The Role of Harvest Index in Improving Crop Productivity: A Review

doi:10.7176/jnsr/9-6-04

Cited by 4 publications

(4 citation statements)

References 23 publications

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“…In cereals, HI values between 0.3 and 0.6 predominate [85][86][87][88]. The HI value can be modified by crop management [89]. Our experience has confirmed that agrotechnical treatments, such as foliar spraying with microelements, influence the increase in HI.…”

Section: Influence Of Experimental Factorssupporting

confidence: 62%

Influence of Foliar Application of Microelements on Yield and Yield Components of Spring Malting Barley

Stadnik,

Tobiasz-Salach,

Migut

2024

Agriculture

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Barley is an economically important plant cultivated primarily for animal feed and in the brewing industry for the production of barley malt. Climate changes and an increase in grain demand result in a constant need to improve the volume and stability of cereal species yields and better use the potential of cultivars. In cereal production, an important aspect is the use of microelements, especially by foliar spraying. Microelements, as components or enzyme activators, play a significant role in plant growth and metabolic processes occurring in the cell. As a consequence, their availability is a factor determining plant development. The aim of this study was to determine the effect of foliar fertilization with selected microelements on the yield of two-row malting barley cultivars. In 2019–2021, a two-factor field experiment with barley was conducted in south-eastern Poland. The experimental factors were three spring barley cultivars (Baryłka, KWS Irina, and RGT Planet) of the brewing type and four single-component micronutrient fertilizers containing copper (Cu), manganese (Mn), molybdenum (Mo), and zinc (Zn). The foliar application of microelements resulted in improvements in selected elements of the yield structure and an increase in grain yield, and the effect depended on the fertilization applied. The highest grain yield was obtained from plots where fertilizer with Mo or Zn was used. Barley plants sprayed with Mo fertilizer developed the longest spikes and were characterized by the highest number of productive tillers per plant. The foliar application of Zn resulted in the formation of the highest number of spikes per unit area and grain uniformity. The RGT Planet cultivar was characterized by higher values of the measured parameters compared to Baryłka and KWS Irina.

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Section: Influence Of Experimental Factorssupporting

confidence: 62%

Influence of Foliar Application of Microelements on Yield and Yield Components of Spring Malting Barley

Stadnik,

Tobiasz-Salach,

Migut

2024

Agriculture

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“…Harvest index (HI) is a way to measure how photosynthate splits up. When the crop harvest index goes up, it means that the crops' economic value goes to a certain amount (Asefa, 2019). Dry stem weight changes were linked to HI variations, and late sowing increased HI (Kawasaki et al, 2018).…”

Section: Yield Associated Traitsmentioning

confidence: 99%

Screening the Soybean Varietal Lines for Selecting High-Yielding and Better Agronomic Traits Producing lines

Zangejo,

Sirohi,

Ghulam Raza

2023

joarps

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Soybean (Glycine max), an economically significant legume originating from East Asia, serves as a valuable source of protein and oil globally. In Pakistan, soybean is considered a non-conventional oilseed crop, with successful cultivation possible during both the spring and summer seasons. The careful selection of appropriate varieties is a primary concern for soybean growers in the country. Therefore, experiments were conducted utilizing the newly developed varietal line in the agroecological zone of Tandojam to select the most suitable and adaptable varieties. A total of forty-six newly developed varietal lines, which have not yet been released, were evaluated alongside four released varieties (Ajmeri, Faisal, Jack, and Rawal) that are already being cultivated in various regions of the country. The field experiments were carried out at the experimental area of the Nuclear Institute of Agriculture (NIA) in Tando Jam during the spring and summer seasons of 2018. Agronomic traits were recorded for each variety, and weather data were obtained from the Pakistan Meteorological Department. All agricultural practices were followed. The results indicate significant variations among the genotypes for all evaluated characteristics. Based on grain production, NIBGE32 exhibited the highest performance, achieving a notable yield of 22g during the summer season, which was 30% higher than the yield of the top-performing control variety, Faisal. Other newly developed varietal lines, namely NIBGE 18, NIBGE 8, NIBGE 45, and NIBGE 41, also demonstrated promising high-yield potential. These varieties displayed comparatively superior growth and yield outcomes. Germination percentage significantly vary in the spring and summer season (Mann-Whitney U =7925, P<0.01); whereas days to maturity, plant height, leaf area, lowest pod height, 100-grain weight, biological yield, seed weight per plant, were not significantly different in two seasons. This suggests a potential for these varietal lines to be cultivated in both seasons. This research endeavours to offer valuable insights and recommendations to farmers and policymakers, aiming to augment soybean production and advance agricultural sustainability in the region of Sindh.

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“…The harvest index (HI) measures success in partitioning the results of photosynthate assimilation. An increase in the crop harvest index means an increase in the economic portion of the crop at a certain level [29]. A single effect of nitrogen fertilization (N) and irrigation markedly affected the average crop index (Table 3).…”

Section: Harvest Indexmentioning

confidence: 99%

Applied Nitrogen Fertilization and Irrigation on Improving Shallot (Allium ascolanicum L.) Growth and Yield on Dry Land in Mesuji, Lampung Province, Indonesia

Timotiwu,

Manik

et al. 2023

Int J Agriculture Technology

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This field research was conducted from June to August 2022 at the research station of Agriculture Extension, Mesuji District, Mesuji Regency, Lampung Province, Indonesia. The study aimed to determine the effect of nitrogen fertilization and irrigation on different levels of treatment on shallot growth and yield in dry land. The experiment was a factorial design in a striped plot with three replications. The first factor was nitrogen fertilizer levels, namely 0 kg N/ha (N0), 80 kg N/ha (N80), 160 kg N/ha (N160) and 240 kg (N240); the second factor was irrigation with four levels, namely 25% ETc (W25), 50% ETc (W50), 75% ETc (W75) and 100% ETc (W100). The variables observed were plant height, number of leaves, fresh weight of tubers, diameter of tubers, dry weight of tubers and harvest index. The results showed that the significant effect of treatment was more due to the main effect of nitrogen fertilizer and irrigation factors. Nitrogen fertilizer has a significant effect on plant height, fresh weight of tubers, tuber diameter, dry weight of tubers and harvest index, while the number of leaves and canopy cover have not been significantly affected. The irrigation treatment significantly affected all observed variables, while only the dry weight variables of tubers showed a noticeable interaction effect of nitrogen fertilization and irrigation. The best treatment to support the growth and yield of shallots in dry land results from fertilizing nitrogen (N) 160 kg N/ha and irrigating 75% Etc.

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The Role of Harvest Index in Improving Crop Productivity: A Review

Cited by 4 publications

References 23 publications

Influence of Foliar Application of Microelements on Yield and Yield Components of Spring Malting Barley

Influence of Foliar Application of Microelements on Yield and Yield Components of Spring Malting Barley

Screening the Soybean Varietal Lines for Selecting High-Yielding and Better Agronomic Traits Producing lines

Applied Nitrogen Fertilization and Irrigation on Improving Shallot (Allium ascolanicum L.) Growth and Yield on Dry Land in Mesuji, Lampung Province, Indonesia

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