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- Title
RESPONSE OF GROWTH, FLOWERING, CORM PRODUCTIVITY AND CHEMICAL CONSTITUENTS OF FREESIA REFRACTA CV. "RED LION" TO SOME NATURAL EXTRACTS.
- Authors
EL-SAYED, A.; EL-HANAFY, SAFIA H.; NABIH, A.; ATOWA, D. I.
- Abstract
This experimental trial was consummated on Freesia refractacv. "Red Lion" throughout two successive seasons (2009/2010 and 2010/2011) at the nursery of Horticulture Research Institute, Giza and Faculty of Agriculture, Cairo University, Egypt. It intended to study the response of the plant to two natural extracts (garlic extract at 250 and 500 ml/l and active dry yeast at 2.5 and 5 g/l) for improving plant quality and chemical constituents. The results indicated the prevalence of using yeast extract at 2.5 g/l for improving vegetative growth, most of flower parameters, corms and cormlet productivity. Meanwhile, using garlic extract at 500ml/l occupied the second rank in elevating number of cormlets/plot (cormlets yield) and fresh weight of cormlets. Treating plants with yeast extract at 5 g/l was the best for raising chlorophyll (a and b) in leaves. All treatments tended to increase carotenoids accumulation. Great influence was detected on chlorophyll (a) and carotenoids in leaves due to applying garlic extract at 500 ml/l, whereas using garlic extract at 250 ml/l or yeast 2.5 g/l was the best for raising total carbohydrate content. N, P and K contents in the leaves also increased as a result of applying yeast extract at 2.5 g/l. Meantime, total carbohydrate accumulation in the new formed corms increased due to using the different treatments. However, applying yeast extract at 2.5 g/l raised N and P% content in the leaves. Also, K% content in the new corms increased as a result of using garlic extract at either 250 or 500 ml/l. From the aforementioned results it could be recommended to use the low level of yeast extract (2.5 g/l) as well as the high one of garlic extract (500 ml/l) for improving Freesia refracta cv. "Red Lion" quality and chemical constituents.
- Subjects
FREESIAS; YEAST extract; PLANT growth
- Publication
Egyptian Journal of Agricultural Research, 2015, Vol 93, Issue 3, p289
- ISSN
1110-6336
- Publication type
Article