Influence of some natural substances on caraway plants

Document Type : Original Articles

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Horticulture Department, Faculty of Agriculture, Minia University

Abstract

Our study was conducted during the twice successive growth seasons of 2019/2020 and 2020/2021 in the farm of Agricultural Experiment and Research Center, Minia University at Shosha, West Samalout City, to examine the effects of sheep manure (0.0, 2.5, 5.0 and 7.5 ton/fed.), some vitamins (vit. B1 and vit. E, each at 25 and 50 ppm) and active yeast (5.0 and 10 g/l), as well as, their interaction on caraway plants.
The findings revealed that all test parameter of plant height, number of branches/plant, umbels number/plant, fruit yield per plant and per fed., essential oil %, essential oil yield per plant and per fed. and photosynthetic pigments were significantly augmented by use sheep manure treatments. Generally, sheep manure at 7.5 ton/fed. was more effective than other treatments. Also, all used six treatments of some vitamins (vit. B1 and vit. E, each at twenty five and fifty ppm) and dry yeast (5.0 and 10 g/l) led to significant enhancement of all previous parameters relatively to control. Vitamin B1 at 50 ppm was superior than other treatments. The best interaction treatments were recorded with plants received 7.5 or 5.0 ton/fed, sheep manure and sprayed with vit. B1, followed by vit. E, then active yeast, each at the high concentration.

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