TITLE

PREDICTING THE POTENTIAL MAXIMUM YIELD OF MUNGBEAN [VIGNA RADIATA (L) WILCZEK] AT DIFFERENT SOWING DATES IN A RAIN FOREST LOCATION OF SOUTHEASTERN NIGERIA

AUTHOR(S)
Agugo, B. A. C.; Chukwu, G. O.
PUB. DATE
October 2009
SOURCE
Electronic Journal of Environmental, Agricultural & Food Chemist;Oct2009, Vol. 8 Issue 9, p730
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The agro-ecological zone method was used to estimate the potential maximum grain (Ymp) yield of mungbean in Umudike- a rain forest zone of southeastern Nigeria. A mean potential maximum yield of 3.5 t/ha with a range from 3.2 t/ha in August-October to 3.8t/ha in April-June periods of cultivation. The yield value has a direct relationship with the insolation regime of the region. It is found that the highest mean daily irradiance of 421 cal/cm²/day during April-June in Umudike resulted in only 60% of the productivity of midsummer crop. The average daily temperature of 27°C is somewhat higher than the optimum requirement of C3 plants, thus adversely affecting productivity. We conclude that the average potential maximum yield obtained in the region is encouraging. It is recommended that field experiments be carried out in order to validate results of this model simulation on yield.
ACCESSION #
46816088

 

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