Agriculture Reference
In-Depth Information
FIGURE 5.9
Weekly mean values of pan evaporation during the study period.
[
Initiation
(up to 20 days-30 days) - February-March, vulnerable to
temperature and moisture dynamics;
Lag phase
30-40 days March-April;
vulnerable to high temperatures; low RH; moisture dynamics and under
hormonal interpolations; fruit borer; preharvest fruit drop;
Grand growth
phase
40-70 days April-May vulnerable to hormonal interpolations;
nutrients and water dynamics; fruit fly; preharvest fruit drop; shoulder
browning if exposed to rainfall; consolidation of fruit quality principles
Climacteric
70-80 days Mid June Mid July; high temperature effects on
fruit size and quality; harvest maturity; jelly seed formation, exposure to
rainfall; Senescence 80 days onwards high temperature effects; concen-
trated maturity; market gluts; exposure to rain fall; reduced profitability].
Fruits approaching maturity are greatly affected by high temperatures
exceeding 35 °C as it happened in the Konkan region (day temperatures
peaking to 40 °C and beyond in May) during 2010 fruiting season where
crores worth '
Alphonso
' mangoes was lost while in 2011 fruiting season in
Malihabad area of Lucknow witnessed sharp focused maturity and market
gluts during the third week of June when the day temperatures peaked to
43 °C, a sudden increase of 2 °C over the previous week in a short span of
a week's time.
