Survival and Yields of Fall-planted Winter Sprouting Broccoli Grown in High Tunnels for Spring Harvest in the Northeastern United States

Martin, C.; Sideman, Rebecca Grube

doi:10.21273/horttech.22.3.345

Cited by 3 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ''feel method'' was used to determine soil water content, and plants were irrigated when soil formed a weak ball and was estimated to be 60% deficit in water (Martin, 2009). When temperatures began to consistently drop below freezing, a single layer of Agribon+ AG-19 rowcover (Polymer Group, Inc., San Luis Potosí, M exico) was suspended 0.9 m above the crop as is typically practiced by regional spinach producers (Blomgren and Frisch, 2007) and to reduce mortality in the winter production of other vegetable crops (Martin and Sideman, 2012). Rowcover was applied on 6 Nov. 2014 and 14 Dec. 2015 and was left in place throughout the winter except for temporary removal during harvest.…”

Section: Cultural Practicesmentioning

confidence: 99%

Yield and Soluble Solids Content of Winter-grown Spinach in Unheated High Tunnels in New England

Orde¹,

Eaton²,

Sideman³

2018

horts

View full text Add to dashboard Cite

Fall planting of spinach (Spinacia oleracea L.) into high tunnels for harvest from late fall through early spring is widely practiced in the northeastern United States, but replicated studies focusing on this production system are lacking. The objectives of our study were to understand the effect of fall planting date (PD) and cultivar on yield and soluble solids content (SSC) of spinach. Three cultivars (Regiment, Space, and Tyee) were transplanted in unheated high tunnels in Durham, NH, in 2014–15 (Year 1) and 2015–16 (Year 2) at six different fall dates: 20 Sept., 30 Sept., 9 Oct., 19 Oct., 30 Oct., and 9 Nov. Five additional cultivars (Carmel, Corvair, Gazelle, Emperor, and Renegade) were included at the third date (9 Oct.) to compare yield and SSC among cultivars during winter months. A randomized complete block design with four replications was used for all experiments. Year and fall transplant date had a significant effect on total yield. Total yield of Year 2 was nearly double that of Year 1 for all PDs and cultivars. In both years, total yield decreased with later planting, such that yield from the 20 Sept. date was greater than a minimum of three of five subsequent PDs, depending on year. Total yield in spring (January through April) did not differ among the first four PDs in Year 1 or among any dates in Year 2, suggesting that a wide range of PDs will work well for those primarily interested in spring harvests. Combined analyses of the data from both years showed no significant differences in total yield among the eight cultivars planted only on 9 Oct. However, of the three cultivars grown at all PDs, Regiment produced significantly higher yields than Tyee. Harvest date, cultivar, and harvest date × cultivar affected leaf and petiole sap SSC in both years. SSC was most strongly negatively correlated with air and soil temperatures at a 10-day interval in Year 1 (R2 = 0.61 and 0.64, respectively) and a 7-day interval in Year 2 (R2 = 0.78 and 0.69, respectively). ‘Gazelle’ and ‘Emperor’ contained among the highest SSC in both years. Our work demonstrates total yield is highly dependent on fall PD and the growing conditions of a given year.

show abstract

Section: Cultural Practicesmentioning

confidence: 99%

Yield and Soluble Solids Content of Winter-grown Spinach in Unheated High Tunnels in New England

Orde¹,

Eaton²,

Sideman³

2018

horts

View full text Add to dashboard Cite

show abstract

“…italica) cultivation based on the use of lateral branches. Broccoli is roughly classified as a "sprouting" or "heading" type, depending on the degree of branching exhibited and the size of the inflorescences (Martin and Sideman, 2012). In the sprouting type, multiple smaller secondary heads are harvested instead of a single large head (Martin and Sideman, 2012;Reilly et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Broccoli is roughly classified as a "sprouting" or "heading" type, depending on the degree of branching exhibited and the size of the inflorescences (Martin and Sideman, 2012). In the sprouting type, multiple smaller secondary heads are harvested instead of a single large head (Martin and Sideman, 2012;Reilly et al, 2014). In the heading type, only the apical (central) large head is usually harvested (Erdem et al, 2010;Jett et al, 1995;Tremblay, 1989), but sometimes, lateral heads (small secondary heads) are subsequently harvested, enabling an increase in total yield (Bouquet, 1950;Singh et al, 2011;Stephens, 1994;Yoldas et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Competitive Biomass Allocation Between the Main Shoot and Lateral Branches of Broccoli (<i>Brassica oleracea</i> L. var. <i>italica</i>)

Takahashi

Sasaki

2019

Hortic J

View full text Add to dashboard Cite

The branching habit and stalk proportion of heading type broccoli (Brassica oleracea L. var. italica) differs based on the cultivar, but the extent of the effects of these factors on the apical head weight is unknown. The main objectives of this study were to elucidate the relationships between the apical head weight and the branching habit or the stalk proportion. Firstly, the shoots of broccoli from six cultivars were divided into four parts (apical head, leaves on the main stem, lateral branches, and the rest of the main stem), and the weight proportions of each part were investigated. The results showed that the cultivars showing higher branching tended to produce smaller apical heads. Furthermore, apical head weights showed a positive relationship with the area of the leaves on the main stem, but a negative relationship with those on the branches. Secondly, four cultivars were grown with lateral bud nipping. This significantly increased the apical head weight in the cultivars showing higher lateral branching, but did not significantly change the weight of the whole shoot. These results suggest competitive biomass allocation between the main shoot and lateral branches. The difference in the weight of lateral branches depended on the probability of axillary bud presence rather than on the number of internodes or weight per branch. Finally, a strong correlation between the apical head weights and the square of the stalk diameter was demonstrated by generalized linear models (R 2 = 0.95). These findings will contribute to the knowledge base on diverse methods of broccoli cultivation.

show abstract

Row Covers

Sideman

2017

A Guide to the Manufacture, Performance, and Potential of Plastics in Agriculture

View full text Add to dashboard Cite

Survival and Yields of Fall-planted Winter Sprouting Broccoli Grown in High Tunnels for Spring Harvest in the Northeastern United States

Cited by 3 publications

References 16 publications

Yield and Soluble Solids Content of Winter-grown Spinach in Unheated High Tunnels in New England

Yield and Soluble Solids Content of Winter-grown Spinach in Unheated High Tunnels in New England

Competitive Biomass Allocation Between the Main Shoot and Lateral Branches of Broccoli (<i>Brassica oleracea</i> L. var. <i>italica</i>)

Row Covers

Contact Info

Product

Resources

About