The investigation on tuberose cv. Bidhan Rajini-1 were carried out at the Floriculture Research Station Rajendranagar, Hyderabad, to find out the effect of nutrients and biostimulants on tuberose with reference to growth attribute. The experiment was laid out in Randomized Block Design consisted of four biostimulants viz., Humic acid, Fulvic acid, Potassium humate, Arka Microbial Consortium in combination with nutrients. Various growth characters were recorded after planting. The experiment results showed that among the different treatments, application of 75% recommended doses of fertilizers (RDF) + Humic acid 12% (3ml/l) have shown significant effect on the vegetative growth parameters and maximum plant height and number of leaves, were recorded. In addition, this treatment has also resulted in early spike emergence (65days) and maximum spike length (83.56 cm), maximum chlorophyll content (58.66 Spad units) and promoted maximum duration of flowering (174.6 days) in tuberose cv. Bidhan Rajini-1. On the other hand, application of 100% RDF (200kgs each of NPK) resulted in maximum floret length (6.30cm) and floret diameter (5.28 cm).
The present investigation entitled “Effect of nutrients, biostimulants, packaging and storage temperatures on growth, flowering and storability of tuberose (Polianthes tuberosa L.) cv. Bidhan Rajini- 1.” was carried out under two experiments at the Floricultural Research Station, Rajendranagar, Sri Konda Laxman Telangana State Horticultural University, Rajendranagar Hyderabad during Kharif and Rabi seasons of 2017-18.
In the first experiment the effect of nutrients, bio stimulants viz., Fulvic acid 10%, Humic acid 12%, Potassium humate 95%, and Arka microbial consortium (AMC) were studied and observations were recorded on the growth, flowering, bulb yield and storage life of tuberose in cv. Bidhan Rajini-1.The experiment was laid out in RBD with nine treatments replicated thrice. The experiment results showed that among the different treatments, application of 75% recommended doses of fertilizers (RDF) + Humic acid 12% (3ml/l) have shown significant effect on the vegetative growth parameters and maximum plant height and number of leaves, were recorded. In addition, this treatment has also resulted in early spike emergence (65days) and maximum spike length (83.56 cm), rachis length (34.63cm) and promoted maximum duration of flowering (174.6Days) in tuberose cv. Bidhan Rajani-1.On the other hand, application of 100% RDF (200kgs each of NPK) resulted in maximum floret length (6.30cm) and floret diameter (5.28 cm).
Further regarding the flower yield contributing parameters, the application of 75% RDF along with Humic acid-12% (3ml/l) resulted in maximum number of spikes per clump (3.30), number of florets per spike (66.0), weight of individual florets (2.56gm) and 100 flowers weight (256.6gm), loose flower yield plot-1 (17.67 kgs) and flower yield ha-1(44 t). With respect to bulb yield maximum number of bulbs plant-1(10.3) and weight of bulb (243.6 gm) was also recorded in same treatment and followed by 100% RDF (200kg each of NPK). Further the bulblet number (19.6) and bulblet weight (64.16gm) was maximum in 100% RDF, followed
by75% RDF + Humic acid 12% (3ml/l).Whereas in the present study, application of RDF at 50% + Potassium humate 95% (2gm/l) has recorded minimum values for all parameters related to vegetative growth, flowering, yield and bulb characters.
Regarding physiological parameter maximum chlorophyll content (58.66 spad units) was recorded by the application of 75% RDF + Humic acid-12% (3ml/l), followed by 75% RDF +Fulvic acid-10%(3ml/l) while minimum values were recorded in RDF at 50% + Potassium humate 95% (2gm/l). The storage life of tuberose florets under the treatment 75% RDF + Humic acid 12% (3ml/l) recorded maximum valus (9.33 days) followed by RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% RDF 75% + Potassium humate 95% (2gm/l) (2gm/l)(2gm/l) and minimum days of storage (5.33 days) in RDF 50% + Arka microbial consortium.
As far as the economics is concerned the treatment 75% RDF in combination with Humic acid 12% (3ml/l) was recorded maximum net returns and B:C ratio (3.45) followed by 100% RDF (200kg each of NPK). while minimum net returns and B:C ratio (1.74) was recorded in the treatment RDF at 50% + Potassium humate 95% (2gm/l).
In the second experiment to study the effect of different packing material ,the flowers were packed in two packing materials viz., Polypropylene bags and LDPE bags at different grades of thickness (100 and 200 guage) as against without packing as control. The flowers were stored at three temperatures i.e. ambient conditions, 40C and 60C and data was recorded physiological parameters related to post harvest life of flowers Physiological loss in weight (PLW%), relative water content (RWC%), fifty percent wilting of flowers (days) and storage life (days) of flowers.
Among all the treatments, the loose flowers packaged in LDPE bags at 200 gauge and stored at 40C has recorded the minimum physiological loss in weight (0.656%), maximum relative water content (86.15%) and maximum days for fifty percent wilting (17.6 days) and the flowers remained fresh for 21 days. Whereas the flowers without packaging and kept at ambient temperatures lost their shelf life within 2 days.
In the present study among the biostimulants used 75% RDF + Humic acid 12% (3ml/l) was found is recommended for increase in yield and quality flower production tuberose cv. Bidhan Rajani. Hence this can be recommended to the farmers as it is a cost effective method for the commercial cultivation of tuberose. Further to improve the storage life of loose flowers of tuberose packing in 200 guage thickness of LDPE storage at 40C is found to extend the storage life by 21days.
In order to study the effect of different packaging materials [Polypropylene bags and LDPE bags at different grades of thickness (100 and 200 guage)] and storage conditions (ambient conditions, 40C and 60C) on keeping quality of loose flowers of tuberose, fully developed unopened buds of tuberose loose flowers cv. Bidhan Rajini - 1 were harvested from the experimental plot early in the morning. It was observed that packaging significantly influenced Physiological loss in weight (PLW%), relative water content (RWC%), fifty percent wilting of flowers (days) and storage life (days) of flowers throughout the storage period. Among all the treatments, the loose flowers packaged in LDPE bags at 200 gauge and stored at 40C has recorded the minimum physiological loss in weight (0.656%), maximum relative water content (86.15%) and maximum days for fifty percent wilting (17.6 days) and the flowers remained fresh for 21 days. Whereas the flowers without packaging and kept at ambient temperatures lost their shelf life within 2 days. In the present experiment beneficial effects of the combination of packaging and low temperature storage helped to create the modified atmospheric condition (low temperature and high relative humidity) and resulted to maintain a better quality flower for a longer time.
The present study investigates chemical composition, mineral and nutritional value of Bischofia javanica seed cultivated in northern India. The seed contains protein 18.69%; carbohydrates 18.91%, crude fiber 5.32% and ash 6.83%. The seed contains phosphorous 391.4 mg/100 gm, calcium 710 mg/100 gm, magnesium 610 mg/100 gm, copper 2.43 mg/100 gm, Iron 2.33 mg/100 gm, potassium 1.25 mg/100 gm, zinc 1.4 mg/100 gm and sodium: 0.08 mg/100 gm .The physico-chemical characteristics of seed oil measured include saponification value: 289.3, iodine value 178.3, acid value 6.59 (mg KOH/gm) refractive index: 1.48. The yield of seed oil was 20.1%, The oil extracted from the seeds of Bischofia javanica was analysed for its chemical composition by Gas chromatograph mass spectroscopy (GCMS), The fatty acids in seed oil were identified as- Linolenic acid 56.76%, Palmitic acid 12.28%, Linoleic acid 12.90%, Oleic acid 12.19%, and Stearic acid 3.86%.This study conclude that Bischofia javanica seeds are good source of food nutrients such as: minerals, proteins and carbohydrates. The seed oil of Bischofia javanica is an important source of essential omega 3 fatty acid i.e. linolenic acid.
The present investigation was carried to study the efficacy of nutrients and biostimulants on flowering and yield attributes in tuberose cv. Bidhan Rajini-1. The experiment consisted of four biostimulants viz., Humic acid, Fulvic acid, Potassium humate, Arka Microbial Consortium in combination with nutrients. Further regarding the flower yield contributing parameters, the application of 75% RDF along with Humic acid-12% (3ml/l) resulted in maximum number of spikes per clump (3.30), number of florets per spike (66.0), weight of individual florets (2.56gm) and 100 flowers weight (256.6gm), loose flower yield plot-1 (17.67kgs) and flower yield ha-1(44 t) followed by 100% RDF (200kg each of NPK).
'%3e%3ccircle r='20' fill='%23008'/%3e%3ccircle r='17.5' fill='%23fff'/%3e%3ccircle r='3.5' fill='%23008'/%3e%3cg id='d'%3e%3cg id='c'%3e%3cg id='b'%3e%3cg id='a' fill='%23008'%3e%3ccircle r='.875' transform='rotate(7.5 -8.75 133.5)'/%3e%3cpath d='M0 17.5.6 7 0 2l-.6 5L0 17.5z'/%3e%3c/g%3e%3cuse xlink:href='%23a' transform='rotate(15)'/%3e%3c/g%3e%3cuse xlink:href='%23b' transform='rotate(30)'/%3e%3c/g%3e%3cuse xlink:href='%23c' transform='rotate(60)'/%3e%3c/g%3e%3cuse xlink:href='%23d' transform='rotate(120)'/%3e%3cuse xlink:href='%23d' transform='rotate(-120)'/%3e%3c/g%3e%3c/svg%3e)
