Moisture affects cowpea and okra seed emergence and growth at low temperatures.
1993
Marsh L.
The effect of moisture content on the emergence and development of 'Pinkeye Purple Hull' and MN 13 cowpea [Vigna unguiculata (L.) Walp.] and 'Clemson Spineless' okra [Abelmoschus esculentus (L.) Moench] seeds was investigated in a 3-year field study. Moisture content, ranging from 8% to 52%, was obtained by combining seeds, vermiculite, and varying volumes of water in sealed polyethylene packets and incubating them at 22C for 3 days. High moisture promoted the emergence of MN13, did not significantly affect that of 'Pinkeye Purple Hull', and decreased that of 'Clemson Spineless' seeds. Percent seed emergence 22 days after planting averaged 17% for 'Clemson Spineless' and 15% for 'Pinkeye Purple Hull' seeds, but was 44% for MN13. High moisture generally promoted early harvest of MN13 and increased root dry weight but did not affect freshpod yield significantly.
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