Answer:
(i
Kharif crop is grown during the month from June to October.
(1)
(ii) Four factors for which crop variety improvement is done are
(a) Higher yield To increase productivity of crop
per
(b) Improved quality The definition of quality is different
for different crops, e.g., baking quality is important in wheat, protein
quality in pulses etc. (1)
(c) Biotic and abiotic resistance Production of
crops slows down due to biotic and abiotic stresses under different situations.
Varieties resistance to these stresses can improve crop production.
(d) Change in maturity duration Short duration of sowing
make the crop more economical because they allow farmers to grow multiple
rounds of Shorter duration of crop, the more benefit it is. (1)
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