scholarly journals Morphological, physiological, pests and diseases responses of citrus seedling cultivars, and their contribution to cultivar classification under nursery house and open field

2021 ◽  
pp. 370
Author(s):  
Hardiyanto . ◽  
Nirmala F. Devy ◽  
S. Susanto ◽  
A. Sugiyatno ◽  
ME Dwiastuti ◽  
...  
Keyword(s):  
Open Field ◽  
Aphis Gossypii ◽  
Physiological Traits ◽  
Leaf Miner ◽  
Rice Hull ◽  
Average Percentage ◽  
Pests And Diseases ◽  
Plastic Bags ◽  
Cultivar Classification ◽  
Morphological And Physiological Traits

Information of morphological, physiological, and pests and diseases traits between Siam or Tangerine (C. nobilis L.) and Keprok or Mandarin (C. sinensis) seedlings group under nursery and open filed condition in Indonesia has limited. The contribution of morphological and physiological characters to cultivar classification of Siam and Mandarin group has also not been yet documented. The aims of this research were to evaluate the morphological, physiological, pests and diseases responses of citrus seedling cultivars, and their contribution to cultivar classification. This research was conducted at Tlekung Experimental Garden, Citrus and Subtropical Fruits Research Institute, Batu, East Java, Indonesia from February to December 2020. One-year-old budded seedlings were planted in plastic bags (size 15x30 cm) and put in both a nursery house and open field.  The plastic bags were filled with mixed media (rice hull, soil, and compost) with the ratio of 1:1:1. The experimental design was a Two Stage Nested Design consisted of two factors, these were factor A: locations (nursery house and open field) and factor B as a nested-on factor A: cultivars (Siam cv. Pontianak, Siam cv. Banjar, Siam cv. Madu, Keprok cv. Kacang, Keprok cv. Terigas, Keprok cv. Madura and Keprok cv. Gayo). The results showed that the highest flush growth percentage was showed by Keprok cv. Madura grown under open field condition, while the biggest rootstock diameter was obtained from Siam cv. Madu grown in nursery house.  Siam cv. Madu grown in open field also produced the highest root dry weight and stomata density. In terms of pests and diseases, aphids (Aphis gossypii) and leaf miner (Phyllocnistis citrella) have only been affected by locations, while for diseases was not found in this study. Contribution of morphological and physiological traits to citrus cultivars classification were about 64.70%. The average percentage of change in growth and develop capacity of Keprok group from open field to the nursery house increased by 2.35%, whereas for Siam one tended to decrease by 8.96%. In general, responses of morphological and/or physiological traits between Siam and mandarin group two locations were varied. Morphological and physiological traits may also useful for supporting genetically evaluation in improving citrus breeding programs.

scholarly journals Genetic diversity of local sorghum (Sorghum bicolor) genotypes of East Java, Indonesia for agro-morphological and physiological traits

2019 ◽  
Vol 20 (9) ◽  
Author(s):  
Sulistyawati Sulistyawati ◽  
DYAH ROESWITAWATI ◽  
JABAL TARIK IBRAHIM ◽  
MAFTUCHAH
Keyword(s):  
Genetic Diversity ◽  
Sorghum Bicolor ◽  
Block Design ◽  
Physiological Traits ◽  
Breeding Programs ◽  
Pests And Diseases ◽  
Randomized Block Design ◽  
Morphological And Physiological Traits ◽  
Sorghum Genotypes ◽  
Physiological Characters

Abstract. Sulistyawati, Roeswitawati D, Ibrahim JT, Maftuchah. 2019. Genetic diversity of local sorghum (Sorghum bicolor) genotypes of East Java, Indonesia for agro-morphological and physiological traits. Biodiversitas 20: 2503-2510. Sorghum (Sorghum bicolor (L.) Moench) has great potential to be cultivated because it has extensive adaptability, tolerant to drought and puddles, can produce on marginal land and relatively resistant to pests and diseases. To meet the food requirement, sorghum can be grown in Indonesia as an alternative food source other than rice. This study aims to obtain information on the agro-morphological and physiological characters of nine local sorghum genotypes in East Java, Indonesia so that they can be used as parents in improving the nature of varieties. The experiment was conducted in a Randomized Block Design, using nine local sorghum genotypes from East Java in three replications. The nine local sorghum genotypes are Sb.Pas, Sb.Lmg 1, Sb.Lmg 2, Sb.Tbn, Sb.Spg 1, Sb.Spg 2, Sb.Tag 1, Sb.Tag 2 and Sb.Jbg. The result showed that nine genotypes that are characterized have a variety of morphological (quantitative and qualitative), agronomic and physiological characters. According to the whole characters observed, there are five genotypes that are recommended for breeding programs, namely Sb.Lmg 1, Sb.Tbn, Sb.Spg 2, Sb.Tag1 and sb.Tag2. This can be proved by the morphological character, genotype Sb.Lmg 1, Sb.Tbn, Sb.Spg 2, Sb.Tag 1 and Sb.Tag2 have a high value of Agronomy character, genotype Sb.Tbn, Sb.Tag 1 and Sb.Tag 2 noted highest production acres-1 harvest age of genjah and medium; the Physiology character, high protein and carbohydrate substances reached by the Sb.Lmg 1 genotype, Sb.Tbn and Sb.Spg 2.

Comparsion Of Efficency Of Cucumber Production In Poly-House

2019 ◽  
Vol 8 (9) ◽  
pp. 22-30
Author(s):  
SONIA HOODA
Keyword(s):  
Open Field ◽  
Resource Use ◽  
Secondary Data ◽  
Sampling Technique ◽  
Farming System ◽  
Primary Data ◽  
Statistical Tools ◽  
Average Percentage ◽  
Net Returns ◽  
Douglas Production Function

The study has made an attempt on resource use and economic efficiency of cucumber production under poly-house farming and open field farming. Primary data collected by using purposive sampling technique from selected districts. Sample of 50 farmers (25 Poly-house farmers and 25 Open field farmers) was taken from each district on the basis of availability. Secondary data was collected from Horticulture Department. For data analysis statistical tools average, percentage and Linear Cobb-Douglas Production Function was used. The study found that the yield of cucumber was more under poly-house farming as compare to open field farming system. The reason behind this was long harvesting period and more number of fruits per plant under poly-house farming conditions. The data specifies higher net returns per acre of cucumber under poly-house farming over open field farming, which implicit poly-house farming not only highly profitable but also economically viable as compared to open field farming in study area.

scholarly journals Morpho-physiological Traits and Mineral Composition on Local Maize Population Growing in Agro Ecological Conditions in Kosova

2013 ◽  
Vol 5 (2) ◽  
pp. 232-237
Author(s):  
Sali ALIU ◽  
Imer RUSINOVCI ◽  
Shukri FETAHU ◽  
Kemajl BISILIMI
Keyword(s):  
Block Design ◽  
Physiological Traits ◽  
Cellulose Content ◽  
Maize Breeding ◽  
Maize Population ◽  
Maize Populations ◽  
Randomized Complete Block Design ◽  
Morphological And Physiological Traits ◽  
The Mean ◽  
Field And Laboratory Conditions

Twelve local maize populations were evaluated at the experimental farm, University of Prishtina, Kosovo. The study was conducted to assess the magnitude of genetic variation in local maize populations for different morphological-physiological and chemical composition under field and laboratory conditions. Randomized complete block design (RCBD) with three replications was used for laying out the experiment. The results showed that there were significant differences for most morphological and physiological traits under study. The mean grain yield of all populations was 102.96 g plant-1. The protein and oil contents ranged between 11.53 to 9.43% and 4.23 to 4.87% respectively. The cellulose content varied from 6.03 to 6.37%. There were also big differences regarding phenotypic correlations. The present study revealed considerable amount of diversity among the local maize populations which could be manipulated for further improvement in maize breeding.

scholarly journals Challenges associated with the honey bee (Apis mellifera adansonii) colonies establishment in south western Nigeria

2013 ◽  
Vol 13 (57) ◽  
pp. 7467-7484
Author(s):  
KL Akinwande ◽  
◽  
MA Badejo ◽  
SS Ogbogu ◽  
◽  
...  
Keyword(s):  
Honey Bees ◽  
Aethina Tumida ◽  
Ecological Problem ◽  
Varroa Mite ◽  
Average Percentage ◽  
Pests And Diseases ◽  
Significant Difference ◽  
European Foulbrood ◽  
Apis Mellifera Adansonii ◽  
Mite Infestations

The southwestern part of Nigeria is a tropical rainforest region having many local beekeepers. The se beekeepers have experienced decline in colony establishment in the recent past . A study carried out in Lagos, Ogun and Osun states between December 2009 and September 2011 examined 14 randomly selected commercial bee farms for problems associated with decline in colony establishment . Sampling and treatments were split equally between each apiary and three colonies were selected in each . All the colonies were housed in Tanzania /local top bar hive s. There were 58.34, 44.84 and 40.61 average percentage declines in colony establishment in Lagos, Ogun and Osun States , respectively. Presence of pests and diseases, pesticide poisoning, poor hive and seasonal management, ecological problem and lack of queen rearing were potential problems identified by the beekeepers . All the apiaries had pests like Crickets, Ants ( Companotus pennsylvanicus ), Small Hive beetle ( Aethina tumida ), Termites ( Macrotermes spp ) and Spider ( Lactrodectus mactan ) . Varroa mite infestations were found in 33 (78.57%) of apiaries sampled. There was no significant difference between the levels of Varroa infestation in all the colonies during the dry and wet seasons at confidence interval of 95 percent ( t = 1.542, df = 13, p = 0.147 ( p > 0.05) . Nosema spores were found in 27 (64.29%) colonies examined. The number of spores range from 16 x 10 3 to 30.4 x 10 3 . T here were no significant differences in the infection from colony to colony, apiary to apiary and between dry and wet seasons ( t = - 0.094 df = 11, P = 0.927 (P > 0.05). Diseases like American and European foulbrood were absent while chalkbrood disease was prevalent. Environmental factors of high temperature, high rainfall and high relative and hive humidity enhanced the spread of pests and disease pathogens. Many insecticides were constantly applied by the farmers on the crops in the surrounding farmland. Two of the commonly used insecticides DDVP (Dichlorvos) and Cyperforce (Cypermetrin) were discovered to have increased mortality on worker honey bees with progressively larger doses. It was obvious that insecticide toxicity had a significant effect on the colony. Hence , ecological and management problems had contributed to the decline in colony establishment in this area.

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