Wheat grain width: a clue for re-exploring visual indicators of grain weight

Haghshenas, Abbas; Emam, Yahya; Jafarizadeh, Saeid

doi:10.1186/s13007-022-00891-1

Plant Methods

Table 2 The correlation coefficients (R) of mean grain weight (MGW) and image-derived indices

From: Wheat grain width: a clue for re-exploring visual indicators of grain weight

Resolution	Indices	Overall	1st year	2nd year	WI (2 years)	DI (2 years)	1st Y. WI	1st Y. DI	2nd Y. WI	2nd Y. DI
Original resolution	Area	0.8740	0.8382	0.8813	0.8092	0.8486	0.8117	0.7898	0.7805	0.8113
	Minor	0.8790	0.9044	0.9034	0.7805	0.8549	0.8751	0.8621	0.7860	0.8310
	MinFeret	0.8833	0.9030	0.9086	0.7930	0.8567	0.8664	0.8579	0.7897	0.8488
	Area/perim	0.8920	0.9034	0.9087	0.8083	0.8712	0.8737	0.8690	0.7972	0.8454
	Area × Circ	0.8921	0.9081	0.9088	0.8118	0.8688	0.8846	0.8704	0.8004	0.8467
	Minor/Solidity	0.8863	0.9080	0.9044	0.7959	0.8627	0.8759	0.8666	0.7866	0.8373
	MinF/Solidity	0.8852	0.8960	0.9062	0.8038	0.8541	0.8584	0.8425	0.7856	0.8498
	Area × Solidity	0.8776	0.8478	0.8884	0.8085	0.8534	0.8222	0.8022	0.7869	0.8194
	Perim. × Circ	0.8902	0.9088	0.9087	0.8108	0.8646	0.8906	0.8702	0.8006	0.8438
	A1 (Area × Perim. × Circ. × Solidity × MinF)	0.8942	0.8958	0.9074	0.8228	0.8706	0.8690	0.8525	0.8069	0.8515
	A2 (Area × Perim. × Circ. × Solidity × Minor)	0.8946	0.8984	0.9076	0.8222	0.8714	0.8755	0.8546	0.8078	0.8498
	Kim index	0.8743	0.8390	0.8815	0.8104	0.8489	0.8130	0.7902	0.7810	0.8129
	Mean	0.8852	0.8876	0.9013	0.8064	0.8605	0.8597	0.8440	0.7924	0.8373
Enhanced resolution	Area	0.9053	0.8688	0.8963	0.8617	0.8812	0.8468	0.8204	0.8163	0.8108
	Minor	0.9208	0.9433	0.9257	0.8582	0.9069	0.9077	0.9255	0.8524	0.8434
	MinFeret	0.9159	0.9367	0.9204	0.8456	0.9032	0.8878	0.9241	0.8416	0.8344
	Area/perim	0.9361	0.9421	0.9314	0.8889	0.9225	0.9115	0.9236	0.8642	0.8588
	Area × Circ	0.9373	0.9463	0.9334	0.8922	0.9228	0.9194	0.9280	0.8714	0.8615
	Minor/Solidity	0.9149	0.9389	0.9150	0.8471	0.8991	0.8994	0.9212	0.8287	0.8261
	MinF/Solidity	0.9088	0.9307	0.9084	0.8328	0.8935	0.8777	0.9171	0.8161	0.8148
	Area × Solidity	0.9110	0.8754	0.9052	0.8674	0.8882	0.8527	0.8290	0.8297	0.8242
	Perim. × Circ	0.9362	0.9485	0.9335	0.8932	0.9198	0.9246	0.9304	0.8782	0.8582
	A1 (Area × Perim. × Circ. × Solidity × MinF)	0.9323	0.9292	0.9279	0.8853	0.9170	0.8978	0.9057	0.8622	0.8568
	A2 (Area × Perim. × Circ. × Solidity × Minor)	0.9353	0.9338	0.9310	0.8910	0.9201	0.9058	0.9106	0.8691	0.8614
	Kim index	0.9055	0.8690	0.8969	0.8618	0.8819	0.8471	0.8208	0.8159	0.8129
	Mean	0.9216	0.9219	0.9188	0.8688	0.9047	0.8898	0.8964	0.8455	0.8386

WI and DI: well- and deficit-irrigated, respectively

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ISSN: 1746-4811

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