. 2022 Aug 24;12:14421. doi: 10.1038/s41598-022-18660-4

Table 3.

Effects of foliar α-oxoglutarate and nitrogen on leaf proline content under drought stress (µg g⁻¹ FW).

Treatment	S1 stage		S2 stage		S3 stage
Treatment	Hefeng51	Hefeng43	Hefeng51	Hefeng43	Hefeng51	Hefeng43
DS1	60.51^b	56.09^b	75.99^b	71.12^b	86.93^b	79.23^b
DS2	61.80^b	57.15^b	74.42^b	72.04^b	86.77^b	78.86^b
DS3	70.30^a	64.67^a	85.95^a	83.94^a	92.85^a	87.22^a
CK1	50.36^c	43.86^c	68.28^c	58.04^c	77.12^c	64.67^c
CK2	35.91^d	31.97^d	35.23^d	32.06^d	36.58^d	31.67^d
Treatment (T)	***	***	***	***	***	***
Cultivar (C)	***		***		***
C × T	**		***		***

Means with same letter within columns are not significantly different (P < 0.05) using LSD test.

***, **Significance at 0.001, and 0.01, respectively.