RESPONSE Of LEITUCE TO SOME GROWTH REGULATORS AND BIOFERTELIZIRS· UNDER SALINE CONDATIONS | ||
| Journal of Plant Production | ||
| Article 24, Volume 27, Issue 8, August 2002, Pages 5539-5548 PDF (1.24 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2002.256270 | ||
| Author | ||
| Eslah M. M. EI-Hefney, | ||
| Desert Research Center | ||
| Abstract | ||
| Two field experiments were performed in Ras Suder to investigate the effect of GA3 at concentrations of 50 , 100 and 150 mg.l L, 1M at cone, of 25 , 50 and 75 mg./ Land Uniconazole at conc. of 5, 10 and 15 mg.l L. Also to study the effect of biofertelizers ( Azotobacters and Azospirilla) in addition to control treatment on growth , yield ,K and Na content of Balady and Ice Berg cultivars of lettuce. Seedlings were dipped in treatments before transplanting. Obtained results revealed that Ice Berg cultivar surpassed than Balady cultivar in number of leaves and minerals composition. While Bafady cultivar enhanced than Ice Berg in plant height, the percentage of humidity, plant weight and the yield of lettuce per feddan. The application of 1M or uniconazole !eatments at low concentrations or Azotobacter on lettuce plants show significanlly the highest no. of leaves per plant, plant weight as well as yield of lettuce per feddan. While the highest plants produced with GA3 treatment with concentration of 150 mg.l L. On the other hand uniconazole or Azotobacter treatments show the high percent of humidity in lettuce . Na content decreased with increasing GA3 and uniconazole concentrations, also the low concentration of 1M or biofertilizer treatments decreased Na content in lettuce. . The content of K in lettuce plants increased with increasing GA3 and . uniconazole concentrations, while K increased in plants with low concentration of 1M. 'Also biofertilizers application increased K content in lettuce plants. | ||
| Keywords | ||
| Lettuce; Saline conditions; growth regulators; Biofertilizers | ||
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