scholarly journals Effect of Azadirachta excelsa and Melia azedarach extracts on soybean germination

2017 ◽  
Vol 9 (4) ◽  
pp. 346-351
Author(s):  
RUMMI AZAHRA GUMILAR ◽  
NURHENI WIJAYANTO ◽  
ARUM SEKAR WULANDARI
Keyword(s):  
Tree Species ◽  
Growth And Development ◽  
Agroforestry System ◽  
Melia Azedarach ◽  
Stimulant Effect ◽  
Fast Growing ◽  
Stem Leaf ◽  
Allelopathic Compound ◽  
Allelopathic Compounds ◽  
Fast Growing Species

Gumilar RA, Wijayanto N, Wulandari AS. 2017. Effect of Azadirachta excelsa and Melia azedarach extracts on soybean germination. Nusantara Bioscience 9: 346-351. Azadirachta excelsa and Melia azedarach are potential tree species developed in agroforestry system. Both plants are fast growing species and good for timber use. However, there is an inadequacy on both species due to their allelopathic compound contents. Allelopathic compounds in the plants are distributed from root, stem, leaf, and fruit; which at certain concentrations could inhibit germination, growth, and development of other plants. The objective of this study was to analyze the effects of root, leaf, and twig extracts of M. azedarach and A. excelsa on the germination of soybean. Result of this study showed that the root, leaf, and twig extracts of M. azedarach and A. excelsa were able to inhibit the development of soybean. 5 % twig extract of M. azedarach significantly inhibited the germination by 77.75%. Leaf and twig extracts of A. excelsa at 1.25% concentration has shown to provide stimulant effect on the germination of soybean.

scholarly journals EVALUASI SISTEM AGROFORESTRI SENGON DENGAN PADI GOGO TERHADAP SERANGAN CENDAWAN Rhizoctonia sp. Evaluation of Agroforestry System between Sengon with Upland Rice to Invection of Rhizoctonia sp.

2019 ◽  
Vol 9 (2) ◽  
pp. 120-126
Author(s):  
Nofika Senjaya ◽  
Nurheni Wijayanto ◽  
Desta Wirnas ◽  
Achmad .
Keyword(s):  
Upland Rice ◽  
Agroforestry System ◽  
Statistical Test ◽  
Agricultural Crop ◽  
Community Forest ◽  
Fast Growing ◽  
Rice Productivity ◽  
Fast Growing Species

Sengon is a fast growing species that popular to be cultivated in Indonesia. It can be planted in agroforestry system with agricultural crop such as upland rice (padi gogo). Agroforestry system between sengon and upland rice is vulnerable to fungi attack. Micro fungi that may attack upland rice and young sengon is Rhizoctonia sp. This research aimed to analyze the interaction of plants in agroforestry between sengon and upland rice as well as Rhizoctonia sp. attack. The experiment was performed in community forest in Cikarawang village which dominated by 2 years old sengon. Agroforestry system in cikarawang village affected significantly to harvest productivity of upland rice but not affected to growth of sengon. Statistical test performed also showed that Rhizoctonia sp. attack to upland rice did not affect the harvesting result, but only affected to plant morphology.Keywords: dimension, fungi, rice, productivity

scholarly journals Impact of planting density on wheat crop grown under different tree species in tarai agroforestry system of central himalaya, India

2018 ◽  
Vol 10 (1) ◽  
pp. 30-36
Author(s):  
Kavita Satyawali ◽  
Sumit Chaturvedi ◽  
Neema Bisht ◽  
V.C. Dhyani
Keyword(s):  
Tree Species ◽  
Eucalyptus Camaldulensis ◽  
Triticum Aestivum L ◽  
Agroforestry System ◽  
Growth And Yield ◽  
Planting Density ◽  
Melia Azedarach ◽  
Wheat Crop ◽  
Wheat Growth ◽  
Yield Attributes

A field trial based Agroforestry system was established at Pantnagar during Rabi season 2012-13 for predicting the effect of spacing on growth and yield of wheat (Triticum aestivum L.) under Eucalyptus camaldulensis and Melia azedarach. The experiment was carried out in split-plot design consisting of two tree species in main plot, viz, Eucalyptus camaldulensis and Melia azedarch and four spacing treatments in sub-plot viz, 3.0m×1.0m, 3.0m×1.5m, 3.0m×2.0m and 3.0m×2.5m with three replications. The wheat crop variety“UP-2338” was sown on December 06, 2012 and harvested on April 27, 2013. Among the tree species, the maximum (15.1 q /ha) and significantly higher grain yield with 21.8% increment was recorded under Melia as compare to Eucalyptus. Whereas, among the different spacings, the wheat growth in terms of dry biomass at 120 DAS (495.4/m2 ), yield attributes and yield in terms of grain (16.0 q/ha), straw (29.4 q/ha) and biological yield (45.4 q/ha) under Melia was significantly higher at 3 × 2.5 m spacing as compared to other planting density. The correlation coefficient (r) studies exhibited that wheat growth and yield attributing characteristics shows significantly (p<0.05) high degree (r=0.75 to 1) positive correlation with each other. The investigation was done to find out the proper planting density for intercropping of wheat with tree species without comprising the wheat growth and enhancing its sustainability.

scholarly journals The effect of a single inbreeding on the growth and development of fast-growing tree species, Betula pendula and Betula pubescens

2021 ◽  
Vol 875 (1) ◽  
pp. 012014
Author(s):  
I Yu Isakov
Keyword(s):  
Tree Species ◽  
Growth And Development ◽  
Betula Pendula ◽  
Deciduous Trees ◽  
Fertility Level ◽  
Seed Progeny ◽  
Fast Growing ◽  
Downy Birch ◽  
Transitional Forms ◽  
Ambiguous Effect

Abstract The aim of the research is to study parameters of seed reproduction systems in Betula pendula and B. pubescens, find possibilities for producing viable inbred plants, and analyze their growth and development and hybrid heterosis at crossing the selected forms in generations F1 and I1. Differentiation in deciduous trees by self-fertility level was established. By this feature the progeny of different tree groups have different genetic and selection value depending on pollination method of parent trees: at open pollination the progeny of self-sterile and transitional forms (cross-pollinating) are the most fast-growing and resistant to unfavorable environmental factors, whereas at self-pollination – the progeny of self-fertile forms. Accordingly parent trees were classified into three groups: self-fertile, self-sterile and transitional forms. Frequency of self-fertile forms and preservation of inbred plants in downy birch are higher than the similar indicators in silver birch. Thus an ambiguous effect of closely related crossing in tree species on the growth and development of their seed progeny was revealed. The effect of inbreeding on some trees is positive, on other negative, and there is the third group, in which the growth deflections caused by inbreeding are inessential. Such trees are suggested for use in various selection programs.

scholarly journals Reforestation Based on Mono-Plantation of Fast-Growing Tree Species Make It Difficult to Maintain (High) Soil Water Content in Tropics, a Case Study in Hainan Island, China

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3077
Author(s):  
Wenjun Hong ◽  
Jindian Yang ◽  
Jinhuan Luo ◽  
Kai Jiang ◽  
Junze Xu ◽  
...  
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Tree Species ◽  
Tropical Rainforest ◽  
High Growth ◽  
Fast Growing ◽  
Dry Seasons ◽  
Very High ◽  
Fast Growing Species

Reforestation has been assumed as a natural solution to recover soil water content, thereby increasing freshwater supply. Mono-plantation of fast-growing species is the first step for performing reforestation to prevent frequent and heavy rain-induced landslide in tropics. However, fast-growing species may have negative hydraulic response to seasonal drought to maintain high growth rate and, thus, may make it difficult for reforestation in tropics to recover soil water content. We tested this hypothesis in a setting involving (a) a reforestation project, which mono-planted eight fast-growing tree species to successfully restore a 0.2-km2 extremely degraded tropical rainforest, and (b) its adjacent undisturbed tropical rainforest in Sanya City, Hainan, China. We found that, for maintaining invariably high growth rates across wet to dry seasons, the eight mono-planted fast-growing tree species had comparable transpiration rates and very high soil water uptake, which in turn led to a large (3 times) reduction in soil water content from the wet to dry seasons in this reforested area. Moreover, soil water content for the adjacent undisturbed tropical rainforest was much higher (1.5 to 5 times) than that for the reforested area in both wet and dry seasons. Thus, the invariably very high water demand from the wet to dry seasons for the mono-planted fast-growing species possesses difficulty in the recovery of soil water content. We suggest, in the next step, to mix many native-species along with the currently planted fast-growing nonnative species in this reforestation project to recover soil water content.

scholarly journals Enhancing green open spaces while conserving local genetic resources: Evaluating growth performance of five native tree species

2021 ◽  
Vol 918 (1) ◽  
pp. 012025
Author(s):  
F G Dwiyanti ◽  
H H Rachmat ◽  
A Susilowati ◽  
I Z Siregar ◽  
K S Yulita
Keyword(s):  
Mortality Rate ◽  
Growth Performance ◽  
Tree Species ◽  
Plant Domestication ◽  
Average Height ◽  
Conservation Action ◽  
Open Spaces ◽  
Fast Growing ◽  
Slow Growing ◽  
Fast Growing Species

Abstract Enhancing green open spaces in cities and their buffer areas has gained increasing recognition. While creating a more sustainable, liveable, and comfortable environment, green spaces could also provide an effort for plant domestication and conservation. We consider the potential urban greening and conservation action by planting five tree species consisting of one highly valuable and slow-growing species Eusideroxylon zwageri trees from four different origins and four fast-growing species of Duabanga moluccana, Anthocephalus macrophyllus, Duabanga grandifolia, and kayu papaya at the water reserve in suburban Ciherang-Bogor. Growth performance on mortality rate and the average height of the 4.5-year-old planted seedlings were observed to evaluate the adaptability and suitability of the species in the area. The results of mortality rate revealed that E. zwageri seedlings were ranged from 35% (from South Kalimantan) to 50% (from Jambi), while the four fast-growing species were ranged from 14% (Kayu papaya) to 83% (Duabanga moluccana) indicated that the mortality rate for the five species of seedlings planted varied. Whereas, the results of average height showed that E. zwageri seedlings were ranged from 196.15 cm (South Kalimantan) to 332.50 cm (Natuna), and four fast-growing species was ranged from 582.35 cm (Duabanga grandiflora) to 1411.10 cm (Anthocephalus macrophyllus) indicated that planting fast-growing trees in the suburban area is suitable to increase land coverage in a relatively short time, while slow-growing species are more suitable for species preservation purposes.

PHYSICAL AND MECHANICAL PROPERTIES OF GLUED-LAMINATED LUMBER FROM FAST-GROWING TREE SPECIES USING MAHOGANY TANNIN ADHESIVE

2019 ◽  
Vol 51 (2) ◽  
pp. 132-143
Author(s):  
Andi Sri Rahayu Diza Lestari ◽  
Yusuf Sudo Hadi ◽  
Dede Hermawan ◽  
Adi Santoso ◽  
Antonio Pizzi
Keyword(s):  
Mechanical Properties ◽  
Tree Species ◽  
Physical And Mechanical Properties ◽  
Tannin Adhesive ◽  
Fast Growing

scholarly journals Aplikasi Pupuk Urea pada Pertumbuhan Bibit Jabon Merah (Anthocephalus macrophyllus (Roxb.) Havil) di Persemaian (Studi Kasus di IUPHHK PT.Telagabakti Persada Halmahera Selatan)

2019 ◽  
Vol 10 (2) ◽  
pp. 70-74
Author(s):  
Laswi Irmayanti ◽  
Nurmaya Talib ◽  
Salam Salam
Keyword(s):  
Fertilizer Application ◽  
Fertilizer Treatment ◽  
Urea Fertilizer ◽  
Fast Growing ◽  
Fast Growing Species

Red Jabon (Anthocephalus macrophyllus (Roxb.) Havil.) is one of the fast growing species that became priority to be developed in South Halmahera Regency, North Maluku Province. Currently the red jabon has become “Local Superior Crops” in North Maluku. One of IUPHHK in South Halmahera which develops red jabon is PT. Telagabakti Persada. The purpose of this study was to determine the best growth of red jabon seedling on urea fertilizer application. The study was conducted at PT. Telagabakti Persada, South Halmahera. The treatments of urea fertilizer were 0 g,  0.25 g, 0.50 g, 0.75 g, and 1 g. The results showed that the urea 0.25 g  fertilizer treatment resulted in the best growth of red jabon seedlings.Key words: Red Jabon, Nursery, Growth of seedling, Urea

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