<b>Adventitious rooting of cultivars and clonal selections of <i>Prunus</i> spp. rootstock under intermittent mist system</b>

Mayer, Newton Alex; Lopes, Jéssica Luz; Ueno, Bernardo

doi:10.1590/0034-737X202168030009

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Vegetative and Seminiferous Propagation • Rev. Ceres 68 (3) • 2021 • https://doi.org/10.1590/0034-737X202168030009 copy

**Adventitious rooting of cultivars and clonal selections of Prunus spp. rootstock under intermittent mist system** ¹ Work financed by Embrapa (Project MP2 02.13.06.001.00.00) and CNPq (Project 304651/2017-6).

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

To reduce peach tree losses due the Peach Tree Short Life (PTSL), the main research line in Brazil is to select tolerant rootstock and perpetuate it by cloning methods. The objective was to evaluate adventitious rooting capacity of softwood cuttings of three cultivars and several clonal rootstock selections of Prunus spp., under intermittent mist system. Two trials were conducted and ‘Capdeboscq’, ‘Okinawa’ (P. persica) and ‘Sharpe’ [‘Chickasaw’ (P. angustifolia Marsh.) x Prunus spp.] were used as reference cultivars. After 53 days (trial 1) and 72 days (trial 2) from the cutting setting, we conclude that softwood cuttings under intermittent mist system are a feasible way to propagate peach rootstock selections of 2010/2011 PTSL selection cycle. Root quality was satisfactory in most selections, with high percentages of cuttings suitable for transplanting and excellent root number and root length. OS-GRA-10-17, VEH-GRA-10-31, VEH-GRA-10-32, VEH-GRA-10-37 and VEH-GRA-10-38 selections had the highest mortality and the lower percentages of live rooted cuttings. The ease of vegetative propagation must be taken into account in more promising rootstock.

Keywords:
Rosaceae; softwood cutting; cloning; PTSL syndrome

Universidade Federal de Viçosa Av. Peter Henry Rolfs, s/n, 36570-000 Viçosa, Minas Gerais Brasil, Tel./Fax: (55 31) 3612-2078 - Viçosa - MG - Brazil
E-mail: ceres@ufv.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author: alex.mayer@embrapa.br

Environmental data	Trial 1	Trial 2
Maximum air temperature (°C)	44.8	43.9
Minimum air temperature (°C)	9.9	12.2
Air temperatures > 27.0 °C (% of total time)	35.7	34.4
Air temperatures < 15.0 °C (% of total time)	1.9	1.1
Maximum thermal amplitude per 24 h (°C)	27.2	24.1
Minimum thermal amplitude per 24 h (°C)	4.5	7.0
Maximum air relative humidity (%)	100.0	100.0
Minimum air relative humidity (%)	24.7	27.1
Maximum amplitude per 24 h of air relative humidity (%)	75.3	72.9
Minimum amplitude per 24 h of air relative humidity (%)	0.0	0.0

Rootstock	Dead cuttings	Dead rooted cuttings	Live rooted cuttings	Suitable rooted cuttings	Unsuitable rooted cuttings
Rootstock	(%)
VHS-SEN-10-07	5.00 b	10.00 b	77.50 a	44.38 a	55.63 b
VHS-SEN-10-08	35.00 a	27.50 a	37.50 b	60.00 a	40.00 b
VHS-SEN-10-09	47.50 a	5.00 b	47.50 b	56.67 a	43.33 b
VHS-SEN-10-10	17.50 b	5.00 b	77.00 a	47.92 a	52.08 b
OS-JAD-10-12	40.00 a	20.00 a	40.00 b	34.38 a	40.63 b
OS-JAD-10-13	20.00 b	25.00 a	50.00 b	48.75 a	51.23 b
OS-GRA-10-16	12.50 b	32.50 a	55.00 b	62.38 a	37.62 b
OS-GRA-10-17	52.50 a	25.00 a	22.50 c	66.67 a	33.33 b
OS-GRA-10-18	47.50 a	5.00 b	47.50 b	7.14 a	92.86 a
OS-GRA-10-20	35.00 a	32.50 a	30.00 c	77.50 a	22.50 b
EM-PRE-10-21	25.00 b	20.00 a	55.00 b	46.23 a	53.77 b
EM-SEN-10-25	10.00 b	15.00 a	75.00 a	53.18 a	46.83 b
ENP-JAD-10-27	22.50 b	27.50 a	50.00 b	49.11 a	50.89 b
VEH-GRA-10-31	50.00 a	32.50 a	17.50 c	35.00 a	40.00 b
VEH-GRA-10-32	50.00 a	32.50 a	17.50 c	8.33 a	91.67 a
Capdeboscq	2.50 b	0.00 b	90.00 a	85.42 a	14.58 b
Okinawa	17.50 b	5.00 b	77.50 a	81.25 a	18.75 b
Sharpe	12.50 b	5.00 b	80.00 a	69.45 a	30.56 b
F _rootstock	4.61**	4.17**	5.87**	2.14*	2.07*
CV (%)	42.34	55.42	27.15	52.56	57.67

Rootstock	Root number per cutting	Root lenght (cm)	Cuttings with original leaves (%)	Sprouted cuttings (%)
VHS-SEN-10-07	8.92 c	8.03 a	72.00 a	32.50 a
VHS-SEN-10-08	8.78 c	5.56 b	35.00 b	7.50 b
VHS-SEN-10-09	10.75 c	8.80 a	35.00 b	37.50 a
VHS-SEN-10-10	9.52 c	6.13 a	67.50 a	7.50 b
OS-JAD-10-12	5.52 c	3.42 b	22.50 b	17.50 b
OS-JAD-10-13	9.40 c	4.67 b	47.50 b	0.00 b
OS-GRA-10-16	15.90 b	6.15 a	30.00 b	35.00 a
OS-GRA-10-17	9.79 c	3.81 b	25.00 b	37.50 a
OS-GRA-10-18	5.43 c	2.72 b	45.00 b	2.50 b
OS-GRA-10-20	13.45 c	4.65 b	12.50 b	5.00 b
EM-PRE-10-21	11.59 c	7.57 a	40.00 b	35.00 a
EM-SEN-10-25	12.96 c	6.75 a	62.50 a	10.00 b
ENP-JAD-10-27	11.86 c	6.35 a	30.00 b	35.00 a
VEH-GRA-10-31	6.00 c	3.99 b	17.50 b	0.00 b
VEH-GRA-10-32	6.67 c	4.74 b	12.50 b	5.00 b
Capdeboscq	18.80 b	8.57 a	92.50 a	25.00 a
Okinawa	21.64 a	4.86 b	37.50 b	57.50 a
Sharpe	25.77 a	6.94 a	62.50 a	65.00 a
F _rootstock	6.13*	3.52**	4.80**	5.76**
CV (%)	38.36	33.15	37.56	58.83

Rootstock	Dead cuttings	Dead rooted cuttings	Live rooted cuttings	Suitable rooted cuttings	Unsuitable rooted cuttings
Rootstock	(%)
VEH-GRA-10-33	25.00 a	27.50 a	47.50 a	23.81 a	76.19 a
VEH-GRA-10-36	25.00 a	17.50 a	57.50 a	36.61 a	63.39 a
VEH-GRA-10-37	47.50 a	27.50 a	25.00 b	25.00 a	75.00 a
VEH-GRA-10-38	55.00 a	25.00 a	20.00 b	39.58 a	60.42 a
VEH-GRA-10-39	25.00 a	12.50 a	62.50 a	28.47 a	71.53 a
JTV-JAD-10-41	32.50 a	32.50 a	25.00 b	50.00 a	50.00 a
JTV-JAD-10-42	47.50 a	22.50 a	30.00 b	27.08 a	72.92 a
JTV-JAD-10-43	42.50 a	12.50 a	45.00 a	41.67 a	58.33 a
JTV-JAD-10-44	27.50 a	27.50 a	45.00 a	23.75 a	76.25 a
JTV-GRA-10-46	20.00 a	17.50 a	55.00 a	43.16 a	56.85 a
JTV-GRA-10-47	17.50 a	25.00 a	57.50 a	25.83 a	74.17 a
JTV-ESM-10-50	32.50 a	37.50 a	30.00 b	50.00 a	25.00 b
ISD-GRA-10-53	35.00 a	17.50 a	45.00 a	15.00 a	85.00 a
ISD-ELD-10-55	20.00 a	27.50 a	55.00 a	58.45 a	41.55 a
VS-ELD-10-59	42.50 a	17.50 a	37.50 a	16.67 a	83.34 a
Capdeboscq	32.50 a	32.50 a	35.00 b	42.14 a	57.86 a
Okinawa	52.50 a	25.00 a	7.50 b	50.00 a	0.00 b
Sharpe	5.00 a	65.00 a	30.00 b	66.67 a	8.33 b
F _rootstock	1.83*	1.51^NS	2.31*	0.72 ^NS	3.34**
CV (%)	45.57	51.12	38.54	79.21	45.85

Rootstock	Root number per cutting	Root lenght (cm)	Cuttings with original leaves (%)	Sprouted cuttings (%)
VEH-GRA-10-33	13.54 a	6.31 a	25.00 a	57.50 a
VEH-GRA-10-36	9.62 a	6.99 a	45.00 a	30.00 b
VEH-GRA-10-37	7.44 a	5.65 a	5.00 a	40.00 a
VEH-GRA-10-38	5.92 a	3.05 a	10.00 a	5.00 c
VEH-GRA-10-39	11.12 a	7.73 a	45.00 a	45.00 a
JTV-JAD-10-41	17.98 a	6.97 a	15.00 a	50.00 a
JTV-JAD-10-42	7.42 a	5.85 a	25.00 a	27.50 b
JTV-JAD-10-43	9.90 a	6.63 a	27.50 a	42.50 a
JTV-JAD-10-44	15.63 a	5.98 a	22.50 a	47.50 a
JTV-GRA-10-46	6.82 a	8.12 a	50.00 a	52.50 a
JTV-GRA-10-47	8.50 a	5.13 a	37.50 a	52.50 a
JTV-ESM-10-50	7.25 a	1.83 a	27.50 a	22.50 b
ISD-GRA-10-53	4.00 a	5.29 a	30.00 a	75.00 a
ISD-ELD-10-55	16.91 a	7.67 a	42.50 a	55.00 a
VS-ELD-10-59	8.54 a	7.54 a	37.50 a	20.00 b
Capdeboscq	6.45 a	6.90 a	32.50 a	37.50 a
Okinawa	7.75 a	3.45 a	15.00 a	50.00 a
Sharpe	18.84 a	7.88 a	40.00 a	42.50 a
F _rootstock	1.36 ^NS	1.68 ^NS	1.77 ^NS	9.92**
CV (%)	75.09	45.17	47.14	30.79

Brasil

Brasil

Adventitious rooting of cultivars and clonal selections of Prunus spp. rootstock under intermittent mist system 1 Work financed by Embrapa (Project MP2 02.13.06.001.00.00) and CNPq (Project 304651/2017-6).

ABSTRACT

**Adventitious rooting of cultivars and clonal selections of Prunus spp. rootstock under intermittent mist system** ¹ Work financed by Embrapa (Project MP2 02.13.06.001.00.00) and CNPq (Project 304651/2017-6).