor Zn application. 2. K as K2SO4 at rate of 30 Kg D. 3. 0.5 Zn as ZnSO4.7H2O. (0.5 g L. water). 4. 0.5 Zn + K. 5. 1.0 Zn at conc. of (1.0 g L. water). 6. 1.0 Zn + K. 7. 1.5 Zn at conc. of (0.5 g L. water). 8. 1.5 Zn + K. A factorial experiment was used with two factors. Treatments were spread as Randomized Complete Block Design (R.C.B.D.) with three replicates. Duncan's Multiple Range Test was used to compare means at probability levels of 5%. Experiment was included studying six chemical components in leaves, i. e. chlorophyll a and b, proline, carbohydrates, potassium and zinc, besides, the weight of 1000 seeds and productivity. Results can be summarized as fellows:- 1. The best fertilizer combination for K and Zn, when K adopted into the soil at a rate of 30 Kg D. and Zn sprayed at a conc. of (1.0 and 1.5 g L. water). These combinations produced the highest values for leaves chemical components of plant cultivars, except (Zn 1.0) that produced the highest praline content. 2. Chlorophyll a and b; Potassium and Zinc contents had no significant effects by cultivars. Meanwhile, Yasmin and Al- Somood cvs. produced the highest contents of proline and carbohydrates, respectively. Al- Somood cv. also produced the highest weight of 1000 seeds and productivity reached (1496.35 Kg D). 3. The interaction between Al- Somood cv. And fertilization by K and spraying by Zn. at conc. of (1.0 g L.) produced the highest productivity (1745.0 Kg D.). The productivity for the three cvs. with fertilization levels ranged K+Zn 1.0, Zn 1.5 and K+Zn 1.5 produced the highest productivity and the interactions between the cultivars and these three fertilization levels were insignificant | ||
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