Standard time-yield curves which fit closely the observed data were worked out using equation
Y = A
1 + B (X- C)2 Optimum harvesting dates for 2-B
Bushy pigeon pea can be determined from the percentage of canning size peas of samples drawn using the standard time-yield curves or directly from tables prepared from them. Canned samples collected at the optimum harvesting date according to the curves were always of an A or B quality grade.
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