American International Journal of Agricultural Studies American Center of Science and Education en-US American International Journal of Agricultural Studies 2641-4155 OCCURRENCE AND IDENTIFICATION OF FUNGAL ROTS IN TOMATO (LYCOPERSICUM ESCULENTUM MILL) FRUIT <p><em>Tomato fruits have high nutritional qualities, but their spoilage by soil-borne pathogens results in food poisoning. It is important to isolate and identify the strains of fungi associated with tomato rot, to understand their pathogenic state. Seeds of 3 genotypes of tomato were grown in both hydroponics and soil systems. It is a factorial experiment laid in a completely Randomized Design with four replicates. The number and weight of fruits produced, number of infected and uninfected fruits by rots were recorded. Data collected were analyzed using ANOVA and means were separated using LSD at 5 % significance level. At harvest, the infected and uninfected fruits were harvested and 10 g each were sliced, dissolved in sterile distilled water and were serially diluted before plating on sterile Potato Dextrose Agar-PDA and Sabouraud Dextrose Agar-SDA media with 2 % streptomycin and incubated at 28<sup>o</sup>C for 3 – 7 days. Genotypes and substrates were significant in the rate of fruit infection, with the Roma tomato having 78.1 % fruit infection rate, while the identified fungi from the infected tomato fruits are Aspergillus flavus and Mucor racemosu, as no organism grew in the uninfected fruits cultured in both PDA and SDA culture media.</em></p> <p><strong>JEL Classification Codes: </strong>Q10</p> Stephanie Clara Akpeji Ossai C. Okolie Ogbole Samson ##submission.copyrightStatement## 2021-01-18 2021-01-18 4 1 1 9 10.46545/aijas.v4i1.273 EFFECT OF SUBSTRATE TYPES ON THE SURVIVAL OF TOMATO VINE CUTTING TECHNOLOGY IN NIGERIA <p><em>Due to the high cost of tomato seeds, it is important to fully exploit the seeds for economic gains. This has necessitated the use of vine cutting technology in tomato production from vegetative parts. However, the vine acclimatization substrates type plays important role in the survival of the cut vines. Hence, this study investigates three different substrate types (cocopeat, water and loamy soil) for their suitability for vines cutting. Seeds of three tomato genotypes were raised in hydroponics system containing dissolved cocopeat. At one month after planting, vines were cut from the plants into the three substrates in a Completely Randomized Design with three replicates. Data were collected on vine survival, days to new shoot formation, number of fruits per plant and the average fruit weight at harvest. Data collected were analyzed using ANOVA and differences in the treatment means were separated using the Least Significant Differences at 5 % level of significance. Results obtained showed that the percentage vine survival across the substrates was insignificant with a success rate of up to 77 % in the loamy soil. However, new shoot formation was fastest in the cocopeat substrate (12.56±0.53), while San marzano had the heaviest fruit size (20.73±1.33).</em></p> <p><strong>&nbsp;</strong><strong>JEL Classification Codes: </strong>Q16</p> Ossai C. Okolie Emuh F. Nduka Ogbole Samson Stephanie Clara Akpeji Morufat O. Balogun ##submission.copyrightStatement## 2021-01-18 2021-01-18 4 1 10 14 10.46545/aijas.v4i1.275 EFFECT OF GROWING SUBSTRATE ON YIELD OF RADISH IN NIGERIA UNDER RAINFED AND HAND WATERING CONDITIONS <p><em>Radishes (Raphanus sativus L) have high nutritive and medicinal values, and are predominantly cultivated in the temperate regions of the world. With the high malnutrition rate in Nigeria, domesticating radish is necessary. However, despite being successfully cultivated using the hydroponics system with cocopeat substrate in Nigeria, the adaption to the soil type is an important factor to consider. Seeds of three genotypes of radish were grown in cocopeat substrate and topsoil under rainfed and hand watering conditions. The experiment was set up as a 3 (genotypes) by 2 (substrates) by 2 (watering methods) factorial laid in a completely randomized design with three replicates. Data were collected on the plant height, number of leaves, leaf area, and the tuber and leaf weights respectively. Data collected were analyzed using ANOVA (SAS 9.0 version) and differences in treatment means were separated using least significant differences at 5 % significance level. Results obtained showed that the tuber weight of White Icicle Radish (21.35±3.32) was significantly heavier than the rest genotypes, and the hand watering system also encouraged the production of heavier tuber size (17.79±2.71) than the rainfed system (7.9.6±2.71). However, the planting substrate was insignificant in all parameters considered.</em></p> <p><strong>JEL Classification Codes: </strong>Q15</p> Ossai C. Okolie Stephanie Clara Akpeji E. Martha Olorode Ogbole Samson S. Oye Azeez ##submission.copyrightStatement## 2021-01-18 2021-01-18 4 1 15 20 10.46545/aijas.v4i1.276 RESPONSE OF DIFFERENT STORAGE CONTAINERS IN RICE GENOTYPES DURING STORAGE <p><em>Rice is the staple food of more than half the world’s population and is being cultivated in Asia since ancient time’s generation after generation. Good quality seeds are the seeds of the green revolution, it has been assertively and emphatically shown that 15-20% increased yield could be achieved by the use of good quality seeds alone. Good quality seed is one of the most important requirements for production and supply to achieve higher production and productivity in any crop. The seed quality is depended on various factors Viz. genetic, edaphic, environmental, biotic, etc. Good quality seed production depends on complex conditions evoking the most favorable interactions between the genetic makeup of the seed and the environment, under which it is produced, harvested, processed, and stored. Seeds undergo deterioration at various levels during storage resulting in a decline in vigor and viability. With the above considerations, the present investigation has been undertaken to observe the potentials of ten rice genotypes and observed its seed quality after harvesting in 2016-2017 at Seed Testing Laboratory, Department of Seed Science and Technology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, West Bengal, India. Just after harvesting G<sub>2</sub> (Gobindabhog) and G<sub>9</sub> (IR-36) showed highest germination percentage (97.66) and G<sub>9</sub> (IR-36) showed highest Vigor index (3204.13). But most of the varieties germination and vigor were nearer to G<sub>2</sub> &amp; G<sub>9</sub>. Among the containers with seed moisture content aluminum foil packet with seed moisture content, 8% is the best storage container for rice among the other containers as up to one-year storage vigor index was observed highest in that conditions.</em></p> <p>&nbsp;</p> Sanjoy Kumar Bordolui Nagapuri Sachin Kumar Kanu Murmu ##submission.copyrightStatement## 2021-02-01 2021-02-01 4 1 21 35 10.46545/aijas.v4i1.277