知識貝殼
知識貝殼
所屬欄目：英漢煙草科技
a. ChlorophyllThe plastid pigments in relation to the physiological age of the leafaccording to stalk position was examined. Concentration of chlorophyllwas approximately the same at all stalk positions in a virescent line. Influe-cured tobacco,chlorophyl ......（本文共 3706 字 ） [閱讀本文] >>