Effect of a bioactive chitosan polymer with different molecular weights on seedling growth of wheat (Triticum aestivum)‎, barley (Hordeum vulgare)‎, corn (Zea mays)‎ and lentil (Lens culinaris)‎

الملخص EN

The effects of chïtosan molecular weight and its concentrations on growth vigour of wheat {Triticum aesiivum), barley {Hordeum vulgare), com {Zea mays) and lentil {Lens culinaris) sprouts were investigated.

Plant seeds wer^e germinated in !٠٠, 250 and 500 mg/L of three molecular weights (3.

60 X 105, è.llxio5 and 9.

53 * 105 g / mol) chitosan for 8 days using aNeubauer technique.

Traditional growth and potential vigour-associated parameters (protein, phenolics, chlorophyll and polyphenol oxidase) were investigated in details.

Chitosan freatments significantly enhanced sprout growth to varying degrees over controls.

Protein content in wheat and barley was gradually increased with an increase in the molecular weight and the concentration.

Whereas, a chitosan of 3.

60*10 ; g / mol was most significantly effective at 500 mg / L in com and lentil.

In addition, total phenolics were high accumulated increased gradually in the tested plants with an increase in the molecular weight and the concentration.

On the other hand, chlorophyll and polyphenol oxidase levels ^ ere significantly decreased