Forecasting the field performance of Austrian pine seedlings using morphological attributes

Ivetić, Vladan; Grossnickle, Steven C.; Škorić, Mirko

doi:10.3832/ifor1722-009

Cited by 41 publications

(40 citation statements)

References 26 publications

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“…Under these environmental conditions, planting small seedlings is considered to be a conservative strategy that can be expedient insofar as planting shock is reduced by minimizing shoot water losses (Lamhamedi et al 1997, Trubat et al 2010, Cortina et al 2013, Ovalle et al 2016. Notwithstanding this, the specific literature on dry areas is somewhat contradictory, with studies showing that seedling size has positive , Villar-Salvador et al 2012, 2013b, Oliet et al 2013, Tsakaldimi et al 2013 or negative effects (Trubat et al 2008, Zida et al 2008, Cortina et al 2013, Ivetic et al 2016 or both (Navarro et al 2006) on planting performance.…”

Section: Introductionmentioning

confidence: 99%

Matching seedling size to planting conditions: interactive response with soil moisture

Oliet¹,

Urbina²,

Sánchez‐Pinillos³

et al. 2019

iForest

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Seedling size is a very important issue when producing plants for restoration projects. Scientific evidence on the appropriate size for drylands is contradictory. Thus, the aim of this study was to evaluate the effect of seedling size during first establishment by conducting a short term greenhouse experiment with Pinus canariensis containerized seedlings. A selection of large (mean height: 33.7 cm) and small (14.3 cm) one-year-old seedlings were planted in pots under two volumetric water content regimes: dry (7%) and wet (15%). Midday shoot water potential was measured in two periods: 10 (prior to root protrusion) and 30 (once the roots had protruded from the plug) days after planting. The length of protruding roots was measured after 30 days. One month after planting, the large seedlings under the dry regime produced more new roots than the small seedlings, but also showed the highest midday water potential values. Therefore, the greater root growth of the former did not offset the higher transpiration demand when planted in dry soils. These results suggest that under uncertainty about the soil humidity levels of dry areas, using small seedlings can improve their short-term survival after planting.Citation: Oliet JA, Ortiz de Urbina E, Sánchez-Pinillos M, Tardío-Cerrillo G (2019). Matching seedling size to planting conditions: interactive response with soil moisture. iForest 12: 220-225.

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Section: Introductionmentioning

confidence: 99%

Matching seedling size to planting conditions: interactive response with soil moisture

Oliet¹,

Urbina²,

Sánchez‐Pinillos³

et al. 2019

iForest

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“…A sturdiness quotient of less than 6 has been recommended as a desired characteristic of high-quality seedlings in tropical systems (Jaenicke 1999). Previous studies by several researchers have also found sturdiness quotient to correlate with seedling survival rate and initial growth following outplanting (Mexal and Landis 1990;Ivetić et al 2017). According to Takoutsing et al (2014), seedlings with sturdiness ratio greater than six were basically tall and thin (lanky) and etiolated, whereas a small quotient indicates sturdy plants with a higher chance of survival, particularly on windy or dry sites.…”

Section: Discussionmentioning

confidence: 75%

Influences of inorganic and organic fertilizers to morphological quality attributes of Shorea macrophylla seedlings in a tropical nursery

2019

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Abstract. Perumal M, Wasli ME, Ho SY. 2019. Influences of inorganic and organic fertilizers to morphological quality attributes of Shorea macrophylla seedlings in a tropical nursery. Biodiversitas 20: 2110-2118. Better understanding and implementation of nursery cultural regimes to improve seedling quality with high survival capability and optimal growth potential are one of the pivotal aspects of a successful forest restoration program. An experiment was set to determine the influences of inorganic and organic fertilizers on the morphological quality attributes of Shorea macrophylla (de Vriese) P.S. Ashton seedlings. For seedling production, the pots were filled with a 1:1 mixture of topsoil and sand (v:v), following the standard forest nursery practice. Either a chemical fertilizer (CF, N: P: K = 10: 26: 10) or a blend of 360-day (80% elution of the ingredients at 25°C) controlled-instant release fertilizer (CIRF, N: P: K = 10: 26: 10) or a jellyfish fertilizer (JF, N: P: K = 13.1: 1.7: 0.03) was applied at the rate of 5 g per pot. The findings revealed that the morphological quality attributes of S. macrophylla seedlings treated with JF were significantly higher (P < 0.05) than the seedlings treated with CF and CIRF at the end of nursery growing season. Notwithstanding, in terms of seedling quality indicators, seedlings from all the treatments were fit to the general expectations of a balanced root to shoot ratio values (RS < 2) and the seedlings raised in the nursery were of sub-optimal quality. Consequently, stock quality evaluation requires the integration of both morphological and physiological attributes of seedlings that provides a more effective appraisal of the fitness of seedlings to become established for field planting.

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“…While RCD is positively and significantly correlated with both survival and growth after seedlings planting at the field, seedlings height can have both, positive and negative effect on seedlings field survival and growth, as reviewed by Ivetić and Devetaković [50]. Their combination as the HD (height/RCD) ratio was the most reliable plant attribute to forecast Austrian pine seedlings field performance [4] and there is evidence that initial seedling height and RCD are equally related to the field performance [3]. Our results show a consistent effect of seed colour on seedlings field growth of height and RCD.…”

Section: Discussionmentioning

confidence: 96%

“…The success of forest establishment program, including afforestation, reforestation, and forest restoration [1,2] mainly depends on the quality of Forest Reproductive Material (FRM), i.e., seedlings [3,4] and seeds [5]. FRM is often subjected to transfer and trade [6,7], emphasizing the genetic component of FRM quality regarding the seed source [8] and genetic diversity of seed lot used for production of seedlings in nursery or for direct seeding on the field [9].…”

Section: Introductionmentioning

confidence: 99%

Performance of Scots Pine Seedlings from Seeds Graded by Colour

Novikov

Соколов

Drapalyuk

et al. 2019

Forests

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Research Highlights: One of the ways to improve the quality of a seedlot used in the forest nursery is the grading of seed by colour. Background and Objectives: The study is intended for forest’s engineers and owners because it offers an alternative solution for forest seeds improvement before sowing. The success of forest establishment program mainly depends on the quality of Forest Reproductive Material. At this time usual practices during the seed processing is seed grading on size. This causes a lot of controversy about the possible reduction of genetic diversity through directional selection. Materials and Methods: Aiming to study the effect of seed coat colour on seedling performance, a one-year old container seedlings of Pinus sylvestris L. were planted at the post-fire site. Seedlings were produced from three fractions, previously graded in the visible wavelength range on a standard optical separator, plus control obtained without separation by colour. Results: Seedlings from different seed fractions performed differently in the first growing season after planting on the field. Seedlings from light seed fraction grow better in height, but those from dark seed fraction resulted with the highest survival rate. Light-dark seeds, which constitute the largest group in the initial sample by absolute weight, resulted with seedlings of the lowest growth rates and survival. The good results showed by seedlings from the control, for both growth rates and survival, indicate the weak effect of seed colour grading on seedlings field performance, but also the need for the more comprehensive studies in the future.

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Forecasting the field performance of Austrian pine seedlings using morphological attributes

Cited by 41 publications

References 26 publications

Matching seedling size to planting conditions: interactive response with soil moisture

Matching seedling size to planting conditions: interactive response with soil moisture

Influences of inorganic and organic fertilizers to morphological quality attributes of Shorea macrophylla seedlings in a tropical nursery

Performance of Scots Pine Seedlings from Seeds Graded by Colour

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