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|Title: ||Effect of plant density and certain pesticides on growth, yield and rhizobial nodulation of faba bean (Vida Faba L.)|
|Authors: ||Al-Abdulsalam, M.A.|
|Keywords: ||Plant density|
Vida faba L.
|Issue Date: ||1995 |
|Publisher: ||King Saud University|
|Citation: ||Journal of King Saud University, Agricultural Sciences: 7 (2); 249-257|
|Abstract: ||The effect of three plant densities (50, 75 and 100 plants/m2) and five pesticides (bavastin WP 50%, rhizolex WP 50%, primor WP 50%, dimethoate EC 40% and nabu EC20%) on plant growth, nodulation and acetylene-reduction activity was studied for two seasons. Seed yield/plant and the number of pods/plant decreased as plant density increased. However, the increase in plant density increased total yield per plot in both seasons. The increase in seed yield/plant was largely associated with a decrease in WO-seed weight of the lower density. Number of nodules/plant and the dry weight of nodules for the 50 plants/m2 treatment was higher than those of other treatments in both years. The yield was decreased by the use of the fungicides bavastin and rhizolex. Seed weight, number of pods/plant and seeds/pod were increased as a result of the nabu treatment. However, the treatments with rhizolex, bavastin and dimethoate caused a reduction in 100 seed weight, as compared to the control. The number of seeds per pod was not affected by primor and dimethoate, while it decreased with bavastin and rhizolex. The number of nodules and dry weight of nodules, shoots and roots were reduced as a result of pesticide treat-ments. Acetylene - reduction activity was decreased when bavastin, rhizolex and nabu were applied in first year and increased with the use of the insecticides primor and dimethoate in the second season. The level of acetylene reduction activity in nodules obtained from plants treated with nabu was lower than those of all other treatments in both seasons.|
|Appears in Collections:||Journal of the King Saud University - Agricultural Sciences|
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