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Vinod Kumar; Bhattacharjee, S K; Suchitra

Division of Floriculture and Landscaping, Indian Agricultural Research Institute, New Delhi - 110 012, India.

Key words: crop quality, cultivars, cut flowers, dimethyl sulfoxide, flowers, roses, storage, vase life, water uptake

Journal of Applied Horticulture, 2002, volume 4, issue 2, pages 99-102.

Abstract: The effects of pulsing with 2% dimethyl sulfoxide and wet cool storage (4 degrees C) for 1-5 days on the postharvest life and quality of rose cultivars Noblesse and Mercedes were determined. The vase life of both rose cultivars subjected to pulsing and wet cool storage was higher compared to that of the control. In general, water uptake and flower diameter of the cut flowers subjected to pulsing and wet cool storage decreased with storage duration, but were higher compared to those of the control.
Dhiraj Vyas; Sharma, A D; Sharma, S K; Sharma, D R

Department of Biotechnology, University of Horticulture & Forestry, Nauni-Solan - 173 230, H.P., India.

Key words: biochemical markers, cultivar identification, cultivars, enzymes, esterases, genetic diversity, isoenzymes, leaves, malate dehydrogenase, walnuts

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 10-13.

Abstract: Leaf isoenzyme patterns were studied in Juglans nigra and 8 cultivars of J. regia (ACO, Blackmore, Gobind, Hartley, KX Giant, Lake English, Payne and Tutle) for their identification in the field. The results showed differences in specific relative mobility values for the various isoenzymes in walnut cultivars. Of the 6 enzyme systems that were localized on native gels, only esterase and malate dehydrogenase showed wide diversity in Rm values for the different isoenzymes. A total of 16 loci and 24 alleles were observed for 5 enzyme systems, out of which 10 loci were polymorphic. J. nigra was found to be more heterozygous and polymorphic than J. regia. PPO I, PRO I and EST III were found as reliable markers for distinguishing the two species of walnut. The values obtained for similarity coefficient were used to make the dendrogram. Among the cultivars of J. regia, the most diverse relationship was found between Tutle and Blackmore, whereas Blackmore and Payne were the most genetically related.
Manna, S; Mathew, B; Hasan, M A; Chattopadhyay, P K

Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal - 741 252, India.

Key words: chemical composition, coconuts, crop yield, cultivars, flowers, husks, hybrids, inflorescences, kernels, nuts, plant composition, seed weight, spikelets, varietal reactions, water content, yield components

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 14-16.

Abstract: The performance of 15-year-old palms of 7 cultivars (Local Tall, Laccadive Micro, West Coast Tall, Straight Settlement Green, Philippines Ordinary, Andaman Ordinary and Laccadive Ordinary) and 3 hybrids (Malayan Dwarf Yellow x West Coast Tall, Malayan Dwarf Orange x West Coast Tall, and West Coast Tall x Malayan Dwarf Orange) of coconut grown in West Bengal, India was evaluated. Malayan Dwarf Orange x West Coast Tall, West Coast Tall x Malayan Dwarf Orange, and West Coast Tall recorded high annual nut yields. Malayan Dwarf Orange x West Coast Tall had the highest number of spadix per plant (9.2), number of female flowers per spadix (102.0), and annual nut yield (161.9 nuts per plant). Principal component analysis revealed 3 sets of characters influencing yield: number of spikelets with female flowers, number of spikelets per spadix, and number of nuts per spadix (for which Local Tall was superior); number of female flowers per spadix and number of female flowers per spikelet (Malayan Dwarf Orange x West Coast
Joubert, F J; Plessis, M H du; Steenkamp, E D; Stassen, P J C

ARC-Institute for Tropical and Subtropical Crops, Private Bag X11208, Nelspruit, 1200, South Africa.

Key words: branches, canopy, crop density, grapefruits, high density planting, lemons, mandarins, oranges, plant training, pruning

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 17-20.

Abstract: Results of a study on the response of Valencia orange, mandarin, lemon and grapefruit cultivar/rootstock combinations to training systems (central leader system for high-density planting and multiple leader system for low-density planting), pruning methods (trees cut back to 50 cm height after planting and trained with new growth; trees shaped after planting without cutting back; trees shaped after 1 year of growth), and planting densities (3.0x1.0, 4.0x1.25, 4.0x1.5, 5.0x2.0 and 5.0x3.0 m, corresponding to 2222, 2000, 1667, 1000 or 667 trees/ha) are presented. The experiment was conducted in Nelspruit (Valencia orange and lemon), Lydenburg (mandarin) and Malelane (grapefruit), South Africa during 1996 and 1997. Pruning back a newly established tree to 50 cm height after planting had negative effects on tree volume and development compared to the other pruning methods. Lemon trees were trained more successfully under the central leader system. Higher levels of manipulation and pruning were necessary when lemo
Nagar, B L; Dashora, L K; Yadava, L P

Department of Horticulture, Rajasthan College of Agriculture, Udaipur, India.

Key words: antitranspirants, application rates, benzyladenine, chemical composition, crop quality, fruit juices, fruits, limes, plant composition, plant growth regulators, postharvest decay, postharvest treatment, storage, storage decay, storage life, storage losses

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 21-24.

Abstract: The effects of ultraviolet radiation (for 0, 5 or 10 minutes), benzylaminopurine [benzyladenine] (BAP; 0, 50 or 100 ppm), and vapour gard (antitranspirant concentrate; 0 or 4%), singly or in combination, on the quality of C. aurantiifolia fruits stored at room temperature (20.0-28.5 degrees C) were studied. Fruit quality parameters were evaluated at 4, 8, 12, 16, 20 and 24 days after treatment. All the treatments resulted in lower physiological weight loss and decay, and greater diameter and juice content during storage compared with the control. The lowest reduction in physiological weight (5.32%) was obtained with ultraviolet radiation for 5 minutes + 100 ppm BAP + 4% vapour gard. Fruits treated with ultraviolet radiation for 5 or 10 minutes + 100 ppm BAP + 4% vapour gard did not exhibit rotting during storage. This treatment also recorded the lowest reduction in fruit diameter (4.67%). Treatment with ultraviolet radiation for 10 minutes + 100 ppm BAP + 4% vapour gard also gave the lowest reduction in juice
Vastrad, N V; Sulikeri, G S; Hegde, R V

Division of Horticulture, University of Agricultural Sciences, Dharwad - 580 005, India.

Key words: application rates, crop yield, curing, ginger, light intensity, light relations, nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, rhizomes, shading, yield components

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 25-26.

Abstract: The yield and yield components of ginger cv. Bidar local under normal (open) and reduced (shaded) light conditions, and 5 fertilizer treatments (recommended fertilizer rate (RFR) of 100:50:50 kg NPK/ha; 75% RFR + 25% vermicompost; 50% RFR + 50% vermicompost; 25% RFR + 75% vermicompost; and 100% vermicompost at 8 t/ha) were studied in Dharwad, Karnataka, India during 1998/99. Reduced light condition (by 40-50%) was obtained by growing dwarf castor bean cv. Aruna as an intercrop at a spacing of 90x30 cm. The average fresh rhizome yield (11.54 t/ha) and cured rhizome yield (3.64 t/ha) were higher under normal light conditions than under reduced light conditions (6.40 and 1.58 t/ha, respectively). Among the fertilizer treatments, 100% RFR recorded the highest average fresh rhizome yield (10.21 t/ha). The application of 75% RFR + 25% vermicompost resulted in an average fresh rhizome yield (9.16 t/ha) which was almost as high. The effect of the interaction between light intensity and vermicompost on fresh rhizome y
Humayun, M; Babu, R S

Department of Horticulture, S.V. Agricultural College, Tirupati - 517 502, Andhara Pradesh, India.

Key words: buds, carbohydrates, carbon nitrogen ratio, chemical composition, cultivars, fruiting, fruits, mangoes, nitrogen, nitrogen content, plant composition

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 27-29.

Abstract: The period of fruit bud differentiation (FBD) in mango cultivars AU-Rumani, Neeleshan, Neeluddin, Baneshan, Bangalora and Neelam grown in Tirupati, Andhra Pradesh, India was studied during 1998 and 1999. In general, FBD commenced on the 3rd week of September and was completed on the 3rd week of November. However, the onset of FBD and peaks of differentiation varied among the cultivars. The first sign of FBD (stage II) was observed in AU-Rumani on the 3rd week of September, and 100% differentiation was observed towards the end of October. In Neeleshan and Baneshan, stage II was observed on the 4th week of September, and 100% differentiation was evident towards the 2nd week of November. In Neeluddin, Bangalora and Neelum, stage II occurred during the 1st week of October, and 100% differentiation was evident on the 2nd and 3rd weeks of November. In general, the total carbohydrate fraction and C/N ratio were greatest at 100% FBD, whereas the total N fraction was lowest during FBD. At FBD, the total carbohydrate f
Tiznado Hernandez, M E; Ojeda Contreras, A J; Sanchez Estrada, A; Moreno Velazquez, D; Mercado Ruiz, J N

Centro de Investigacion en Alimentacion y Desarrollo, Departamento de Tecnologia de Alimentos de Origen Vegetal, Carretera a la Victoria km. 0.6, Apartado Postal 1735, Hermosillo, Sonora, Mexico.

Key words: colour, fruiting, fruits, linear models, mathematical models, maturity stage, peel, prediction

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 3-6.

Abstract: A model for the prediction of fruit development stage in Stenocereus thurberi [Lemaireocereus thurberi] was developed. Fruits were sampled from a field in Hermosillo, Sonora, Mexico, in June and July 1999 and 2000, at 5, 10, 15, 20, 25, 30, 37 and 40 days after anthesis (DAA). A Minolta chromameter CR-300 set was used to quantify fruit skin and pulp colour. A multiple linear model was developed using the stepwise procedure in forward selection. F statistics, mean square error, coefficient of determination, Mallows coefficient, and distribution of residuals around zero were used as indicators of the efficiency of model prediction. The results indicated the possibility of predicting the fruiting stage in S. thurberi in terms of DAA based on fruit pulp and skin characters.
Hazarika, B N; Parthasarathy, V A

Biotechnology Laboratory, ICAR Research Complex for NEH Region, Umiam - 793 103, Meghalaya, India.

Key words: 8 hydroxyquinoline, acclimatization, antitranspirants, chemical composition, daminozide, humidity, in vitro culture, in vitro regeneration, mandarins, micropropagation, plant composition, roots, shoots, silica gel, survival, tissue culture, water content

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 30-32.

Abstract: Microshoots approximately 2.0-2.5 cm long obtained from in vitro cultures of C. reticulata, C. nobilis x C. deliciosa, C. volkameriana and C. reshni were subjected to reduced humidity treatment with silica gel (8 mg), alar [daminozide] (1 or 2 mg/litre) and 8-hydroxyquinoline (1 or 2 mg/litre). After 4 weeks, the plants were transferred to polyethylene bags containing soil and farmyard manure at 1:1. Plant survival was evaluated after 1 week. The application of silica gel adversely affected ex vitro survival. The values of shoot and root growth parameters were lowest under silica gel treatment and highest under the control. Alar and 8-hydroxyquinoline enhanced most of the root and shoot growth parameters. Plant weight was greatest in C. nobilis x C. deliciosa (293.53 mg) and lowest in C. reshni (280.45 mg). Shoot length ranged from 2.8 cm in C. reshni to 3.2 cm in C. reticulata and C. volkameriana. Leaf weight was greatest (30.46 mg) in C. volkameriana. The application of 2 mg 8-hydroxyquinoline/litre was eff
Mini, C; Vahab, M A

College of Horticulture, Kerala Agricultural University, Vellanikkara, Trissure, Kerala - 680 654, India.

Key words: correlated traits, correlation analysis, crop yield, cultivars, earliness, flowering date, fruit set, fruits, genetic correlation, harvesting date, oleoresins, path analysis, yield components

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 33-34.

Abstract: Correlation and path analyses for oleoresin yield and yield components were conducted for C. annuum (CA 653, Arka Lohit, Ujwala and KTPL-19), C. chinense (CA 640 and CA 645), C. frutescens (CA 671 and CA 648) and C. baccatum (CA 670) cultivars grown in Kerala, India during the summer (January-March), rainy (May-July) and winter (September-November) seasons [year not given]. Genetic correlation analysis revealed that oleoresin yield was positively correlated with number of fruits per plant, and negatively associated with number of days to fruit set, flowering and harvesting. The number of days to flowering was positively associated with number of days to first fruit set and first harvest, and fruit yield per plant. The number of days to fruit set had a significant and positive association with number of days to first harvest and negative association with number of fruits per plant. The number of days to harvesting was negatively associated with number of fruits and fruit yield per plant. Path analysis indicate
Naresh Babu; Anamika Sharma

ICAR Research Complex for NEH Region, Nagaland Centre, Jharnapani - 797 106, India.

Key words: ascorbic acid, carotenoids, crop quality, crop yield, cultivars, fruit pulp, fruit set, fruits, length, nonreducing sugars, pawpaws, peel, plant height, reducing sugars, seeds, sugar content, titratable acidity, width, yield components

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 35-36.

Abstract: Plant height and fruit characteristics were evaluated during 1998/99 and 1999/2000 in 12 pawpaw cultivars (Co-1, Co-2, Co-3, Co-4, Co-5, Co-6, Pusa Dwarf, Pusa Delicious, Pusa Giant, Pusa Majesty, Coorg Honey Dew and Honey Dew) grown in Jharnapani, Nagaland, India. Plant height (243.300 cm), and fruit length (38.840 cm), width (43.800 cm) and weight (2445.780 g) were greatest in Pusa Giant. Pusa Delicious recorded the greatest fruit set (55.400%), number of fruits per plant (31.100), and fruit pulp/peel ratio (11.100) and total soluble solids content (14.08%). Peel percentage was lowest in Co-4 (6.560%). Pusa Majesty fruits had the highest seed percentage (0.970%). Fruit yield was highest in Coorg Honey Dew (41.070 kg per plant). Fruit total carotenoids content was highest in Pusa Dwarf (7.730 mg/100 g). Honey Dew fruits were characterized by the greatest total sugar (12.450%), reducing sugar (11.570%) and nonreducing sugar (0.880%) contents, acidity (0.100%), and sugar/acid ratio (124.500). Co-5 fruits had t
Porwal, R; Nagda, C L; Pundir, J P S

Datepalm Research Centre, Rajasthan Agricultural University, Bikaner - 334 006, Rajasthan, India.

Key words: application rates, chemical composition, chlormequat, crop yield, essential oil plants, essential oils, flowering, flowers, growth, growth retardants, maleic hydrazide, plant composition, plant height, pruning, shoots, yield components

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 37-40.

Abstract: The effects of pruning height (10, 20 or 30 cm) and growth retardants (cycocel [chlormequat] and maleic hydrazide at 2000, 4000 or 8000 ppm) on the performance of R. damascena were studied in Udaipur, Rajasthan, India during 1993/94. The growth retardants were sprayed after sprouting (when 4-5 leaves were fully developed on shoots) and at 15 days thereafter. Plant height, plant spread, and number of shoots per plant decreased with the increase in growth retardant concentration and decrease in pruning height (i.e. increase in pruning intensity). The effect of the interaction between pruning and growth retardant on vegetative parameters was not significant except on plant spread, which was greatest (1.15 m2) with a pruning height of 30 cm and 2000 ppm cycocel. Flower yield per plant and per hectare, and oil content were also significantly affected by pruning and growth retardant. The interaction between pruning and growth retardant was also significant except on oil content. The greatest flower yield per plant
Dipendra Gogoi; Gautam, B P

Department of Horticulture, Assam Agricultural University, Jorhat - 785 013, Assam, India.

Key words: branches, crop yield, cultivars, flowering date, flowers, fruit drop, fruiting, fruits, germplasm, inbred lines, leaves, plant height, seed weight, yield components

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 41-44.

Abstract: Fifty-two chilli (C. annuum and C. frutescens) genotypes (cultivars and advanced breeding lines) grown in Jorhat, Assam, India were evaluated for fruit yield and component characters from February to October 1999. The genotypes significantly varied for all the parameters evaluated. Plant height was greatest in Asamia Jalakia (71.21 cm). The number of primary branches was highest in Nadharia (7.83) and Kala J. Long (7.83). Balijuri (190.67), Nadharia (202.83) and Kala J. Long (198.50) had the highest number of leaves per plant. Specific leaf weight was highest in Balijuri (6.62 mg/cm2). The number of days to first flowering was lowest in Soalkuchi (51.83). Khoti Jalakia had the highest number of flowers (662.67) and fruits (278.17) per plant, and fruiting percentage (42.00%). Fruit drop incidence was lowest in Singhasan (0.90%). Jayanti recorded the greatest fruit length (9.71 cm). Fruit diameter was greatest in Tupura Jalakia (1.83 cm), Thupuka Jalakia (1.81 cm) and Bogori Jalakia (1.64 cm). The greatest fres
Chandel, J S; Ananda, S A

Department of Pomology, Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan - 173 230, HP, India.

Key words: budding, buds, growth, pecans, unions

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 45-46.

Abstract: The effects of budding method (annular, chip, Forkert or patch budding) and date (15th or 30th day of May, June, July or August) on bud take success in pecan cv. Mahan were studied in Nauni, Solan, Himachal Pradesh, India during 1995/96. Bud take success was evaluated at 3 months after budding, whereas linear and radial growth were evaluated during the dormant season (at 1 1/2 years after budding). The highest mean percentage of bud take was obtained with annular budding (47.39%) and 30 June (55.92%), and their interaction (82.54%). Patch budding performed on 30 June (73.78%) and 15 July (70.61%) also resulted in high bud take success. The greatest mean linear and radial growth were obtained with annular (124.6 and 7.88 cm) and patch (121.1 7.74 cm) budding, and budding on 15 May (135.3 and 8.47 cm), 30 May (131.3 and 8.16 cm) and 30 June (131.5 and 8.18 cm). In terms of interaction effect, annular budding on 30 June recorded the greatest linear (145.8 cm) and radial (9.04 cm) growth.
Mahajan, B V C; Dhillon, B S

Punjab Agricultural University Regional Research Station, Gurdaspur - 143 521, Punjab, India.

Key words: chemical composition, fruit pulp, fruit set, fruiting, fruits, maturity, plant composition, seed weight, seeds, titratable acidity

Journal of Applied Horticulture, 2002, volume 4, issue 1, pages 47-48.

Abstract: Fruit development was studied in 25-year-old litchi (Litchi chinensis cv. Calcuttia) trees grown in Gurdaspur, Punjab, India. Observations on the physicochemical characteristics of the fruits were recorded from 20 to 60 days after fruit set (DAFS). Fruit size (length and diameter) increased until harvesting. The greatest fruit length (3.9 cm) and diameter (2.9 cm) were recorded at 55 DAFS. Fruit weight rapidly increased up to 40 DAFS, after which fruit weight gradually increased until harvesting. Pulp and seed weight significantly increased up to 55 DAFS. Pulp weight increased slowly up to 30 DAFS, increased at a faster pace at the second phase, then increased very slowly towards the end of sampling. On the other hand, seed weight increased dramatically at the first phase (35 DAFS), then gradually increased thereafter. The content of total soluble solids (TSS) increased until harvest, with the increase being much faster up to 40 DAFS. TSS ranged from 9.0 to 18.3 degrees Brix. A gradual decline in titratable a

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