TY  - BOOK
AU  -  Kavitha S 
AU  - Kesava Rao A V R (Guide)
TI  - Crop weather relationship in Okra
U1  - 630.251 
PY  - 1999///
CY  - Vellanikkara
PB  - Department of Agricultural Meteorology, College of Horticulture
N2  - CROP WEATHER RELATIONSllP IN OKRA (Abelmoschus esculentus [L.} 
Moench), VARIETY 'ARKA ANAMIKA' 
The experiment was conducted during 1998-1999 at the College of 
Horticulture, Vellanikkara to find out the crop weather relationships of okra, 'Arka 
Anamika'. The experiment was laid out in randomised block design with three 
replications. The treatments consisted of twelve monthly sowing, starting from 21 st 
April 1998 to 21 st March 1999. 
Observations on morphological, phenological and yield attributes were 
recorded during the course of investigation. The daily values of weather elements 
viz., rainfall, number of rainy days, maximum and minimum surface air 
temperatures. bright sunshine, mormng and afternoon relative humidity, pan 
evaporation and wind speed were collected from the Principal Agricultural 
Meteorological Station, College of Horticulture, Vellanikkara, to work out the crop 
weather relationships of okra. 
March, April and September sown crops were significantly superior in 
terms of fruit yield per plant, number of harvests and crop duration. April sown crop 
was also superior in plant height, number of nodes on mainstem, and number of 
primary branches. 
The fruit yield was significantly associated with the plant height, number 
of nodes on main stem, number of primary branches, number of harvests and 
duration of the crop. 
A multiple regression equation was worked out for predicting fruit yield 
based on plant characters and it is as follows: 
 
Y = 3.08 XI + 11.15 X2 - 210.14 (R2 = 0.94) 
Where, XI is the duration of the erop in days, X2 is the number of harvests and Y is 
the yield per plant (g). 
Based on the association between weather elements and crop yield of 
okra, a multiple regression equation was worked out and given below: 
Y = 50.7 XI - 28.69 X2 + 16.11 X3 - 0.058 X4 - 456.29 (R2 = 0.76) 
Where, Y = yield per plant (g), X, - Minimum temperature (OC) during vegetative 
phase (6,h to 7th week after sowing), X2 - Maximum temperature (OC) during 
reproductive phase (6th to 9th week after sowing), X3 - Bright sunshine (h per day) 
during vegetative phase (4th to 6th week after sowing) and X.4 - Rainfall (mm) during 
vegetative phase (5th to 6th week after sowing). 


UR  - https://krishikosh.egranth.ac.in/handle/1/5810155026
ER  -