Effect of nitrogen sources on yield and yield components of potato (Solanum tuberosum) cultivars

Venkatasalam, E. P.; Bairwa, Aarti; Divya, K.; Sudha, R.; Mhatre, Priyank Hanuman; Govindakrishnan, P. M.; Singh, Rita

doi:10.56093/ijas.v89i1.86101

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…However, the tuber initiation is positively linked with the hormonal levels of IAA, cytokinins and ABA, whereas GA exhibits a suppressive role in tuber initiation (Cenzano et al, 2003). Nonetheless, it has been shown that Zn treatment could positively affect tuber development and its fresh weight (Kumar et al, 2008). Not only this, the beneficial effects of Zn application on various other crops have been reported.…”

Section: Discussionmentioning

confidence: 99%

Nano-zinc oxide foliar application at the tuber initiation stage enhances the starch synthesis and zinc bioaccumulation in potato tubers

Nazir,

Anwar,

Mahmood

et al. 2024

Int. J. Appl. Exp. Biol.

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Crops cultivated on alkaline soils are normally deficient in micronutrients, therefore among others, zinc deficiency is a widespread problem in Pakistan. By using a novel approach, we have shown that agronomic biofortification of potato tubers can be achieved through application of nano-zinc oxide during the tuber initiation stage. Field experimentation was performed during the potato growing season (2021-2022) with five different concentrations of nano-zinc oxide (0, 25, 50, 100, and 250 mg L-1) applied to 55-d old plants at tuber initiation stage, and after 40 days of spray, potato tubers were harvested for the analysis of various biochemical and agronomic traits and changes in bioavailable concentration of Zn in potato tubers. An increase in growth and yield traits was recorded due to spray of 25 and 50 mg L-1 nano-zinc oxide. Starch fraction in tubers was increased in response to all nano-zinc oxide concentrations. Interestingly, over 50% increase in starch was recorded due to application of 25 mg L-1 nano-zinc oxide, while higher doses up to 250 mg L-1 increased tuber starch by ~34%. Soluble sugars increased progressively up to 250 mg L-1 reaching maximum values than the control. Above all, maximum concentration of Zn in potato tuber was recorded in response to 250 mg L-1 spray of nano-zinc oxide ranging up to 58.2 - 65.5 µg g-1 dry weight. Overall, exogenous application of nano-zinc oxide to potato plants can improve potato tuber quality by enhancing starch contents and contributing to translocation of Zn in potato tubers leading to agronomic biofortification.

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Section: Discussionmentioning

confidence: 99%

Nano-zinc oxide foliar application at the tuber initiation stage enhances the starch synthesis and zinc bioaccumulation in potato tubers

Nazir,

Anwar,

Mahmood

et al. 2024

Int. J. Appl. Exp. Biol.

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“…The maximum starch content (17.10%) was recorded under treatment T6 (RDF + Foliar application of zinc sulphate @ 2 g L -1 at 25 and 50 days after planting), whereas T1 (RDF without zinc) recorded the minimum value (13.18%). The higher amount of starch accumulation may be attributed to the increased rate of photosynthesis with application of zinc, translocation of photosynthates (sucrose, glucose and fructose) from source (leaves) to sink (tubers) and their subsequent conversion to starch [15,16]. Also, zinc activates enzymes such as aldolase and carbonic anhydrase, which help in translocation of carbohydrates from leaves to tubers.…”

Section: Dry Matter Content Specific Gravity and Starch Content In Tu...mentioning

confidence: 99%

Zinc Application Enhances Tuber Quality and Zinc Bioavailability in Potato (Solanum tuberosum L.) in the Tarai Region of Uttarakhand

Pandey,

Behera,

Shaili

et al. 2024

JEAI

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As evident from plant and soil investigations, 49 per cent of Indian soils are deficient in zinc. This could affect the production and quality of potato (Solanum tuberosum L.) as the crop is moderately sensitive to zinc deficiency. Zinc is considered to be the most important micronutrient for potato and its reduced availability in the plant is the major constraint to obtaining good tuber quality. However, repeated practice of rice-wheat cropping system in the tarai region of Uttarakhand has led to zinc deficiency in the soil, and thereby, its availability in the tubers. Therefore, the present investigation was undertaken at the Vegetable Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (Uttarakhand) during the rabi season of 2021-22 with the objective to enhance the quality of potato tubers, and at the same time, increase the bioavailability of zinc in the tubers. The experiment was laid out in a randomised complete block design with twelve treatments and four replications. The results of the experiment revealed that foliar application of ZnSO4 @ 2 g L-1 at 25 and 50 days after planting recorded the highest dry matter content (20.73%), specific gravity (1.07 g cm-3) and starch content (17.10%) in the tubers. The zinc content in tubers (47.58 ppm) and zinc uptake by tubers (2.85 kg ha-1) were also found to be maximum in the same treatment combination. Hence, the same treatment combination can be recommended for getting better quality of potato tubers as well as increasing zinc bioavailability in potato under the tarai region of Uttarakhand.

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“…A study by Kumar et al, (2008), proved that various elements in complex compound fertilizer, such as Zn, B, S, and Mg, aids in boosting plant height and foliage coverage throughout the early phases of growth and as well as in later stages too. According to Kumar et al, (2008) this might be the reason for higher shoot length of pepper plants performed in Yara complex fertilizer treatments (T1) than other fertilizers. Therefore, Yara complex fertilizer (T1) has an effect on early shoot growth of black pepper plants.…”

Section: Shoot Lengthmentioning

confidence: 99%

Selection of best compound fertilizer amended potting mixture for successful growth of black pepper (<em>Piper nigrum l.</em>) hybrid (“Dingirala”) nursery plants

Devadason,

De Silva,

De Silva

et al. 2023

J. Agric. Val. Add.

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Black Pepper, Piper nigrum L.) is a perennial, evergreen, climbing vine and it is widely used as a spice and flavoring agent in the food industry and ayurvada medicine throughout the world. Therefore, continuous supply of pepper is important for the sustainability of these sectors. Pepper is usually propagated vegetatively using stem cuttings. Cuttings are planted in polythene bags filled with a mixture of equal parts of topsoil, cow dung, sand, and coir dust. Scarcity of cow dung and expensiveness resulted with huge demand are the limiting factors in commercial production of pepper. Incorporation of nitrogen and phosphorus containing fertilizers to potting mixture in the absence of cow dung may at least supply plant nutrients which highly essential for early growth of plants. Therefore, this study was carried out to investigate the effect of different compound fertilizer for nursery plants of P. nigrum L, hybrid “Dingirala” in the absence of cow dung in the potting mixture. Four different levels (1, 2, 3, 4 g per pot) of four different compound fertilizers were taken as treatments such as T1- Yara Complex (N:P:K 12:11:18), T2- Yara Grower ( N:P:K 21:7:14), T3- NPK Balance (N:P:K 15:15:15) K as SOP, T4- NPK Balance (N:P:K 15:15:15) K as MOP and T5 a phosphate fertilizer Di-ammonium phosphate (DAP) (N:P:K 18:46 :0). All were mixed into a modified potting mixture of topsoil: sand: coir dust 2:1:1 without cow dung. Control was the potting mixture already recommended by Department of Export Agriculture (top soil: sand: coir dust: cow dung, 2:1:1:1) without inorganic fertilizer. Each treatment contained three replicates per treatment. Complete Randomized Block Design (RCBD) was the experimental design and each block consisted with 50 plants. Two nodal cuttings of Black pepper hybrid Dingirala were planted and maintained in a propagator under a net house at central research station Matale (IM3a). After 105 days from establishment, survival percentage, growth parameters such as shoot length (cm), number of leaves and shoot dry weight (g) were measured. Soil parameters such as soil pH and EC and total N%, P% and K% of tissues were analyzed. Significantly highest (P<0.05) survival rate (91%) was recorded from recommended potting mixture used as control in this experiment and cuttings treated with 1g of Di-ammonium phosphate. Significantly highest (P<0.05) shoot length (39.1cm) was recorded from cuttings treated with 1g of Yara complex fertilizer (N:P:K 12:11:18) and Significantly highest (P<0.05) number of leaves (9.0) was recorded from cuttings treated with 1g of DAP fertilizer.Therefore, cuttings planted with top soil: sand: coir dust: cow dung, 2:1:1:1 is the best potting mixture and in absence of cow dung with normal potting mixture with 1g of Di-ammonium phosphate excelled all compound fertilizers in terms of overall growth, soil and leaf nutrient parameters of Hybrid "Dingirala" pepper nursery plants over the first 105 days after establishment.

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Effect of nitrogen sources on yield and yield components of potato (Solanum tuberosum) cultivars

Cited by 4 publications

References 11 publications

Nano-zinc oxide foliar application at the tuber initiation stage enhances the starch synthesis and zinc bioaccumulation in potato tubers

Nano-zinc oxide foliar application at the tuber initiation stage enhances the starch synthesis and zinc bioaccumulation in potato tubers

Zinc Application Enhances Tuber Quality and Zinc Bioavailability in Potato (Solanum tuberosum L.) in the Tarai Region of Uttarakhand

Selection of best compound fertilizer amended potting mixture for successful growth of black pepper (<em>Piper nigrum l.</em>) hybrid (“Dingirala”) nursery plants

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