RESPONSE OF ONION PLANTS TO SOME SAFETY TREATMENTS IN THE FIELD. | ||
| Menoufia Journal of Plant Production | ||
| Article 8, Volume 3, Issue 1, January and February 2018, Pages 135-136 PDF (380.12 K) | ||
| Document Type: original papers | ||
| DOI: 10.21608/mjppf.2018.175374 | ||
| Authors | ||
| A. Midan; M.A. Fattah Allah; Sally A. Midan | ||
| Prof. of Vegetable crops, Fac. of Agric., Menoufia Univ. | ||
| Abstract | ||
| The present experiments included six treatments the were randomly arranged using the complete randomized design with four replicates. Mycorrhiza achieved the best records of plant height and leaves and neck fresh weight. Seaweed, mycorrhiza and magnetic water irrigation attained the records of number of leaves. Plant received mycorrhiza followed by those received magnetic water irrigation gained, in general bulb dry weight. As for growth analysis attributes, all of the applied treatments, excepting organic manure at the first period, positively affected leaf area and leaf area index. As for chemical constituents, all applied treatments unsignificantly increased P and K contents. Significant positive correlations were, generally, observed between chlorophyll fractions and the tested treatments. The correlation between of the tested treatments and the accumulation of different biochemical active compounds within treated onion such as ploy phenols, peroxidases and cinamic acid substrates were investigated through using HPLC apparatus. The results showed that the highest recorded growth and vegetative criteria were observed on plants treated with mycorrhiza fungi followed by magnetized water. On contrary, the lowest growth and vegetative values were recorded by organic fertilizers and traditional recommend fertilizers. Biochemical analysis using HPLC revealed that cinamic acid substrate was detected only within treated plants by sea weeds extracts, humic acid and recommended mineral fertilizers. The highest accumulation of peroxidase enzyme was observed with mycorrhiza and sea weeds treatments. The results showed also that mycorrhiza fungi, sea weeds extracts, organic fertilizers in addition to recommend mono fertilizers increased the accumulation of poly phenols substrates more than all other tested treatments. As for bulbs yield and yield components, all applied treatments failed to achieve any significant effect on both bulbs diameter or length. As for the total yield, mycorrhiza followed by magnetic water achieved the highest record in the connection as seaweed occupied the third position. As for bulbs storageability, excepting for magnetized water and humic acid, which reduced weight loss in all assessing dates, all applied treatments caused, in general, an increase in this storage attribute. | ||
| Keywords | ||
| Onion; Mycorrhyza- magnetized water- seaweds extracts; humic acid | ||
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