Studies of different growth stages of wood apple (Feronia limonia) through extended BBCH-scale under rainfed semi-arid conditions of western India

Twenty-eight genotypes of wood apple (Feronia limonia L.) were studies at CHES, ICAR (CIAH), Godhra, during 2017-2019. Eight principal growth stages of wood apple were found, starting from vegetative bud dormancy (stage 0) to maturity of fruit (stage 8). Three principal growth stages like stage 0, 1 and 3 are denoting to vegetative growth. Remaining stages (5, 6, 7 and 8) were reported to reproductive growth and development. The principle growth stages were divided in sub categorized called as secondary stages, which denoting the shorter developmental intervals. The first digit of code in BBCH scale denotes the principle growth stage (0-8) and second digit defined by the meso stages (1 to n). The third digit is numerical value between 0-9 that refer to percentage development of buds, leaves, shoots, flowering, fruit development, fruit maturity and senescence.