Inter and intra specific grafting and budding in Annona spp. (Record no. 290578)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 06278nam a22001817a 4500 |
| 082 ## - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 634.1 |
| Item number | POO/IN PG |
| 100 ## - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Pooja Varma M |
| 245 ## - TITLE STATEMENT | |
| Title | Inter and intra specific grafting and budding in Annona spp. |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) | |
| Place of publication, distribution, etc | Vellanikkara |
| Name of publisher, distributor, etc | Department of Fruit Science, College of Agricuture |
| Date of publication, distribution, etc | 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | x, 62p. |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | MSc |
| 520 3# - SUMMARY, ETC. | |
| Abstract | Edible fruits of the genus Annona are collectively known as Annonaceous fruits. In India, these fruits were mainly consumed by the lower classes, but now realising the nutritional benefits and medicinal value of these fruits in controlling lifestyle diseases and lethal ailments like cancer, the demand for these fruits are on the increase. These fruits are mainly propagated through seeds and therefore, exhibit great genetic variability with regard to its growth, yield and quality, with an unpredictable pre-bearing age. So in order to propagate an identified superior type maintaining their true to type character vegetative propagation techniques have to be standardized. There is also a lot of scope for taking up commercial cultivation of Annona spp. like A. squamosa L. (Custard apple or Sitaphal), A. reticulata L. (Bullock’s heart or Ramphal) and A. muricata L. (Soursop) which are common in our homesteads. But, the main factor limiting the commercial cultivation of these crops is the lack of good quality planting material. So the present study entitiled “ Inter and intra specific grafting and budding in Annona spp.”was carried out in the college orchard attached to the Department of Fruit Science, College of Agriculture, Vellanikkara during 2021-2022. The research programme was conducted as two experiments. First experiment was identification of rootstock and scion combinations for softwood grafting in Annona spp. Three selected species of genus Annona namely Annona squamosa L., Annona reticulata L. and Annona muricata L. were grafted in all possible cross combinations (as rootstock and scion) during three different seasons (February- March using four months old rootstock, May- June using six month old rootstock and October- November using one year old rootstock). Experiment was laid out in Completely Randomized Design with nine treatments replicated thrice with twenty one plants per replication. Treatments included T1 (A. squamosa on A.squamosa), T2 (A. squamosa on A. reticulata), T3 (A. squamosa on A. muricata), T4 (A. reticulata on A. squamosa), T5 (A. reticulata on A. reticulata), T6 (A. reticulata on A. muricata), T7 (A. muricata on A. squamosa), T8 (A. muricata on A. reticulata) and T9 (A. muricata on A. muricata). Observations on vegetative characters were noted at 15 days interval for three months and root characters at the end of third month after grafting. From the results it was found that treatment T4 (A. reticulata on A. squamosa) took only minimum number of days (9.55 days) to sprout when grafted during FebruaryMarch, whereas maximum survival percentage was observed for the treatment T9 (A. muricata on A. muricata) (100%) followed by T1 (A. squamosa on A. squamosa) (90.46%) and T6 (A. reticulata on A. muricata) (80.90%) grafted during the same period. Plants grafted during May-June were observed with very low survival percentage for all the nine treatments. For grafting carried out during October-November, T6 (A. reticulata on A. muricata) (80.95%) and T1 (A. squamosa on A. squamosa) (76.18%) exhibited better survival rates. With regard to number of leaves and branches produced T1 (A. squamosa on A. squamosa), T6 (A. reticulata on A. muricata) and T9 (A. muricata on A. muricata) were found to be superior irrespective of season of grafting or age of rootstock used. Treatment T9 (A. muricata on A. muricata) was observed to possess maximum shoot length (37.12 cm) and treatment T1 (A. squamosa on A. squamosa) produced maximum number of roots, whereas average length of root was maximum for treatment T6 (A. reticulata on A. muricata) when grafted during February-March. Second experiment was conducted to identify the best rootstock and scion combinations for patch budding in Annona spp. Treatments from T1-T9 were same as that of experiment 1 budded in all possible cross combinations of three species of Annona namely A. squamosa L., A. reticulata L. and A. muricata L. Observations on vegetative characters were recorded at 15 days interval for three months. Root characters were recorded at the end of three months after budding. The results of this experiment indicated that treatment T3 (A. squamosa on A. muricata), T5 (A. reticulata on A. reticulata) and T6 (A. reticulata on A. muricata) took an average count between 29-36 days for initial sprouting. Plants budded during MayJune sprouted earlier, whereas highest survival percentage was observed for treatments T6 (A. reticulata on A. muricata) (100%) budded during February-March. Branching did not exhibit any significant difference in any of the treatments. Treatment T6 (A. reticulata on A. muricata) produced maximum number of leaves during all the three seasons. Treatments T6 (A. reticulata on A. muricata) (24.75 cm) and T9 (A. muricata on A. muricata) (20.01 cm) budded during October-November were found to be superior with respect to shoot length. Treatment T5 (A. reticulata on A. reticulata) budded during February-March produced maximum number of roots, whereas T3 (A. squamosa on A. muricata) (13.75 cm) and T9 (A. muricata on A. muricata) (13.05 cm) budded during the same period recorded maximum length of root. In the present study, treatments T1 (A. squamosa on A. squamosa), T6 (A. reticulata on A. muricata) and T9 (A. muricata on A. muricata) were found to perform better with regard to all the characters under study. The period February-March followed by October-November were identified as the ideal season for grafting and budding in Annona spp. Grafted plants were found to perform better compared to budded plants in terms of early initial sprouting and survival rate. |
| 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 | Annona spp. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name as entry element | Specific grafting and budding |
| 700 ## - ADDED ENTRY--PERSONAL NAME | |
| Personal name | JyothiBhaskar (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 | 2023-09-18 | 634.1 POO/IN PG | 175768 | 2023-09-18 | Theses |