Mitsubishi Gas Chemical Company, Inc.

Takashi Oritani

Takashi Suzuki

Taketo Maruyama

Akinori Tanaka

Mitsunori Oda

Masakazu Furushima

Shigeo Yoshinaka

Toshio Kajita

Yoshiaki Suzuki

Yoshinori Sasaki

Disclosed are novel adenine derivatives represented by the formula I and agriculturally acceptable acid addition salts thereof represented by the formula: ##STR1## wherein n is an integer of 2-4. Compositions for increasing yield of crops such as leguminous crops and gramineous crops which contain the above adenine derivatives or salts thereof as an active ingredient and methods for increasing yield of crops using these compositions are also disclosed.

Adenine derivatives and their use as agents for increasing yield of crops

A denine derivatives represented by the following formula: ##STR1## (wherein n is 1 or 2 and R and R' represent hydrogen or a methyl, ethyl, allyl, or propargyl group) and agriculturally acceptable acid addition salts thereof, which have cytokinin activity and besides, excellent rooting action, is applied to as plant growth regulators.

Adenine derivatives and their use as a plant growth regulator

Growing community of inventors

Toyama, Japan

Takashi Oritani