Judul: Genetic parameters estimation of pepper (Capsicum annuum L.) resistance to anthracnose (Colletotrichum acutatum) using diallel analysis
Abstrak: Anthracnose (Colletotrichum acutatum) is considered of the major disease that may cause significant yield losses in pepper. Resistance variety is important for controlling disease infection since other methods were not effective. The aim of this research is to identify pepper genotype resistance and estimating genetic parameters of pepper resistance to anthracnose. This experiment were done in three steps: (1) screening of pepper resistance to anthracnose, (2) estimating genetic parameters of pepper resistance to anthracnose using diallel analysis and (3) determining the selection character using path analysis. The first experiment was conducted using 21 genotypes and C. acutatum isolate BKT 04. Mature green fruit were inoculated using microinjection method. The result showed that based on disease incidence, there was no genotype which resistance to anthracnose. However, there were three genotypes (IPB C15 x IPB C10, IPB C15 and IPB C8) which resistance based on lesion diameter. Set population from half diallel crosses which involve 6 parents and 15 crosses with C. acutatum isolate BKT 04 were used in the second experiment. Disease resistance percentage and lesion diameter were used for estimating genetic parameters and combining ability. Disease incidence and lesion diameter were used for estimating heterosis. The results show that there is no non alellic interaction, gene effects for resistance to anthracnose were additive and dominance, dominance effect larger than additive effect, the degree of dominance was overdominance, genes distribution in the parents was assymetrical, anthracnose resistance was controlled by one gene group, broad-sense heritability was high and narrow-sense heritability was low. General combining ability of IPB C15 was high for disease resistance percentage and lesion diameter, specific combining ability of IPB C15 x IPB C9 was high for disease resistance percentage and specific combining ability of IPB C15 x IPB C10 and IPB C4 x IPB C2 were high for lesion diameter. Negative heterosis was expected in disease resistance traits, IPB C15 x IPB C9 had negative heterosis for disease incidence and IPB C10 x IPB C9 had negative heterosis for lesion diameter. The thickness of fruit flesh is recomended for selection criteria for developing anthracnose resistant pepper varieties.
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Judul: Pendugaan Parameter Genetik Ketahanan terhadap Penyakit Antraknosa dan Beberapa Karakter Kuantitatif pada Cabai
Abstrak: The research was conducted at Leuwikopo Experimental Field and Plant Breeding Laboratory of IPB, from October 2012 to April 2013. Crossing population between C15 and C2 genotype were used to study resistance genetic parameter for anthracnose disease caused by Colletotrichum acutatum and quantitative characters in pepper. Twenty mature green pepper fruits from each plant were inoculated by PYK 04 isolate. Experiment result showed that resistance to anthracnose in pepper was controlled by recessive gene. There were no maternal effect for all observed character except fruit length. Broad-sence heritability were high for disease incidence, necrotic diameter, plant height, stem diameter, dichotomous height, days for flowering, days for harvesting; and medium for fruit length and diameter character. Narrow-sence heritability were high for stem diameter, dichotomous height, days for flowering; medium for disease incidence, plant height, days for harvesting; and low for necrotic diameter, fuit length and diameter character. Additive-variance ratio were high for disease incidence, plant height, stem diameter, dichotomous height, and days for flowering; medium for necrotic diameter, days for harvesting, fruit diameter; and low for fruit length character. Producing pepper varieties which are resistance to anthracnose and good yield should be aimed to open pollinated varieties.
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Judul: Sistem giro mudharabah
Abstrak: Dewasa ini perkembangan syariah di Indonesia meningkat. Banyak perusahaan perbankan konvensional mendirikan Unit Usaha Syariah bahkan menjadi Bank Umum Syariah. Unit Usaha Syariah pun memerlukau sistem yang dapat mendukung kinerja usaha. Sistem ini dikenal dengan istilah sistem syariah. Sistem syariah dirancang dengan melakukan migrasi sistem terhadap sistem konvensional yang mendukung kinerja perbankan konvensional. Hal ini dilakukan karena dinilai efektif dan efisien dalam penggunaan sumber daya. Bank X yaug telah membuka Unit Usaha Syariah juga memerlukan sistem syariah untuk mendukung kinerja usahanya. Oleh karena itu proses migrasi pun dilakukan oleh bank X.
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