Study of the Effect of Pretreatment of Corms by Different Concentrations of Gibberellic Acid and at Different Periods on the Growth, Flowering, and Quality of Saffron in Eastern Morocco

Table 3

Effect of different GA₃ concentrations and duration of application on phytochemical indices and quality grading of saffron stigmas.

Duration of application	Treatment GA3			NM 08.1.038; picrocrocin				NM 08.1.038 crocin				NM 08.1.038; safranal
		2017	2018	2017	2018	2017	2018	2017	2018	2017	2018	2017	2018
Before planting	Control	142	123	I	I	110	90	II	HN	50	54	I	HN
	25 ppm	119	134	I	I	87	79	HN	HN	71	63	HN	HN
	50 ppm	139	128	I	I	92	154	HN	I	42	48	I	I
	100 ppm	112	100	I	I	120	100	III	III	46	39	I	I
	200 ppm	103	127	I	I	102	116	III	III	62	40	HN	I
June	Control	125	109	I	I	82	94	HN	HN	77	69	HN	HN
	25 ppm	140	134	I	I	116	135	III	III	58	62	HN	HN
	50 ppm	115	127	I	I	128	92	III	HN	49	63	I	HN
	100 ppm	100	96	I	I	96	102	HN	III	40	51	I	HN
	200 ppm	132	120	I	I	122	108	III	III	65	55	HN	HN
March	Control	126	130	I	I	127	142	III	III	74	60	HN	HN
	25 ppm	104	97	I	I	95	113	HN	III	96	68	HN	HN
	50 ppm	123	100	I	I	88	133	HN	III	42	57	I	HN
	100 ppm	128	139	I	I	147	161	III	II	55	69	HN	HN
	200 ppm	111	125	I	I	137	105	III	III	61	58	HN	HN