Initial development and yield in sugarcane from different propagules<sup>1</sup>

Baracat, Jorge; Scarpare, Fábio Vale; Araújo, Raphael Branco de; Scarpare-Filho, João Alexio

doi:10.1590/1983-40632016v4744472

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Scientific Articles • Pesqui. Agropecu. Trop. 47 (03) • Jul-Sep 2017 • https://doi.org/10.1590/1983-40632016v4744472 copy

Initial development and yield in sugarcane from different propagules¹

Desenvolvimento inicial e produtividade em cana-de-açúcar a partir de diferentes propágulos

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The use of small sections of sugarcane propagules for planting brings new challenges, due to the use of different parts of the stem, since each one contains different concentrations of reserves and hormonal balances. This study aimed to assess the influence of types of propagules used for planting sugarcane. A field experiment was carried out using a randomized block design, with three replications, in a 3 x 3 factorial arrangement (propagules with 2, 3 and 4 buds from the apex, middle and base of the stems). The original position (apical and central) and the number of buds of the propagules (2 and 3 buds) influenced the initial development of the plants and, consequently, their yield. The interaction between these two factors showed that, as the number of buds of the propagules decreases, their position plays an important role in budding. Thus, when smaller propagules are used for the establishment of sugarcane, the original position of the bud in the propagule should be considered.

KEYWORDS:
Propagule length; bud position; sprouting; tillering

Layer	OM	pH	H + Al	P	K	Ca	Mg	Al	S	SB	CEC	V	m
m	g dm^-3	CaCl₂	mmol_c dm^-3	mg dm^-3	^________ mmol_c dm^{-3 ________}				mg dm^-3	^___ mmol_c dm^{-3 ___}		^______ % ^______
0.0-0.2	9.0	4.9	28.0	18.0	3.8	19.0	9.0	1.0	13.0	31.8	59.8	53.2	3.0
0.2-0.4	8.0	4.4	42.0	10.0	2.6	17.0	8.0	6.0	56.0	27.6	69.6	39.7	17.9

Variable	Sprounting (16 DAP)	Sprounting(34 DAP)	Tillering	Plant height	Cane diameter	Cane yield	Sucrose	TRS
Position (P)	501.40^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	21.94^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	7.23^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	25.66^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	6.49^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	8.46^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	2.40^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	11.95^** , * and ns Significant at 1 %, 5 % and not significant, respectively.
Length (L)	32.20^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	0.41^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	0.84^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	16.04^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.79^* , * and ns Significant at 1 %, 5 % and not significant, respectively.	4.36^* , * and ns Significant at 1 %, 5 % and not significant, respectively.	0.48^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.86^* , * and ns Significant at 1 %, 5 % and not significant, respectively.
P x L	13.07^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	4.78^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	2.29^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	6.80^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.75^* , * and ns Significant at 1 %, 5 % and not significant, respectively.	7.26^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	2.36^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.67^* , * and ns Significant at 1 %, 5 % and not significant, respectively.
CV (%)	11.00	20.00	18.50	3.10	3.50	27.30	12.40	29.20

	CV (%)	^{___________________} Position ^{___________________}
	CV (%)	Apical	Central	Basal
Tillering	18.5	28.0 a	27.1 a	23.9 b

Escola de Agronomia/UFG Caixa Postal 131 - Campus II, 74001-970 Goiânia-GO / Brasil, 55 62 3521-1552 - Goiânia - GO - Brazil
E-mail: revistapat.agro@ufg.br

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[TFN1] OM = organic matter; SB = sum of bases; CEC = cationic exchange capacity; V = percentage of base saturation.

Variable	Sprounting (16 DAP)	Sprounting(34 DAP)	Tillering	Plant height	Cane diameter	Cane yield	Sucrose	TRS
Position (P)	501.40^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	21.94^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	7.23^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	25.66^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	6.49^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	8.46^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	2.40^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	11.95^** , * and ns Significant at 1 %, 5 % and not significant, respectively.
Length (L)	32.20^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	0.41^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	0.84^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	16.04^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.79^* , * and ns Significant at 1 %, 5 % and not significant, respectively.	4.36^* , * and ns Significant at 1 %, 5 % and not significant, respectively.	0.48^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.86^* , * and ns Significant at 1 %, 5 % and not significant, respectively.
P x L	13.07^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	4.78^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	2.29^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	6.80^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.75^* , * and ns Significant at 1 %, 5 % and not significant, respectively.	7.26^** , * and ns Significant at 1 %, 5 % and not significant, respectively.	2.36^ns , * and ns Significant at 1 %, 5 % and not significant, respectively.	3.67^* , * and ns Significant at 1 %, 5 % and not significant, respectively.
CV (%)	11.00	20.00	18.50	3.10	3.50	27.30	12.40	29.20

Type	^{_____________________} Sprouting (%) 16 DAP ^{_____________________}			^{_____________________} Sprouting (%) 34 DAP ^{_____________________}
Type	Apical	Central	Basal	Apical	Central	Basal
2 buds	29.105 Aa^* * Capital letters on the columns represent the results of the Tukey test (alpha = 0.05) comparing the number of buds, while lowercase letters on the rows are the results of the Tukey test comparing the position of the cuttings. TRS: total recoverable sugar per hectare.	9.987 Ab	1.817 Ac	67.647 Aa	60.621 Aa	30.229 Bb
3 buds	24.064 Aa	7.229 ABb	1.842 Ac	69.529 Aa	53.199 Ab	45.623 Ab
4 buds	14.889 Ba	4.549 Bb	2.389 Ab	61.420 Aa	59.568 Aa	50.463Aa
Type	^{_________________________} Plant height (m) ^{_________________________}			^{_____________________} Stalk diameter (mm) ^{_____________________}
Type	Apical	Central	Basal	Apical	Central	Basal
2 buds	99.213 Ba	108.777 ABa	65.415 Bb	21.6589 Bab	23.6866 Aa	19.8114 Bb
3 buds	124.180 Aa	100.995 Bb	102.523 Ab	24.1779 Aa	22.3801 Ab	22.7525 Aab
4 buds	116.595 ABab	120.098 Aa	95.512 Ab	22.2994 Ba	23.3894 Aa	21.6457 ABa
Type	^{______________________} Cane yield (Mg ha^-1) ^{______________________}			^{__________________________} TRS (Mg ha^-1) ^{__________________________}
Type	Apical	Central	Basal	Apical	Central	Basal
2 buds	157.32 Aa	146.92 Aa	90.09 Bb	18.983 Aa	16.724 Aa	11.120 Bb
3 buds	162.94 Aa	138.94 Ab	169.26 Aa	19.593 Aa	18.896 Aa	17.019 Aa
4 buds	162.02 Aa	156.23 Aab	121.73 Bb	20.131 Aa	19.052 Aab	14.109 ABb

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Initial development and yield in sugarcane from different propagules1

Desenvolvimento inicial e produtividade em cana-de-açúcar a partir de diferentes propágulos

ABSTRACT

Initial development and yield in sugarcane from different propagules¹