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Subject: Seed Science and Technology × Start date: 2021 ×
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Now showing 1 - 9 of 9
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    ThesisItemOpen Access
    Seed quality assessment in natural and artificial aged seed of tomato and eggplant
    (CCSHAU, Hisar, 2023-01) Nisha; Bhuker, Axay
    The seed of two important solanaceous crops tomato (Solanum lycopersicum L.) and eggplant (Solanum melongena L.) was procured from Department of Vegetable Science and study was conducted to assess the effect of natural and artificial ageing on seed quality parameters and their correlation and to find out the effect of priming and storage containers on seed quality at Department of Seed Science and Technology, CCS HAU Hisar during 2020-2022. Under natural and artificial ageing storage period most of the seed quality parameters showed decreasing trend as the storage period increased in both cloth and polythene bag. Cloth bag maintained the germination upto 12 months while polythene bag maintained germination up to 15 months above Indian Minimum Seed Certification Standards (>70%). The polythene bag maintained 60.67 & 64.00% germination while in cloth bag it was 55.67 & 60.00% after 18 months of storage under ambient conditions in tomato and eggplant seeds respectively. The other seed quality parameters i.e. seedling length, seedling dry weight, vigour indices, viability percentage, speed of emergence index, seedling establishment, DHA, SOD, CAT, POD were found superior in polythene bag as compare to cloth bag. The mean emergence time and fungus infection was observed less in polythene as compare to cloth bag.The germination percentage after 24 h (72.67, 74.00%) of artificial ageing were found at par with the values of germination after 12 months (73.67, 77.00%) of natural ageing in polythene bag for tomato and eggplant respectively. Seeds primed with GA3 @ 50 ppm can enhance 24.6 percent germination in tomato and 21.2% in eggplant over unprimed seed in 18 months old seed. GA3 @50 ppm is also effective in controlling fungal infection and enhancement of other seed quality parameters i.e. seedling length, seedling dry weight, seed vigour indices, viability percentage, catalase activity, peroxidase activity, dehydrogenase activity, superoxide dismutase activity, speed of emergence index and seedling establishment. It is concluded from the study that polythene bag is a suitable container and GA3@50ppm is suitable priming agent for tomato and eggplant seeds. Germination percentage after 12 months of natural storage can be estimated through accelerated ageing test for 24 hours in tomato and eggplant crop.
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    ThesisItemOpen Access
    Impact of seed treatments on quality of different aged seeds of oat (Avena sativa L.)
    (CCSHAU, Hisar, 2023-07-20) Rohit; V.S. Mor
    The present studies entitled “Impact of seed treatments on quality of different aged seeds of oat (Avena sativa L.)” were carried out at Laboratory and field of Department of seed science and technology, CCS HAU, Hisar. The seed treated with Azotobacter+Phosphate solubilizing bacteria enhanced the seed quality in terms of all parameters of fresh, one year old and two year old seed lot of oat and Chlorpyrifos and their combinations showed negative effect on seed quality. Among the three years seed lots, highest performance were observed in freshly harvested seeds for various seed quality parameters i.e radicle emergence (88.69%), speed of germination (54.33), standard germination (93.46%), seedling length (40.94 cm), seedling dry weight (12.37mg), vigour index-I (3,829.30), vigour index-II (1,156.93), field emergence index (9.75), seedling establishment (69.96%) and plant height (28.75cm) at 30 days whereas, the maximum enhancement in standard germination and vigour indices was observed in one year seed lot and the minimum was observed in fresh seed lot. The correlation study shows that the field emergence of oat had positive and significant correlation with germination percentage, seedling length and seedling dry weight. The seedling establishment was also found significantly correlated with vigour index-I, vigour index- II, field emergence and speed of germination. Similarly, field emergence index was significantly correlated with vigour index-I, seedling length, vigour index- II, seedling dry weight, germination percentage and non-significant with speed of germination. The seedling establishment of oat in the field was found to have significant positive correlation with most of the seed quality parameters such as germination percentage, seedling length and seedling dry weight but negative correlation with radicle emergence.
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    ThesisItemOpen Access
    Effect of seed treatment on seed quality of Quinoa (Chenopodium quinoa) during storage
    (CCSHAU, Hisar, 2023-07-20) Aman; Puneeth Raj M.S.
    The present study entitled ―Effect of seed treatments on seed quality of Quinoa (Chenopodium quinoa) during storage‖ was carried out at laboratory of Department of Seed Science and Technology, CCS Haryana Agricultural University, Hisar. The seeds of quinoa (Cv. Himshakti) were treated with imidacloprid, thiram, vitavax and polymer along with their combinations and were stored for 10 months. Secondly seeds were primed with water, cobalt chloride, potassium nitrate, calcium chloride and GA3 at 25℃ for 12 h, 24 h and 36 h after 10th month of storage period. All the treatments were evaluated for seed quality parameters viz. seed moisture content (%), speed of germination, germination (%), seedling length (cm), radicle emergence, seedling dry weight (mg), vigour index I & II. Results revealed that seeds treated with Imidacloprid + Vitavax (Thiram + Carboxin) + Polymer were found significantly higher in seed quality parameters followed by Vitavax (Thiram + Carboxin) + Polymer and least was found in control. Seeds stored in polythene bags showed better seed quality than seeds stored in cloth bags. Quinoa seeds primed with GA₃ at 25℃ for 24 h were found significantly higher seed quality parameters compared to other treatments.
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    ThesisItemOpen Access
    Maximization of seed yield and quality in cowpea {Vigna unguiculata (L.) Walp}
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-11) Digamber; Jakhar, S. S
    Seed quality is a vital factor in the crop establishment and overall performance of the crop. Cowpea is a crop which is used both as feed and fodder in India. The non-availability of quality seeds of improved varieties is a crucial factor in popularization of fodder crop. Availability of viable and vigorous seed at the planting time is important for achieving targets of agricultural production because good quality seeds act as a catalyst for exhausting the potential of other inputs. Keeping in view the seed quality, investigation was carried out in the laboratory and research farm of Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar during year 2019 and 2021. The cowpea variety CS-88 was used for the experiment. The seeds were treated before sowing with three different fungicides i.e. captan, vitavax and bavistin. Three different sowings were done on 30thMarch, 30thMay and 30thJune in order to study the effects of sowing dates.Crop was sprayed with three different nutritional sprays at different growth phases i.e. NPK (18:18:18), NPK (17:44:0) - Urea phosphate and NPK (0:0:50) - SOP Sulphate of potash to study the effecton seed yield and quality. The dates of sowing, seed treatments and foliar sprays have significant effect on seed yield and quality of cowpea. The maximum seed yield (7.81& 7.71 q/ha) with better seed quality was found in 30thMay sown crop followed by (6.99& 6.81 q/ha) 30thMarch sown crop. Lowest seed yield (6.69& 6.63 q/ha) along with poor seed quality was obtained in 30thJune sown crop during the year 2019 and 2021 respectively.The seeds treated with captan provided the maximum (7.76 & 7.69 q/ha) seed yield. The crop can be sprayed with NPK (18:18:18)at vegetative stage to get the higher yield.
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    ThesisItemOpen Access
    Maximization of seed yield and quality in cowpea {Vigna unguiculata (L.) Walp}
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-11) Digamber; Jakhar, S. S
    Seed quality is a vital factor in the crop establishment and overall performance of the crop. Cowpea is a crop which is used both as feed and fodder in India. The non-availability of quality seeds of improved varieties is a crucial factor in popularization of fodder crop. Availability of viable and vigorous seed at the planting time is important for achieving targets of agricultural production because good quality seeds act as a catalyst for exhausting the potential of other inputs. Keeping in view the seed quality, investigation was carried out in the laboratory and research farm of Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar during year 2019 and 2021. The cowpea variety CS-88 was used for the experiment. The seeds were treated before sowing with three different fungicides i.e. captan, vitavax and bavistin. Three different sowings were done on 30thMarch, 30thMay and 30thJune in order to study the effects of sowing dates.Crop was sprayed with three different nutritional sprays at different growth phases i.e. NPK (18:18:18), NPK (17:44:0) - Urea phosphate and NPK (0:0:50) - SOP Sulphate of potash to study the effecton seed yield and quality. The dates of sowing, seed treatments and foliar sprays have significant effect on seed yield and quality of cowpea. The maximum seed yield (7.81& 7.71 q/ha) with better seed quality was found in 30thMay sown crop followed by (6.99& 6.81 q/ha) 30thMarch sown crop. Lowest seed yield (6.69& 6.63 q/ha) along with poor seed quality was obtained in 30thJune sown crop during the year 2019 and 2021 respectively.The seeds treated with captan provided the maximum (7.76 & 7.69 q/ha) seed yield. The crop can be sprayed with NPK (18:18:18)at vegetative stage to get the higher yield.
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    ThesisItemOpen Access
    Effect of seed treatments on seed quality of onion (Allium cepa L.) during storage
    (CCSHAU, Hisar, 2021-10) Rathi, Prashant; M.S., Puneeth Raj
    The present investigation was carried out at the Department of Seed Science and Technology, CCA Haryana Agricultural University, Hisar to assess “ Effect of seed treatments on seed quality of onion (Allium cepa L.) during storage”. The seeds of onion (Cv. HO-3) was treated with neem oil, nano particles, thiram and chlorpyrifos along with their combinations and stored. Secondly seeds was primed with ethanol, water, GA3, nanoparticles and Trichoderma after 10 months of storage period. All the treatments was evaluated for seed quality parameters viz. test weight (g), standard germination (%), speed of germination, seedling length (cm), seedling dry weight (mg), vigour index I & II, electrical conductivity (μS/cm/g), catalase activity (μmoles/min/g), dehydrogenase activity (ODg-1ml-1), peroxidase activity (μmoles/min/g), superoxide dismutase activity (IU/g F wt). Results revealed that seeds treated with T12 – Chlorpyrifos 20 EC + Thiram + ZnO Nano particles were found significantly higher in seed quality parameters followed by T8 - Neem oil + ZnO nano particles + Chlorpyrifos and least was found in control . Secondly seeds primed with ZnO (100 ppm) nano particles were found superior in most of seed quality parameters followed by ZnO (200 ppm) nano particles followed by T9 – ZnO (200 ppm) nanoparticles and least was found in T1 - control
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    ThesisItemOpen Access
    Influence of seed treatments on quality of different aged seeds of barley (Hordeum vulgare L.)
    (CCSHAU, Hisar, 2021-08) Chhillar, Rahul; Mor, V. S
    Seed treatment is used to improve germination, field emergence under normal and stressful condition, protects germinating seeds and seedlings against soil and seed borne pathogens/insects, early and uniform establishment and growth which result in direct seed yield through its impact on seed quality and vigor of the crop plants. Present study was conducted during 2019-2021 in the laboratories and research farm of the Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar. To study the influence of seed treatments on quality of different aged seeds of barley (Hordeum vulgare L.). The efficacy of treatments for vigour and viability of barley seed was tested in laboratory and field trials using fresh seeds, one year old seeds and two year old seeds. It was found that seed treated with Azotobacter + Phosphate solubilizing bacteria enhanced the better seed quality in terms of all parameters of fresh as well as of old seed lots of barley, and Chlorpyrifos showed negative effect on seed quality in various combinations. It is also concluded that enzymatic activities of the catalase, POX and SOD is enhanced by application of biofertilizers on barley seeds During natural ageing, standard germination, test weight, seedling length, seedling dry weight, vigour indices, speed of germination, seedling establishment and field emergence index decreased significantly and progressively with the ageing period although, after seed treatment with Azotobacter + Phosphate solubilizing bacteria in natural aged lot were improved in respect of all parameters as compared to other treatments but still the performance of old seed lot was very low with all given seed treatments. So we can recommend that always use fresh seed for sowing purpose to maintain the better plant stand in the field and biofertilizers enhanced the seed quality whereas, insecticides retard the seedling growth
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    ThesisItemOpen Access
    Effect of nutrients spray on seed yield and quality of mungbean (Vigna radiata L. Wilczek) during summer season
    (CCSHAU,HiSAR, 2021-07) Shivani; Jakhar, S. S
    The seeds were treated with foliar spray of nutrients. The experiments consists of nine treatments viz., control, water spray @ 500L/ha, urea @1 and 2%, zinc sulphate, NPK @1 and 2%, sulphate of potash and urea phosphate on two varieties of mungbean i.e., MH 421 and MH 318. The present investigation was carried out in field and laboratory to meet out the objectives of research. In the field, both the varieties were sown and sprayed with nutrients at 30 DAS and 50DAS. After harvesting, seeds were treated with aluminium phosphide to prevent insect attack. The NPK treated seed of both the varieties resulted better performance in seed yield and quality parameters such as germination, mean emergence time, number of pods, speed of germination, seedling length, seedling dry weight, vigor indices, emergence index and seedling establishment as compared to control. NPK @ 2 % and ZnSO4+ urea showed significant higher values for all the seed yield and quality parameters which was followed by sulphate.of potash and urea @ 2%. The increase in yield of both varieties was recorded 25 per cent and15 per cent. Similarly, the standard germination was increased 6.5 per cent and 2.6 per cent in variety MH 421 and MH 318 respectively.
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    ThesisItemOpen Access
    Seed quality assessment in naturally aged and primed seeds of Barley (Hordeum vulgare L.)
    (CCSHAU, Hisar, 2021-09) Kurubar, Siddu Appasaheb; Bhuker, Axay
    Seed is a carrier of genetic constituents which are incorporated by the breeder. After the physiological maturity seed starts deteriorating and eventually loses its quality. For uniform and optimum plant population it is necessary to maintain the seed quality. Storage containers play a crucial role in maintaining the seed quality during the storage. Seed priming is proven technique in enhancing the seed quality during post-harvest period and it is used for mid-storage treatments for correcting vigour loss during the storage. Hence, the present study was undertaken to assess the effect of storage containers on naturally aged and primed seeds of six barley varieties viz., BH 946, BH 902, BH 393 (six rowed varieties), BH 885 DWRB 101 and DWRB 92 (two-rowed varieties). The seeds of all the six varieties were stored in cloth bag (ordinary) and polythene bag (moisture prof) containers for 9 months under ambient conditions. Nine months naturally aged seeds and artificially aged seeds (for 48,72 and 96 hours) were primed with GA3 (50, 100 and 150ppm), ethanol (1%,3% and 5%) and ZnO NPs (50,100 and 200ppm) at 250 C for 24 hours in order to assess the effect of priming. The results revealed that polythene bag maintained seed moisture content constant throughout the storage period which resulted in better storability. All the seed priming treatments enhanced the seed quality as well as enzymatic activities of the seeds except ethanol 5%. ZnO 100ppm and GA3 100ppm enhanced the seed quality at maximum extent in both naturally and artificially aged seeds. Priming with Ethanol at lower concentration i.e.,1 and 3% also increased the seed quality but at higher concentration i.e.,5% caused the toxic effect on aged seeds. Hence, it is concluded that polythene bags (with thickness >700gauge) are more suitable to maintain the seed quality of barley as compared to cloth bags. DWRB 101 and BH 946 performed better in all the seed quality parameters indicating highly vigourous cultivars which can be used for further breeding programmes. Seed quality of barley seeds can be enhanced through priming with ZnO 100ppm and GA3100ppm