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Sowing

About: Sowing is a research topic. Over the lifetime, 33888 publications have been published within this topic receiving 273438 citations. The topic is also known as: seeding.


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Journal ArticleDOI
TL;DR: Results indicate that examination of suites of early- and late-succesional native species can provide a highly effective mix for revegetation projects, which reduces the potential for negative ecological consequences and provides added benefits associated with wholly native plant communities.

59 citations

Journal Article
TL;DR: Wheat sown by drilling method at the seed rate of 150 kg/ha significantly increased the plant vigor and yield and was associated with the progressive increase in all growth components.
Abstract: 3 Abstract: A field experiment was conducted during winter season of 2004-2005. Three sowing methods and seed rate were evaluated in a four replicated RCBD method. Results revealed that all growth and yield parameters were significantly affected by the sowing methods and seed rates. The interaction of sowing methods and seed rates significantly effected on spikes per plant and grains per spike, while other characters showed non significant interactions. Wheat sown by drilling method at the seed rate of 150 kg/ha significantly increased the plant vigor and yield. This increase in yield was associated with the progressive increase in all growth components.

59 citations

Journal ArticleDOI
TL;DR: Zheng et al. as discussed by the authors investigated variation of grain yield, soil water-nutrient content and plant growth in a local cultivar (Zheng Dan 958) of maize at three planting densities with extra organic manure application in a semi-arid region of Northwestern China.

59 citations

Journal ArticleDOI
TL;DR: This study describes the germination responses of ten tropical dune species to several factors to which their seeds are exposed in the field, finding that sand dune endemics were the most successful in emerging from sand burial; coastal pantropicals were very tolerant to high saline concentrations and recovered completely.
Abstract: This study describes the germination responses of ten tropical dune species to several factors to which their seeds are exposed in the field. Species studied were: three sand dune endemics (Amaranthus greggii, Palafoxia lindenii, and Trachypogon gouini), three pantropical coastal species (Sesuvium portulacastrum, Sporobolus virginicus and Ipomoea stolonifera) and four cosmopolitan grasses also found inland (Panicum repens, Panicum maximum, Pappophorum vaginatum and Andropogon glomeratus). Six species germinated when exposed to different constant temperatures. Four required temperature fluctuation (S. portulacastrum, P. lindenii, S. virginicus, P. repens). Light promoted germination of three species (S. Portulacastrum, P. vaginatum, P. lindenii). Species varied in their degree of sensitivity to salinity. Seeds of T. gouini, I. stolonifera, S. portulacastrum, P. repens, P. Maximum and P. vaginatum were able to germinate under some of the salinity concentrations. Not all species were able to recover after being transferred to distilled water. Seedling emergence was inhibited when seeds were buried. This response was related to depth and to seed size. S. portulacastrum and S. virginicus were the most affected. Nitrates only affected germination response of two species. Seed age promoted germination under a wider range of conditions. P. lindenii showed very heterogeneous responses depending on seed cohort. No dormancy mechanisms were found, other than a thermoperiod and/or light requirement for some of the species. Cosmopolitan grasses tolerated both sand burial and salinity, although the endemics were the most successful in emerging from sand burial; coastal pantropicals were very tolerant to high saline concentrations and recovered completely.

59 citations

Journal ArticleDOI
TL;DR: Pre-conversion of non-embryonic synthetic seeds is a novel technique that provides a convenient alternative to somatic embryo-derived artificial seeds in plantation eucalypts and exhibited almost 100% survival in the nursery without mist irrigation.
Abstract: A protocol was developed for short-term preservation and distribution of the plantation eucalypt, Corymbia torelliana × C. citriodora, using alginate-encapsulated shoot tips and nodes as synthetic seeds. Effects of sowing medium, auxin concentration, storage temperature and planting substrate on shoot regrowth or conversion into plantlets were assessed for four different clones. High frequencies of shoot regrowth (76–100%) from encapsulated explants were consistently obtained in hormone-free half- and full-strength Murashige and Skoog (MS) sowing media. Conversion into plantlets from synthetic seeds was achieved on half-strength MS medium by treating shoot tips or nodes with 4.9–78.4 μM IBA prior to encapsulation. Pre-treatment with 19.6 μM IBA provided 62–100% conversion, and 95–100% of plantlets survived after acclimatisation under nursery conditions. Synthetic seeds containing explants pre-treated with IBA were stored for 8 weeks much more effectively at 25°C than at 4°C, with regrowth frequencies of 50–84% at 25°C compared with 0–4% at 4°C. To eliminate the in vitro culture step after encapsulation, synthetic seeds were allowed to pre-convert before sowing directly onto a range of ex vitro non-sterile planting substrates. Highest frequencies (46–90%) of plantlet formation from pre-converted synthetic seeds were obtained by transferring shoot tip-derived synthetic seeds onto an organic compost substrate. These plantlets exhibited almost 100% survival in the nursery without mist irrigation. Pre-conversion of non-embryonic synthetic seeds is a novel technique that provides a convenient alternative to somatic embryo-derived artificial seeds.

59 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
20232,551
20225,773
2021919
20201,657
20192,181