1Member of Young Research Club of Islamic Azad University of Rasht Branch, University of Agriculture and Natural Resource of Sari, Khazar Abad Road - P.O. Box. 578, Sari, Iran.
2Agronomy and Plant Breeding Department, University of Agricultural and Natural Resource of Sari, Khazar Abad Road - P.O. Box. 578, Sari, Iran.
3Soil Science Department, University of Agriculture and Natural Resource of Sari, Khazar Abad Road, P.O. Box. 578, Sari, Iran.
4Scientific Member of Islamic Azad University of Rasht Branch, Golsar, P.O. Box 41335-3516, Rasht, Iran.
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Zinc is an element required for growth and reproduction of plants. In order to investigation the effects of rates and application forms of Zn on some agronomical traits of bean, a greenhouse experiment was conducted as a factorial based on completely randomized design with 4 replications. Experiment was carried out at the university of Agriculture and Natural Resource of Sari in north of Iran during 2006. Treatments were included zinc rates in 4 levels (10, 20, 30 and 40 mg kg−1 soli) and application forms in 3 levels (soli application, seed pelletlng and foliar spraying). Results showed that Zn application forms and rates had a significant effect on some traits such as grain yield and pod number. Grain yield was increased when soli zinc levels increased, and among application forms levels, the seed pelleting had the highest grain weight. The highest pod number was obtained in 20 to 40 mg kg−1 soli levels. In this experiment, pod length and total shoot number per plant, leaf number per plant and total dry matter were not significantly affected by all application treatments.
Zn, Phaseolus vulgaris, application forms, yield and pod number
