Table 4 The interaction effect of deficit irrigation × TiO₂-NPs (A) and simple effect of them (B) on gas exchange and photosynthetic pigments of the rose plant.

(A)							(B)
Deficit irrigation	TiO₂-NP (ppm)	Chlorophyll a (mg g⁻¹ fw)	Chlorophyll b (mg g⁻¹ fw)	Total chlorophyll (mg.g⁻¹ fw)	Transpiration (mmol H2O.m⁻².S⁻¹)	Stomatal conductance (mol CO2.m⁻².S⁻¹)			Carotenoid (mg g⁻¹ fw)	Photosynthesis (µmol CO₂ m⁻² S⁻¹)
FI	0	4.758^bcd*	3.898^cd	8.656^ef	0.54^ef	0.46^ef
	15	4.796^bcd	4.639^bcd	9.435^c−f	0.78^bc	0.65^cd	Deficit irrigation	FI	0.151^b	17.33^b
	30	4.876^bcd	4.308^cd	9.184^c−f	0.76^bcd	0.64^cde		PRD1	0.229^a	18.93^ab
								PRD2	0.217^a	19.25^a
PRD1	0	4.853^bcd	4.589^bcd	10.984^b	0.78^bc	0.81^abc		SDI	0.132^b	14.85^c
	15	5.710^ab	4.141^cd	10.477^bc	0.88^ab	0.78^bc
	30	6.408^a	6.259^a	10.335^bcd	0.87^ab	0.75^c
PRD2	0	5.067^bc	4.287^cd	10.298^bcd	0.56^ef	0.49^def		30	0.191^b	19.96^a
	15	6.696^a	5.410^ab	8.993^def	1.04^a	0.99^a	TiO₂-NP (ppm)	15	0.248^a	19.79^a
	30	5.679^ab	4.657^bc	12.667^a	1.02^a	0.95^ab		0	0.107^c	13.02^b
SDI	0	4.382^cd	3.760^d	8.141f.	0.37f.	0.32f.
	15	4.390^cd	5.297^b	9.687^b−e	0.63^cde	0.50^def
	30	3.917^d	4.696^bc	8.613^ef	0.58^de	0.51^de

*Means followed by same letters in each column does not have a significant difference based on the LSD test (p ≤ 0.01).

Quick links

Search