Apical Shoot Harvest Affects Growth and Apical Shoot and Fruit Yields of Pumpkin

Olasantan, F. O.

doi:10.1300/j484v12n03_07

Cited by 3 publications

(7 citation statements)

References 11 publications

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“…The quality of young leaves of okra as a vegetable decreases with age as the fibre content increases (Olasantan 1988;Schippers 2000). The leaves of the uppermost primary branches are usually smaller and younger and are less fibrous and more succulent than those of the older, lower branches, and are often found to be the most prized and valued by consumers as a vegetable in terms of size, softness, palatability, and nutritional values, as has also been found for sweet potato (Dahniya et al 1985) and pumpkin (Olasantan 2007). Hamm & Charrier (1997) and Schippers (2000) reported that young leaves of okra contain 2 .…”

Section: Discussionmentioning

confidence: 99%

Effect of pruning on growth, leaf yield and pod yields of okra (Abelmoschus esculentus(L.) Moench)

Olasantan

Salau

2007

J. Agric. Sci.

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SU MMARYYoung leaves and pods of okra (Abelmoschus esculentus (L.) Moench) are edible, and so a crop management strategy for removing edible leaves while sustaining good pod yields is required. Pruning treatments were imposed on apically debudded okra plants for 3 years to assess effects of removing a quarter, half or three-quarters of the primary branches on growth and fresh leaf and pod yields. Pruning significantly (P<0 . 05) delayed fruiting by 8-10 days, extended length of harvest duration by 12-15 days and increased number of pods/plant by 10-40 % and pod yield by 9-36 % more than the control plants which had neither apical bud removal nor pruning. However, no difference in pod weight or pod length was found between these treatments and the control. Three-quarters pruning significantly (P<0 . 05) increased fresh leaf yield by 29-49 %, but not all the leaves were desirable for consumption because of high fibre content. Decreases were seen in the numbers of secondary branches, shoot dry weight and pod yields (by 40-57, 22-36 and 22-30 %, respectively, more than a quarter or half pruning). Although early production of pods in the control plants is often important for early maturity and high market prices, the present study found that a delay in fruiting, an extension in length of harvest duration and an increase in pod yield in plants with a quarter or half pruning enhanced staggered production and maximal pod yield. This helps to ensure a better market price and to enable growers avoid a glut on the market. A direct promotional effect of pruning on pod yields provides a possible strategy for growing okra for both leaf and pod harvests. A quarter or half pruning from the upper parts of the main stems of apically debudded plants to ensure good production and quality of leaves and pods is therefore recommended if okra is to be grown for both leaf and pod yields.

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Section: Discussionmentioning

confidence: 99%

Effect of pruning on growth, leaf yield and pod yields of okra (Abelmoschus esculentus(L.) Moench)

Olasantan

Salau

2007

J. Agric. Sci.

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“…The crop prefers areas of medium rainfall and does not grow well under very wet conditions. Pumpkin may be useful in biological weed and erosion control in tropical agriculture (Olasantan, 2007). Apical shoots and fruits of pumpkin are edible by humans and some livestock, and they are a good source of protein, vitamins and minerals (Purseglove, 1977).…”

Section: Introductionmentioning

confidence: 99%

Effect of Population Density and Sowing Date of Pumpkin on Soil Hydrothermal Regime, Weed Control and Crop Growth in a Yam–pumpkin Intercrop

Olasantan

2007

Ex. Agric.

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Pumpkin (Cucurbita maxima) is used for live mulch and edible apical shoots, seeds and fruits, and requires that a strategy for using it as ground cover in intercropping with food crops be developed while sustaining reasonable apical and fruit yields. Field experiments were conducted in 1999–2001 to investigate the effects of population density (5000, 10 000 and 15 000 plants ha−1) and sowing date (March, April and May) of pumpkin on the soil hydrothermal regime, earthworm casts, weed control, and crop growth and yields in a Yam–pumpkin intercrop. Growing pumpkin between yam mounds reduced maximum diurnal soil temperature by 4.3–8.1 °C, weeding frequency by 52% and weed dry biomass by 50–67%, while soil moisture was conserved by 48–62 g kg−1, earthworm casts were increased by 58–68% and yam tuber yield by 30–52%, irrespective of population density or sowing date, compared with yam monoculture. Intercropping had no effect on the growth and fruit yields of pumpkin, but leaf area index and apical shoot and fruit yields increased by 30–49% as the plant population increased to 10 000 plants ha−1, beyond which there was no further significant increase. Furthermore, apical shoot and fruit yields were remarkably reduced when pumpkin was sown beyond April. Increasing pumpkin population up to 10 000–15 000 plants ha−1 reduced soil temperatures by 0.7–1.2 °C, weeding frequency by 15–35% and weed dry biomass by 36–57%, conserved soil moisture by 46–63 g kg−1, and increased earthworm casts by 20% compared to 5000 plants ha−1 in both cropping systems. Although the sowing date did not affect earthworm casts and weeding frequency, pumpkin sown in March or April reduced soil temperatures by 2.6–4.0 °C and weeds by 27%, and conserved soil moisture by 15–37 g kg−1, compared with May-sown plants. Intercropping pumpkin up to 10 000 plants ha−1 with yam at an optimal sowing date target in March-April is recommended for maximum development and productivity, and when pumpkin is used for live mulch in yam plots to reduce supra-optimal soil temperature, excessive evaporation and weed growth.

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“…On plants experienced pruning, there was no addition on number of primary branchs but the stems left keep growing and become long. This was due to the improvement in light interception that possibly resulted in an improvement in vegetative development (Olasantan, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…The reduction in the number of flowers on plants experienced pruning could be due to some factors. These include reduction in the numbers of secondary branches and leaves and consequently the photosynthetic area of the treated plants and the amount of assimilate available for developing flowers (Olasantan, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Maintenance of selected branches through pruning supposed to improve the balance of vegetative and generative growth by improving photosynthesis capacity of the leaves. Olasantan (2007) reported that in pruned plants, mutual shading of leaves would have reduced, and consequently the amounts of light energy available for growth and development of the plants would have increased since the remaining leaves would be photosynthesizing more than they would be respiring. This experiment is aimed at studying the response of vegetative and generative growth of roselle experienced pruning with different number of branch.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of Apex Pruning on Vegetative and Generative Growth of Roselle (Hibiscus sabdariffa L.)

Susanto¹,

Aji²,

Rahayu³

2015

J Hort Indonesia

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ABSTRAKPenelitian ini bertujuan untuk mempelajari pengaruh jumlah cabang pada pertumbuhan vegetatif dan generatif rosela. Penelitian dilaksanakan di Kebun Percobaan Cikabayan pada bulan Februari sampai Juni 2009. Percobaan disusun dalam rancangan acak lengkap dengan faktor tunggal dan terdiri dari empat tingkat pemangkasan: kontrol (tanpa pemangkasan), pemangkasan pucuk dengan 5 cabang, pemangkasan pucuk dengan 10 cabang, dan pemangkasan pucuk dengan 15 cabang, masing-masing dengan tiga ulangan. Hasil penelitian menunjukkan bahwa pemangkasan dengan nomor yang berbeda dari cabang memberi efek pada penurunan pada beberapa variabel pertumbuhan vegetatif dan generatif rosela. Tanaman dengan pemangkasan pucuk pada 15 cabang tidak menunjukkan perbedaan pada jumlah batang utama, jumlah sekunder batang, jumlah daun, jumlah bunga, berat segar dan kering calyxes, dan konten antosianin di calyxes. Tanaman mengalami pemangkasan dengan nomor yang berbeda dari cabang cenderung memiliki konten antosianin lebih tinggi dibandingkan pada kontrol. Umumnya, tanaman dengan 15 cabang utama memberikan efek terbaik pada kedua pertumbuhan vegetatif dan generatif rosela.

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Apical Shoot Harvest Affects Growth and Apical Shoot and Fruit Yields of Pumpkin

Cited by 3 publications

References 11 publications

Effect of pruning on growth, leaf yield and pod yields of okra (Abelmoschus esculentus(L.) Moench)

Effect of pruning on growth, leaf yield and pod yields of okra (Abelmoschus esculentus(L.) Moench)

Effect of Population Density and Sowing Date of Pumpkin on Soil Hydrothermal Regime, Weed Control and Crop Growth in a Yam–pumpkin Intercrop

The Effect of Apex Pruning on Vegetative and Generative Growth of Roselle (Hibiscus sabdariffa L.)

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