Seedling emergence of chickpea (Cicer arietinum L.), pigeonpea (Cajanus cajan L.) and pearl millet (Pennisetum typhoides L.) Effect of differential soil crusting, as induced by raindrop size, and depth of sowing

1987 ◽  
Vol 104 (2) ◽  
pp. 263-268 ◽  
Author(s):  
B. Sivaprasad ◽  
K. S. Sundara Sarma
Keyword(s):  
Cicer Arietinum ◽  
Pearl Millet ◽  
Cajanus Cajan ◽  
Seedling Emergence ◽  
Pennisetum Typhoides ◽  
Cicer Arietinum L ◽  
Soil Crusting ◽  
Raindrop Size

Response of kabuli chickpea to seed size and planting depth

2003 ◽  
Vol 83 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Y. T. Gan ◽  
P. R. Miller ◽  
C. L. McDonald
Keyword(s):  
Cicer Arietinum ◽  
Seed Size ◽  
Seed Yield ◽  
Seedling Emergence ◽  
Dry Weight ◽  
Production Costs ◽  
Planting Depth ◽  
Cicer Arietinum L ◽  
Shoot Dry Weight ◽  
Small Seed

The use of small seed can reduce the production costs of kabuli chickpea (Cicer arietinum L.) 15 to 25% by reducing the amount of seed needed per unit area, but little is known about the effects of seed size on stand establishment, plant growth, and seed yield in semiarid environments. We conducted a field study in southwest Saskatchewan from 1998 to 2000 and determined the chickpea responses to seed size under different planting depths. Crops grown from small (7.1–9.0 mm) diameter seed required the same number of days to emerge (16.7 d) and mature (106 d) as those from large (9.1–11.0 mm) diameter seed. There were no differences in plant establishment, shoot dry weight, pod production, or seed yield between the two seed sizes when planted at a 50-mm depth. However, the small-seeded crop produced 7% lower plant stand, 4% lower seed yield, and 3% less seed 1799-mm diameter compared to the large-seeded crop when planted at a 100-mm depth (P < 0.05). Large-seed ed chickpea plants were 20 mm (4%) taller, and the height of the lowest pods from the soil surface was 11 to 13 mm (5%) higher than those from the small seed, suggesting an improvement of harvestability. In general, planting depth did not affect seedling emergence, shoot dry weight, or seed yield, but when small seed was used, chickpea sown at the 50-mm depth increased seed yield by 6% compared to that at the 100-mm depth. Kabuli chickpea produced an average of >20 pods plant-1, with 77% of them containing one seed per pod, 10% with two seeds per pod, and the remainder containing no seed; this ratio of pod fertility was independent of seed size or planting depth. Our results indicate that the use of small seed and shallow planting can reduce the production costs of chickpea by $31 to $52 ha-1 without a seed yield penalty. This level of saving in production far exceeds the otherwise increased value of $4 to $6 ha-1 with the use of large seed which produces a higher (3%) proportion of ≥ 9-mm diameter seed. Key words: Seedling emergence, seed mass, pod production, Cicer arietinum L.

Studies on Seed Longevity of Pigeonpea (Cajanus cajan L.) and Chickpea (Cicer arietinum L.) under Ambient Storage Condition

2021 ◽  
Author(s):  
Ravindra Kumar ◽  
Anuja Gupta ◽  
Kumkum Verma
Keyword(s):  
Cicer Arietinum ◽  
Cajanus Cajan ◽  
Seed Quality ◽  
Seed Viability ◽  
Storage Period ◽  
Storage Condition ◽  
Quality Parameters ◽  
Cicer Arietinum L ◽  
Ambient Storage ◽  
Vigour Index

Background: Pulses are very crucial to meet the requirements of dietary proteins in the human diet especially for the predominantly vegetarian population in India. Pigeonpea [Cajanus cajan (L.) Millsp.] and chickpea (Cicer arietinum L.) are important pulses grown in India. The seeds of these crops are highly vulnerable to various microorganisms, both in the field and during storage, which play an important role in reducing the seed viability, germination and vigour causing considerable loss in yield and quality. There is no suitable recommendation available to maintain seed quality during storage of pulses, hence present study was undertaken. Methods: Seeds of pigeonpea and chickpea were treated with Captan and Carbendazim 50% WP fungicides @ 2.0 g/Kg of seed and stored under ambient condition. The samples were drawn at three months interval to assess the effect of storage on seed quality parameters. The vigour index I, seed germination and speed of germination of these seed samples were determined using ISTA rules. The detection of seed mycoflora in pigeonpea and chickpea seed samples was carried out by the blotter test as recommended by the International Seed Testing Association. Result: Total sixteen fungal species were recorded on stored seeds. Maximum incidence of Aspergillus fumigatus (19.83%), A. flavus (14.88%), A. niger (12.40%), Alternaria alternata (11.57%), Fusarium oxysporum (8.26%), Rhizopus stolonifer (7.44%) and Penicillium notatum (5.79%) were recorded on untreated seed of pigeonpea cv. P. 2001 after 18 months of storage. The per cent germination, speed of germination and vigour index of the stored seeds decreased with the increase in the storage period whereas the total number of fungi increased with the storage period, irrespective of treatments. Among the tested cultivars, germination in pigeonpea (cv. P. 991) remained above IMSCS ( greater than 75%) upto 18 months of storage under ambient storage condition. However, the germination of pigeonpea cv. P. 2001 seed could be maintained above IMSCS ( greater than 75%) up to 12 months only. In chickpea (local cultivar) seed, the germination remained above IMSCS ( greater than 85%) up to 9 months only under ambient storage, however seed treatment with either Captan or Carbendazim could prolong the longevity upto 12 months of storage.

DIFERENCIACIÓN DE ACCESIONES DE GARBANZO MEDIANTE CARACTERES MORFOLÓGICOS Y MOLECULARES

2018 ◽  
Vol 41 (4) ◽  
pp. 469-476
Author(s):  
Ernestina Valadez-Moctezuma ◽  
Anselmo de J. Cabrera-Hidalgo
Keyword(s):  
Cicer Arietinum ◽  
Cicer Arietinum L

El garbanzo (Cicer arietinum L.) es una de las principales leguminosas de grano cultivadas en el mundo. México es de los diez principales productores a nivel mundial con una producción total de 171 mil toneladas de grano. Este cultivo presenta alto nivel de autogamia y de monotonía genética, lo que dificulta la diferenciación de genotipos élite. En este estudio preliminar se evaluó la variabilidad de 57 genotipos de diferentes áreas geográficas mediante caracteres morfológicos y marcadores moleculares tipo RAPD e ISSR. El análisis de correspondencia múltiple mostró que los mayores valores discriminantes fueron el color de la flor azul y semillas grandes y de forma redondeada, pero el agrupamiento respectivo no diferenció a las accesiones, incluyendo las especies silvestres; sin embargo, el análisis UPGMA logró una mejor separación. Los marcadores RAPD aun cuando generaron perfiles de ADN, no fueron informativos, mientras que los ISSR diferenciaron a las 57 accesiones de C. arietinum utilizadas y a la especie silvestre C. reticulatum, lo que los hace buenos candidatos para caracterizar este cultivo. Este estudio sirvió como base para desarrollar otro sistema de marcadores moleculares más eficiente en esta especie.

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