scholarly journals Correlation of Early Growth with Average Germination Period and True Seed Weight in Sugar Beet under Direct Sowing Cultivation.

2001 ◽  
Vol 70 (4) ◽  
pp. 510-514 ◽  
Author(s):  
Yuji MUKASA ◽  
Naoki OGATA
Keyword(s):  
Sugar Beet ◽  
Seed Weight ◽  
Early Growth ◽  
Germination Period ◽  
True Seed ◽  
Direct Sowing

Grading monogerm sugar-beet seed and its influence on performance

1974 ◽  
Vol 83 (1) ◽  
pp. 125-133 ◽  
Author(s):  
P. C. Longden ◽  
R. K. Scott ◽  
D. W. Wood
Keyword(s):  
Sugar Beet ◽  
Seed Weight ◽  
Field Experiments ◽  
Plant Density ◽  
Seedling Emergence ◽  
Growth And Yield ◽  
Viable Seed ◽  
True Seed ◽  
High Plant Density ◽  
Fruit Diameter

SUMMARYFrom monogerm sugar-beet seed as harvested non-viable fruits have to be eliminated, multigerm ones rejected and the size made sufficiently uniform for use in precision drills. Seed which had been gently rubbed to remove some of the cortex was graded for diameter, thickness and by aspiration, either singly or in combination. Effects of grading were determined by laboratory germination tests, radiography and field sowings in which seedling emergence and crop growth and yield were recorded.Grading by thickness was effective in removing multigerm fruits. Grading by aspiration and diameter rejected non-viable seed and reduced the variation in size. By combining all three grading methods, samples of seed of 80% germination and 90% monogermity were produced, provided the seed lot as threshed gave at least 50% germination. True seed weight increased with fruit diameter but only the first aspiration was effective in removing light true seeds. Radiography showed that both aspiration and, to a less extent, grading by diameter were effective in removing most empty fruits but neither eliminated those with shrivelled seed. The field experiments confirmed that increase in fruit diameter or aspiration gave more seedlings. Even at uniform, high plant density, sugar yields were less from the smallest (less than 3 mm diameter) than from the other grades of seed. The initial aspiration also improved sugar yield but further aspiration decreased yield.

scholarly journals Near-Infrared Diffuse Reflectance Spectroscopic Analysis of Ratio of True Seed Weight in Sugar Beet Seed

2004 ◽  
Vol 6 (4) ◽  
pp. 179-185
Author(s):  
Kazunori Taguchi ◽  
Yuji Mukasa ◽  
Hideyuki Abe ◽  
Masakatsu Tanaka
Keyword(s):  
Sugar Beet ◽  
Seed Weight ◽  
Diffuse Reflectance ◽  
Near Infrared ◽  
Spectroscopic Analysis ◽  
True Seed

The relation between inhibitory substances and variability in time to germination of sugar beet clusters

1969 ◽  
Vol 73 (3) ◽  
pp. 337-346 ◽  
Author(s):  
J. P. Battle ◽  
W. J. Whittington
Keyword(s):  
Sugar Beet ◽  
Aqueous Extract ◽  
Inhibitory Effect ◽  
Aqueous Extracts ◽  
Germination Inhibitors ◽  
Positive Correlation ◽  
True Seed ◽  
Germination Characteristics ◽  
Overhead Irrigation ◽  
Good Germination

SummaryEvidence was obtained for the presence of germination inhibitors in the aqueous extract from sugar-beet clusters. A positive correlation was shown between the germination of cress seeds moistened with aqueous extracts from clusters of twenty sugarbeet plants and the germination characteristics of other clusters from the same plants. Inhibition was thus greater in extracts from clusters with poor rather than good germination, and also in extracts from immature clusters or those which had received overhead irrigation. The inhibitory effect was found to be located in the perianth and pericarp tissue rather than in the true seed.

scholarly journals Effect of different tillage intensity on yields and yield-forming factors in winter wheat

2012 ◽  
Vol 60 (5) ◽  
pp. 89-96
Author(s):  
Martin Houšť ◽  
Blanka Procházková ◽  
Pavel Hledík
Keyword(s):  
Sugar Beet ◽  
Winter Wheat ◽  
Climatic Conditions ◽  
Reduced Tillage ◽  
Minimum Tillage ◽  
Preceding Crop ◽  
The Given ◽  
Direct Sowing ◽  
Growing Region

The paper presents results of a study on application of minimum tillage technologies when growing winter wheat. Experiments were performed in the sugar-beet-growing region with loamy chernozem within the period of 2005–2009. Aanalysed and evaluated were effects of different methods of soil processing on yield-forming factors in stands of winter wheat grown after three different preceding crops (i.e. alfalfa, maize for silage and pea). Evaluated were the following four variants of tillage: (1) conventional ploughing to the depth of 0.22 m (Variant 1); (2) ploughing to the depth of 0.15 m (Variant 2); (3) direct sowing into the untilled soil (Variant 3), and (4) shallow tillage to the depth of 0.10 m (Variant 4).The effect of different tillage intensity on winter wheat yields was statistically non-significant after all forecrops. After alfalfa, the highest and the lowest average yields were recorded in Variant 2 (i.e. with ploughing to the depth of 0.15 m) and Variant 3 (direct sowing into the untilled soil), respectively. After maize grown for silage, higher yields were obtained in Variant 2 and Variant 1 (conventional ploughing) while in Variants 4 and 3 the obtained yields were lower. When growing winter wheat after pea as a preceding crop, the highest and the lowest average yields were recorded after direct sowing (Variant 3) and in Variant 1 (i.e. ploughing to the depth of 0.22 m), respectively. Results of studies on effect of different tillage technologies on yields of winter wheat crops indicate that under the given pedological and climatic conditions it is possible to apply methods of reduced tillage intensity. However, the choice of the corresponding technology must be performed with regard to the type of preceding crop.

scholarly journals Herbisit Uygulamaları Yapılan Amaranthus retroflexus L. Bitkilerinden Elde Edilen Tohumların Çimlenme Özellikleri

2020 ◽  
Vol 8 (4) ◽  
pp. 833-839
Author(s):  
Oğuzhan Cerit ◽  
Derya Öğüt Yavuz
Keyword(s):  
Sugar Beet ◽  
Seed Weight ◽  
Germination Rate ◽  
Amaranthus Retroflexus ◽  
Germination Time ◽  
Germination Characteristics ◽  
Mean Germination Time

Amaranthus retroflexus L. is among the important weeds in sugar beet. The aim of this study was to determine the germination capacities of the seeds obtained from A. retroflexus plants, who survived after the application of chloridazon (C), metamitron (M) and ethofumesate + phenmedipham + desmedipham + lenacil (EPDL) herbicides and some combinations. Parameters of total germination rate (%), normal/abnormal germination rate (%), mean germination time (day) and seed weight (g) were defined. As a result, germination characteristics of A. retroflexus plants exposed to chloridazon + ethofumesate + phenmedipham + desmedipham + lenacil 2, chloridazon + metamitron (post-emergence) and metamitron (pre-emergence) + metamitron (post-emergence) combinations were significantly affected compared to the seeds obtained from the untreated plants. In terms of germination characteristics, the lowest total germination rate (85%) was found in metamitron (pre-emergence) + metamitron (post-emergence) combination.

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