The variations in the rainfall (mm), minimum
and maximum temperatures (°C), minimum and
maximum relative humidity (%), wind speed (km/h),
solar radiation (MJ/m/day), mean temperature (°C),
mean relative humidity and solar radiation for the
period of experiments are shown in Figure 1. Total
rainfall in 2007 and 2008 was 1350 and 1247 mm,
respectively, as compared to the average of 1271 mm
for a ten-year period (1997–2007) recorded at the
site. Hence, the rainfall condition in 2007 was well
above 10 years average while that in 2008 was below
the average. A total of 872 and 795 mm of rainfall
were recorded in 2006/07 and 2007/08 for the
nine months of experimentation (i.e. 270 days after
planting – DAP). Mean daily maximum temperatures
ranged from 28 to 36°C and 26 to 35°C while
minimum temperatures ranged from 15 to 24°C
and 16 to 23°C, respectively, for the two cropping
seasons. The highest maximum temperature was
recorded in March for 2006/07 and 2007/08 cropping
seasons, whereas the lowest minimum temperature
was experienced in December for the two cropping
seasons. The mean daily solar radiation for the two
cropping seasons varied from 4 to 21 MJ/m2/day
and 3 to 19 MJ/m2/day. The maximum daily relative
humidity ranged from 55 to 100% and 67 to 100%
while the minimum daily relative humidity ranged
from 18 to 78% and 15 to 79%, respectively, for
The variations in the rainfall (mm), minimumand maximum temperatures (°C), minimum andmaximum relative humidity (%), wind speed (km/h),solar radiation (MJ/m/day), mean temperature (°C),mean relative humidity and solar radiation for theperiod of experiments are shown in Figure 1. Totalrainfall in 2007 and 2008 was 1350 and 1247 mm,respectively, as compared to the average of 1271 mmfor a ten-year period (1997–2007) recorded at thesite. Hence, the rainfall condition in 2007 was wellabove 10 years average while that in 2008 was belowthe average. A total of 872 and 795 mm of rainfallwere recorded in 2006/07 and 2007/08 for thenine months of experimentation (i.e. 270 days afterplanting – DAP). Mean daily maximum temperaturesranged from 28 to 36°C and 26 to 35°C whileminimum temperatures ranged from 15 to 24°Cand 16 to 23°C, respectively, for the two croppingseasons. The highest maximum temperature wasrecorded in March for 2006/07 and 2007/08 croppingseasons, whereas the lowest minimum temperaturewas experienced in December for the two croppingseasons. The mean daily solar radiation for the twocropping seasons varied from 4 to 21 MJ/m2/dayand 3 to 19 MJ/m2/day. The maximum daily relativehumidity ranged from 55 to 100% and 67 to 100%while the minimum daily relative humidity rangedfrom 18 to 78% and 15 to 79%, respectively, for
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