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Open Access
Evaluation of ornamental bananas and bromeliads for tropical landscapes
(Department of Pomology and Floriculture, College of Horticulture, Vellanikkara, 2007) Hazmin, H; KAU; Valsalakumari, P K
Performance of Bromeliads and ornamental bananas was evaluated at the Department of Pomology and Floriculture, College of Horticulture, Vellanikkara during the period from 2005-2007. The objective of study was to evaluate their suitability under different shade levels and to recommend them for tropical landscapes, interior plantscapes and explore the possibility of production of novel varieties by irradiation and hybridization. Nine Bromeliads and six ornamental bananas were selected for the study. Results of the investigation revealed that among the Bromeliads, Aechmea fasciata, Ananas bracteatus, Bromelia balansae and Dyckia brevifolia can be grown under both open and 50 per cent shade. Aechmea fasciata looked more attractive under shaded condition, but flowering was observed under open condition only. When the temperature was above 34°C, sun scorching was observed on leaves. In Ananas bracteatus the colour of the leaf was more pronounced under open condition but the number of leaves and length and breadth of leaves were more under 50 per cent shade. In Dyckia brevifolia the number of leaves and suckers produced was more under open condition. Though maroon colour was more pronounced under open condition it developed an acceptable colour under shade also. Bromelia balansae looked attractive both under 50 per cent shade and open. Ananas nanus, Billbergia pyramidalis, Cryptanthus zonatus, C.bivittatus and C. bromelioides are suited only under shade with respect to their vegetative and floral characters. In Ananas nanus and Billbergia pyramidalis, longer inflorescences were produced under shaded condition. In Billbergia pyramidalis, it was a desirable character but in Ananas nanus it leads to toppling down of the inflorescence. Performance of Cryptanthus species was better under 50 per cent and 75 per cent shade with respect to the vegetative characters and attractiveness of the plant. The plant looked attractive only under shaded condition. Under open condition sun scorching was observed. Pitcarnea flammea and Tillandsia stricta are suited for open condition than under 50 per cent shade. Pitcarnea flammea flowered only under open condition. The plant is attractive with its flowers only. In Tillandsia stricta the vegetative characters and the colour of the leaves were better under open condition. Flowering was also observed only under open condition. Performance of Bromeliads like Billbergia pyramidalis and Pitcarnea flamea under different media revealed that the growth was better in the media containing equal proportion of sand + vermicompost + cocopeat and coarse sand + sand + vermicompost + cocopeat. These media containing organic matter supplied nutrients and coarse sand provided good drainage revealed that Bromeliads responded well if grown under suitable media. It can also be grown in coconut husk, for display in hanging baskets. Under 50 per cent shade the ornamental bananas looked lanky, less robust with reduced leaf size. Ornamental bananas like Musa oranata, Musa laterita and Ensete ventricosum can better be grown in pots under open condition than under shade. Ensete ventricosum was the best suitable for growing in pots because of its paddle shaped, attractive, glossy green leaves with pink midrib. Under open condition the performance of Musa ornata, M. laterita and Ensete ventricosum were good with respect to vegetative characters. The plants looked robust and flowering was also observed in Musa ornata and M. laterita. The number of bracts and size of the male and female flowers were more for Musa ornata compared to M. laterita, but the number of male flowers was produced more in Musa laterita. M. ornata, M. laterita and Ensete ventricosum can be recommended as landscape plants under tropical areas. Under indoor condition Billbergia pyramidalis performed better compared to Pitcarnea flammea and Tillandsia stricta. It can be kept as potted foliage plant for a period of 47 days. Maximum vase life was recorded for Ananas nanus followed by Pitcarnea flammea and minimum for Billbergia pyramidalis. Musa ornata recorded a vase life of two days. Among these Ananas nanus can be used in flower arrangements, since it has substantially long vase life (19 days). With a view to explore the possibility of improvement by hybridization, pollen fertility and compatibility studies were conducted in Musa sp. The viability of pollen grains was more for Musa ornata (84.0%) compared to Musa laterita (77.0%). They were also compatible and hybrid seedlings were also produced which revealed that new varieties can be evolved and they have great potential for use as landscape plants under tropical areas. Irradiation studies were conducted in Bromeliads and Musa sp. for induction of variability. In Bromeliads, suckers of Billbergia pyramidalis subjected to gamma rays @ 25 Gy gave rise to plants with lesser height, leaf length and leaf breadth. Suckers of Tillandsia stricta did not sprout and all remained healthy. Induction of gamma rays @ 20 Gy on seeds of ornamental bananas resulted in earlier germination. The rhizomes subjected to irradiation did not sprout and all remained healthy even eight months after the treatment. Table 13b. Visual scoring of Bromeliads Sl. No. Name Characters (Score out of 10) Colour and pigmentation of leaves Symptoms of sun scroaching Overall appearance Total score 50% shade Open 50% shade Open 50% shade Open 50% shade Open 1 Aechmea fasciata 7.0 5.0 10.0 2.0 9.0 5.0 26.0 12.0 2 Ananas nanus 8.0 8.0 10.0 10.0 3.0 8.0 21.0 26.0 3 Ananas bracteatus 7.0 8.0 10.0 10.0 7.0 9.0 25.0 27.0 4 Billbergia pyramidalis 8.0 5.0 10.0 5.0 9.0 6.0 27.0 16.0 5 Bromelia balansae 9.0 9.0 10.0 10.0 7.0 7.0 26.0 26.0 6 Cryptanthus zonatus 4.0 3.0 2.0 0.0 2.0 0.0 8.0 3.0 7 Cryptanthus bivittatus 7.0 2.0 10.0 1.0 9.0 1.0 26.0 4.0 8 Cryptanthus bromelioides 7.0 2.0 10.0 1.0 9.0 1.0 26.0 4.0 9 Dyckia brevifolia 9.0 9.0 10.0 10.0 9.0 9.0 28.0 28.0 10 Pitcarnea flammea 7.0 9.0 10.0 9.0 4.0 8.0 21.0 26.0 11 Tillandsia stricta 6.0 9.0 10.0 10.0 5.0 10.0 21.0 29.0
Open Access
Refinement of management practices for jasmine (jasminum sambac L) in humid tropics
(Department of Pomology and Floriculture, College of Horticulture, Vellanikkara, 2007) Smisha, I S; KAU; Sobhana, A
Studies were conducted at the Department of Pomology and Floriculture, College of Horticulture Vellanikkara, to find out the effect of month of pruning and fertilisers on vegetative and floral characters of J. sambac as well as post harvest trials on extending the keeping quality of flowers. Out of different months of pruning, plants pruned in October showed maximum plant height while those pruned in July showed maximum plant spread. Number of primary and secondary branches were highest in April pruned plants which was on par with July pruned plants. There was no significant difference in the number of productive shoots. Yield was highest for January pruned plants. Hundred flower bud weight and flower bud length were also maximum for these plants. The manurial trial included organic manures, inorganic fertilizers and biofertilisers. Plant height was maximum for treatment containing Azospirillum, phosphobacteria and AMF along with NPK 120:240:240.g/plant per year in the initial months but in later months treatments containing neem cake, groundnut cake and poultry manure showed maximum plant height. Plant spread was highest in treatment containing neem cake 100g, FYM 100g and ground nut cake 100g given at monthly intervals. Productive shoots were also maximum in treatments containing neem cake, groundnut cake and poultry manure. Flower yield was also maximum in treatment containing neem cake, groundnut cake and poultry manure. This was significantly superior to all other treatments. Nutrient analysis revealed that the treatment containing chemical fertilizers had maximum amount of available nitrogen and the treatment containing organic manures had maximum amount of phosphorous in soil. Potassium content was maximum for treatment containing Azospirillum and phosphobacteria. In vegetative stage leaf nitrogen, phosphorous and potassium contents were maximum in treatment containing neem cake, ground nut cake and poultry manure. In flowering stage there was no significant difference among the treatments in the case of nitrogen. Treatment containing neem cake, ground nut cake and poultry manure showed maximum value in the case of phosphorous and potassium. Under post harvest studies packaging treatments containing polythene cover with four per cent perforation showed minimum physiological loss of weight followed by the flowers packed in polythene bag without perforation. Flower buds packed in polythene bag remained fresh up to 36 hours. In chemical treatments aluminium sulphate 25ppm delayed wilting by 42hours in both seasons. This was significantly superior to all other treatments. In chilling treatments time taken to wilt was maximum for flower buds kept at temperature of 200C followed by flower buds kept at temperature of 150C.
Open Access
Evaluation of seedlings and clonal progenies of kattupatavalam (trichosanthes cucumerina l) for yiels and quality
(Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, 2007) Sreerekha, M V; KAU; Asha, Sankar M
A study entitled “Evaluation of seedlings and clonal progenies of Kattupatavalam (Trichosanthes cucumerina L.) for yield and quality” was carried out at the Department of Plantation Crops and Spices, College of Horticulture, Vellanikkara, during 2005-2006, to evaluate the seedlings and clonal progenies of Kattupatavalam for growth and yield in open and under shade. The study also aimed at assessing the quality attributes of seedlings and clonal progenies, grown under shade and in the open by comparison with the drug source in the user industry. Results of the study revealed that shade and open conditions had a significant influence on various parameters of growth, yield and quality attributes of seedlings and clonal progenies. Seedlings and clonal progenies also showed significant difference in some growth parameters as well as in yield and quality attributes. Considering main vine length and primary branches per plant, seedlings were superior as compared to clonal progenies. Growing in the open, conferred earliness in flowering, wherein the species registered 66.53 days for flowering. Between subplot treatments, earlier flowering was recorded for clonal progenies as compared to seedlings. Plants grown in the open attained fruit maturity earlier as compared to plants grown under shade. But seedlings and clonal progenies recorded values on par with each other. Highest mean fruit number was recorded for plants grown under shade as compared to plants in the open. Clonal progenies recorded 45.47 mean number of fruits, which was superior to fruit number per plant in seedlings. No significant difference was observed in fruit yield per plant, in plants grown under shade as well as in the open. Similar trend was exhibited by seedlings and clonal progenies as well. Total fresh yield and total dry yield of whole plant, did not differ significantly under shade and in the open. It was also revealed that, seedlings and clonal progenies registered values on par with each other, on the above two yield parameters. Shorter crop duration was recorded in plants grown under shade (111.07 days) as compared to plants in the open. Clonal progenies recorded shorter crop duration as compared to seedlings. Fresh weight of soxhlet extractables was highest for plants grown under shade (0.312g). Clonal progenies recorded 0.358 g of soxhlet extractables, which was superior to that of seedlings. It was found that, shade and open conditions had no influence on the fresh weight of hot water extractables. Considering subplot treatments, clonal progenies recorded higher mean weight of hot water extractables (0.929). Market samples yielded 0.718g of hot water extractables and 0.213 g of soxhlet extractables. Tissue culture derived plants grown under shade, registered cucurbitacin of low molecular weight, while high molecular weight cucurbitacin was recorded in seedlings grown in the open. Intermediate types of cucurbitacin were expressed by clonal progenies in the open, seedlings under shade and market samples. Cucurbitacin content was more for clonal progenies grown under shade, while least quantity was observed in seedlings grown in the open. Market sample yielded five units of cucurbitacin, which was superior to cucurbitacin content of seedlings grown in open. On further biochemical analyses, it was revealed that, other secondary metabolites like alkaloids, phenols, tannins and saponins were present in domesticated samples as well as in market samples. Quantification of terpene revealed that tissue culture derived plants grown under shade registered higher amount of terpenes (13 units) than others. With regard to anatomical studies of experimental samples, no difference in anatomy of stem, root and leaf sections of domesticated samples and market samples was noted. The study conclusively proved that, Trichosanthes cucumerina can be ideally raised as a profitable intercrop in the coconut gardens of Kerala and that performance of tissue culture derived plantlets was comparable to seedlings. Also, market sample did not reveal presence of adulterants, as indicated by qualitative as well as anatomical investigations.
Open Access
Production physiology of polyhouse tomato (Lycopersicon esculentum Mill)
(Department Of Olericulture, College Of Horticulture, Vellanikkara, 2007) Margaret, Thomas; KAU; Indira, P
Investigation on physiological attributes of yield in tomato was carried out at Department of Olericulture, College of Horticulture, Vellanikkara, Thrissur during October 2005 to February 2006 under two different growing conditions (polyhouse and open field). The experiment was laid out in Randomised Complete Block Design with four replications. Indeterminate LE 643 and semideterminate Anagha were the varieties used for the study. The study revealed that crop raised in polyhouse showed more plant height (upto 30 DAT) and internodal length. Number of branches was higher in open field. Relative Growth Rate and Net Assimilation Rate were higher in open field compared to polyhouse at initial stages but at later stages, reverse situation was noticed. Crop growth Rate and LAI were maximum in polyhouse condition. Number of inflorescences and fruits per plant, number of harvests per plant, single fruit weight and fruit yield per plant were observed higher in polyhouse. Maximum temperature and RH at morning had positive significant correlation with vegetative characters and number of inflorescences irrespective of growing condition. Maximum temperature and light intensity had significant correlation with days to flower. Rainfall showed negative correlation with plant characters. Canonical correlation revealed that crop characters were more related to the weather parameters under polyhouse condition. Significant partial correlation was noticed between crop yield and maximum and minimum temperature in polyhouse. Relative humidity at morning and light intensity had variety specific correlation with yield. Pests and diseases incidence was comparatively higher in polyhouse condition due to higher temperature but cracking percentage was higher in open field. The fruit appearance and quality were comparatively better in polyhouse condition.
Open Access
Performance analysis of bush lablab bean (Lablab purpureus (L.) sweet
(Department of Olericulture, College of Horticulture, Vellanikkara, 2007) Sreekanth, K S; KAU; Baby Lissy Markose
An experiment was carried out at the College of Horticulture, Kerala Agricultural University, Vellanikkara during September 2006 – May 2007 to analyze the performance of bush lablab bean (Lablab purpureus (L.) Sweet.). The major objectives of the study were to genetically catalogue the available germplasm and to study the genetic variability, divergence, heritability, genetic gain and correlation of different traits with yield. Twenty five accessions collected from different parts of the country were grown in randomized block design with three replications. The 25 accessions were catalogued based on the descriptor for lablab bean. Significant differences for all the characters viz. plant height, plant spread, number of primary branches, leaf length, leaf width, pedicel length, days to1st flowering, days to 50 per cent flowering, pod setting per cent, pod length, pod girth, pod thickness, pod weight, number of seeds pod-1, number of pods plant-1, yield plot-1, 100 seed weight, shelling per cent, crude fibre and crude protein content were noticed among the accessions. The accession LP-26 was found to be the highest yielder (4.5 kg plot-1) coupled with high pod setting per cent (40.23) and number of pods plant-1 (227.33) during rabi. The accession LP-4 was found to be the best yielder during summer (1.15 kg plot-1) and the second best yielder (3.33 kg plot-1) coupled with second best pod setting per cent (38.00) and number of pods plant-1 (198.27) during rabi. Highest pod length (9.98 cm), pod girth (5.47 cm) and pod weight (4.61 g) was observed in the accession LP-27. Better shelling per cent (86.57) was expressed by the accession LP-7. Earliness (27.77 days) and highest number of seeds pod-1 (6.40) was shown by the accession LP-16. The qualitative characters like crude protein and crude fibre content was found to be highest in accessions LP-1 and LP-21 respectively. Highest genotypic coefficient of variation and phenotypic coefficient of variation was observed for number of pods plant-1. High heritability coupled with genetic gain was noted for all the morphological, reproductive and qualitative characters. The 25 accessions were grouped into five clusters and no parallelism between geographical distribution and genetic diversity was observed. A selection model was also formulated using these characters. Based on this the accession LP-26 (a pulse type) was identified as the best performer for rabi season and LP-4 (a vegetable type) for summer. The accession LP-4 is the second best one for rabi season.
Open Access
Seed yield and quality in Amaranthus as influenced by Planting systems and Harvest stages
(Department of Olericulture, College of Agriculture, Vellayani, 2007) Bindu, L S; KAU; Abdul Vahab, M
The present investigation on “Seed yield and quality in amaranthus as influenced by planting systems and harvest stages” was conducted at the Department of Olericulture and the Instructional Farm, College of Agriculture, Vellayani, Thiruvananthapuram during February - May, 2006. Five planting systems viz., transplanting 25 days, 20 days, 15 days after sowing, broadcasting and line sowing were tried with four harvest stages which were 30, 40, 50 and 60 days after flowering. Majority of the characters were significantly influenced by the direct as well as interaction effects of the planting systems and harvest stages. Among the planting systems the earliest flowering was shown by seedlings transplanted 20 days after sowing. Transplanting 25 days after sowing produced the tallest plants. Maximum seed yield per plot and per plant was found in plants transplanted 20 days after sowing. Seed quality characters like seed recovery percentage, germination percentage and vigour index was also highest in plants transplanted 20 days after sowing. Among harvest stages maximum seed yield per plot and per plant were shown by plants harvested 50 days after flowering while those harvested 30 days after flowering gave the highest seed recovery percentage. Seeds from plants harvested 40, 50 and 60 days after flowering showed high germination percentages with slight differences between the values.
Open Access
Response of pumpkin (Cucurbita moschata Poir.) to foliar application of micronutrients
(Department of Olericulture, College of Horticulture, Vellanikkara, 2007) Vineesh Kumar, K V; KAU; Nirmala Devi, S
The study on Response of (Cucurbita moschata Poir.) pumpkin to foliar application of micronutrients was carried out at Department of Olericulture, College of Horticulture, Vellanikkara, during September 2006 to January 2007 under field conditions. The experiment was laid out in Randomized Block Design (RBD) with three replications. High yielding variety Saras developed by the Kerala Agricultural University was used for the study. The investigation revealed that the plants treated with Fe 100ppm by foliar spray along with soil application of recommended manures and fertilizers recorded highest vine length of 4.25m. The maximum number of branches per plant (3.27) was recorded in treatment T4 which include the soil application of recommended manures and fertilizers along with foliar spray of Mo 50 ppm. The days to first female flower (61.93) was earliest in foliar spray of Multiplex along with recommended manures and fertilizers. The treatment T4 which include the soil application of recommended manures and fertilizers along with foliar spray of Mo 50 ppm recorded minimum number of nodes to produce first female flower (21.80). The minimum sex ratio (male: female) (16.19) obtained in treatment where recommended manures and fertilizers were applied in soil. Among different treatments studied application of recommended manures and fertilizers as per PoP along with foliar spray of Mn 100ppm resulted in minimum number of days (84.33) to first harvest of fruits. Plants treated with Mo 50 ppm and Multiplex 100ppm along with soil application of manures and fertilizers recorded highest number of fruits per plant (1.47). The mean yield per plant was highest (2.79) in treatment T4. The highest yield per plot (55.05kg) was obtained in foliar spray of B 100ppm followed by foliar spray of Mo 50 ppm. The highest value 2.01kg for average fruit weight was obtained in soil application of recommended manures and fertilizers as per PoP. Regarding the flesh thickness B100 ppm foliar spray with soil application of manures and fertilizers recorded highest value of 2.74 cm followed by 2.64 in T4. The fruits of plants treated with B 100 ppm and Zn 100 ppm along with soil application of manures and fertilizers could be stored for maximum days. For vitamin C and β-Carotene content in pumpkin fruits harvested at vegetable maturity, foliar spray of Fe100ppm along soil application of recommended manures and fertilizers recorded highest values of 3.65 mg 100g-1 and 208.25 μg g-1 respectively. It can be concluded that foliar spray of micronutrients on pumpkin enhanced the growth, yield and quality parameters. The importance of FYM in crop production was also observed between the treatments. Among different treatments T2 and T4 was found better for yield when compared with other treatments. The treatments T6 (T1 + Iron 100 ppm) was found to be the best for quality parameters like vitamin C and β-Carotene content.
Open Access
Assessment of variability and compatibility in tagetes spp.
(Department of Plant Breeding and Genetics, College of Horticulture, Vellanikkara, 2007) Kishore, Boddu; KAU; Sujatha, R
The present investigation on “Assessment of variability and compatibility in Tagetes spp.” was carried out in the Department of Plant Breeding and Genetics, College of Horticulture, Vellanikkara, during 2006 – 2007. The experimental material consisted of 14 accessions of African marigold and seven varieties of French marigold, collected from Andhra Pradesh, Karnataka and Kerala. The major objectives include assessment and interpretation of genetic variability and the inter relationship between different traits, investigation of the reproductive biology and compatibility behaviour between different genotypes, formulation of an efficient selection method for identifying superior genotypes, estimation of the heterotic potential as well as characterization of superior hybrids at biochemical and molecular level along with their parents. A local cultivar from Kapugal (Ka) in Andhra Pradesh had maximum flower yield of 114.69g per plant. On an average, it produced 24.66 flowers per plant with maximum fresh weight of flowers (4.64 g) and flower diameter (4.11 cm). It was closely followed by the accession collected from Ananthagiri (A) (Andhra Pradesh) with an average flower yield of 113.54g per plant. For this accession the number of flowers (31.16) and flower diameter (4.51 cm) were higher than Ka. In French types variety French vanilla had the highest flower yield (29.76 g per plant), followed by Boy O Boy (27.13 g per plant). Highest genotypic and phenotypic coefficients of variation were observed for the character number of whorls of ray florets followed by yield per plant. Heritability and genetic gain were maximum for the characters such as number of whorls of ray florets, fresh weight of flowers, yield and plant height. Correlation studies revealed the traits number of flowers per plant and fresh weight of flowers had strong correlation with yield. Comparison of different genotypes based on the selection index value revealed the superiority of genotypes Kapugal (Ka) followed by Ananthagiri (A) and Thammara (T). The 14 genotypes were grouped into five clusters based on genetic distance. Reproductive biology and compatibility studies showed that there was no self or cross incompatibility in African marigold but in inter specific hybridizations with French types, seed set and germination was lower. Six superior hybrids Th-1 X C-6, Tr-5 X Pil.O-3, Th-6 X Ka-3, Th-1 X A-3, Vk1-5 X Pil.O-4 and Tr-3 X Vk2-3 for the characters plant height, number of whorls of ray florets, number of flowers, fresh weight of flowers and flower yield were selected based on heterobeltiosis and relative heterosis values. There was no much difference between direct and reciprocal crosses except for the character seed set percentage. Biochemical analysis of the selected hybrids and parents for total carotenoid content showed that overall mean of parents was 5.56 mg and that for the hybrids it was 5.54 mg per one gram of fully opened flowers. Molecular characterization of the selected hybrids and parents produced a total of 20 bands with three primers, The bands of approximate size 1375 bp and 1584 bp were present in all the parents whereas 1904 bp band was found in all except Th-6 and A-3. Similarly the bands of approximate size 1375 bp and 1584 bp were shared by all the hybrids except two and 1904 bp was present in all the hybrids except three.
Open Access
Collection, characterization and evaluation of Aloe vera (L.) Burm. f. germplasm
(Department of Plantation Crops and Spices, College of Agriculture, Vellayani, 2007) Abhila, S R; KAU; Jessykutty, P C
The present study titles “Collection, characterization and evaluation of Aloe vera (L) Burm.f.germplasm” was conducted at the Department of Plantation crops and spices, College of Agriculture, Vellayani during the period April 2006 – March 2007. Thirty diverse accessions of aloe were collected from various locations of Kerala and Tamil Nadu> Preliminary evaluation of reference sample plants of each accession were done in terms of morphological and biochemical characters. A final evaluation of morphological, anatomical and biochemical characters were carried out one year after planting in the new environment and association between morphological, biochemical and yield contributing characters were worked out and the accessions were evaluated based on these results. The accessions recorded significant variation for morphological characters like plant height, plant spread, leaf length, leaf breadth, leaf thickness, leaf weight, leaf shape, leaf colour, phyllocrone and suckering. Study of the anatomical characters of the accessions like number of stomata, cuticle thickness, epidermal thickness and mesophyll thickness revealed that there was no significant variation among the accessions with regard to number of stomata and epidermal thickness. Significant difference existed in mesophyll thickness and it was the highest for AV-2 and hence maximum gel yield. Wide variation in biochemical characters such as amino acids, total sugars, fattyacids, vitamin A and C, saponins, minerals such as sodium, potassium, calcium, magnesium and iron content and activity of enzymes like peroxidase and polyphenol oxidase were noticed among the thirty accessions. Yield analysis of the accessions revealed that AV-16, AV-12, AV-2, AV-6, AV-13, AV-30, AV-29, AV-15, AV-9 and AV-7 had superior yield contributing characters. The accessions having superior biochemical characters are AV-5, AV-25, AV-18, AV-23, AV-11, AV-21, AV-24, AV-27, AV-19 and AV-26, hence are superior in quality. By combining yield contributing and quality characters accessions AV-12, AV-16, AV-13, AV-6, AV-15, AV-2, AV-30, AV-19, AV-29 and AV-14 were found to be superior. The accessions AV-16, AV-12, AV-2 and AV-6 were found superior based on morphological characters and morphological and biochemical characters together. Association between morphological, biochemical and yield contributing characters revealed that morphological characters like plant height, plant spread, leaf length, leaf breadth, leaf thickness and leaf weight showed positive association with leaf yield and latex yield. So these characters offer good scope for selection among the present collection of aloe accessions. A location specific evaluation had to be carried out with these aloe accessions in areas with diverse agro climatic situations for evolving a suitable variety.

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