(1) The layer between seed coat and cotyledon probably includes the wall of the embryo sac.

(2) In the first attempts to achieve embryo-to-plantlet conversion, 16-week-old cotyledonary stage embryos (including 2 weeks pretreatment) were selected for use as experimental material.

(3) The cotyledons are the u251cu00f6u251cu00e7u251cu2510seed leavesu251cu00f6u251cu00e7u251cu00fb produced by the embryo.

(4) Seedlings at the vegetative cotyledonary stage, about 7-10 days old, were transplanted into plastic pots containing the same medium.

(5) However, protein biosynthesis in the axis organs and cotyledons of dicotyledonous seeds commences much earlier.

(6) Mutants of this class display shortened hypocotyls and small cotyledons after irradiation of seed.

(7) In contrast, in seedlings grown in vitro, growth of the cotyledonary tissue, shoot and root was observed with growth in the root appearing later and proceeding more slowly than in the shoot.

(8) Three chlorophyll readings were made and averaged on the middle leaflet of the first trifoliate of soybean, the second true leaf of lettuce (counting up from the cotyledonary leaves) and the second leaf of wheat.

(9) Further development of cotyledonary embryo showing closed vascular system and characteristic cotyledonary notches.

(10) They are present on the stems, leaves, cotyledons , rachises, pedicles, bracts and calyces.