Pod growth and seed composition in two genotypes of<i>Lablab purpureus</i>

Das, Shobhan; Fakir, M. S. A.

doi:10.5958/j.0976-0571.37.3.046

Cited by 7 publications

(4 citation statements)

References 4 publications

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“…Pods must be harvested at maximum pod length (67.7 cm) and pod fresh weight (28.56 g/pod) but before seeds become visible as bumps on the outside of the pod (Table 1). Similar finding was also reported by Das and Fakir (2014) for harvesting Lablab purpureus. Harrington (1972) stated that physiological maturity is the stage at which the seed reaches its maximum dry weight and nutrient flow into the seed from mother plant is ceased by the formation of abscission layer and causes breakage of vascular connection (Eastin et al, 1973).…”

Section: Changes In Pod Characteristics During Development and Maturasupporting

confidence: 90%

Assessing the Pattern of Seed Development and Maturation in Yard Long Bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdcourt]

Muthuramu¹,

Renugadevi²,

Raja³

et al. 2020

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Background: Seed maturation is genetically controlled process involves a sequence of morphological and physiological changes extending from fertilization to total independence from the mother plant. Yard long bean (Vigna unguiculata subsp. sesquipedalis (L) verdcourt) is an important leguminous vegetable crop which meets greater demand of the vegetable especially in South India and some parts of North India. However, information on optimum harvest time of yard long bean seeds are still limited. Hence, this study was carried out to determine the physiological maturity of yard long bean to obtain good quality of seeds for better planting value. Methods: The laboratory experiment was carried out at Department of Seed Science and Technology, Tamil Nadu Agricultural University, Coimbatore, India to determine the appropriate time of harvesting yard long bean cv. Arka Mangala seeds. The crop was raised as bulk in the field during kharif season of 2019 and the pods were harvested at three days interval from 3 days after anthesis (DAA) to 30 DAA and subjected for determinations of pod and seed characteristics. Result: The results revealed that pod length, pod fresh weight and pod dry weight increased rapidly during 3 DAA to 12 DAA and showed maximum pod length (67.7 cm), pod fresh weight (28.56 g/pod) at 12 DAA. The seeds attained physiological maturity at about 24 DAA with 22 per cent moisture content concurred with maximum dry weight (18.80 g/100 seeds), protein content (18.6%) and maximum physiological parameters viz., speed of germination (7.1), germination per cent (94%), root length (23.5 cm), shoot length (20.5 cm), dry matter production (0.949 g/10 seedlings), vigour index I (4136) and vigour index II (89).

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Section: Changes In Pod Characteristics During Development and Maturasupporting

confidence: 90%

Assessing the Pattern of Seed Development and Maturation in Yard Long Bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdcourt]

Muthuramu¹,

Renugadevi²,

Raja³

et al. 2020

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“…Pod width also followed the similar increasing trend as that of pod length, and the maximum pod width (2.8 cm) was observed at 30 DAA ( Figure 1). A similar trend of increasing pod length and width was reported in Lablab purpureus by Das and Fakir (2014). Pod growth rate (length and breadth) was maximum between 5 DAA and 10 DAA, after which it gradually decreased and altogether ceased after 30 DAA ( Figure 2).…”

Section: Resultssupporting

confidence: 82%

Effect of Maturity Stages on Seed Quality in Winged Bean [Psophocarpustetragonolobus (L.) DC.] – a Multipurpose Legume

Muthuramu¹,

Renugadevi²,

Raja³

et al. 2020

Madras Agricultural Journal

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Winged bean being a multipurpose leguminous vegetable, has been less concentrated in research. Considering its huge potential as a protein-rich crop with soybean-equivalent nutrients, the present study aimed to find out the physiological maturity stage in winged bean cv. Revathy to obtain good quality of seeds for better planting value. The developing pods and seeds of various maturity stages were harvested from 5 days after anthesis (DAA) to 60 DAA at five days interval and determined the pod and seed characteristics. The results showed that pod length, pod weight (fresh and dry weight) increased steeply from 5 DAA to 30 DAA and the maximum pod length (18.4 cm), and attained pod fresh weight of 27.84 g/pod at 30 DAA. The physiological maturity of seeds were attained at 50 DAA with seed moisture content of 27.8% coincided with maximum dry weight of seed (32.47 g/100 seeds), seed protein content (34.7%) and maximum physiological qualities viz., speed of germination (4.1), germination per cent (88%), root length (17.5 cm), shoot length (15.7 cm), dry matter production (0.894 g/10 seedlings), vigor index I (2922) and vigor index II (72). The visual indices for physiological maturity was turning of pod to brown color and the seed to black group of RHS color chart (202 A) at 50 DAA.

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“…Pod weight was supported by increasing of pod length which attained the highest at 35 DAA (Table 1). Similar finding was also reported by Das and Fakir (2014) in Lablab purpureus. Maturation process leads with loss of water depending upon atmospheric condition.…”

Section: Changes In Pod Characteristics During Seed Development and Maturationsupporting

confidence: 91%

Pattern of Seed Development and Maturation in Horse Gram (Macrotyloma uniflorum Lam.)

Prasath

Menaka

Geetha

et al. 2021

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Background: Seed maturation is genetically controlled process involves a series of morphological and physiological changes extending from fertilization to independence from the mother plant. Horse gram (Macrotyloma uniflorum Lam.) is an under exploited legume and it is an inexpensive source of protein, rich in minerals and vitamins. However, information on harvesting time of horse gram seeds are still limited. Therefore, this study was carried out in horse gram to determine the physiological maturity in obtaining good quality of seeds for better planting value.Methods: The laboratory experiment was carried out at Department of Seed Science and Technology, Agricultural College and Research Institute, Tamil Nadu Agricultural University, Madurai, India to determine the appropriate time of harvesting horse gram var. Paiyur 2 seeds. The crop was raised as bulk in the field during rabi season of 2019 and the pods were harvested in interval of seven days from 7 days after anthesis (DAA) to 56 DAA and subjected for determinations of pod and seed characteristics.Result: The result revealed that, pod length and pod fresh weight of seeds showed a steady increase upto 35 DAA showed maximum pod length (4.76 cm) and fresh weight of pods (6.903 g/10 pods). The seeds attained maximum germination (94%), dry weight (0.859 g/25 seeds) and vigour parameters viz., root length (17.7 cm), shoot length (8.8 cm), dry matter production (0.161 g/10 seedlings), vigour index I (2491) and vigour index II (15) on 49 DAA.

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Pod growth and seed composition in two genotypes ofLablab purpureus

Cited by 7 publications

References 4 publications

Assessing the Pattern of Seed Development and Maturation in Yard Long Bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdcourt]

Assessing the Pattern of Seed Development and Maturation in Yard Long Bean [Vigna unguiculata subsp. sesquipedalis (L.) Verdcourt]

Effect of Maturity Stages on Seed Quality in Winged Bean [Psophocarpustetragonolobus (L.) DC.] – a Multipurpose Legume

Pattern of Seed Development and Maturation in Horse Gram (Macrotyloma uniflorum Lam.)

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