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|Title: ||A survey and effect of methods of establishment and spacing on the growth and leaf yield of roselle (hibiscus sabdariffa)|
|Authors: ||Obodai, Grace A.|
|Issue Date: ||4-Aug-2007|
|Abstract: ||A survey and two field experiments ( rainy and dry seasons) were conducted on the effect of three methods of establishment (spot sowing, drilling, transplanting) and three spacings (30 × 30 cm; 40 × 35 cm and 45 × 45 cm) on the growth and leaf yield of roselle (Hibiscus sabdariffa).
The survey results showed that more women were involved in the production and retail trade of roselle than men. The main problem of these women is the short storage period of the vegetable.
The results also showed roselle to be a low input crop though a beneficial one. Its use is also popular in the Upper East Region of Ghana.
Results from the field experiments showed that all growth parameters studied: plant height, stem girth, canopy spread, number of branches, leaf number and leaf area were significantly (P < 0.05) affected by method of establishment in both seasons. Spacing significantly affected canopy spread in the rainy season. The interactions showed significance (P < 0.05) only in the rainy season.
With the yield components there was a significant difference (P < 0.05) between the seasons for only the drilled plants. The drilled plants in the rainy season produced significantly (P < 0.05) higher yields than those of the dry season. The drilled plants produced higher yields per hectare in the rainy season than the spot sown plants.
The 30 × 30 cm and 40 × 35 cm spaced plants produced significantly higher yields per hectare than the 45 × 45 cm spaced plants.
Edible to non-edible ratio generally decreased with subsequent harvests. Methods of establishment and spacing did not show any significant differences among the mean edible to non-edible ratio. However the transplants produced persistently highest leaf to stem ratio of all the treatments in the dry season.
Results of the nutrient analysis showed no significant differences between the first and last harvests of both seasons.|
|Description: ||A Thesis submitted to the Department of Horticulture,
Kwame Nkrumah University of Science and Technology
In partial fulfillment of the requirements for the Degree of Master of Science
|Appears in Collections:||College of Agric and Natural Resources|
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