Page 1 of 8 - About 75 Essays
  • Effects Of The Green Revolution

    the non-frost days. Therefore, the plant flowers according to a photoperiod, in order to complete the growth cycle in the short period. In the lower altitudes, the plant reacting to photoperiods will make it less adaptable and result in lower yields. Researchers selected breeds from low altitudes (insensitive to photoperiod) and of high altitudes (flower early and give high yield) and bred same, these breeds with different day length responses give the ideal breed which will be insensitive to photoperiod, flower early and give high yields (Fix & Janick, 2007; Trethowan et al., 2007). Prior to the green revolution, wheat production in lower altitudes of the world was dominated by local tall and low producing cultivars. The new photoperiod insensitive, semi-dwarf cultivars are now been cultivated in most low altitude areas of the world (Fix & Janick, 2007). Phenology and productivity Due to the changes crops production increase significantly, more grains where to produce per spike, an increase in spike and increase in harvest index and a reduction in crop lodging. However, there was little change in spike number, above ground biomass and leaf area and leaf weight. It was also evident overtime seed size decreased (Trethowan et al., 2007). High yield varieties (HYV) cause a significant increase in production over a short period table 1. After the introduction, HYV was quickly cultivated in various parts of the world replacing the old varieties. Most notably was the small…

    Words: 1926 - Pages: 8
  • Analysis Of Cajanus Cultivar

    In order to evaluate the efficiency of RAPD-PCR fingerprinting for Cajanus cajan L. cultivar, the DNA templates for 7 RAPD primers banding modality were used. The total number of magnified fragments in the Cajanus cajan L. cultivar value of each primer was represented in Table 2. Total of 18 bands were obtained for all primers. The size of the amplified bands was ranged between 1000 bp and 300 bp. Primers OP-A5, OP-B4, OP-B9, OP-C5 and OP-E15 showed at least three specific fragments. Primer…

    Words: 713 - Pages: 3
  • Essay On Korean Barley Cultivars

    Twenty Korean barley cultivars (Geongang, Gwangan, Nackyoung, Dahyang, Daejin, Saegang, Boanchal, Keunal, Saessal, Saechalssal, Sujung, and Boanchalssal) were selected in this research. All the cultivars were developed by the National Institute of Crop Science (NICS), Rural Development Administration (RDA), Korea and were grown during 2013 in the experimental fields of the NICS, Milyang, Gyeongnam. After harvesting, barley leaves were immediately washed with clean sterile water and then…

    Words: 904 - Pages: 4
  • Shiroodi Case Study

    Results Effects of cultivar genotypic diversity on weeds In overall, the total density of weeds grown in genetically diversified wheat plots was significantly (P ≤ 0.01) lower than that in the monocultures (Figure 2). Weeds grown under monocultures of Shiroodi and ERWYT 91-11 showed the highest density, 33.33 and 30.17 plant m-2 respectively. However, the lowest weed density, 18.67 plant m-2, was observed where these two genetically diversified cultivar/line grew together in a mixture (Figure…

    Words: 890 - Pages: 4
  • Macro And Micromorphology Analysis Essay

    of grape berries, V.itis labrusca, cv. Bordô grown in Rio Grande do Sul (Serra Gaúcha). The origins of representative A. labruscus isolates are shown in Table 2. This new species was not found in the other Brazilian regions. Table 3 shows the frequency of A. labruscus on the samples from different vineyards of Rio Grande do Sul and the range of contamination. Serra Gaúcha has a distinct climatic condition for vineyards, with an annual average temperature of 17ºC, rainfall of 1700 mm and…

    Words: 910 - Pages: 4
  • The Effect Of Wetness Duration On Infection And Growth

    2.4 Factors that Affect Colletotrichum sp. Infection and Growth Factors that affect Colletotrichum growth and infection include inoculum concentration, wetness duration, temperature, age of plant, resistant plant cultivar, pH, nutrient and light. 2.4.1 Inoculum density One of the main factors that facilitate Colletotrichum sp. infection and growth is inoculum density. Up till now, according to Diéguez-Uribeondo et al. (2011), disease severity increased exponentially with increasing…

    Words: 1778 - Pages: 8
  • Banana Fertilizer Essay

    Extra care should be given to avoid scarring of fruits, the bunch should rest between the props leaving space on the sides so that when there is wind bunch cannot be scratched by the propping poles (figure 29:). Reasons of Propping with double wooden props • Cheap and easy to access • Method is easy and not time consuming • Better plant stability and fruit quality than single prop • Method can be used for both short and tall cultivars BUNCH CARE Bunch trimming is the removal of some of the…

    Words: 6276 - Pages: 26
  • Foeniculum Vulgare Essay

    and ethanol. The property of antioxidant is increasing when concentration and amount of sample increased. Finally this study concluded that the fennel seed show s the excellent in vitro antioxidant property though it is best for the biological system, emulsion and health implication or dry food. This study dealt with the effect of organic and bio-organic fertilizers on dry weight. The experiments conducted to discover the total phenolic content, total flavonoid content, vitamin C and…

    Words: 918 - Pages: 4
  • Prunus Case Study

    with economic importance and health benefits. Rosaceae is divided into 4 subfamilies with basic chromosome numbers of x = 7 (Rosoideae), 8 (Prunoideae) and 9 (Spiraeoideae), x = 17 (Maloideae). The taxonomy of the genus Prunus is controversial because of the polymorphism and wide ecological tolerance of the species, as well as the presence of numerous cultivars. Prunus is the largest genus within the subfamily Prunoideae, with 430 both wild and cultivated species (Selvaraj, 2014, Ali et al.,…

    Words: 1367 - Pages: 6
  • Benefits Of Mango

    and defoliated branch terminals and mature leaves. It is dispersed as conidia by rain or water from irrigation. Sometimes fungicides and cultural practices are used to manage this disease, but planting resistant cultivars have proven to be the most effective. Fungal sprays performed every so often reduce mango cultivar susceptibility of this disease. Furthermore, refrigeration with temperatures at 50°F and the immersion of fruits into hot water are considered postharvest treatments that…

    Words: 1208 - Pages: 5
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