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VOL. 5, ISSUE 2 (2023)
Study of correlation between weather parameters and different growth stages of Kharif maize (Zea mays L.) with grain yield
Authors
Rahul R Vikhe, Rohit B Umbarkar, Ravindra A Daspute
Abstract
In order to investigate the Study of correlation between weather
parameter and different growth stages of kharif maize(Zea mays
L.) with grain yield a one-year field experiment was conducted at PGI, an
experimental farm of All India Co-ordinated Research Project on Safflower,
VNMKV, Parbhani, during the Kharif season of 2015-16. A field experiment
was conducted with the objective of worked out the correlation between maize hybrids
and weather parameters. The experiment design was a split-plot design with
three replications. Main plots consisted of three sowing dates and subplots
were also allocated four different varieties viz. (900M Gold, Rajsri,
NK-6240, and DKC-9133). The meteorological parameters (abiotic factor) play an
essential role in deciding the success or failure of the crop because these
factors strongly influence the physiological expression of the genetic
potential of the crops, hence this study was undertaken. The correlation study
was carried out between weather variables prevailed during P1 to P6
growth stages of different hybrids under different sowing dates. Correlation
between weather parameter and phenophases of maize with grain yield showed that
the weather parameters like rainfall and rainy day, temperature, relative
humidity and bright sunshine hour have significant effects on critical growth
stages. Correlation between weather parameters and growth stages of maize with
grain yield was worked out. Rainfall and rainy days were found significantly
positively correlated at P5 (0.702*), (0.656*)
and significantly negatively correlated at P2 (-0.629*),
(-0.635*), respectively. Tmax and Tmin were found significantly positively correlated at P2 (0.600*)
and (0.611*), respectively, while Tmax was
found significantly negatively correlated at P5 (-0.655*)
and P6 (-0.612*) and Tmin was found
significantly positively correlated at P5 (0.645*) and P6
(0.603*). RH-I was found significantly negatively correlated
at P2 (-0.605*) and significantly positively correlated
at P5 (0.647*). RH-II was found significantly negatively
correlated at P2 (-0.590*) and significantly positively
correlated at P5 (0.579*) and P6 (0.611*).
Evaporation was found significantly positively correlated at P2 (0.604*)
and significantly negatively correlated at P6 (-0.619*).
Bright sunshine hours was found significantly positively correlated at P1 (0.596*)
and significantly negatively correlated at P6 (-0.597*).
Wind velocity was found significantly positively correlated at P2
(0.614*) and P5 (0.668*).
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Pages:47-53
How to cite this article:
Rahul R Vikhe, Rohit B Umbarkar, Ravindra A Daspute "Study of correlation between weather parameters and different growth stages of <i>Kharif </i>maize (<i>Zea mays</i> L.) with grain yield". International Journal of Agriculture and Plant Science, Vol 5, Issue 2, 2023, Pages 47-53
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