EFFECT OF SOME AGRICULTURAL TREATMENTS ON SEED PRODUCTION AND QUALITY OF COWPEA | ||||
| Journal of Plant Production | ||||
| Article 27, Volume 29, Issue 12, December 2004, Page 7363-7384 PDF (5.6 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2004.238968 | ||||
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| Author | ||||
| F. M. M. EI-Assiouty, | ||||
| Vegetable Res. Dept., Hort. Res. Inst., Agric. Res. Center | ||||
| Abstract | ||||
| Tow field trials were conducted at Vegetable Research Farm of Horticultural Research Institute, Kaha, Kaluobia Governorate during two successive summer seasons of 2001 and 2002 to study the effect of plant spacing (10, 20 and 30 cm) and foliar application with potassium (0, 1, 2, 3 cm/l) on growth, seed yield and quality of cowpea cultivars i.e. Kafr EI-Sheikh (1) and Kaha (1). Obtained results could be summarized as follow: 1- Kafr EI-Sheikh (1) cv. surpassed Kaha (1) cv. in all measurement growth characters, i.e. plant height, number of branches and leaves, leaf area, fresh and dry weight of plants, also in seed yield and its components expressed as number and weight of pods, number of seeds per pod, 100-seed weight (seed index), seed yield per plant and per feddan, produced 35.2 and 39.6% seed yield more than the other cultivar in the two seasons, respectively and gave the highest values of germination (%), seedling length and protein (%) in dry seed. 2- All vegetative growth traits recorded higher values in wider spacing 20 or 30 cm except plant height which was maximum under closer spacing (10 ern). Also, all seed yield components characters were enhanced with increasing plant spacing except seed yieldlfeddan which was maximum under narrow spacing, as well as, seed quality characters except germination speed recorded higher values under wider spacing compared to closer spacing. 3- Spraying cowpea plants with potassium increased plant growth characters, seed yield and its components, germination percentage. seedling length and protein (%) in seed. Using potassium at (2 cm/l) was the most effective treatment for all studied characters. 4- Interaction effect of cultivars, plant spacing and potassium were differed for all studied characteristics. In general, it may be recommended to grow the used cultivars under closer spacing (10 ern) and spraying plants with foliar application of potassium at (2 cm/l) to obtain the highest seed yieldlfeddan as well as seed quality .. | ||||
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