Browsing by Author "Nisha, S K"

Filter results by typing the first few letters
Now showing 1 - 5 of 5
  • No Thumbnail Available
    Item
    Evaluation of cherry tomato (Solanum lycopersicum L. var cerasiforme) genotypes for growth yield and quality under protected condition
    (Department of Vegetable Science, College of Agriculture,Vellayani, 2023-12-26) Naveen Kumar, M B; Nisha, S K
    The study entitled ‘Evaluation of cherry tomato (Solanum lycopersicum L. var. cerasiforme) genotypes for growth, yield and quality under protected condition’ was carried out at the Department of Vegetable Science, College of Agriculture, Vellayani, from November 2022 to June 2023. The objective of the study was to identify cherry tomato genotypes with high yield and quality under protected condition. The experimental material consisted of twenty nine cherry tomato genotypes collected from different parts of India. Pusa Cherry Tomato-1 was used as standard check. The experiment was laid out in randomized block design with two replications. Analysis of variance revealed significant difference among the twenty nine genotypes for all the characters studied. The highest plant height at 120 DAT was recorded in Pusa Golden Cherry Tomato-2 (257.17 cm) which was on par with Punjab Kesar Cherry (248.50 cm), Punjab Sona Cherry (244.33 cm), SLc-20 (242.33 cm), Punjab Red Cherry (239.33 cm), EC-549819 (238.67 cm), Pusa Cherry Tomato-1 (236.83 cm) and SLc-27 (235.67 cm). Lowest plant height (120 DAT) was observed in IIHR-2861 (109.67 cm) which was on par with IIHR-2857 (111.50 cm). The genotype EC-549819 recorded the highest number of primary branches per plant (15.00) and was on par with SLc-20 (14.00). IIHR-2857 was the earliest to 50 per cent flowering (20.00 days) which was on par with Punjab Kesar Cherry (21.00 days), SLc-22 (21.50 days), SLc-25 (21.50 days) and SLc-20 (22.00 days). The highest number of flower clusters per plant was observed in EC-549819 (47.17) which was on par with SLc-14 (45.84), SLc-16 (44.50) and SLc-20 (42.67). The check, Pusa Cherry Tomato-1 exhibited highest number of flowers per cluster (113.17). The highest number of fruits per cluster was recorded in Punjab Red Cherry (18.00) which was on par with the check, Pusa Cherry Tomato-1 (17.00). Punjab Kesar Cherry was the earliest to harvest (59.50 days) which was on par with IIHR-2857 (61.00 days), SLc-17 (61.00 days), IIHR-2859 (61.50 days), IIHR-2860 129 (62.00 days), SLc-25 (66.00 days), SLc-21 (67.00 days), SLc-14 (69.50 days), SLc 28 (70.00 days), Pusa Cherry Tomato-1 (70.00 days) and SLc-2 (70.50 days). The highest number of fruits per plant was observed in Punjab Red Cherry (173.00). IIHR-2862 recorded the highest fruit length of 4.40 cm, which was on par with SLc-18 (4.38 cm) and IIHR-2863 (4.27 cm). SLc-18 recorded the highest fruit girth of 4.58 cm. The highest fruit weight of 33.17 g was recorded in SLc-18 followed by IIHR-2861 (22.33 g) and SLc-27 (19.41 g). The lowest number of locules per fruit (2.00) was observed in EC-549819, Punjab Kesar Cherry, SLc-14 and the check, Pusa Cherry Tomato-1. The highest pericarp thickness was observed in IIHR-2863 (3.60 mm) which was on par with IIHR-2861 (3.55 mm). SLc-25 exhibited the highest 100 seed weight of 0.35 g. The highest number of days for final harvest was observed in Punjab Red Cherry (164.00 days). The highest yield per plant was recorded in IIHR-2863 (1.24 kg) which was on par with IIHR-2861 (1.21 kg). The number of fruits per kg was highest in EC-549819 (1605.67). The highest TSS of 7.35 0Brix was recorded in IIHR-2857 followed by Punjab Kesar Cherry (6.85 0Brix), Punjab Red Cherry (6.35 0Brix), IIHR-2866 (6.25 0Brix) and Pusa Golden Cherry Tomato-2 (6.20 0Brix). Lycopene content was highest in IIHR-2861 (9.51 mg 100g-1). The highest ascorbic acid content was recorded in IIHR-2863 (38.58 mg 100g-1). The highest reducing sugars was recorded in IIHR-2857 (5.92 per cent) which was on par with Punjab Kesar Cherry (5.63 per cent). Non reducing sugar content was the highest in SLc-2 (1.56 per cent). The estimates of PCV and GCV were high for plant height at 30 DAT, primary branches per plant, flower clusters per plant, flowers per cluster, fruits per cluster, fruits per plant, fruit length, fruit girth, fruit weight, locules per fruit, pericarp thickness, 100 seed weight, yield per plant, fruits per kg, lycopene content, ascorbic acid, reducing sugars and non reducing sugars. Moderate PCV and GCV were observed for plant height at 90 and 120 DAT, days to 50 per cent flowering, days to first harvest, days to final harvest and TSS. High estimates of heritability coupled with high genetic advance as per cent of mean were recorded for all the yield components. Yield per plant exhibited significant positive correlation at genotypic and phenotypic levels with pericarp thickness, fruit length, fruit girth, fruit weight and fruits per cluster. Path coefficient analysis revealed that fruit length exerted highest positive direct effect on yield per plant followed by pericarp thickness, number of fruits per plant, flower clusters per plant, flowers per cluster and fruit weight. Sensory analysis revealed that Punjab Kesar Cherry ranked first for appearance and colour, whereas IIHR-2857 exhibited the highest mean score for flavour, taste, texture and overall acceptability. Based on the yield, quality and sensory evaluation, the genotypes IIHR 2857, IIHR-2863, Punjab Red Cherry, SLc-2 and IIHR-2862 were found best performing and suitable for growing under protected condition.
  • No Thumbnail Available
    Item
    Evaluation of watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] genotypes for growth, yield and quality
    (Department of Vegetable Science, College of Agriculture, Vellayani, 2021) Pavithra, M O; Nisha, S K
    The present investigation entitled “Evaluation of watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] genotypes for growth, yield and quality” was carried out at the Department of Vegetable science, College of Agriculture, Vellayani from December 2020 to April 2021 to evaluate the performance of watermelon genotypes for growth, yield and quality. The experimental material consisted of 30 watermelon genotypes, including seventeen hybrids and thirteen varieties. Saraswati, the best performing hybrid and Sugar Baby the best performing variety from the previous research work conducted at Department of Vegetable Science was used as standard check for hybrids and varieties respectively. The experiment was laid out in RBD with two replications. Analysis of variance revealed significant difference among the seventeen hybrids and the thirteen varieties for all the characters studied. Among hybrids and check, the longest vine length was observed in Swarna (5.99 m) and the shortest in Jannat (2.84 m). The hybrid Prachi produced highest number of branches per vine (16.84). The highest internodal length was recorded in Jannat (12.95 cm). Jannat was the earliest to first male and female flower production (31.40 DAS and 37.70 DAS respectively), which was on par with Mannat, WHS-20011 and Saraswati. The lowest node to first male flower was recorded in Yellow Lion (3.20) and the hybrids WHS-20011 (3.50), Prachi and Yellow Angel (3.60) were on par with it. The hybrid Yellow Angel produced the first female flower at earliest node (8.00), which was on par with Prachi (8.10). The highest fruit equatorial diameter was observed in the hybrid Devyani (17.60 cm), which was on par with Shabari (17.50 cm), Jannat (16.85 cm), Anmol (16.75), Yellow Queen (16.75 cm) and Swarna (16.55 cm). The hybrid WHS-20011 recorded the highest fruit polar diameter (28.75 cm) and rind thickness (2.15 cm). The highest fruit weight was recorded in the hybrid Mannat (3.34 kg). Prachi (62.00 DAS) took lowest number of days to first harvest and Jannat (65.00 DAS) was on par with it. Shabari recorded the highest number of fruits per plant (4.20), yield per plant (11.84 kg), yield per plot (82.90) and marketable yield per plot (79.95 kg). The longest crop duration was observed in Swarna (120.50 days) and the shortest in Prachi (87.00 days). The highest number of seeds per fruit was noticed in the hybrid Yellow Lion (315.00), whereas Shonima and Swarna were seedless. Hybrid Mannat exhibited the highest 100 seed weight of 5.05 g, which was on par with Anmol (4.90 g), Jannat (4.85 g) and Devyani (4.70 g). T.S.S content was highest for the hybrid Saraswati (12.25 0B), which was on par with Shabari (11.50 0B). The highest lycopene content was recorded by Mannat (7.61 mg 100g1 ). The highest ascorbic content was noticed in the hybrid Prachi (6.35 mg 100g-1). Reducing sugar content was highest in the hybrid Shabari (3.23 per cent). The highest non reducing sugar content was recorded in hybrid Jannat (3.75 per cent). Among varieties and check, AHW 19 recorded the highest vine length of 5.18 m. Best of All (7.50) produced highest number of branches per vine. Arka Shyama was the earliest for male and female flower production (29.90 DAS and 35.80 DAS respectively). The lowest node to first male flower was recorded in Arka Muthu (3.30) and female flower in Asahi Yamato (10.40), which was on par with Thar Manak (10.60). Durgapura Lal had the highest fruit equatorial diameter of 24.05 cm and AHW 65 recorded highest fruit polar diameter (27.80 cm). Check variety Sugar Baby had the highest rind thickness of 2.10 cm, which was on par with Arka Manik (1.95 cm). The highest fruit weight was noticed in Durgapura Meetha (4.76 kg), which was on par with Sugar Baby (4.67 kg). The variety Arka Shyama (59.00 days) was the earliest for first harvest, which was on par with Thar Manak (62.50 days) and Arka Muthu (63.50 days). Arka Shyama recorded the highest number of fruits per plant (3.00), yield per plant (9.82 kg), yield per plot (98.18 kg) and marketable yield per plot (86.84 kg) and the lowest number of seeds (219.50) The highest crop duration was observed in Durgapura Lal (122.00 days). Crimson Sweet recorded the highest 100 seed weight (12.50 g), which was on par with Thar Manak (12.11 g). Arka Shyama recorded the highest T.S.S (12.65 0B) and lycopene contents (6.40 mg 100g-1). The highest reducing sugar (3.23 per cent) and non reducing sugar (3.85 per cent) was observed in Arka Manik. High phenotypic and genotypic coefficients of variation (PCV and GCV) were observed for the characters vine length, number of branches per plant, internodal length, node to first male and female flower, node to first fruit, fruits per plant, yield per plant, yield per plot, marketable yield per plot, seeds per fruit and lycopene in both hybrids and varieties. High estimates of heritability coupled with moderate to high genetic advance as per cent of mean were recorded for all the yield components, indicating additive gene action. Yield per plant exhibited significant positive correlation at genotypic and phenotypic levels with fruit equatorial diameter, fruit weight and fruits per plant in hybrids, whereas in varieties, fruit weight and fruits per plant exhibited positive correlation with yield. Path analysis of hybrids revealed that fruits per plant exerted the highest positive direct effect on yield followed by days to first harvest, fruit equatorial diameter, node to first female flower, fruit weight, fruit polar diameter and vine length. In varieties, fruits per plant exhibited highest direct effect on yield followed by days to first harvest, weight of hundred seeds, fruit weight and seeds per fruit. Based on the mean performance and sensory evaluation, the hybrids Shabari, Saraswati and Devyani and the varieties Arka Shyama, Arka Muthu and Sugar Baby were found best performing and suitable for growing under Kerala conditions.
  • No Thumbnail Available
    Item
    Performance of Brocoli (brassica oleracea L. var.italica) genotypes for growth, yiled and quality
    (Department of Vegetable Science, College of Agriculture,Vellayani, 2025-01-28) Sandra, K P.; Nisha, S K
    The study entitled ‘Performance of broccoli (Brassica oleracea L. var. italica) genotypes for growth, yield and quality’ was carried out at the Department of Vegetable Science, College of Agriculture, Vellayani, during 2023 to 2025. The objective of the study was to identify broccoli genotypes with high yield and quality adaptable to Kerala conditions. The experimental material consisted of sixteen broccoli genotypes collected from different parts of India. The experiment was laid out in randomized block design with two replications. Analysis of variance revealed significant difference among the sixteen genotypes for all the characters studied. The highest plant height at harvest was recorded in Waltham 29 (71.42 cm) which was on par with Saki (68.47 cm) and Palam Samrudhi (68.09 cm). Saki recorded the highest plant spread at harvest (6024.75 cm2) which was on par with Green Diamond 909 (5758.54 cm2). Highest number of leaves per plant at 30 DAT and at harvest was recorded in Saki (10.84 and 32.51 respectively). Chevalier recorded the highest leaf length at harvest (51.41 cm) which was on par with Saki (49.99 cm). Highest leaf breadth at harvest was observed in Saki (24.22 cm) which was on par with Palam Samrudhi (22.85 cm). The leaf area was the highest in Saki at harvest (1485.54 cm²), which was on par with Chevalier (1439.43 cm²) and Marathon (1379.95 cm²). Marathon recorded the highest stem girth (16.78 cm) which was on par with Saki (15.69 cm). Saki recorded highest foliage weight at harvest (0.60 kg) which was on par with Supreme (0.59 kg), Palam Samrudhi (0.58 kg) and NS 50 (0.53). Highest gross plant weight was observed in Saki (3.05 kg) followed by Palam Samrudhi (2.09 kg). Fiesta was the earliest in head initiation (51.60 days) which was on par with Festival (53.83 days). Minimum days to 50 per cent head initiation was recorded in Festival (54.54 days). Waltham 29 recorded the highest number of days to 50 per cent heading (91.09 days). NS 50 recorded the lowest number of days to head maturity from head initiation (10.00 days) which was on par with Palam Samrudhi (10.60 days), while Waltham 29 (18.10 days) recorded the highest number of days to head maturity from head initiation. Festival was the earliest to harvest (64.40 days) which was on par with Supreme (65.90 days) and Fiesta (66.10 days) and Waltham took the highest number of days to harvest (108.39 days). Palam Samrudhi recorded the highest head diameter (12.25 cm), which was on par with Captain 488 (11.84 cm) and Saki (11.62 cm). The highest head depth was recorded in Saki (9.14 cm). Out of sixteen broccoli genotypes, ten were sprouting type. Among these, Marathon produced the highest number of sprouts per plant (9.00) which was on par with Green Magic (7.99). Green Magic recorded the highest weight for sprouts per plant (58.99 g). Waltham 29 recorded highest stalk length per plant (6.69 cm). The highest net head weight, total head weight, yield per plant, head yield per plot and marketable yield per plot was observed in Saki (360.04 g, 458.01, 360.04 g, 5.54 kg and 4.95 kg respectively). The highest value of harvest index was observed in Palam Samrudhi (0.14), which was on par with Lucky (0.14), Iris Cali 09 (0.13), Waltham 29 (0.13), Festival (0.13), Green Magic (0.12), Captain 488 (0.12) and Saki (0.12). Marathon recorded the highest heading percentage (99.00 per cent) which was on par with Iris (92.5 per cent), Palam Samrudhi (90.00 per cent), Iris Cali 09 (87.50 per cent), Saki (86.00 per cent) and Waltham 29 (82.50 per cent). The highest head size index was recorded in Saki (106.41 cm2) which was on par with Palam Samrudhi (93.83 cm2). Supreme recorded the highest head compactness (40.61 g cm-3) which was on par with NS 50 (37.68 g cm-3), Festival (34.35 g cm-3), Fiesta (34.07 g cm-3) and Saki (32.27 g cm-3). The TSS content was highest in Palam Samrudhi (8.84°Brix), which was on par with Fiesta (8.35°Brix), Marathon (7.78°Brix) and Captain 488 (7.47°Brix). Waltham 29 recorded the highest carotene content (207.22 µg 100 g-1) which was on par with Festival (188.92 µg 100 g-1). Palam Samrudhi recorded the highest ascorbic acid content of (74.77 mg 100 g-1). The highest reducing sugar was recorded in Saki (2.55 per cent) which was on par with Lucky (2.14 per cent). Festival recorded the highest amount of non reducing sugars (0.62 per cent) which was on par with Saki (0.58 per cent). The head colour retention was the highest in Chevalier (3.95 days), which was on par with NS 50 (3.35 days) and Supreme (3.35 days). NS 50 recorded the highest number of days in storage (3.98 days) which was on par with Fantasy (3.38 days). The estimates of PCV and GCV were high for plant height, plant spread, leaves per plant at harvest, leaf length at 30 DAT, leaf area, foliage weight at harvest, gross plant weight, head depth, sprouts per plant, weight of sprouts per plant, stalk length, net head weight, total head weight, yield per plant, head yield per plot, marketable yield per plot, harvest index, percentage heading, head size index, head compactness, TSS, carotene, protein, ascorbic acid and non reducing sugars. Moderate PCV and GCV were observed for leaf length at harvest, leaf breadth at harvest, stem girth, days to head initiation, days to 50 per cent head initiation, days to head maturity from head initiation, days to head harvest, head diameter and shelf life. High estimates of heritability coupled with high genetic advance as per cent of mean were recorded for all traits. Yield per plant exhibited significant positive correlation at genotypic and phenotypic levels with gross plant weight, head size index, harvest index, head depth, head diameter, plant height at harvest, leaves per plant at harvest and plant spread at harvest. Path coefficient analysis revealed that head size index exerted highest positive direct effect on yield per plant followed by gross plant weight, days to head initiation, plant height at harvest, harvest index, sprouts per plant and leaves per plant at harvest. In sensory analysis, Saki ranked first for appearance, colour, flavour and taste, whereas Green Magic exhibited the highest mean score for texture and ranked second for appearance and flavour. Based on the yield, quality, sensory evaluation and selection index, the genotypes Saki and Palam Samrudhi were found best performing and suitable for growing in open field condition.
  • No Thumbnail Available
    Item
    Standardization of agrotechniques for precision farming in watermelon [Citrultus lanatus (Thunb.) Mastum. & Nakai]
    (Department of Olericulture, College of Agriculture, Vellayani, 2017) Nisha, S K; Sreelathakumary, I
  • No Thumbnail Available
    Item
    Standardization of agrotechniques for vertically trained watermelon [Citrullus lanatus (Thunb.)Matsum. & Nakai]
    (Department of Vegetable Science, College of Agriculture ,Vellayani, 2023-05-30) Naveda Murthy; Nisha, S K
    The experiment entitled “Standardization of agrotechniques for vertically trained watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] under rain shelter” was carried out at Department of Vegetable Science, College of Agriculture, Vellayani, Kerala, during the period 2021-2022, to study the effects of spacing, training and pruning on yield and quality of watermelon hybrid ‘Saraswati’ under rain shelter. The treatments were factorial combinations of three planting densities viz., D1- 1.5 m × 0.6 m, D2- 1.5 m × 0.45 m and D3-1.5 m × 0.3 m; two training levels viz., T1– nipping into single vine and T2– nipping into double vine) and two pruning heights viz., P1- pruned at 2 m and P2- unpruned) arranged in randomized block design with two replications and control with horizontal training of vines in open condition. Planting densities significantly influenced all growth parameters while training affected only flowering characters and number of leaves. Plants at wider spacing, D1 recorded longest vine (3.84 m), earliest flowering (15.56 for male flower and 22.41 for female flower), lowest node of flowering (4.68 for male flowers and 13.64 for female flowers), highest number of leaves (14.21 at 20 DAT and 34.63 at 45 DAT), highest chlorophyll content (1.69 mg 100 g-1 at 20 DAT and 2.93 mg 100 g-1at 45 DAT) and highest dry matter production at harvest (29.15 g). Highest leaf area per plant (2211.50 cm2 at 20 DAT and 2266.02 cm2 at 45 DAT) and longest internodes (7.84 cm) were recorded in closer spacing, D3. The chlorophyll content was found to be higher in open condition (3.00 mg 100 g-1) than under rain shelter. All yield parameters other than rind thickness, fruits per plant and seed characters were significantly influenced by spacing. Plants at wider spacing recorded highest value for fruit equatorial diameter (15.15 cm), fruit polar diameter (18.90 cm), fruit weight (2.84 kg), yield per plant (5.50 kg), harvest 86 index (0.79) and longest crop duration (102.62 days). Medium spacing noted least days to first harvest (46.84 days). Closer spacing, D3 had fruits at lower nodes (15.31) and recorded highest values for yield per plot (78.37 kg). Training to single vine recorded earliest flowering (16.79 days for male flower and 23.14 days for female flower) and lowest node of flowering (5.36 for male flowers and 14.36 for female flowers). Training to two vine noted highest number of leaves (13.37 at 20 DAT and 34.43 at 45 DAT) and highest dry matter production at harvest (28.14 g). Plants trained to single vine produced fruits with highest fruit weight (2.84 kg) and longest polar diameter (18.17 cm). However, plants trained to double vine recorded highest number of fruits (2.56), yield per plant (5.28 kg), yield per plot (72.32 kg) and harvest index (0.79). Pruning had significant influence on vine length, days to flowering and number of leaves at 45 DAT. Unpruned plants recorded longest vine (5.00 m), higher number of leaves at 45 DAT (32.98) and highest dry matter production (27.88 g). Pruned plants noted earliest flowering (16.88 days for male flower and 23.24 days for female flower). Pruned pants recorded highest value for fruit polar diameter (18.39 cm) and fruit weight (2.56 kg) while unpruned plants had highest number of fruits per plant (2.26), yield per plant (3.03 kg), yield per plot (69.47 kg) harvest index (0.74) and longest crop duration (115.38). Seeds per fruit and weight of 100 seeds were not significantly influenced by any of the treatments. Among treatment interactions, D×T significantly influenced chlorophyll content at 45 DAT, leaf area index, days to first harvest, number of fruits per plant, fruit weight and dry matter production at harvest. D×P combinations had significant effect on vine length, fruit polar diameter chlorophyll content at 45 DAT, days to first harvest, number of fruits per plant, fruit weight, yield per plant, yield per plot and harvest index. Interaction of P×T and D×T×P influenced chlorophyll content at 87 45 DAT, number of fruits per plant, yield per plant, yield per plot and harvest index. On analysis of economic parameters, highest net returns (Rs. 10,06,729) and B:C ratio (3.02: 1.00) were recorded in double vine unpruned plants at closer spacing (D3) under rain shelter. The study revealed growing watermelon vertically trained watermelon at 1.5 m × 0.3 m resulted in highest yield per unit area (78.37 kg) and B:C ratio (3.02: 1.00). Unpruned plants trained as two vines recorded highest number of fruits per plant, yield per plant, yield per plot and harvest index. So, the present study suggests cultivation of vertically trained watermelon under rain shelter as double vine at closer spacing without pruning the main vine