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Subject: Seed Science and Technology × Thesis Type: M.Sc ×
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Now showing 1 - 9 of 27
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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
    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 various treatments on seed quality and storability in onion (Allium cepa L.)
    (CCSHAU, Hisar, 2020-09) Lokesh; Jakhar, S.S
    The present study was carried out in the Department of Seed Science and Technology, CCS Haryana Agricultural University, Hisar to find the effect of different fungicide treatments and containers on seed quality and storability of onion seed. The seeds of onion (variety: Hisar Onion-4) were treated with seven fungicides and eight plant oils and stored in two containers viz., cloth bag and plastic zipling bag. All the treatment combinations were evaluated for seed quality attributes viz., germination, shoot length, root length, seedling dry weight, vigour indices (I and II), electrical conductivity, seed mycoflora and field parameter viz., emergence index, and seedling establishment. All the treatments results in better performance as compared to untreated seeds. It was observed that carboxin + thiram (2g kg-1 seed) treatment was proved better as compared to other fungicides and among the different plant oils, neem oil (5ml kg-1 seed) treatment performed better than others. Among containers, plastic zipling bag was found better than cloth bag for onion seeds stored at ambient storage condition. Seed quality attributes declined with the passage of time in all the containers and treatments. The seed quality attributes i.e. electrical conductivity and seed mycoflora showed increased values with passage of storage period.
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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
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    ThesisItemOpen Access
    Effect of priming on seed quality and storability of maize (Zea mays L.) Hybrids
    (CCSHAU, Hisar, 2019-11) Kibaraza, Areth; Bhuker, Axay
    Seed priming is reported as a beneficial technique by researchers in many crops, in which seeds are soaked in water for limited imbibition time to allow reversible stage of germination but no protrusion of radical. Seed deterioration is a continuous process which can‘t be stopped but it can be slow down by using suitable packaging materials (containers). Hence, the study was conducted to assess the effect of priming on seed quality and storability of five maize hybrids collected from public and private seeds sectors viz., PMH-1, IIMRNH 2015-3, IIMRNH 2015-4, P3396 and Dekalb 9144 during 2018-19. The seeds were primed with double quantity of distilled water, KH2PO4 (2.0%), KNO3 (1.0%) and GA3 (50 ppm) for 17 hours at room temperature and then dried to original moisture content for 24 hours at 34.5o C temperature (average). Then the seeds were stored in polythene & cloth bags and seed quality was assessed at 3 months interval till 9 months. The results revealed that priming reduced the viability of the seed considerably but the rate at which the priming reduced the viability of seed varied with the hybrids and treatments. Reduced viability of the seed was associated with priming duration, temperature, quantity of solution and method of priming. Likewise primed seed had shorter storability, average germination of primed seed dropped below IMSCS in both containers after 3 months of storage. Dekalb 9144 and IIMRNH-2015-4 maintained average germination above IMSCS (Indian Minimum Seed Certification Standards) for 6 months in polythene bag. Moreover, KH2PO4 (2.0%), KNO3 (1.0%) maintained germination above IMSCS in Dekalb 9144 even after 9 months storage in both containers. Reduction in seed quality of primed seed might be associated with increased sensitivity of primed seeds to deteriorative factors such as temperature, oxygen and moisture content due to weakening of protective structures of the seed and reduced antioxidant enzyme activities. It is concluded from the study that priming of fresh maize hybrid seed for 17h at high temperature (Day 40oC and Night 29oC) reduces the quality of the seed. Priming technique must be standardized before its application for its beneficial effects; otherwise it may adversely affect the seed quality. Priming should be used as pre-sowing, not as pre-storage treatment. Polythene bags (with thickness >700gauge) are more suitable to maintain the seed quality as compared to cloth bags.
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    ThesisItemOpen Access
    Impact of seed treatments and their combinations on seed quality of wheat (Triticum aestivum L.)
    (CCSHAU, Hisar, 2020) Sultan Singh; V.S. Mor
    The good quality seed act as a catalyst for recognizing the potential of other inputs. The quality seed is the most important input for any crop establishment and contribute a lot for production & productivity. Seed treatment is used to control seed-borne pathogens, insects, pests and inoculants which result in direct seed yield loss through its impact on quality of a seed, germination of seed, and vigor of the crop plants. The availability of viable and vigorous seed at the time of planting is essential to achieve the target of agricultural production. Keeping in view the present study was conducted during 2018-2020 in the laboratories and research farm of the Department of Seed Science and Technology, Chaudhary Charan Singh Haryana Agricultural University, Hisar. To study the Impact of seed treatments and their combinations on seed quality and the association of various seed quality parameters along with field emergence of wheat (Triticum aestivum L.). It was found that seed treated with Azotobacter+Phosphate solubilizing bacteria enhanced the better seed quality in terms of all parameters of fresh and old seed lot of wheat, and Chlorpyrifos showed negative effect on seed quality in various combinations. It is also concluded that enzymatic activities of the catalase, POX, DHA and SOD is enhanced by biofertilizers in wheat seedlings and the performance of old seed lot was low with various seed treatments. So we can say always use fresh seed for sowing purpose to maintain the better plant stand in the field and biofertlizers were seed quality enhancer whereas, insecticides and fungicides retard the seedling growth.