Eff ect of planting date and ha rvesting stage on seed quality of 'SC 701' maize under small-scale farming conditions

2017 ◽  
Vol 45 (2) ◽  
pp. 368-382
Author(s):  
D.B. Akinnuoye-Adelabu ◽  
A.T. Modi
Keyword(s):  
Seed Quality ◽  
Planting Date ◽  
Small Scale

scholarly journals Planting Date and Cultivar Effects on Soybean Yield, Seed Quality, and Phomopsis sp. Seed Infection

Plant Disease ◽  
2003 ◽  
Vol 87 (5) ◽  
pp. 529-532 ◽  
Author(s):  
J. A. Wrather ◽  
D. A. Sleper ◽  
W. E. Stevens ◽  
J. G. Shannon ◽  
R. F. Wilson
Keyword(s):  
Seed Quality ◽  
Significant Negative Correlation ◽  
Planting Date ◽  
Seed Infection ◽  
Planting Dates ◽  
Breeding Programs ◽  
Group Iii ◽  
Phomopsis Seed Decay ◽  
Seed Decay

Incidence of Phomopsis seed decay is frequently high and quality low in seed from early-maturing maturity group III and IV soybean cultivars planted in early to mid-April in the southern United States. Cultivars resistant to this disease have not been available until the recent release of germ plasm lines SS 93-6012 and SS 93-6181. Our objective was to determine the effects of planting dates with these lines and one Phomopsis seed decay-susceptible soybean cultivar, Asgrow 3834, on seed infection by Phomopsis spp. and on yield and the correlation between percentage of Asgrow 3834 infected with Phomopsis spp. and seed quality. Generally, yields averaged over years were significantly greater for mid-April than mid-June plantings, and yields of cultivars were similar within a planting date. Soybean lines SS 93-6012 and SS 93-6181 were highly resistant to Phomopsis seed decay compared with the susceptible cultivar, Asgrow 3834. There was a significant, negative correlation between germination of seed from mid-April plantings of Asgrow 3834 and percentage of these seed infected with Phomopsis spp. Moreover, there were significant correlations between fatty acid composition of Asgrow 3834 seed and the percentage of these seed infected with Phomopsis spp. This altered composition of fatty acids may be responsible for reduced quality of oil derived from seed infected with this fungus. Phomopsis seed decay-resistant soybean lines SS 93-6012 and SS 93-6181 should be useful in breeding programs focused on developing high-yielding cultivars resistant to this disease.

Planting Date and Irrigation Effects on Seed Quality of Early-Maturing Soybean in the Mid-South USA

2008 ◽  
Vol 9 (3) ◽  
pp. 212-233 ◽  
Author(s):  
S. Bajaj ◽  
P. Chen ◽  
D. E. Longer ◽  
A. Hou ◽  
A. Shi ◽  
...  
Keyword(s):  
Seed Quality ◽  
Planting Date ◽  
Early Maturing ◽  
Irrigation Effects

scholarly journals Identification of internal cracks in corn seed using convolutional neural networks

2022 ◽  
Vol 355 ◽  
pp. 03027
Author(s):  
Ziliang Huang ◽  
Rujing Wang ◽  
Liusan Wang ◽  
Yue Teng ◽  
Shijian Zheng
Keyword(s):  
Near Infrared ◽  
Seed Quality ◽  
Light Transmission ◽  
Promising Result ◽  
Small Scale ◽  
Model Parameters ◽  
Corn Seed ◽  
Training Stage ◽  
Testing Stage

The identification of seed quality is very important for which the quality of seed is crucial to the yield and quality of crops. There are two main problems with the acquisition and identification of cracks inside corn seed. One is that most of the methods of near-infrared spectroscopy or X-ray are used to obtain images of cracks inside the seed, the acquisition equipment is expensive and the operation is complicated. The other is the identification of crack images, and the traditional image processing method is usually used which requires professionals to design different model parameters each time, resulting in poor model robustness and low model accuracy. In this study, we originally proposed a simple but effective method to obtain the picture of corn seed internal cracks, which is combined with visible light transmission and ordinary camera acquisition method. We also proposed using the transfer learning methods not only solving the problem of the small scale of our corn seed internal cracks dataset but also avoiding extracting features manually. Our proposed method achieved a promising result, which is able to correctly identify the cracked and intact corn seed 100% in our training stage and testing stage.

Effect of planting date on soybeans in the Namoi Valley, New South Wales

1977 ◽  
Vol 17 (84) ◽  
pp. 148 ◽  
Author(s):  
GA Constable
Keyword(s):  
Seed Quality ◽  
New South ◽  
Plant Size ◽  
Planting Date ◽  
Cultivar Differences ◽  
Planting Dates ◽  
Small Plant ◽  
South Wales ◽  
Yield Determinants

The effect of planting date on phasic development, LAI, yield, yield determinants and seed quality of soybeans was studied in eight seasons. For all development phases up to the end of flowering, each phase was longer for longer daylengths within a cultivar, with later maturing cultivars having increasing sensitivity to daylength. LAI at flowering for each treatment was a function of time from flowering. The yield of Bragg and indeterminate cultivars (Wayne, Delmar and Ruse) decreased if planted in early November. There was generally a decreased yield at a late January planting due to small plant size (low LAI and few mainstem nodes) and in some instances, decreased seed size. Planting dates in December appeared to be optimum, although season and cultivar differences occurred. Seed oil content decreased and protein content increased as planting was delayed.

scholarly journals Manifestarea productivităţii genotipurilor de in (Linum usitatissimum L.) cultivat în diferite epoci de semănat

2021 ◽  
Author(s):  
Doina Cutitaru ◽  
Keyword(s):  
Cultural Production ◽  
Seed Quality ◽  
Abiotic Factors ◽  
Planting Date ◽  
Physical Factors ◽  
Linum Usitatissimum L ◽  
Technological Level ◽  
The Republic ◽  
Productivity Potential

Flax is a known but extremely rare crop for the Republic of Moldova. The potential level of agri-cultural production is generally considered to be determined by physical factors such as quality of the soil, quality and availability of water and the prevailing climate. Current studies cover at the international level the following directions: increase of productivity potential, increase of resistance to unfavorable bio-tic and abiotic factors, improvement of qualitative yield indices. The seed quality and seed production are known to be conditioned by the optimum planting date and the technological level used.

scholarly journals PROFIL PERTUMBUHAN, ENZIMATIS, DAN NUTRISI IKAN BANDENG (Chanos chanos) GENERASI KEDUA (G-2) TERSELEKSI DENGAN MENERAPKAN STANDAR OPERASIONAL PROSEDUR (SOP) PEMELIHARAAN LARVA

2017 ◽  
Vol 12 (2) ◽  
pp. 55
Author(s):  
Daniar Kusumawati ◽  
Zafran Jamaris ◽  
Titiek Aslianti
Keyword(s):  
Enzymatic Activity ◽  
Seed Quality ◽  
Small Scale ◽  
Morphological Aspect ◽  
Feed Conversion ◽  
Biological Aspect ◽  
Chanos Chanos ◽  
Weight Growth ◽  
Main Producer

Isu nasional menurunnya produksi budidaya ikan bandeng di tambak pantai utara Pulau Jawa didugasebagai akibat rendahnya kualitas benih produk Hatchery Skala Rumah Tangga (HSRT) di Bali, yang secara kontinu merupakan sumber utama pasok benih. Banyak faktor yang mempengaruhi kualitas benih, antara lain kualitas telur dan induk, serta manajemen pemeliharaan induk dan larva. Tujuan penelitian ini adalah untuk mengevaluasi performa pertumbuhan,aktivitas enzim pencernaan dan nutrisi benih ikan bandeng dari HSRT dan generasi kedua (G2) terseleksi yang dipelihara berdasarkan standar operasional prosedur. Penelitian dilakukan di tambak Pejarakan, dengan hewan uji benih produk HSRT dan benih generasi ke-2 (G-2) terseleksi dengan panjang total rata-rata 11,79 ± 1,64 mm, masing-masing dengan padat tebar 5.000 ekor/petak dengan luasan 0,5 Ha/petak, diberi pakan jenis pelet kering berkadar protein 25 % dan dipelihara selama 6 bulan. Hasil penelitian menunjukkan performa benih ikan bandeng dipengaruhi oleh sumber induk dan manajemen pemeliharaan saat larva. Pertumbuhan benih ikan bandeng asal HSRT dengan SOP pemeliharaan larva menunjukkan peningkatan laju pertumbuhan panjang dan bobot sebesar 10,11% dan 47,18% lebih tinggi dibandingkan benih G2-terseleksi, dan 13,82% dan 50,55% lebih tinggi dibandingkan benih HSRT tanpa SOP. Aktivitas enzimatis pada benih HSRT dengan SOP lebih efisien dibandingkan benih G2-terseleksi. Aktivitas enzimatis pada benih HSRT tanpa SOP adalah yang paling rendah dimana hal ini terlihat dari laju pertumbuhannya yang juga paling rendah. Benih HSRT yang dipelihara dengan SOP mampu menekan rasio konversi pakan sebesar 28,29% lebih rendah dibandingkan benih G2-terseleksi, dan 22,64% dibandingkan benih HSRT yang dipelihara tanpa SOP. Currently, there is a national concern regarding the decreasing of milkfish production from ponds in North Java allegedly due to a low quality of milkfish seed produced by small-scale hatcheries in Bali, which is the main producer of milkfish seed. Some factors can influence seed quality, such as quality of egg and broodstock also rearing management of broodstock and larvae. The aim of this experiment was to evaluate morphological aspect (growth rate) and biological aspect (digestive enzymes activities) of seed from backyard hatchery and selected G2 milkfish. Research on grow-out of milkfish seed was conducted at the IMRAD ponds facility in Pejarakan, using milkfish seed produced by small-scale hatcheries as well as selected second-generation (G-2) seed, each with the density of 5,000 seed/pond (1 pond=0.5 ha). The seeds were fed with dry pellet and reared for 6 months.The result showed performance of seed in terms of morphological and biological influenced by broodstock itself and larvae rearing management.The growth of seed of HSRT origin with larvae rearing SOP had increased the length of and weight growth rates of 10.11% and 47.18%, respectively compared to seed G2 selected and 13.82% and 50.55% from seed HSRT without SOP. Enzymatic activity in HSRT seed with SOP was more efficient than that of selected G2 seed. Enzymatic activity in HSRT seed without SOP was the lowest in which correlated to the lowest growth. Seed from HSRT origin with SOP had better feed conversion ratio which was 28.29% lower than that of selected G2 seed and 22.64% lower than that of HSRT seed without SOP.

scholarly journals Quality of Canned `Ruddy' Kidney Beans as Influenced by Planting Date, Harvest Time, and Length of Storage before Canning

1990 ◽  
Vol 115 (6) ◽  
pp. 1051-1054 ◽  
Author(s):  
A.K. Forney ◽  
D.E. Halseth ◽  
W.C. Kelly
Keyword(s):  
Seed Size ◽  
Seed Quality ◽  
Planting Date ◽  
Harvest Time ◽  
Late Planting ◽  
Kidney Beans ◽  
Harvest Dates ◽  
Red Kidney Beans ◽  
Time Of Harvest

Four planting and harvest dates yielded 16 lots of `Ruddy' red kidney beans (Phaseofus vulgaris L.) that were canned immediately after harvest in the fall and from storage in January and April. Late planting resulted in a high percentage of acceptable beans, but time of harvest had little effect on subsequent canning quality. The most important defect was transverse splitting from the hilum. Hilum splits, drained weight, cooked weight, and seed size were all negatively correlated with acceptability. Seed size was the most important factor determining quality, with the smallest seeds exhibiting the fewest splits. Length of storage had significant but small effects on canned seed quality.

scholarly journals Respons Pertumbuhan, Fisiologi, dan Produksi Kedelai terhadap Pemberian Pupuk Nitrogen dengan Dosis dan Waktu yang Berbeda

2020 ◽  
Vol 26 (1) ◽  
pp. 24-31
Author(s):  
Firdaus Puja Santana ◽  
Munif Ghulamahdi ◽  
Iskandar Lubis
Keyword(s):  
Seed Quality ◽  
Block Design ◽  
N Fertilization ◽  
Planting Date ◽  
Seed Filling ◽  
Randomized Block Design ◽  
Two Factors ◽  
Filling Phase ◽  
Soybean Plants

Fertilization is needed to support the growth of soybean plants. Nitrogen is a type of fertilizer that is needed by soybeans in considerable amounts. Aplication of nitrogen at different times is able to affect the production and quality of soybean seeds. The purpose of this study was to attain information about the morphology, physiology, and production responses of two soybean varieties to the supply of N. This research was conducted at the Cikabayan Experimental Station, IPB University, Dramaga, Bogor Regency. This study used a completely randomized block design with two factors, namely two soybean varieties consisting of Tanggamus and Biosoy 1, and four combinations of N fertilizer doses that were without N fertilization, fertilized N at planting date, fertilized N at the seed filling phase, and fertilized N at planting date+seed filling phase with two replications. The dosage of urea fertilizer used was 25 kg ha-1, so that the N dosages is obtained 11,5 kg ha-1. The results showed that the application of N fertilizers at planting and during the seed filling phase (N3) was an effective time to increase soybean production.   Keywords: fertilization, morphology, seed quality

scholarly journals Seed Yield and Seed Quality of Some Soybean Genotypes as Influenced by Planting Date

2016 ◽  
Vol 7 (11) ◽  
pp. 1165-1171
Author(s):  
A. Morsy ◽  
Eman Mohamed ◽  
Th. Abou-Sin
Keyword(s):  
Seed Yield ◽  
Seed Quality ◽  
Planting Date ◽  
Soybean Genotypes

PENGUATAN KAPASITAS WIRAUSAHAWAN MIKRO MENGGUNAKAN METODE PENDAMPINGAN DI DESA MEKARGALIH, KECAMATAN JATINANGOR, KABUPATEN SUMEDANG

Dharmakarya ◽  
2020 ◽  
Vol 9 (2) ◽  
Author(s):  
RUDI Saprudin DARWIS
Keyword(s):  
Service Learning ◽  
Business Development ◽  
Small Scale ◽  
Learning Program ◽  
Student Service

ABSTRACTWeaknesses that are still commonly found in the businesses carried out by MSME entrepreneurs are the weakness of business accounting and packaging. Small scale business with limited marketing is seen as not requiring bookkeeping in its management and does not require packaging that is too good. This is the basis for the need for assistance to improve the capacity of MSME actors. Improving the capacity of MSME actors individually is done using the mentoring method. The choice to use a mentoring method to increase business productivity. Assistance was carried out with students of SMEs during the student service-learning program in Mekargalih Village, Jatinangor District, Sumedang Regency. Bookkeeping assistance is carried out by students by carrying out bookkeeping practices together so that the community can continue to learn good bookkeeping methods. Likewise, assistance in improving the quality of shredded chili packaging. Students help SMEs in designing packaging that will be used on their products. The assistance process is considered effective in supporting the business development of MSME entrepreneurs because the process can be carried out intensively. ABSTRAKKelemahan yang masih banyak ditemui pada usaha-usaha yang dilakukan pelaku UMKM adalah lemahnya pembukuan usaha dan pengemasannya. Skala usaha yang kecil dengan pemasaran yang terbatas dipandang tidak memerlukan pembukuan dalam pengelolaanya serta tidak memerlukan pengemasan yang terlalu bagus. Hal ini menjadi dasar perlunya dilakukan pendampingan untuk meningkatkan kapasitas pelaku UMKM. Peningkatan kapasitas pelaku UMKM secara perorangan dilakukan dengan menggunakan metode pendampingan. Pilihan untuk menggunakan metode pendampingan dalam meningkatkan produktivitas usahanya. Pendampingan dilakukan bersama mahasiswa terhadap pelaku UMKM selama pelaksanaan KKN mahasiswa di Desa Mekargalih, Kecamatan Jatinangor, Kabupaten Sumedang. Pendampingan pembukuan dilakukan mahasiswa dengan cara melakukan praktik pembukuan bersama-sama sehingga masyarakat bisa terus mempelajari cara pembukuan yang baik. Demikian juga dengan pendampingan dalam peningkatan mutu kualitas kemasan abon cabe. Mahasiswa membantu pelaku UMKM dalam merancang kemasan yang akan digunakan pada produknya. Proses pendampingan dinilai efektif dalam mendukung pengembangan usaha pelaku UMKM karena proses bisa dilakukan secara intensif.

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