Fertilizer dosage regimen and steckling transplanting for accelerated sugar beet seed production

Ashutosh Kumar Mall; Varucha Misra; Rahul Kumar Tiwari; Sangeeta Srivastava; Aalok Shiv; Manoj Kumar Tripathi; Rassappa Viswanathan; Dinesh Singh; Ashutosh Kumar Mall; Varucha Misra; Rahul Kumar Tiwari; Sangeeta Srivastava; Aalok Shiv; Manoj Kumar Tripathi; Rassappa Viswanathan; Dinesh Singh

doi:10.48130/tia-0026-0001

Figures (3) Tables (3)

Figure 1.
Steckling transplanting method of sugar beet seed production.
Figure 2.
Comparative assessment of planting methods and fertilizer doses based on recorded observations (a) Days to bolting. (b) Bolting per cent. (c) Days to stalk formation. (d) Days to flowering. (e) Days to seed harvesting. (f) Yield per plant. *** Highly significant (p < 0.001), and ** or * denotes significant differences (p < 0.05).
Figure 3.
Fertilizer dosage regimen for high and quality seed production in sugar beet.

Genotypes	Characteristics
LKC 2020	High ethanol potential even under drought stress, tolerance to Spodoptera litura (Armyworm)
LKC 2010	Drought tolerance, elevated sucrose content, and robust bioethanol recovery
LKC 2006	High temperature tolerant
LKC 2007	Water deficit stress tolerant; high root yields and superior juice quality; high temperature tolerant
IISR Comp 1	High temperature tolerant; salinity tolerant
LS 6	High sugar content

Table 1.

Characteristics of ICAR-ISRI identified sugar beet genotypes used in the study.

Planting/sowing method	Steckling (E₁)	Pit method (E₃)	Direct seeded (E₂)
Location	Lucknow (sowing) Mukteshwar (transplanting)		Mukteshwar
Sowing	1^st fortnight of October		May/June
Transplanting	2^nd fortnight of December	1^st fortnight of March	Not applicable
Seed harvesting	Aug (2^nd fortnight) to September (1^st fortnight)
Key activities	Sowing and steckling preparation at Lucknow (October–December); selection, trimming, and transport of healthy stecklings to Mukteshwar and transplantation, crop care, flowering, and seed setting (December–September).	Sowing at ICAR-ISRI, Lucknow (October); selection and transport of stecklings to Mukteshwar; placement of roots in pre-dug pits (60 cm × 100 cm) before snowfall; natural cold treatment for vernalization during winter; retrieval and field transplantation after snowmelt and crop growth, flowering, and seed harvest (July–September).	Direct sowing of sugar beet seeds at Mukteshwar (May–June); continuous crop growth without transplantation; regular irrigation, nutrient, and pest management; flowering, seed maturation, and harvesting (September next year).

Table 2.

Description of different planting methods.

Planting style	Germplasm	Stalk percentage (mean ± SD)		Flowering percentage (mean ± SD)		Germination percentage (mean ± SD)		Test weight (mean ± SD with rank)
Planting style	Germplasm	F₁	F₂	F₁	F₂	F₁	F₂	F₁	F₂
E₁	IISR COMP 1	69.17 ± 3.75	65.00 ± 5.00	61.67 ± 8.75	58.33 ± 7.64	90.95 ± 2.88	85.98 ± 3.29	2.46 ± 0.03	3.18 ± 0.02
	LS 6	80.00 ± 6.46	75.83 ± 5.15	71.67 ± 3.75	70.83 ± 2.89	92.46 ± 2.29	88.21 ± 2.46	2.33 ± 0.03	3.14 ± 0.06
	LKC 2006	86.67 ± 1.44	78.33 ± 2.89	85.00 ± 5.00	70.83 ± 4.96	96.37 ± 2.34	91.57 ± 2.18	2.56 ± 0.04	3.24 ± 0.08
	LKC 2007	85.83 ± 5.15	71.67 ± 2.89	80.00 ±6.45	69.17 ± 5.27	90.91 ± 1.76	85.35 ± 2.12	2.44 ± 0.03	3.04 ± 0.04
	LKC 2010	74.17 ± 3.75	68.33 ± 2.89	87.50 ± 6.45	62.50 ± 4.79	89.38 ± 0.86	84.63 ± 2.03	2.35 ± 0.02	2.74 ± 0.34
	LKC 2020	71.67 ± 3.75	65.83 ± 5.15	85.00 ± 2.89	64.17 ± 5.85	92.16 ± 2.11	88.28 ± 1.99	2.51 ± 0.07	3.23 ± 0.07
E₂	IISR COMP 1	82.50 ± 4.33	70.00 ± 2.50	87.50 ± 2.50	65.00 ± 4.33	92.51 ± 1.99	88.54 ± 2.06	2.70 ± 0.18	3.10 ± 0.07
	LS 6	90.83 ± 3.75	83.33 ± 2.89	95.83 ± 1.44	75.83 ± 1.44	93.28 ± 0.99	87.85 ± 1.42	2.52 ± 0.08	3.18 ± 0.02
	LKC 2006	86.67 ± 5.00	81.67 ± 3.89	90.00 ± 2.89	73.33 ± 8.06	95.17 ± 0.91	91.84 ± 1.34	4.31 ± 0.09	4.84 ± 0.05
	LKC 2007	84.17 ± 8.06	75.83 ± 7.5	82.50 ± 6.45	69.17 ± 7.50	91.74 ± 1.04	88.82 ± 1.01	4.35 ± 0.03	3.50 ± 0.34
	LKC 2010	84.17 ±10.93	74.17 ± 16.07	80.83 ± 8.96	66.67 ± 17.56	91.51 ± 1.75	87.25 ± 1.87	4.08 ± 0.08	3.44 ± 0.06
	LKC 2020	90.00 ± 2.89	81.67 ± 6.29	84.17 ± 3.75	74.17 ± 3.75	94.56 ± 0.88	90.87 ± 1.55	4.15 ± 0.04	3.55 ± 0.16
E₃	IISR COMP 1	56.67 ± 7.64	61.67 ± 7.64	55.83 ± 3.75	51.67 ± 6.29	88.43 ± 1.45	86.35 ± 1.93	1.08 ± 0.02	1.53 ± 0.04
	LS 6	55.83 ± 5.15	53.33 ± 5.00	54.17 ± 5.15	45.83 ± 3.75	95.22 ± 1.11	92.87 ± 1.57	1.35 ± 0.04	1.86 ± 0.09
	LKC 2006	59.17 ± 3.89	55.83 ± 3.89	60.00 ± 6.29	53.33 ± 1.44	93.64 ± 0.99	89.74 ± 1.36	1.77 ± 0.04	2.12 ± 0.08
	LKC 2007	62.50 ± 2.50	60.00 ± 6.29	57.50 ± 5.00	59.17 ± 4.79	90.32 ± 1.28	86.44 ± 1.45	1.46 ± 0.09	1.58 ± 0.11
	LKC 2010	53.33 ± 3.79	50.00 ± 5.00	50.00 ± 4.33	46.67 ± 5.77	90.33 ± 1.45	86.18 ± 1.74	1.14 ± 0.05	1.29 ± 0.07
	LKC 2020	65.00 ± 4.33	57.50 ± 5.00	61.67 ± 3.75	55.00 ± 5.00	91.63 ± 1.17	87.76 ± 1.68	1.15 ± 0.03	1.31 ± 0.06
* F₁-120:60:60; F₂-120:80:80; bold data denotes the highest values in each column (F1 and F2 separately for each trait), to highlight the most significant data.

Table 3.

Mean ± standard deviation of agro-morphological traits under different planting methods and NPK fertilizer levels.