Early rootstock selection under ‘tahiti’ acid lime crown in Capitão Poço, Pará State, Brazil

Gurgel, Fábio de Lima; Mariguele, Keny Henrique; Yokomizo, Gilberto Ken Iti; Andrade Neto, Romeu de Carvalho; Girardi, Eduardo Augusto; Passos, Orlando Sampaio; Soares Filho, Walter dos Santos

doi:10.4025/actasciagron.v46i1.63302

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CROP PRODUCTION • Acta Sci., Agron. 46 • 2024 • https://doi.org/10.4025/actasciagron.v46i1.63302 copy

Early rootstock selection under ‘tahiti’ acid lime crown in Capitão Poço, Pará State, Brazil

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT. Citrus represents one of the main fruit crops grown in the world, highlighting the ‘Tahiti’ acid lime tree. The objective was to compare rootstock varieties combined with this scion to identify those with the best agronomic performance and precocity of production, in addition to Phytophthora gummosis resistance. The experiment was carried out in Capitão Poço, northeast region of Pará, and the following seven rootstock genotypes were evaluated: ‘Sunki Tropical’, ‘BRS O S Passos’, ‘BRS Bravo’, ‘BRS Donadio’, ‘Citrandarin Indio’, ‘BRS Matta’, and ‘LVK x LCR-038’. A randomized block experimental design was used, with three replications and 10 plants per plot. The evaluated characteristics were: plant height (m); crown volume (m³); number of ripe fruit per plant; total yield of ripened fruit per plant (kg plant^-1); cumulative fruit yield (fruit kg plant^-1); and average productive efficiency (fruit kg m^-3 of crown). The average productive efficiency was high. For early selection, the best rootstocks in terms of yield, stability and adaptability were Sunki Tropical, BRS O S Passos, and Cintradarin Indio. The fruit number had the greatest direct effect on fruit yield, and crown pruning was directly harmful. Further studies to understand the complex interaction of G x E for BRS Donadio and Sunki Tropical should be carried out.

Keywords:
Citrus spp.; fruticulture; genetic breeding; association measures; predictability

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[1] * Author for correspondence. E-mail: gilberto.yokomizo@embrapa.br

Rootstocks	Average plant height (m)				Average
Rootstocks	2017	2018	2019	2020
Sunki Tropical	2.15^a	2.37^a	2.36^a	2.74^a	2.41^a
BRS O S Passos	2.05^a	2.19^a	2.29^a	2.58^a	2.28^a
BRS Bravo	1.66^b	1.85^b	1.97^a	2.30^b	1.94^b
BRS Donadio	1.50^b	1.75^b	2.05^a	2.18^b	1.87^b
Citrandarin Indio	2.01^a	1.98^b	2.09^a	2.61^a	2.17^a
BRS Matta	1.97^a	2.04^a	2.26^a	2.58^a	2.21^a
LVK x LCR - 038	1.36^b	1.69^b	2.01^a	2.12^b	1.80^b
Average	1.82^B	1.98^B	2.15^B	2.44^A	2.10
CV (%)	10.59	9.13	7.08	11.21	9.41
Rootstocks	Average crown volume (m³)				Average
Rootstocks	2017	2018	2019	2020
Sunki Tropical	4.73^a	9.31^a	1.23^a	1.41^a	4.17^a
BRS O S Passos	3.98^a	6.42^b	0.99^a	1.50^a	3.22^a
BRS Bravo	2.58^b	4.56^c	1.03^a	1.30^a	2.36^b
BRS Donadio	1.80^b	4.37^c	0.37^a	1.26^a	1.95^b
Citrandarin Indio	4.21^a	5.79^b	1.32^a	1.68^a	3.25^a
BRS Matta	3.95^a	6.26^b	1.12^a	1.41^a	3.20^a
LVK x LCR - 038	1.32^b	2.51^d	1.50^a	1.26^a	1.65^b
Average	3.22^B	5.60^A	1.08^C	1.41^C	2.83
CV (%)	26.77	13.22	32.50	20.15	29.14
Rootstocks	Average fruits number per plant				Average
Rootstocks	2017	2018	2019	2020
Sunki Tropical	1.83^a	47.27^a	62.33^a	53.00^b	41.11^a
BRS O S Passos	8.60^a	29.07^a	49.00^a	99.67^a	46.58^a
BRS Bravo	1.37^a	9.10^b	17.67^b	64.00^b	23.03^a
BRS Donadio	5.00^a	12.33^b	42.33^a	29.00^c	22.17^a
Citrandarin Indio	0.83^a	24.00^b	45.00^a	58.00^b	31.96^a
BRS Matta	0.97^a	20.10^b	28.00^b	53.67^b	25.68^a
LVK x LCR - 038	1.07^a	8.57^b	25.67^b	37.80^c	18.27^a
Average	2.81^B	21.49^B	38.57^A	56.45^A	29.83
CV (%)	97.03	61.24	39.03	33.16	55.86

	General		Favorable environments		Unfavorable environments
	Average (%)	W_i	Average (%)	W_i	Average (%)	W_i
Sunki Tropical	135.17	53.90	127.75	71.73	142.60	14.62
BRS O S Passos	186.24	89.37	151.80	110.82	220.68	79.33
BRS Bravo	62.54	22.77	79.59	23.68	45.49	40.28
BRS Donadio	99.12	30.40	80.56	32.27	117.68	17.92
Citrandarin Indio	90.19	42.50	109.71	98.20	70.67	2.81
BRS Matta	73.90	40.84	83.83	65.23	63.97	15.05
LVK x LCR - 038	52.83	34.00	66.75	66.40	38.91	37.34

Rootstocks	Average productive efficiency	Accumulated production (kg plant^-1)
Sunki Tropical	5.24^a	13.44^a
BRS O S Passos	6.31^a	15.81^a
BRS Bravo	3.41^b	8.13^b
BRS Donadio	3.60^b	8.22^b
Citrandarin Indio	4.01^b	11.51^a
BRS Matta	3.36^b	8.73^b
LVK x LCR - 038	2.54^b	6.42^b
CV (%)	24.03	23.17

Explanatory variables	Effects on fruit per plant yield
Explanatory variables	plant height	crown volume	Fruits number
plant height	0.0195	-0.0045	0.5250
crown volume	0.0080	-0.0111	0.2430
Fruits number	0.0106	-0.0028	0.9722
residual effect: 0.1983
R²: 0.9607