Flowering and fruiting behaviour with respect of nutrients and carbohydrate status in mango cv. Alphonso and kesar
KrishiKosh
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Title |
Flowering and fruiting behaviour with respect of nutrients and carbohydrate status in mango cv. Alphonso and kesar
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Creator |
Bhalerao, Rahul R
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Contributor |
Padhiar, B.V.
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Subject |
fruits, developmental stages, mangoes, carbohydrates, sugar, nitrogen, biological development, yields, acidity, potassium
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Description |
The “Flowering and fruiting behavior with respect of nutrients and carbohydrate status in mango cv. Alp honso and Kesar” was carried out at Block No. - 1 and Plot No. – 3 B during the year 2010 - 11 and 2011 - 12 at Agriculture Experimental Station, Navsari Agricultural University, Paria, Dist. - Valsad (Gujarat). Decrease in level of nitrogen during October and Nov ember in both the cultivars indicated the use of leaf nitrogen during fruit bud differentiation. Then it continuously decreased up to 1 st March after flowering in both the cultivars in both the years, which was fruit development period. Increasing trend of phosphorus content in leaves found in October and November, the fruit bud differentiation stage, then again it started to decline during fruit set and fruit development. Similar trend was found in Alphonso and Kesar cultivars during both the years. Rapid decrease of potassium content was observed in leaves of both the cultivars at initial stage and decrease or stability in the potassium content after flowering, fruit set and fruit growth . Carbohydrate level was increased in Alphonso on 1 st November in both the year s ; while, in Kesar it was 1 st st November in 2010 - 11 and 2011 - 12 , respectively, carbohydrate level depleted after flowering, at fruit set and development stage in Alphonso and Kesar. Average number of vegeta tive shoots per twenty t wigs were found higher during both the year indicating less flowering shoot in Alphonso. While in Kesar, flowering shoots were higher compared to Alphonso. Flowering was initiated during first year in first week of December and it took 30 - 40 days to full b loom in both the cultivars. In contrast, flowering started in January in both the cultivars and showed full bloom in about 30 days during second year. The entire yield contributing characters and yield recorded higher in 2011 - 12 than 2010 - 11, while, values for all these characters was higher in Kesar than Alphonso except the number of fruits harvested per tree. Most of the physical parameters found higher in second year in both cultivars but all the physical parameter s was found better in Kesar than Alph onso. Chemical parameters were observed better in second year compared to first year in both the cultivars. Photosynthesis rate (P n ) (μmole m - 2 s - 1 ) in leaves of mango cv. Alphonso as well as Kesar was decreased along with progress in the sampling period (starting from July) till the completion of flowering. Decrease in stomatal conductance (gs) (mole m - 2 s - 1 ) and internal CO 2 concentra tion (ppm) of leaves and increased in leaf temperature ( 0 C) was observed during the investigation period. Most of the growth, flowering, yield, physical and chemical parameter s of fruit exerted positive correlation and was positively influenced by leaf n itrogen, phosphorus, potassium, carbohydrate, photosynthesis, stomatal conductance and internal CO 2 of leaf. In contrast, leaf temperature negatively correlated which showed important role of leaf nutrients, carbohydrate and physiological processes for fru it set and retention of fruit up to maturity stage. |
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Date |
2016-05-20T10:16:32Z
2016-05-20T10:16:32Z 2013 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/66148
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Language |
en
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Format |
application/pdf
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Publisher |
NAU
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