Expansin genes expression in growing ovaries and grains of sunflower are tissue-specific and associate with final grain weight

Table 1 Physiological traits of grains in experiments 1 and 2 of sunflower genotypes

Exp	Genotype	Source-Sink treament	Dry weight (mg)						Dimensions (mm)
Exp			Ovary at R3	Ovary at R5	Grain	Pericarp	Embryo	Grain/pericarp	Length	Width	Height	Embryo length
1	Alybro	Control	0.33	1.94	76.5	20.3	58.0	3.9	11.1	6.8	4.6	8.7
2	Alybro	Control	0.24	1.60	79.2	20.2	60.9	3.9	11.0	6.8	4.4	8.4
		Shading	0.23	0.88	58.2	14.1	46.4	4.1	9.6	5.5	3.7	7.5
	RHA280	Control	0.41	2.60	148.8	76.1	73.2	2.0	13.0	9.8	6.5	9.9
		Shading	0.37	1.75	107.0	58.1	61.5	1.8	12.3	8.4	5.2	9.0
	s.e.m		0.03	0.23	10.4	6.6	6.2	0.4	0.4	0.5	0.3	0.3
	Genotype		^a	^a	^a	^a	^a	^a	^a	^a	^a	^a
	Source-sink ratio		ns	^a	^a	^a	^a	*	^a	^a	^a	^a
	Genotype x Source-sink		ns	ns	ns	^a	^a	ns	^a	ns	^a	^a

Values are means of three replicates. ns means not significant effects. * Significant effects at P < 0.05. ** Significant effects at P < 0.01
^aSignificant effects at P < 0.001 (modified from Castillo et al., 2017)

ISSN: 1471-2229