Record ID No. |
1238 |
Author(s) |
Dey,P., Mathura-Rai., Kumar,S., Vishal-Nath., Bikash-Das., Reddy,N.N , 2005 |
Affiliation |
Horticulture and Agro-forestry Research Programme, ICAR Research Complex for Eastern Region, Rajaulatu, Ranchi, Jharkhand 834 010, India. |
Title |
Effect of biofertilizer on physico-chemical characteristics of guava (Psidium guajava) fruit |
Source. Vol.(no):Page |
Indian-Journal-of-Agricultural-Sciences. 75(2): 95-96p. |
Categories |
Arbuscular Mycorrhiza |
Subjects |
Soil plant relations |
Sub-subjects |
Manuring |
Host |
Psidium guajava |
Organism |
Azotobacter, Azospirillum, Glomus mosseae |
Country |
India, Asia |
Abstracts |
A field experiment was conducted in 1999 at Farm I (Plandu) of Horticulture and Agro-forestry Research Programme, Ranchi (Alfisol), Jharkhand, India to study the effect of 2 free-living N fixers (Azotobacter and Azospirillum) and 3 phosphate-solubilizers [vesicular-arbuscular mycorrhiza (Glomus mosseae), microphos and phosphobactrin], on fruit physico-chemical characteristics of 'L 49' guava (Psidium guajava). Biofertilizers were applied in July at 200 g/tree/year charged with 20 kg farmyard manure in a randomized block design with 4 replications and 2 plants/unit. Application of P solubilizers significantly influenced fruit weight of guava over the control (128.5 g). Highest fruit weight (154.5 g), fruit length (4.27 cm), and fruit diameter (4.68 cm) were obtained with the application of phosphobactrin. Application of vesicular-arbuscular mycorrhiza gave highest total soluble solid (10.1 degrees Brix) and total soluble solid:acid ratio (15.78). Application of P-solubilizers significantly influenced vitamin C content of guava over the control (140.0 mg/100 g). Highest vitamin C (ascorbic acid) content (151.8 mg/100 g) was recorded with vesicular-arbuscular mycorrhiza, which was, however, on a par with the application of phosphobactrin (149.3 mg/100 g) and microphos (147.5 mg/100 g). When grouped together, P solubilizers were found to have more beneficial effect on physico-chemical parameters of guava than that of N fixers under acid soil condition of Chotanagpur region. The efficacy of biofertilizers followed the order: phosphobactrin > vesicular-arbuscular mycorrhiza > microphos > Azotobacter > Azospirillum. |