Summary
Forty strains of mungbeans, including all of the entries in the 1st and 2nd International Mungbean Nurseries (IMN), were grown in plant growth chambers in photoperiods of 12, 13, 14, 15, and 16 hours and mean temperatures of 18, 23, and 28°C. Results show that (1) mungbean strains differ in their flowering response to photoperiod and to mean temperature; (2) increasing the photoperiod of reducing the mean temperature delayed flowering, the amount of delay varied with the strain: (3) variations in mean temperature may alter the effect of the photoperiod on flowering in particular strains. Twenty-five strains which flowered in all photoperiod-temperature treatments could be divided into four groups, each group being successively later in flowering. The remaining 15 strains could be divided into four groups, according to their failure to flower within 105 days in specific photoperiod-temperature treatments. Flowering response in the growth chamber is useful in explaining flowering response in the 2nd IMN at three locations varying from 14°N to 49°N latitude.
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Contribution No 7516 from the Missouri Agricultural Experiment Station.
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Vas Aggarwal, D., Poehlman, J. Effects of photoperiod and temperature on flowering in mungbean (Vigna radiata (L.) Wilczek). Euphytica 26, 207–219 (1977). https://doi.org/10.1007/BF00032086
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DOI: https://doi.org/10.1007/BF00032086