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Samadia, D K; Khandelwal, R C

NRC for Arid Horticulture, Bikaner, India.

Key words: crop yield, cultivars, genetic variation, heterosis, hybrids, yield components

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 32-36.

Abstract: Heterosis studies on 9 bottlegurd (Lagenaria siceraria) cultivars (Banswara Local-1 (BL-1), Long White Prolific, Pusa Naveen, Raichur Local-1, Udaipur Local-1, IC 92352A, IC 92374, IC 42361 and PSPL), including their 36 F1 hybrids and cv. Varad as the control cultivar, were carried out under 4 environments created by sowing on two dates and at two locations in a field experiment conducted in Rajasthan, India. The analysis of variance indicated the presence of significant genetic variability among the experimental materials. The hybrids BL-1 x IC 92374, BL-1 x Pusa Naveen, and IC 92374 x PSPL were superior and exhibited significant economic heterosis for fruit yield per plant and yield components such as number of fruits and female flowers per plant. Most of the heterotic crosses were also heterobeltiotic.
Gorakh Singh; Singh, A K; Shailendra Rajan

Central Institute for Subtropical Horticulture, Rehmankhera, P. O. Kakori, Lucknow - 227 107, India.

Key words: application date, crop yield, cultivars, flowering, fruits, growth, guavas, photosynthesis, pruning, shoots

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 37-40.

Abstract: A trial was conducted in Uttar Pradesh, India, to determine the effect of pruning dates on guava fruit yield. During 1991-93, fifteen trees, each of cultivars Sardar and Allahabad Safeda were pruned in the first week of February, March, April, May and June. During 1994-95, nine trees each of Allahabad Safeda and Sardar were pruned on 15 and 30 April, May and June. Six trees, each of Allahabad Safeda and Sardar were pruned on 15 and 30 May and June during 1995-96. Six trees each of Allahabad Safeda and Sardar were pruned during 1996-98. Compared to pruning in February and March, pruning from April through June, enhanced the number of shoots and flowering percentage. Shoot growth was reduced in May- and June-pruned trees. The total yield during winter increased significantly (P0.05) in May- and June-pruned trees than the unpruned trees of both cultivars. May pruning significantly increased the harvest in the winter season. Pruning from February to March did not respond well for winter fruiting. Penet
Dinesh, M R; Reddy, B M C

Division of Fruit Crops, Indian Institute of Horticultural Research, Bangalore - 560 089, India.

Key words: colour, crop quality, cultivars, epidermis, fruits, guavas, hybridization, seeds, titratable acidity

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 41-43.

Abstract: Thirty-seven accessions of P. guajava and 6 Psidium species (P. chinensis, P. quadrangularis, P. molle, P. cattleianum, P. guineense and P. friedrichsthalianum) were studied for fruit weight, volume, length, breadth, total soluble solids (TSS), titratable acidity, skin colour and pulp colour. Cultivar Kamsari had the highest fruit weight. The TSS was highest in the cultivar Bangalore Local (12.70 degrees Brix), however, this cultivar has hard seeds. In most of the cultivars, the skin colour was yellow and cultivars such as Apple Colour and Chittidar had red spots on the skin. The cultivars Beaumont, EC- 147039, 147037, 162904, 147036, 147034, G-6, Kamsari, Pati, Portugal, Red Flesh had pink to red flesh colour. P. quadrangularis and P. guinees produced large fruits. The TSS was highest in P. friedrichsthalianum. The hybridization programme carried out has resulted in the isolation of one superior red-fleshed cultivar H-21.
Vishal Nath; Bhargava, R

National Research Centre for Arid Horticulture, Bikaner - 334 006 (Rajasthan), India.

Key words: climate, cultivars, ecosystems, geography, relative humidity, ripening, temperature, varietal reactions

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 44-47.

Abstract: The variations in the ripening time of jujube (Z. mauritiana) cultivars Gola, Kaithali, Banarsi Kadaka, Umran, Mundia and Seb under the arid regions of Anantapur, Andhra Pradesh; Sardarkrushinagar, Gujarat; Jobner, Jodhpur and Bikaner, Rajasthan; and Hisar, Haryana, India were determined. Meteorological data, including the minimum and maximum temperature, and morning and evening relative humidity were recorded during 1986-90 in all locations except for Bikaner for which meteorological data were recorded during 1994-98. Irrespective of cultivars, the peak ripening of jujube was between the last week of November and the first week of January in the southern region of India and between the 10th of January and 30th of March in the northern regions of India. The prevailing maximum (23.3-34.4 degrees C) and minimum (6.2-19.1 degrees C) temperatures, the temperature difference of 11.9-18.3 degrees C and the morning relative humidity of 49.6-87.7% that lasts for at least a month induced the peak ripening in jujube. T
Bijimol, G; Singh, A K

Department of Horticulture, Nagaland University, Medziphema - 797 106, Nagaland, India.

Key words: application rates, corms, crop quality, flowering, flowers, nitrogen fertilizers, row spacing, spikes, vase life, water uptake, yield components

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 48-50.

Abstract: An experiment was conducted to assess the effect of spacing and nitrogen levels on flowering, flower quality and vase life of gladiolus cv. Red Beauty. Four spacings (15x30, 20x30, 25x30 and 30x30 cm) and four nitrogen rates (0, 100, 200 and 00 kg/ha) were taken. Corms planted at 25x30 cm and 200 kg N/ha significantly increased the diameter of spike, number of florets per spike, number of spikes per plant and number of spikes per ha and early emergence of spike under field conditions (Nagaland, India). Application of 200 kg N/ha also resulted in maximum length of spike and diameter of floret. However, early opening of flower was recorded with lower N rate (100 kg/ha), while length of floret with 300 kg N/ha. Spacing and N levels had significant effect on postharvest life of cut gladioli. Spacing 25x30 cm had striking effect on percent opening of florets per spike, number of open florets with drooping of minimum florets. N at 200 kg/ha had significant effect on percent opening of florets per spike, number of o
Jana, B R

Department of Fruit Breeding and Genetic Resources, Dr. Y. S. Parmar University of Horticulture and Forestry, Solan 173 230, HP, India.

Key words: apples, cross pollination, cultivars, fruit set, self incompatibility, self pollination

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 51-52.

Abstract: Self incompatibility, one of the main problems causing low productivity of apple, was studied to determine the suitable pollenizer cultivar. The experimental materials used included 8- to 9-year-old apple trees of cultivars Anna, Aziza, Red Baron, Spur Red Delicious, EC161286, EC161287 and unknown (standard tree having greenish yellow fruit) as the pollenizers and four cultivars Red Baron, Spur Red Delicious, EC161286 and EC161287 as the female parents. Data on self pollination were recorded in first year to facilitate cross pollination in the following year. Controlled pollination was done following the standard method of emasculation and pollination on selected flower clusters. Fruit set was calculated 45 days after pollination. In terms of self pollination, Red Baron recorded the highest fruit set (5.76%) while EC161286 recorded the lowest fruit set (2.09%). EC161287 and Spur Red Delicious recorded 2.80 and 3.24% fruit set, respectively. In cross combinations, the highest fruit set (76.17%) was observed in
Srinivas, T R

National Bureau of Plant Genetic Resources, Regional Station, Hyderabad - 500 030, India.

Key words: calyx, corolla, crop yield, flowering date, flowers, fruit set, fruits, germplasm, inflorescences, morphometrics, plant hairs, plant morphology, stamens, styles, tomatoes

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 53-55.

Abstract: The flowers of 188 exotic tomato germplasms were characterized and evaluated in Andhra Pradesh, India, during 1997-98. Of the accessions, most were of the same level as stamen type of flowers (SLASF; 40.34%), followed by the inserted (INSF; 24.36%), the slightly exerted (SEF; 22.69%) and the highly exerted type of flowers (HEF; 12.61%). Majority of the accessions (96.64%) had simple style shape and style hairiness. Among the flower types, the average corolla and stamen length were highest in HEF (9.96 and 7.59 mm, respectively). Calyx length was highest and lowest in the INSF (7.80 mm) and HEF (5.69 mm), respectively. The variability in corolla length was highest in INSF, while variability in calyx and stamen lengths was highest in HEF. The average number of days to flower was highest in SEF (64.6), followed by INSF (64.4), HEF (63.2) and SLASF (61.8). The variability for days to 50% flowering was highest in SLASF. The average flower number per inflorescence and the average fruit number per cluster was highes
Reddy, Y T N; Khan, M M

Division of Horticulture, University of Agricultural Sciences, GKVK, Bangalore - 560 065, India.

Key words: application rates, chlormequat, crop yield, fruits, mepiquat, paclobutrazol, plant growth regulators, plant water relations, sapodillas, stomatal resistance, transpiration, water content

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 56-57.

Abstract: A study was conducted to determine the effect of paclobutrazol, Cycocel [chlormequat] and Chamatkar [mepiquat chloride] on the water relations and fruit yield of sapota (A. sapota [Manilkara zapota]) cv. Kalipatti at the Horticultural Research Station of the University of Bangalore, Karnataka, India. Treatments comprised 250, 500 and 750 ppm Cycocel; 1000, 2000 and 3000 ppm Chamatkar; 1.25, 2.50 and 5.00 g paclobutrazol; and control (water spray or no spray). Paclobutrazol, Cycocel and Chamatkar were effective in improving water relations and fruit yield of sapota. Paclobutrazol at 5 g was the most effective. All growth regulators increased the relative water content and decreased the transpiration, but the most pronounced effect was with 5 g paclobutrazol. None of the growth regulators affected the stomatal resistance. The growth regulator treatments affected the second year fruit yield, unlike the first year fruit yield. The highest fruit yield on the second year (56.3 kg/plant) was obtained with 5 g paclob
Pan, R S; Prasad, V S R K; Mathura Rai

ICAR Research Complex for Northern Region, HAFRP, Ranchi - 834 010, India.

Key words: crop yield, cultivars, flowering, genetic stability, maturity, peas, pods, varietal reactions

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 58-59.

Abstract: The phenotypic stability of pea cultivars DRP-3, VL-3, JP-83, KS-226, KS-225, Bonneville and HC-30+36 was evaluated in a field experiment conducted in Ranchi, Bihar, India during 1994-98 to identify stable and high-yielding cultivars suitable for late sowing. Significant differences among the cultivars tested in terms of crop yield, number of days to flowering, pod length and breadth, seed number per pod, 100-green seed weight and shelling percentage were observed. KS-225 was stable for green pod yield under late-sown, favourable conditions, and for pod length and breadth under unfavourable environments. DRP-3 was stable for early flowering under favourable environments. KS-226 was stable for pod breadth and number of seeds per pod under unfavourable environments. VL-3 and JP-83 were stable for number of seeds per pod under unfavourable environments.
Singh, D B; Attri, B L; Sharma, T V R S; Sreekumar, P V

Central Agricultural Research Institute, Port Blair - 744 101 (Andamans), India.

Key words: acidity, ascorbic acid, carotenoids, fruits, jackfruits, nutritive value, sugars, wild relatives

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 60-62.

Abstract: Pulps of 28 wild fruits from Andaman and Nicobar Islands, India, were analysed for their total soluble solids (TSS), acidity, ascorbic acid and carotenoid content. The data showed that Diospyros pyrrhocarpa (22.0%), Artocarpus integrifolia (21.0%) and Annona reticulata (21.0%) had high TSS. The fruits showed a wide range of acidity and a low value (0.06%) was recorded in Gnetum gnemon and Muntingia calabura (0.16%). The highest total sugars were recorded in Annona reticulata (18.18%), D. pyrrhocarpa (18.18%) and M. calabura (14.28%). Majority of these fruits were rich in ascorbic acid and the highest value was recorded in Artocarpus integrifolia (176.00 mg/100 g). Among the fruits studied, quite a good number were found exceptionally rich in carotenoids and the highest value (1485.00 mg/100 g) was observed in Artocarpus integrifolia, followed by Artocarpus lakoocha [Artocarpus lacucha] (501.41 mg/100 g). The study revealed that these wild fruits are rich in vitamins and essential nutrients and thus, their pro
Misra, A K

Central Institute for Subtropical Horticulture, Rehmankhera, PO. Kakori, Lucknow - 227 107, India.

Key words: application date, chemical control, cultural control, fungal diseases, fungicides, integrated control, mangoes, plant disease control, plant diseases, plant pathogenic fungi, plant pathogens, symptoms

Journal of Applied Horticulture, 2001, volume 3, issue 1, pages 63-68.

Abstract: Powdery mildew caused by Oidium mangiferae, is the most important disease of mango. It is reported from 35 countries in the world and reported to cause up to 90% loss in India. Besides inflorescence infection, it causes different types of symptoms on leaves and fruits. Based on epidemiological studies and control measures conducted for the last 15 years at CISH, Lucknow (Uttar Pradesh, India), a disease cycle and an integrated disease management practice is proposed. Disease can easily be controlled by adopting suitable cultural practices and timely application of spray schedule. As the disease is weather-sensitive, need-based control measures are suggested based on the prevailing environmental conditions.
Subhadrabandhu, S; Yapwattanaphun, C

Department of Horticulture, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand.

Key words: chlorates, crop husbandry, crop production, cultivars, flower induction, flowering, flowering date, irregular bearing, longans, plant growth regulators, sodium chlorate

Journal of Applied Horticulture, 2000, volume 2, issue 2, pages 102-105.

Abstract: The methods of off-season longan production in Thailand are presented: (1) application of potassium chlorate (as soil drench, foliar spray, and trunk or stem injection) and sodium chlorate to regulate flowering, and (2) cultivation of non-seasonal flowering cultivars. The physiological responses of longan to potassium chlorate and orchard management practices are briefly discussed.
Reddy, Y T N; Kurian, R M

Division of Fruit Crops, Indian Institute of Horticultural Research, Hessaraghatta Lake, Bangalore 560 089, India.

Key words: calcium, chemical composition, copper, cultivars, iron, leaves, magnesium, manganese, mangoes, mineral content, nitrogen, nutrient content, phosphorus, plant composition, plant nutrition, potassium, rootstock scion relationships, rootstocks, scions, zinc

Journal of Applied Horticulture, 2000, volume 2, issue 2, pages 106-107.

Abstract: The leaf nutrient status of twelve ungrafted polyembryonic mango cultivars (Bappakai, Chandrakaran, Kensington, Muvandan, Mylepelian, Nekkare, EC 95862, Olour, Kitchner, Kurukan, Vellaikulumban, and Starch), and that of cv. 'Alphonso' grafted onto seven of the aforementioned cultivars, was determined to generate preliminary information on the role of rootstocks in mango nutrition. All seedlings and grafted plants were thirteen years old, growing in a compact block with uniform cultural practices. Differences among polyembryonic seedlings were highly significant for N, P, K, Ca, and Mn, and significant for Mg, Cu, Zn, and Fe. 'Alphonso' scion growing on the polyembryonic rootstocks revealed highly significant differences for N, significant differences for Ca and Fe, and non-significant differences for P, K, Mg, Mn, Cu, and Zn contents in leaves. Vigorous rootstocks, viz., Muvandan, Bappakai, and Olour, resulted in higher leaf nitrogen concentration of 'Alphonso' scion while the least vigorous rootstock viz., V
Orta, A H; Akcay, M E; Erdem, T

Department of Farm Structure and Structure and Irrigation, Faculty of Tekirda Agriculture, University of Trakya, 59030 - Tekirda, Turkey.

Key words: apples, evapotranspiration, growth, irrigation requirements, irrigation water, plant water relations, soil water, surface irrigation, trickle irrigation

Journal of Applied Horticulture, 2000, volume 2, issue 2, pages 108-110.

Abstract: This study was conducted in Turkey in 1997 and 1999 to investigate the effects of different irrigation methods and regimes on the vegetative growth of "Starking Delicious" apple trees under Thrace conditions. Drip and surface (ponding) irrigation methods were the basic treatments while the allowable depletion levels of soil moisture (40% and 70% of available water holding capacity) in 120 cm soil depth were sub treatments. Seasonal evapotranspiration and total amount of irrigation water in drip irrigation plots were lower than those of surface irrigation plots (62.7% and 72.5%, respectively). However, the effect of irrigation regimes on vegetative growth parameters was nonsignificant. Drip irrigation gave better results than surface irrigation when irrigation water requirements, evapotranspiration, and vegetative growth parameters were evaluated together. In conclusion, it can be suggested that drip irrigation should be preferred for apple trees under Thrace conditions and irrigation water should be applied w
Pradeep Kumar; Singh, H K

Department of Horticulture, Narendra Deva University of Agriculture & Technology, Kumarganj, Faizabad - 224 229 (U.P.), India.

Key words: bitertanol, chemical control, copper oxychloride, crop quality, crop yield, cultivars, fruit drop, fruits, fungal diseases, fungicides, mancozeb, phytotoxicity, plant disease control, plant diseases, plant pathogenic fungi, plant pathogens, tridemorph

Journal of Applied Horticulture, 2000, volume 2, issue 2, pages 111-112.

Abstract: Field experiments were conducted in 1995-96, 1996-97, and 1997-98 at Faizabad, Uttar Pradesh, India, with aonla (Emblica officinalis [Phyllanthus emblica]) cultivars NA-7 and Kanchan to determine the effective fungicides against aonla rust (caused by Ravenelia emblicae). Pooled data revealed that all tested fungicides, except tridemorph, reduced the rust percent disease index (PDI; 0.69-16.83 and 1.17-14.04) over the control (25.45 and 17.65) in NA-7 and Kanchan, respectively. Indofil M-45 (mancozeb; 0.3%) applied thrice during September-October was most effective (0.69 and 1.17 PDI; 97.37 and 93.22 percent disease control or PDC), followed by Baycor (bitertanol; 3.22 and 6.34 PDI; 84.79 and 67.46 PDC) and Blitox-50 (copper oxychloride; 3.55 and 7.13 PDI; 84.69 and 62.22 PDC). Improvement in fruit size was also recorded for these fungicides. Tridemorph showed toxic effects by causing heavy premature fruit drop. NA-7 was most sensitive as there were less healthy fruits left for recording the yield.

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