Nano nitrogen application in papaya (Carica papaya L.) for growth, yield and quality enhancement (Record no. 291379)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 05319nam a22001937a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 634.1 |
| Item number | SNE/NA |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Sneha, J V |
| 245 ## - TITLE STATEMENT | |
| Title | Nano nitrogen application in papaya (Carica papaya L.) for growth, yield and quality enhancement |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Vellayani |
| Name of publisher, distributor, etc | Department of Fruit Science, College of Agriculture |
| Date of publication, distribution, etc | 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 114p. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | MSc |
| 520 3# - SUMMARY, ETC. | |
| Abstract | Nano nitrogen application in papaya (Carica papaya L.) for growth, yield and quality enhancement The study entitled “Nano nitrogen application in papaya (Carica papaya L.) for growth, yield and quality enhancement” was conducted in the Department of Fruit Science, College of Agriculture Vellayani, from 2022 April to 2023 June. Nitrogen plays a major role within the plant to ensure energy is available when and where the plant needs it to optimize yield. The present work was undertaken to assess the effect of foliar applied nano nitrogen on growth, yield and quality enhancement in papaya. The field experiment was laid out in Randomized Block Design (RBD) with 10 treatments and 3 replications. The papaya variety Arka Surya was selected for the experiment purpose. Treatments were T1-POP (25% N) (soil) + Nano N (6 foliar sprays at 2, 4, 6, 8, 10 and 12 MAP), T2-POP (25% N) (soil) + Nano N (5 foliar sprays at 2, 4, 6, 8 and 10 MAP), T3-POP (25% N) (soil) + Nano N (4 foliar sprays at 2, 4, 6 and 8 MAP), T4-POP (50% N) (soil) + Nano N (6 foliar sprays at 2, 4, 6, 8, 10 and 12 MAP), T5-POP (50% N) (soil) + Nano N (5 foliar sprays at 2, 4, 6, 8 and 10 MAP), T6-POP (50% N) (soil) + Nano N (4 foliar sprays at 2, 4, 6 and 8 MAP), T7- POP (75% N) (soil) + Nano N (6 foliar sprays at 2, 4, 6, 8, 10 and 12 MAP), T8-POP (75% N) (soil) + Nano N (5 foliar sprays at 2, 4, 6, 8 and 10 MAP), T9-POP (75% N) (soil) + Nano N (4 foliar sprays at 2, 4, 6 and 8 MAP), T10-KAU POP (240:240:480 g NPK plant per year) (control). Foliar application of nano nitrogen was given @ 4ml per litre and FYM was applied at the rate of 10kg per plant as per KAU POP uniformly to all treatments as basal dose. The requirement of lime, phosphorus and potassium were met on the basis of calculated value as per initial soil status. Application of 75% nitrogen through soil along with 6 foliar sprays nano nitrogen (2, 4, 6, 8, 10 and 12 MAP) in bimonthly interval increased the biometric characters like height of plants, girth of plants, number of leaves, number of flowers per cluster, number of female flowers, fruit set and decreased height at first flowering, days taken for first flowering, and flowering to harvest duration. The results reveals that yield characters such as fruit weight, fruit length, fruit girth, fruit volume, pulp percentage, flesh thickness, number of fruits per plant and total yield per plant was increased and days taken for maturity of fruit was decreased while application of 75% nitrogen through soil along with 6 foliar sprays of nano nitrogen (2, 4, 6, 8, 10 and 12 MAP). Each character among the qualitative ones examined varied significantly. Application of 75% nitrogen through soil along with 6 foliar sprays of nano nitrogen (2, 4, 6, 8, 10 and 12 MAP) reduced the titrable acidity and recorded maximum TSS, total sugar, reducing sugar, ascorbic acid, carotenoid whereas plants treated with 25% nitrogen through soil along with 4 foliar sprays nano nitrogen (2, 4, 6 and 8 MAP) reported the lowest values for these characters. Pulp and peel color also improved in this (T7) treatment. Application of 75% nitrogen through soil along with 6 foliar sprays nano nitrogen (2, 4, 6, 8, 10 and 12 MAP) increased the organoleptic qualities like appearance, colour, taste, flavour and overall acceptability. Shelf life of fruits were longer with the same treatment. According to data on the soil analysis there was a reduction in soil available nitrogen and in plant analysis, nitrogen, phosphorous, potassium,content was the highest with the plants treated with 75% nitrogen through soil along with 6 foliar sprays nano nitrogen (2, 4, 6, 8, 10 and 12 MAP). Similarly data on fruit analysis showed that nitrogen, phosphorous, potassium content was the highest with the T7. The Foot rot caused by Phytophthora palmivora was noticed in the field with less than 1 per cent incidence rate. Also red spider mite infestation was noticed in some plants. The pest and disease incidence were controlled by taking appropriate remedial measures as and when noticed. The highest net income and benefit cost ratio was observed while applying 75% nitrogen through soil along with 6 foliar sprays nano nitrogen (2, 4, 6, 8, 10 and 12 MAP) followed by plants that treated with Ad hoc recommendation (240:240:480 g NPK plant per year). From the above findings, it was concluded that application of 75% nitrogen through soil along with 6 times foliar sprays of nano nitrogen (2, 4, 6, 8, 10 and 12 MAP) along with the application of organic manure (10 kg FYM plant-1 ) increased the growth, yield and quality characteristics of papaya and it was economically viable too |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Fruit Science |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Carica papaya L. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Nitrogen application |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Bindu, B (Guide) |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | |
| Item type | Theses |
| Not for loan | Collection code | Permanent location | Current location | Shelving location | Date acquired | Full call number | Barcode | Date last seen | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Not For Loan | Thesis | KAU Central Library, Thrissur | KAU Central Library, Thrissur | Theses | 2024-07-02 | 634.1 SNE/NA | 176021 | 2024-07-02 | Theses |