Name the plant growth regulator which upan spraying on sugarcane crop, increases the length of stem. thus increasing the yield of sugarcane crop

Spraying sugarcane crop with gibberellins increases the length of the stem, thus increasing the yield by as much as :

weeds increase the yield of the crop.

Fill in the blanks: 1. Spraying sugarcane crop with ....a.... increases in the length of the stem, thus increasing the yield by as much as .....b.. tonnes per acre. 2. ........c does not occur naturally in plants. 3. Search for natural substances with cytokinin like activities led to the isolation of ...d... from corn kernels and coconut milk.

The best way to increase the yield of crop :-

Aquatic fern is used to increase the yield in paddy crop