ISHS Acta Horticulturae 318: II International Symposium on Specialty and Exotic Vegetable Crops
GUAR CULTIVAR RESPONSES TO NITROGEN FERTILIZER RATES ON OOLITIC CALCAREOUS SOILS AND DISEASE INCIDENCE IN SOUTH FLORIDA |
| Authors: | H.H. Bryan, K.R. Narayanan, R.T. McMillan Jr |
| Abstract:
Guar (Cyamopsis tetragonaloba (L.) Taub), grown predominantly in India and Pakistan, is produced in Texas and Oklahoma, USA for seed. It is tolerant to a variety of climates and soil conditions, and is grown throughout India as a fresh vegetable. The Asian population familiar with guar as a vegetable, exceeds several thousand in the vicinity of Miami, thus a potential market for guar as a vegetable, exists. Evaluations in 1987 showed that yields were not significantly affected by nitrogen (N) rates of 22, 66, and 110 kg ha-1. Yields of cv. 'Lewis' were superior to 'Esser', 'Brooks', 'Kinman', 'Santa Cruz', and 'Hall'. In the fall of 1991, 'Lewis', 'Esser', 'Brooks', and 'Kinman' treated with N rates of 66, 132 and 198 kg ha-1 grew poorly apparently due to short day length effects in cultivars reported to have day-neutral flowering habits. Throughout production areas, guar has potential as a cover crop and improves soils which are low in organic and nutrient contents. | |
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