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Showing 1 to 20 of 21 for “"tuber yield"”.
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Effects of topping, stem density, and stage of vine cutting on canopy growth and tuber yield yield of potato (Solanum tuberosum L.)
Seed tubers of ‘Yukon Gold’ potato (Solanum tuberosum L.) exhibit strong apical dominance, resulting in low stem density after planting. After emergence, the terminal buds reimpose apical dominance on the rest of the canopy leading to production of few secondary branches. Therefore, several …
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Effect of Nitrogen Rates, Planting Dates, and Irrigation Regimes on Potato Production in the Eastern Shore of Virginia
… water and nutrient uptake, and overall yield. Additionally, variations in soil properties often affect nutrient and water availability for plants, as well as the distribution of soil-borne insect pests. Additionally, several techniques are available to map the variations of soil …
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The effect of seed tuber size and spacing on the yield , dry matter content and daughter tuber size in three potato (Solanum Tuberosum L.) Varieties
… Chilanga, Zambia to determine the effect of seed tuber size and plant spacing on the yield, dry matter content and daughter tuber sizes of three potato varieties. The trial was also meant to determine the combination of seed tuber size and spacing that would give highest economic returns. The …
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The effect of seed tuber size and spacing on the yield , dry matter content and daughter tuber size in three potato (Solanum Tuberosum L.) Varieties
… Chilanga, Zambia to determine the effect of seed tuber size and plant spacing on the yield, dry matter content and daughter tuber sizes of three potato varieties. The trial was also meant to determine the combination of seed tuber size and spacing that would give highest economic returns. The …
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Investigating Management Alternatives for Southern Blight on Vegetables in the mid-Atlantic United States
… the effect of planting date and potato (Solanum tuberosum L.) cultivar selection on southern blight incidence and tuber yield and quality; 2) compare potato cultivar tuber susceptibility to S. rolfsii in post-harvest settings; and 3) assess the suitability of six cool-season cover crop biomasses …
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The effects of seed tuber size and spacing on the yield,dry matter content and daughter tuber size in three potato(solanum tuberosum L.)Varieties
… Chilanga, Zambia to determine the effect of seed tuber size and plant spacing on the yield, dry matter content and daughter tuber sizes of three potato varieties. The trial was also meant to determine the combination of seed tuber size and spacing that would give highest economic returns. The …
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Utilization of tissue culture methods and molecular markers for improvement of Solanum phureja Juz. & Buk.
… various responses of DMs in terms of growth and yield compared to their anther donors or corresponding F₁ progeny. Female fertility was observed in a majority of the DMs verifying their applicability as parental genotypes in practical breeding. Efforts to generate potato hybrids based on …
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Effects of polyacrylamide (PAM) and gypsum on irrigated and dryland potatoes (Solanum tuberosum L.).
… (PAM) and gypsum on the growth and yield of 'Ilam Hardy' potatoes in 2001-2002. At the final harvest, tuber yields were similar (59 500 kg ha⁻¹). Environmental factors dominated results, particularly January rainfall, which was 150% of the 16-year average. Economic yield (tubers> …
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Assessment of Soil, Yield and Yield Contributing Parameters of Potato in Legume Intercropping and Silicon Application in Texas, United States
… fava bean. The experiment aimed to assess the yield and yield attributing parameters of potatoes in yield and to estimate the correlation among different parameters with yield. The plant height, leaf number, canopy, stem girth, and soil parameters related to yield collected were analyzed using …
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Characterization of activation tagged potato (Solanum tuberosum L.) mutants
… in cv. Bintje; in vitro plants), greater tuber yield, altered tuber traits and early senescence compared to wild-type Bintje under in vitro conditions. Under in vivo conditions, the dwarf and early senescence phenotypes of the mutant were consistent, but the tuber yield of up was less (250 …
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Direct and indirect nitrous oxide emissions from controlled release and conventional fertilizers applied to potatoes in coarse textures soil.
Irrigated potato (Solanum tuberosum L.) production requires significant inputs of fertilizer N for optimal tuber yield and quality. However, high N rates carry the risk of high N loss, particularly in coarse-textured, well-drained soils where potatoes are commonly grown. Polymer coated …
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Investigations into the nature of the potato psyllid toxin
… The effects of potato psyllid feeding on the yield of several varieties of potato, tomato and pepper were investigated. Tissue cultured potatoes were studied under greenhouse conditions by infesting the plants with potato psyllids. Dramatic yield losses occurred in four cultivars of potato …
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Effect of Ploidy Elevation, Copy Number and Parent-Of-Origin on Transgene Expression in Potato
… not affect fertility or agronomic performance (tuber set, average tuber weight, total tuber yield) of the resulting 4x-2x hybrids; however, reduced seed germination was observed for several transgenic lines in an in vitro study. Ploidy elevation did not affect a highly expressed single copy …
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Use of monoploid solanum phureja in cell and tissue culture techniques for potato improvement
… to examine the effect of photoperiod on tuber yield and to determine the variability for critical photoperiod for tuberization. Significant differences were found among the monoploid genotypes for total tuber weight and tuber number. Longer photoperiod treatments both decreased and …
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Application of silicon to improve yield and quality of potatoes (Solanum Tuberrosum L.)
The potato (Solanum tuberosum L.) crop serves as a staple food worldwide and is capable of reducing the world’s food shortages because unlike cereals and other agricultural crops, it is less affected by prices in the international markets. Research on alleviation of food crises suggested root and …
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The effects of fertilisers, particularly foliar applied, on the potato plant's tolerance of attack by the potato cystnematodes, <i>Globodera rostochiensis</i> and <i>G. pallida</i>
Potato cyst nematodes, PCN, cause major yield loss in commercial potato production. One of the mechanisms of yield loss cited is a reduction in the uptake of the major nutrients nitrogen (N), phosphorus (P) and potassium (K). For the work described in this thesis, it was hypothesised that nutrient …
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Phenotypic and genetic variation in an Apios americana breeding collection; and characterization of the HD-Zip gene family, involved in abiotic stress responses in Glycine max
… central and eastern North America. It produces tubers (modified stem-tubers) that are rich in protein, have a long shelf life under refrigeration (>1 year), contain isoflavones, and have low levels of reducing sugars (potentially making the tubers useful for fried chips, for example). The plant …
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Herbicide-based Weed Management Systems for Potato (<i>Solanum tuberosum</i>) and Wheat (<i>Triticum aestivum</i>) and Growth and Reproductive Characteristics of Smooth Pigweed (<i>Amaranthus hybridus</i>)
… weed management programs in potato (<i>Solanum tuberosum</i> L.) and winter wheat (<i>Triticum aestivum</i> L.) as well as investigations of the biological characteristics of smooth pigweed (<i>Amaranthus hybridus</i>), a troublesome species in many crops. Sulfentrazone is an herbicide …
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Investigations of Colorado potato beetle [Leptinotarsa decemlineata (Say)] pest management including: sampling strategies for insecticide resistance detection, development of a knowledge-based expert system and the physiology of cold tolerance
… potato beetles from one location per field) will yield at least a 0.50 probability (> 0.90 in six of the eight fields) of estimating the mean mortality response (± 5%) of Colorado potato beetle in the entire field. The probability of sampling potato beetles from one location which differed in mean …
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