Effects of deficit irrigation and plant density on the growth, yield and fiber quality of irrigated cotton

2016 ◽  
Vol 197 ◽  
pp. 1-9 ◽  
Author(s):  
Dongmei Zhang ◽  
Zhen Luo ◽  
Suhua Liu ◽  
Weijiang Li ◽  
WeiTang ◽  
...  
Keyword(s):  
Deficit Irrigation ◽  
Plant Density ◽  
Fiber Quality ◽  
Growth Yield

scholarly journals Between-row spacing and local accession on the yield and quality of garlic

2016 ◽  
Vol 7 (1) ◽  
pp. 112 ◽  
Author(s):  
Jamal-Ali Olfati ◽  
Mohammad-Bagher Mahdieh-Najafabadi ◽  
Mohammad Rabiee
Keyword(s):  
Plant Density ◽  
Cultural Practices ◽  
Block Design ◽  
Growth Yield ◽  
Row Spacing ◽  
Fresh Market ◽  
Yield And Quality ◽  
High Plant Density ◽  
Plant Stand

Garlic is primarily grown for its cloves used mostly as a food flavoring condiment. Previous studies carried out on plant density indicate its direct influence on yield. Plant density depends on the genotype, environmental factors, cultural practices, etc. This study was established to determine the effects of different between-row spacing on growth, yield, and quality of four local accession of garlic. It was laid out on two-factorial Randomized Complete Block Design with three replications during two years. Four local accession of garlic (Langroud, Tarom, Tabriz and Hamedan) were culture in three between-rows spacing (15, 25 and 35 cm) during two years. The results of two cultivated years were different. Plant density changed when garlic cultured with different between row spacing. In present research plant yield increased when the lower between row spacing and high plant density were used but the yield improvement occurring at increased plant stand is offset by the reduction in bulb size and some quality indices such as total phenol and antioxidant which severely affects quality and market value, when garlic is produced for fresh market.

Effects of deficit irrigation and biochar addition on the growth, yield, and quality of tomato

2017 ◽  
Vol 222 ◽  
pp. 90-101 ◽  
Author(s):  
Gamareldawla H.D. Agbna ◽  
She Dongli ◽  
Liu Zhipeng ◽  
Nazar A. Elshaikh ◽  
Shao Guangcheng ◽  
...  
Keyword(s):  
Deficit Irrigation ◽  
Growth Yield ◽  
Yield And Quality

Effect of Plant Density and Nitrogen Application on the Growth, Yield and Quality of Radish (Raphanus sativus L.)

2005 ◽  
Vol 4 (3) ◽  
pp. 225-229 ◽  
Author(s):  
M. El-Desuki ◽  
S.R. Salman . ◽  
M.A. El-Nemr . ◽  
A.M.R. Abdel-Mawgoud .
Keyword(s):  
Raphanus Sativus ◽  
Plant Density ◽  
Growth Yield ◽  
Nitrogen Application ◽  
Yield And Quality ◽  
Raphanus Sativus L

scholarly journals Physiological and biochemical responses of onion plants to deficit irrigation and humic acid application

2021 ◽  
Vol 6 (1) ◽  
pp. 728-737
Author(s):  
Zahra Amiri Forotaghe ◽  
Mohammad Kazem Souri ◽  
Marzieh Ghanbari Jahromi ◽  
Ali Mohammadi Torkashvand
Keyword(s):  
Humic Acid ◽  
Deficit Irrigation ◽  
Soluble Sugars ◽  
Growth Yield ◽  
Field Capacity ◽  
Leaf Protein ◽  
Vegetable Crops ◽  
Sod Activity ◽  
Yield And Quality

Abstract Onion is an important crop with significant roles in human diets. The growth, yield, and quality of vegetable crops, including onions, are more vulnerable to water stress than other crops. In this study, different levels of deficit irrigation (DI) as factor A (a1: 80%, a2: 70%, and a3: 60% of soil field capacity [FC]) and humic acid (HA) as factor B (b1: without and b2: with HA application) were evaluated on onion growth characteristics in a factorial design with four replications. The results showed that the interaction of DI and HA was significant on leaf protein, peroxidase (POD), superoxide dismutase (SOD), and on bulb protein and potassium (K) concentrations. The highest record of these traits was observed in a3b2 (highest DI with HA application), and their lowest was in those at first level of DI (a1). Leaf protein and, to a lesser extent, bulb protein were increased by DI and HA applications. DI at 60% but not at 70% FC significantly reduced bulb fresh weight. There was a gradual increase in leaf proline, soluble sugars, protein, catalase (CAT), POD, SOD activity, and bulb K by application of DI; however, most of bulb traits including protein, iron (Fe), zinc (Zn), and CAT and POD activity were increased only under highest DI level (a3: 60% FC). However, application of HA further increased the soluble sugars and protein concentration as well as the POD and SOD activities of leaves, and protein, Fe, K concentrations, and CAT activity of bulbs under DI. The results indicated that HA benefitted onion growth particularly under DI conditions.

Effects of cultural system (organic and conventional) on growth and fiber quality of two cotton (Gossypium hirsutum L.) varieties

2010 ◽  
Vol 25 (3) ◽  
pp. 228-235 ◽  
Author(s):  
Dimitrios Bilalis ◽  
Sotiria Patsiali ◽  
Anestis Karkanis ◽  
Aristidis Konstantas ◽  
Marios Makris ◽  
...  
Keyword(s):  
Gossypium Hirsutum ◽  
Field Experiments ◽  
Fiber Strength ◽  
Fiber Quality ◽  
Growth Yield ◽  
Good Growth ◽  
Conventional System ◽  
Cultural Systems ◽  
Fiber Fineness

AbstractOrganic cotton is a new industrial crop product. Field experiments were conducted to determine the effects of cultural systems and varieties on the growth, fiber quality and yield components of cotton crop (Gossypium hirsutum L.). The experiments, conducted during 2006 and 2007, were laid out in a split plot design with four replicates, two main plots (organic and conventional system) and two sub-plots (cotton varieties: Athena and Campo). There were no significant differences between the organic and conventional system for cotton growth, yield and fiber quality. The results suggest that the soil N released from both the inorganic (80:40:40 kg ha−1 N:P2O5:K2O) and organic pool (green manure) were sufficient to maintain good growth. Inferior-quality fiber was produced in the variety. Campo, which had the lowest fiber fineness (micronaire), strength, length and reflection. In addition, this variety had the highest fiber elongation and yellowness. There were no significant differences between varieties as far as uniformity and leaf trash ratio are concerned. A positive correlation was observed between fiber strength and length. However, a negative correlation was found between lint yield and fiber strength.

scholarly journals Soil and Regulated Deficit Irrigation Affect Growth, Yield and Quality of ‘Nero d’Avola’ Grapes in a Semi-Arid Environment

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 641
Author(s):  
Maria Gabriella Barbagallo ◽  
Giuseppe Vesco ◽  
Rosario Di Lorenzo ◽  
Riccardo Lo Bianco ◽  
Antonino Pisciotta
Keyword(s):  
Vegetative Growth ◽  
Deficit Irrigation ◽  
Water Status ◽  
Irrigation Management ◽  
Growth Yield ◽  
Wine Quality ◽  
Regulated Deficit Irrigation ◽  
Total N ◽  
Yield And Quality

The present work studied the effect of two consecutive years of regulated deficit irrigation (RDI) compared to rain fed management on the vegetative growth, yield, and quality of ‘Nero d’Avola’ grapes. The trial was conducted separately in two soils (vertisol and entisol) located at the top and bottom hillside of the same vineyard. Vertisol was characterized by greater depth, organic matter, exchangeable K2O, and total N than entisol. RDI was based on an irrigation volume at 25% of estimated crop evapotranspiration (ETc) up to end of veraison and 10% of estimated ETc up to 15 days before harvest. Predawn water potential (PDWP) was used as indicator of plant water status and irrigation timing. No difference in irrigation management was evident between vertisol and entisol. Under Mediterranean climate conditions, RDI was able to enhance grape yield and vegetative growth, especially in vertisol, but it reduced berry titratable acidity and total anthocyanins. ‘Nero d’Avola’ showed to adapt to drought conditions in the open field. Both soil type and irrigation regimes may provide opportunities to obtain different ‘Nero d’Avola’ wine quality and boost typicality.

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