Adoption and perception of cover crop implementation for tropical fruit growers

Date palm is unisexual, being either male or female. Male and female flowers grow on buds called Spathe, which opens naturally when fully mature. It is easy to identify the male and female flowers. Under the method of manual pollination, pollen from a male flower is smeared over female flowers. The pollen variety and pollination time have important effects on date palm fruit set, yield and quality. This experiment was carried out to study the effect of date pollinizer variety and pollination time on fruit set, growth and development of Medjhol date palm variety, in date palm garden of date palm and tropical fruit research institute of Iran during three years from 2009 to 2011. The trail was randomized complete block design in factorial manner with three pollen variety as Ghaname, Vardy, and Samesmave, two pollination time as 1-3 days before or after spathe opening and four replication. The results showed that the Vardy pollen had significant effects and increased the fertility percent and fruit yield, rather than two other pollen varieties. The pollen variety had no significant effects on fruit quality as total sugar, acidity, and bricx. The pollination time before spathe opening significantly increased fertility percent, decreased fruit weight and date palm yield. Finally the pollen variety and pollination time interaction effects showed that, application of Vardy pollen from 1-3 days after spathe opening with the most production date palm yield, equal 19.9 kilogram per any date palm trees, so this treatment is the best and are recommended.

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Evaluasi Keragaan Beberapa Hibrida Semangka Koleksi Balai Penelitian Tanaman Buah Tropika

JURNAL BUDIDAYA PERTANIAN ◽

10.30598/jbdp.2019.15.2.101 ◽

2019 ◽

Vol 15 (2) ◽

pp. 101-105

Author(s):

Makful Makful ◽

Kuswandi Kuswandi ◽

Sahlan Sahlan ◽

Mega Andini

Keyword(s):

Skin Color ◽

Sweet Taste ◽

Fruit Weight ◽

Soluble Solids ◽

Hybrid Breeding ◽

Skin Thickness ◽

Tropical Fruit ◽

Total Soluble Solids ◽

Soluble Solid ◽

High Yielding Varieties

Hybrid breeding of watermelon has led to the formation of high-yielding varieties. The objectives of the research were to determine the performance of hybrid watermelon of the Indonesian Tropical Fruit Research Institute (ITFRI) collection and to evaluate the superiority of each hybrid. The research has been conducted at Sumani Experimental Garden, ITFRI, Solok, West Sumatera, from April to July 2016. The material used consisted of 19 cross combinations. The data from this descriptive study were presented in the form of averages and pictures. The results showed that the hybrids that were tested showed diversity in size, fruit skin color, flesh color, skin thickness and fruit sweetness. Hybrids with three excellent characters, i.e. medium fruit weight, high total soluble solids (TSS) value, and moderate rind thickness, were not yet obtained. Hybrids that had the superiority in term of sweet taste and shelf life were BT1 × SGP, BT4 × BT4P, BT5 × BT4, BT6 × SGP and SGP × BT6. Keywords: hybrid, performance, total soluble solids, watermelon ABSTRAK Pemuliaan hibrida pada semangka mengarah kepada pembentukan varietas berdaya hasil tinggi. Penelitian bertujuan untuk mengetahui keragaan hibrida semangka koleksi Balitbu Tropika dan untuk mengevaluasi keunggulan masing-masing hibrida Penelitian dilaksanakan di Kebun Percobaan Sumani, Balitbu Tropika, Solok, Sumatera Barat, dari bulan April sampai dengan Juli 2016. Materi yang digunakan terdiri dari 19 kombinasi persilangan. Data hasil penelitian deskriptif ini ditampilkan dalam bentuk rataan dan gambar. Hasil penelitian menunjukkan bahwa hibrida yang diuji memiliki keragaman dalam ukuran, warna kulit buah, warna daging buah, ketebalan kulit buah dan kemanisan. Belum ditemukan hibrida yang memiliki tiga karakter unggul, yang terdiri dari bobot buah sedang, total padatan terlarut (total soluble solid) tinggi, dan kulit buah agak tebal. Hibrida yang memiliki keunggulan berupa rasa manis dan tahan simpan adalah BT1 × SGP, BT4 × BT4P, BT5 × BT4, BT6 × SGP dan SGP × BT6. Kata kunci: hibrida, keragaan, semangka, total padatan terlarut

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FEATURES OF SALTS MIGRATION IN DELTAIC ECOSYSTEMS

Vestnik of the Russian agricultural science ◽

10.30850/vrsn/2018/6/28-29 ◽

1970 ◽

pp. 28-29

Author(s):

М. I. Dzhalalova ◽

P. А. Abdurashidova ◽

R. М. Zagidova

Keyword(s):

Cover Crop ◽

Groundwater Salinity ◽

Salt Composition ◽

Material Resource ◽

Aboveground Phytomass ◽

Soil Layers ◽

Material Energy ◽

Theoretical Foundations ◽

Pasture Plants ◽

Salinity Seawater

The coastal strip of the northwestern Caspian is characterized by hydromorphism and salinization processes which depending on the Caspian piled-up water, groundwater salinity, seawater, and salt composition of the underlying rocks. The migrational salts capability in deltoic ecosystem components in dynamic over the main representatives of pasture plants occurring in the Western Caspian and playing an important role in developing the theoretical foundations of a system of measures to increase the productivity of cover crop have studied. Salts migration from soil layers into plants which taking place in synthesis of material-energy and material resource of environment is one of the chains of bio-substrat links. The research results confirm the data that the ash elements stock in the ephemeral-absinthial group varies from 21.5 to 64.5 kg per 1 ha. The organogens prevail in them – 944 kg / ha, K is dominant, then Ca and Mg. The amount of halogens is 7.05 kg / ha, of which Cl portion includes 3.31 and Na – 2.80 kg / ha. In the ephemeral-absinthial group cenoses rather high values of aboveground phytomass are up to 50 centners / ha and the supply of ash elements (halogens 32.14 and organogens 36.18 mg-eq) is much higher compared to their content in soil (7.05 and 6, 31 mg-eq). In roots difference in quantity of organogens and halogens is insignificant – 2.03 and 2.04 mg-eq. We associate such differences with a greater proportion of absinthial in the aboveground phytomass composition

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Demonstrating Cover Crop Mixtures on Iowa Farmland:Management, Soil Health, and Water Quality Benefits

10.31274/farmprogressreports-180814-1933 ◽

2018 ◽

Author(s):

Mark Licht ◽

Liz Juchems ◽

Jacqueline Comito ◽

Matthew Helmers ◽

Sarah Carlson

Keyword(s):

Water Quality ◽

Cover Crop ◽

Soil Health

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Corn and Soybean Production with a Winter Rye Cover Crop

10.31274/farmprogressreports-180814-1858 ◽

2014 ◽

Author(s):

John E. Sawyer ◽

Jose L. Pantoja ◽

Daniel W. Barker

Keyword(s):

Cover Crop ◽

Winter Rye ◽

Soybean Production

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Corn and Soybean Production with a Winter Rye Cover Crop

10.31274/farmprogressreports-180814-1524 ◽

2013 ◽

Cited By ~ 1

Author(s):

John E. Sawyer ◽

Jose L. Pantoja ◽

Daniel W. Barker

Keyword(s):

Cover Crop ◽

Winter Rye ◽

Soybean Production

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Demonstrating Cover Crop Mixtures on Iowa Farmland: Management, Soil Health, and Water Quality Benefits

10.31274/farmprogressreports-180814-1409 ◽

2016 ◽

Author(s):

Mark Licht ◽

Liz Juchems ◽

Jacqueline Comito ◽

Matthew Helmers ◽

Sarah Carlson

Keyword(s):

Water Quality ◽

Cover Crop ◽

Soil Health

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Corn and Soybean Production with a Winter Rye Cover Crop

10.31274/farmprogressreports-180814-1552 ◽

2013 ◽

Author(s):

John E. Sawyer ◽

Jose L. Pantoja ◽

Daniel W. Barker

Keyword(s):

Cover Crop ◽

Winter Rye ◽

Soybean Production

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Evapotranspiration Measurement and Irrigation Scheduling for Several Tropical Fruit Crops Using the EnviroScan System

HortScience ◽

10.21273/hortsci.33.3.549f ◽

1998 ◽

Vol 33 (3) ◽

pp. 549f-550

Author(s):

Mongi Zekri ◽

Bruce Schaffer ◽

Stephen K. O'Hair ◽

Roberto Nunez-Elisea ◽

Jonathan H. Crane

Keyword(s):

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Water Use ◽

National Parks ◽

Quantitative Information ◽

Irrigation Scheduling ◽

Management Tool ◽

Fruit Crops ◽

Tropical Fruit

In southern Florida, most tropical fruit crops between Biscayne and Everglades National Parks are irrigated at rates and frequencies based on experience and observations of tree growth and fruit yield rather than on reliable quantitative information of actual water use. This approach suggests that irrigation rates may be excessive and could lead to leaching of agricultural chemicals into the groundwater in this environmentally sensitive area. Therefore, a study is being conducted to increase water use efficiency and optimize irrigation by accurately scheduling irrigation using a very effective management tool (EnviroScan, Sentek Environmental Innovations, Pty., Kent, Australia) that continuously monitors soil water content with highly accurate capacitance multi-sensor probes installed at several depths within the soil profile. The system measures crop water use by monitoring soil water depletion rates and allows the maintenance of soil water content within the optimum range (below field capacity and well above the onset of plant water stress). The study is being conducted in growers' orchards with three tropical fruit crops (avocado, carambola, and `Tahiti' lime) to facilitate rapid adoption and utilization of research results.

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