Table 6 The effect of three irrigation water regimes on the nutritional concentration of fodder radish during 2021/22 and 2022/23.

Genotype	Water regime	Season	TWA	Beta-carotene (mg 100 g^− 1 DW)	Vitamin C (mg 100 g^− 1 DW)	Vitamin E (mg 100 g^− 1 DW)	Fe (mg 100 g^− 1 DW)	Zn (mg 100 g^− 1 DW)
LINE 2	W1	2021/22	305	40.43 ± 3.81^a	31.10 ± 2.65^a	547.57 ± 101.29^b	100.90 ± 3.40^a	133.90 ± 13.40^a
	W2	2021/22	220	30.60 ± 4.30^b	24.60 ± 2.50^b	644.80 ± 172.80^a	95.70 ± 7.20^a	104.40 ± 18.20^b
	W3	2021/22	180	30.23 ± 1.64^b	23.80 ± 1.61^b	316.70 ± 30.23^c	85.20 ± 3.50^b	49.90 ± 5.90^c
	W1	2022/23	366	37.20 ± 5.60^a	27.30 ± 4.60^a	476.50 ± 103.80^b	95.90 ± 10.50^a	136.93 ± 14.30^a
	W2	2022/23	245	29.90 ± 3.40^c	26.50 ± 1.09^a	686.80 ± 164.90^a	100.70 ± 21.30^a	107.00 ± 19.40^b
	W3	2022/23	188	33.93 ± 6.01^b	22.60 ± 2.20^b	414.90 ± 41.50^c	80.20 ± 7.40^b	52.03 ± 6.20^c
ENDURANCE	W1	2021/22	305	46.60 ± 4.90^a	31.16 ± 3.20^a	548.03 ± 3.80^b	88.97 ± 8.80^a	132.40 ± 14.90^a
	W2	2021/22	220	30.80 ± 4.30^b	26.50 ± 2.90^a	714.20 ± 174.90^a	82.20 ± 7.90^a	108.70 ± 20.20^b
	W3	2021/22	180	29.00 ± 0.60^b	22.30 ± 1.30^b	316.90 ± 47.60^c	92.03 ± 9.40^a	46.30 ± 3.40^c
	W1	2022/23	366	31.40 ± 3.40^b	26.50 ± 2.70^b	345.00 ± 41.91^c	83.96 ± 7.90^a	135.36 ± 16.60^a
	W2	2022/23	245	39.80 ± 7.60^a	29.33 ± 3.80^a	610.80 ± 384.10^a	77.20 ± 6.20^a	104.40 ± 18.20^b
	W3	2022/23	188	29.63 ± 7.10^b	26.50 ± 5.21^b	552.60 ± 114.31^b	87.03 ± 8.20^a	44.30 ± 2.80^c

^{a, b,c} Means and SE in the column row with different superscripts are significantly different (P < 0.005) and (P < 0.001) within a season. Mean (and SEM) of two fodder radish genotypes ENDURANCE and LINE 2 nutrient concentration with W1 (well-watered), W2 (moderate stress) and W3 (severe water stress), Total water applied (TWA in mm).

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