Silicon Application Increases Drought Tolerance of Kentucky Bluegrass by Improving Plant Water Relations and Morphophysiological Functions

Table 1

Influence of silicon application on C : N ratio of Kentucky bluegrass leaves under drought stress.

Treatment	Days after treatment
	0 d	10 d	15 d	27 d
Ww-Si-0	17.36^a	17.86^b	17.14^c	17.94^d
Ds-Si-0	17.88^a	21.98^a	28.73^a	24.83^a
Ds-Si-200	17.93^a	21.25^a	27.52^ab	22.65^ab
Ds-Si-400	17.40^a	19.29^ab	24.56^b	19.64^cd
Ds-Si-800	17.65^a	20.17^ab	26.37^ab	20.95^bc
LSD (0.05)	ns	2.82	3.53	2.99

Means sharing different latters are significant at LSD (0.05). ns: nonsignificant; Ww: well watered; Ds: drought stress; Si-0, Si-200, Si-400, and Si-800 means Si application at 0, 200, 400, and 800 mg L⁻¹, respectively. From 𝑡 = 0–20 d: drought stress period, after 20 days: recovery stage.