The isolation of carrot embryos and their measurement by machine vision for the prediction of crop uniformity

Keefe, P. D.; Draper, S. R.

doi:10.1080/14620316.1986.11515731

Cited by 6 publications

(4 citation statements)

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“…However, embryo length was highly correlated with the rate of germination and total seedling length (Table 4), which are less labor-demanding than embryo extraction and measurement. The development of semi-automated techniques for embryo extraction and measurement may change this situation (14).…”

Section: Discussionmentioning

confidence: 99%

Relationships of Plant Density and Harvest Index to Seed Yield and Quality in Carrot

Oliva

Tissaoui

Bradford

1988

J. Amer. Soc. Hort. Sci.

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Carrot (Daucus carota L. cv. Danvers) seed were produced at plant spacings of 0.05, 0.10, 0.20, and 0.30 m in 0.80-m rows to give populations of 25, 13, 6, and 4 plants/m2. Samples from the adjacent commercial carrot seed field provided an additional density of 36 plants/m2. Seed yield, harvest index, and seed quality were evaluated with respect to umbel order and plant density. Phenological development was unaffected by plant density, but plant height increased significantly as density increased. The number of umbels per plant and the number of seeds per umbel decreased with increasing plant density, while seed weight was unaffected. The proportion of the seed contributed by primary umbels increased from 20% at the lowest to 60% at the highest density. Seed yield per plant declined continuously as population increased, but seed yield per unit area increased to a maximum at 12 plants/m2, then declined. Total biological yield (above-ground biomass) rose to a plateau level with increasing plant population. Ceiling biological yield coincided with maximum seed yield. Seed quality within each umbel order, assessed by germination percentage and rate, seedling growth, embryo length, and abnormal or embryoless seeds, was unaffected by plant density, but consistently decreased from primary to tertiary umbel orders. Harvest index (seed yield/biological yield) was highly correlated with seed quality. The relationship between harvest index and plant density in carrot seed production may be useful in optimizing plant populations for maximum seed yield and quality.

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Section: Discussionmentioning

confidence: 99%

Relationships of Plant Density and Harvest Index to Seed Yield and Quality in Carrot

Oliva

Tissaoui

Bradford

1988

J. Amer. Soc. Hort. Sci.

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“…In addition, its seeds are also utilized as snacks: fried seeds and chotpoti. Seed quality affects the performance of any crop under the field conditions in several ways [2][3][4] . In ad-dition, the initial seed quality also affects the storage life of seeds.…”

Section: Introductionmentioning

confidence: 99%

Quality assessment of pea (Pisum sativum L.) seeds using the controlled deterioration technique

Rahman¹,

Rahman²,

Hasan³

et al. 2019

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A three-factor experiment was set at the Horticulture Laboratory, Hajee Mohammad Danesh Science and Technology University, Dinajpur, to study the effects of the controlled deterioration (CD) on the pea seeds at the constant temperature of 35 ℃. The 3 factors considered were: 3 pea seed sources (Rangpur Local/RL, Dinajpur Local/DL and Thakurgaon Local/TL); 3 ageing periods (0, 8 and 16 days); and 3 seed moisture contents (12, 16 and 20% MC). The 27 treatment combinations compared in the CRD with the 3 repetitions for the 8 arenas were: % germination, % abnormal seedlings, % dead seeds, % soil emergence and seedling evaluation test for the root and shoot lengths as well as their dry matter contents. Identical prototypes of notable (5–1% level) degradations were recorded everywhere. But the disparities were lucid under the extreme stresses. Moreover, highly noteworthy (1% level) relations were traced amid all the traits ranging from -0.9847 (soil emergence × abnormal seedling) to 0.9623 (soil emergence × normal seedling). So, the CD technique was very effectual in judging the physiological statuses of the seed sources studied. Thus, the germination test might be add-on by a vigor test, the latter of which could be assessed by quantifying the seedlings’ root and shoot lengths and/or their dry matter accumulations. Moreover, in the seed quality certification, the suitable limits of vigor for the chosen traits could also be got by this technique. But the seeds of several pea varieties should be exploited to fix-up the agreeable limits of the traits. Furthermore, to save time, the ageing period could be squeezed by raising the seed MC.

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“…In addition, its seeds are also utilized as snacks: fried seeds and chotpoti. Seed quality affects the performance of any crop under the field conditions in several ways [2][3][4] . In addition, the initial seed quality also affects the storage life of seeds.…”

Section: Introductionmentioning

confidence: 99%

Quality assessment of pea (Pisum sativum L.) seeds using the controlled deterioration technique

Baque

Rahman²,

Rahman³

et al. 2018

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A three-factor experiment was set at the Horticulture Laboratory, Hajee Mohammad Danesh Science and Technology University, Dinajpur to study the effects of the controlled deterioration (CD) on the pea seeds at the constant temperature of 350C. The 3 factors considered were: 3 pea seed sources (Rangpur Local/RL, Dinajpur Local/DL and Thakurgaon Local/TL); 3 ageing periods (0, 8 and 16 days); and 3 seed moisture contents (12, 16 and 20% MC). The 27 treatment combinations compared in the CRD with the 3 repetitions for the 8 arenas were: % germination, % abnormal seedlings, % dead seeds, % soil emergence and seedling evaluation test for the root and shoot lengths as well as their dry matter contents. Identical prototypes of notable (5-1% level) degradations were recorded everywhere. But the disparities were lucid under the extreme stresses. Moreover, highly noteworthy (1% level) relations were traced amid all the traits ranging from -0.9847 (soil emergence × abnormal seedling) to 0.9623 (soil emergence × normal seedling). So, the CD technique was very effectual in judging the physiological statuses of the seed sources studied. Thus, the germination test might be add-on by a vigor test, the latter of which could be assessed by quantifying the seedlings’ root and shoot lengths and/or their dry matter accumulations. Moreover, in the seed quality certification, the suitable limits of vigor for the chosen traits could also be got by this technique. But the seeds of several pea varieties should be exploited to fix-up the agreeable limits of the traits. Furthermore, to save time, the ageing period could be squeezed by raising the seed MC.

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The isolation of carrot embryos and their measurement by machine vision for the prediction of crop uniformity

Cited by 6 publications

References 0 publications

Relationships of Plant Density and Harvest Index to Seed Yield and Quality in Carrot

Relationships of Plant Density and Harvest Index to Seed Yield and Quality in Carrot

Quality assessment of pea (Pisum sativum L.) seeds using the controlled deterioration technique

Quality assessment of pea (Pisum sativum L.) seeds using the controlled deterioration technique

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