scholarly journals INFLUENCE OF DRIP IRRIGATION ON GROWTH AND YIELD OF COD X WCT COCONUT (COCOS NUCIFERA L.) HYBRID

CORD ◽  
2004 ◽  
Vol 20 (01) ◽  
pp. 34
Author(s):  
R. Dhanapal ◽  
H. P. Maheswarappa ◽  
P. Subramanian ◽  
Ajay Kumar Upadhyay
Keyword(s):  
Drip Irrigation ◽  
Cocos Nucifera ◽  
Female Flower ◽  
Nutrient Status ◽  
Growth And Yield ◽  
Leaf Production ◽  
Flower Production ◽  
Basin Irrigation ◽  
Cocos Nucifera L ◽  
Plantation Crops

A field experiment on drip irrigation for Chowghat Orange Dwarf X West Coast Tall (COD X WCT) coconut hybrid was conducted in laterite soil at Central Plantation Crops Research Institute, Kasaragod (Kerala, India) to study the drip irrigation requirement and its influence on growth and yield.  The treatments included were three levels of drip irrigation (at 33, 66 and 100% E0 daily), basin irrigation  (100%  E0)  and  rainfed  control.     The  experimental  results  revealed  that  annual  leaf production and leaf nutrient status of coconut palm was significantly higher in the irrigated treatments compared to the rainfed control. The female flower production and nut yield with 66 per cent of Eo was on par with 100 per cent of Eo through drip and 100 per cent of Eo through basin irrigation and significantly  superior  compared  to drip irrigation  at 33 per cent of E0  and rainfed  control.   Drip irrigation equal to 66 per cent of open pan evaporation (Eo) proved to be the economically efficient method of irrigation with water saving of 34 per cent compared to 100 per cent of Eo through basin and drip method.

scholarly journals INFLUENCE OF DRIP IRRIGATION ON GROWTH AND YIELD OF COD X WCT COCONUT (COCOS NUCIFERA L.) HYBRID

CORD ◽  
2003 ◽  
Vol 19 (02) ◽  
pp. 34
Author(s):  
R. Dhanapal ◽  
H. P. Maheswarappa ◽  
P. Subramanian ◽  
Ajay Kumar Upadhyay
Keyword(s):  
Drip Irrigation ◽  
Cocos Nucifera ◽  
Female Flower ◽  
Nutrient Status ◽  
Growth And Yield ◽  
Leaf Production ◽  
Flower Production ◽  
Basin Irrigation ◽  
Cocos Nucifera L ◽  
Plantation Crops

A field experiment on drip irrigation for Chowghat Orange Dwarf X West Coast Tall (COD X WCT) coconut hybrid was conducted in laterite soil at Central Plantation Crops Research Institute, Kasaragod (Kerala, India) to study the drip irrigation requirement and its influence on growth and yield.  The treatments included were three levels of drip irrigation (at 33, 66 and 100% E0 daily), basin irrigation (100% E0) and rainfed control.  The experimental results revealed that annual leaf production and leaf nutrient status of coconut palm was significantly higher in the irrigated treatments compared to the rainfed control. The female flower production and nut yield with 66 per cent of Eo was on par with 100 per cent of Eo through drip and 100 per cent of Eo through basin irrigation and significantly superior compared to drip irrigation at 33 per cent of E0 and rainfed control.  Drip irrigation equal to 66 per cent of open pan evaporation (Eo) proved to be the economically efficient method of irrigation with water saving of 34 per cent compared to 100 per cent of Eo through basin and drip method. 

scholarly journals INFLUENCE OF DRIP IRRIGATION ON GROWTH, NUT CHARACTERS AND YIELD OF COCONUT IN LITTORAL SANDY SOIL

CORD ◽  
2002 ◽  
Vol 18 (02) ◽  
pp. 34
Author(s):  
R. Dhanapal ◽  
H.P. Maheswarappa ◽  
P. Subramanian
Keyword(s):  
Sandy Soil ◽  
Drip Irrigation ◽  
Nutrient Status ◽  
Leaf Production ◽  
Rainfed Condition ◽  
Main Plot ◽  
Basin Irrigation ◽  
Plantation Crops ◽  
The Impact ◽  
Irrigation Levels

A field experiment was conducted at Central Plantation Crops Research Institute, Kasaragod, India for six years (1993-1999) to study the impact of drip irrigation levels and mulching on coconut in littoral sandy soil.  The treatments consisted of three levels of drip irrigation (66, 100, and 133 % of open pan evaporation (E0)) along with basin irrigation (100 % of E0) and rainfed control as main plot treatments and mulching with coconut leaves and no mulching as sub plot treatments.  The experimental results revealed that annual leaf production and leaf nutrient status of coconut was better in the irrigated treatments compared to the rainfed control.  The drip irrigation at 66 per cent of E0 (27 litres of water per palm per day during December-January months and 32 litres of water per palm per day during February-May months) resulted in water saving and the nut yield was on par with 100 per cent and 133 per cent of E0 through drip and 100 per cent of E0 through basin irrigation and differed significantly compared to rainfed control.  The nut characters like nut weight, husk weight, copra thickness, copra content and copra yield was superior under irrigated treatments compared to rainfed control.  The copra yield was 499 kg per ha under rainfed condition, where as it was 2087 to 2202 kg per ha under irrigated treatments.  Irrigation along with mulching with coconut leaves resulted in significantly higher nut yields.

Fertilizer Responses by Coconuts (Cocos nucifera) on Two Contrasting Jamaican Soils

1969 ◽  
Vol 5 (2) ◽  
pp. 133-145 ◽  
Author(s):  
R. W. Smith
Keyword(s):  
Production Rate ◽  
Divalent Cations ◽  
Cocos Nucifera ◽  
Female Flower ◽  
Nutrient Requirements ◽  
Critical Levels ◽  
Flower Production ◽  
Foliar N ◽  
K Deficiency ◽  
Major Nutrients

SummaryThe results from a 33 and two 25 factorial fertilizer experiments are presented. N-deficiency limited female flower production, rate of bunch production, and yield; K-deficiency reduced the setting of flowers and yield; nuts were larger where P was applied. The results are interpreted in the light of foliar analyses, and the concept of independant critical levels of the major nutrients is challenged. It is suggested that yield is related to the ratios between foliar N and K, but that the K level should in turn be interpreted in the light of a balance between the monovalent and divalent cations. Female flower production and setting can be used as a ready field guide to nutrient requirements.

The growth of the young coconut palm (Cocos nucifera L.). I. The role of the seed and of photosynthesis in seedling growth up to 17 months of age

1968 ◽  
Vol 19 (5) ◽  
pp. 781 ◽  
Author(s):  
MA Foale
Keyword(s):  
Cocos Nucifera ◽  
Gradual Change ◽  
Leaf Production ◽  
Relative Growth ◽  
Cultural Methods ◽  
Relative Contribution ◽  
Exact Date ◽  
Net Assimilation ◽  
Cocos Nucifera L

The growth of coconut seedlings and the changes occurring within the seed were studied over a period of 17 months from the germination of the coconuts. Removal of the husk prior to germination made possible an estimate of the endosperm content of each seed and also permitted the exact date of germination to be observed. Seedlings were grown with a non-limiting supply of water and nutrients; 63 seedlings were harvested on each of 10 occasions to enable a growth analysis to be made. A high initial relative growth rate, arising through contributions by the endosperm, fell at 4 months to a level which remained roughly constant to 17 months. By 4 months the haustorium had reached its full size, but thereafter the relative contribution from the endosperm via the haustorium was much diminished. Between 4 and 15 months a gradual change over to full dependence on photosynthesis took place. By 17 months less than 10% of the endosperm remained in the nut. The rate of leaf production was constant with time, but the leaf area increased almost exponentially. There was some indication of a positive relationship between net assimilation rate and solar radiation. Some conclusions are drawn concerning cultural methods with young coconuts.

scholarly journals WEED CONTROL UNDERSTORY WEED MANAGEMENT IN COCONUT LANDS

CORD ◽  
1992 ◽  
Vol 8 (01) ◽  
pp. 34
Author(s):  
L. V. K. LIYANAGE ◽  
M. DE. S. LIYANAGE
Keyword(s):  
Weed Management ◽  
Cocos Nucifera ◽  
Canopy Structure ◽  
Growth And Yield ◽  
Weed Species ◽  
Weed Growth ◽  
Wide Range ◽  
Cocos Nucifera L ◽  
The Cost ◽  
Small Holder

Coconut (Cocos nucifera L.) is by far the most extensively cultivated plantation crop in Sri Lanka. It is essentially a small holder crop comprising about 86% of small. holdings and homesteads and the balance belonging to the estate sector. The growth habit of the palm and its canopy structure requires a wide, spacing between palms, which permits abundant sunlight to the understory. As a result, the unutilised space beneath the plantation becomes invaded by a wide range of perennial and annual weed species. Such weeds invariably compete with coconut for soil moisture and nutrients, affecting its growth and yield and obstructing routine estate practices. Management of the understory weed growth is, therefore, considered an essential step in maintaining the plantation. In fact, the cost of weeding accounts for a substantial proportion of the total recurrent expenditure for maintenance.

scholarly journals Produksi dan Kualitas Buah Stroberi pada Beberapa Sistem Irigasi

2016 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Slamet Susanto ◽  
Bhayu Hartanti ◽  
Nurul Khumaida
Keyword(s):  
Fruit Quality ◽  
Drip Irrigation ◽  
Irrigation System ◽  
Fruit Production ◽  
Growth And Yield ◽  
Irrigation Systems ◽  
Flower Production ◽  
Randomized Design ◽  
Completely Randomized Design

<p>ABSTRACT</p><p><br />The objectives of this research was to study the fruit production and quality of strawberry grown under different irrigation system. The trial was arranged in a completely randomized design. Four irrigation systems were examined: drip irrigation applied daily, drip irrigation applied every 2 days, manual irrigation applied daily and manual irrigation applied every 2 days . The result showed that the treatments gave significant effects on vegetative growth. Plants irrigated daily produced more runn er than those irrigated every 2 days. Plants irrigated manually every 2 days lowered flower production. The drip irrigation applied daily gave the highest response on growth and yield without any difference on fruit quality. The system could be considered for hydroponic <br />strawberry production.</p><p>Key words: strawberry, irrigation, fruit production, fruit quality</p>

Growth of Dracaena marginata and Spathiphyllum ‘Petite’ in Sphagnum Peat- and Coconut Coir Dust-based Growing Media

1999 ◽  
Vol 17 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Robert H. Stamps ◽  
Michael R. Evans
Keyword(s):  
Growth Parameters ◽  
Cocos Nucifera ◽  
Greenhouse Production ◽  
Growing Media ◽  
Sphagnum Peat ◽  
Affected Plant ◽  
Coir Dust ◽  
Media Component ◽  
The Media ◽  
Cocos Nucifera L

Abstract A comparison was made of Canadian sphagnum peat (SP) and Philippine coconut (Cocos nucifera L.) coir dust (CD) as growing media components for greenhouse production of Dracaena marginata Bak. and Spathiphyllum Schott ‘Petite’. Three soilless foliage plant growing mixes (Cornell, Hybrid, University of Florida #2 [UF-2]) were prepared using either SP or CD and pine bark (PB), vermiculite (V), and/or perlite (P) in the following ratios (% by vol): Cornell = 50 CD or SP:25 V:25 P, Hybrid = 40 CD or SP:30 V:30 PB, UF-2 = 50 CD or SP: 50 PB. Dracaena root growth was not affected by treatments but there were significant mix × media component interactions that affected plant top growth parameters. In general, the growth and quality of D. marginata were reduced by using CD in Cornell, had no effect in Hybrid, and increased in UF-2. S. ‘Petite’ grew equally well in all growing mixes regardless of whether CD or SP was used; however, plants grew more in Cornell and Hybrid than in UF-2. S. ‘Petite’ roots, which were infested with Cylindrocladium spathiphylli, had higher grades when grown in CD than when the media contained SP.

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