Question

…………………. phytohormone is a coconut milk factor.

Answer 1

An opaque liquid that is milky and extracted from the grated pulp of mature coconut is the coconut milk which consists of a rich taste of coconut with its high oil content.

Complete answer:
Cytokinin is a coconut milk factor. The plant growth substances or the phytohormones helps in promoting cell division in plant roots and shoots and helps in cell growth primarily with the cell differentiation that affects the apical dominance, leaf senescence, and axillary bud growth. The synthesis of cytokinin is due to the cambium and other actively dividing tissues that are found in the plants. It participates in long-distance signaling and local signaling with the same transport mechanism as nucleosides and purines and is transported in the xylem. The effect of cytokinin on plant growth is due to the ratio of auxin to cytokinin and the cytokinin alone creates no effect on the parenchyma cells. Cytokinin is present in the coconut water which is the liquid endosperm. It serves as a measurement for the growth of the embryo in coconut cytokinins which have a special effect on cytokinesis and helps to produce new leaves chloroplast and shoot growth both lateral and adventitious. The cytokines help in overcoming the apical dominance by promoting nutrient mobilization which helps in the delay of leaf senescence.

Additional information:
Auxin: Plant hormones can be defined as organic molecules that are produced in plants that help in regulating the growth and development of plant parts. These molecules control morphological, physiological, and biochemical responses in different parts of the plant. Auxin functions include inducing cell elongation, maintaining apical dominance, initiating root formation, preventing abscission, inducing parthenocarpy, and is also used as a herbicide in synthetic forms.
Morphactin: It is a group of substances that modulate the expression of plants and acts on morphogenesis which are the derivatives of fluorene compounds.

So, the correct answer is 'Cytokinin'.

Note:
It was found in 1943 that coconut milk can actively encourage plant growth and is the main cause for the existence of cytokinin which is also known as zeatin found in coconut milk. Auxins are responsible for the delay in leaf senescence and ripening of the fruits in plants. It helps in the promotion of female characters in some flowers.