scholarly journals Impact of Hymenoptera on Abelmoschus Esculentus (L.) Moench, 1794 (Malvaceae) Seed Yields at Bilone (Obala, Cameroon)

2017 ◽  
pp. 44-54
Author(s):  
Zenaida Gonzaga ◽  
Warren Obeda ◽  
Ana Linda Gorme ◽  
Jessie Rom ◽  
Oscar Abrantes ◽  
...  

Okra or Lady’s finger, botanically known as Abelmoschus esculentus (L.) Moench, is a tropical and sub-tropical indigenous vegetable crop commonly grown for its fibrous, slimy, and nutritious fruits and consumed by all classes of population. It has also several medicinal and economic values. Despite its many uses and potential value, its importance is under estimated, under-utilized, and considered a minor crop and little attention was paid to its improvement. The study was conducted to evaluate the effects of different planting densities and mulching materials on the growth and yield of okra grown in slightly sloping area in the marginal uplands in Sta. Rita, Samar, Philippines. A split-plot experiment was set up with planting density as main plot and the different mulching materials as the sub-plot which were: unmulched or bare soil, rice straw, rice hull, hagonoy and plastic mulch. Planting density did not significantly affect the growth and yield of okra. Regardless ofthe mulching materials used, mulched plants were taller and yielded higher compared to unmulched plants. Moreover, the use of plastic mulch resulted to the highest total fruit yield. The results indicate the potential of mulching in increasing yield and thus profitability of okra production under marginal upland conditions.


Author(s):  
A.J. Cresswell

This paper, as well as being a testimonial to the benefit the writer has received from the Grassland Association, shows how the knowledge of scientists has been used to increase lucerne seed yields by methods of growing resistant cultivars especially for seed production as opposed to growing for hay, silage or grazing. It shows how new cultivars can be multiplied quickly by growing two crops in one year, one in each hemisphere, by using low seeding rates, wide plant spacing and very good weed control. Increased flowering of the crop has been achieved by the use of boron and the choice of time of closing; better pollination has been achieved by the use of more efficient bees - two varieties of which have been imported from North America. Weed and insect pest control and the use of a desiccant at harvest are contributing to a four-fold increase in seed yield, which should double again soon,


Author(s):  
Monica Puspa Sari ◽  
Henricho Himawan ◽  
Rina Priastini Susilowati

Temephos 1% atau lebih dikenal dengan abate dulu efektif untuk penanganan larva nyamuk, khususnya larva Aedes aegypti yang merupakan vektor utama dari demam berdarah. Akan tetapi penggunaan yang terus menerus dan tidak terkontrol dapat menyebabkan terjadinya resistensi temephos. Tujuan dari penelitian ini adalah untuk mencari larvasida alami yang dapat digunakan sebagai alternatif atau pengganti temephos, salah satunya adalah buah okra. Penelitian ini merupakan penelitian eksperimental, dengan lima kali pengulangan dan konsentrasi masing-masing 1%,2%,4%,8%, dan 16%, kontrol negatif, dan temephos 1% sebagai kontrol positif, dan dilakukan pengamatan selama 24 jam untuk melihat jumlah kematian larva. Hasil percobaan serbuk buah okra dengan berbagai konsentrasi terhadap larva instar III Aedes aegypti menunjukkan hasil nilai LC50 sebesar 4,143% dan LC90 sebesar 12,778%. Serbuk buah okra dapat bertindak sebagai racun dan bersifat sebagai racun kontak bagi larva Aedes aegypti. Dapat disimpulkan bahwa dosis efektif serbuk buah okra untuk mematikan larva Aedes aegypti adalah 12,778 %. Kata kunci: Aedes aegypty, temephos 1%, larvasida, serbuk buah okra


1955 ◽  
Vol 47 (12) ◽  
pp. 559-563 ◽  
Author(s):  
Roderic E. Duller ◽  
J. S. Bubar ◽  
H. R. Fortmann ◽  
H. L. Carnahan

Crop Science ◽  
1983 ◽  
Vol 23 (6) ◽  
pp. 1133-1135 ◽  
Author(s):  
M. P. Kenna ◽  
C. M. Taliaferro ◽  
W. L. Richardson
Keyword(s):  

Crop Science ◽  
1983 ◽  
Vol 23 (2) ◽  
pp. 256-258 ◽  
Author(s):  
W. R. Kehr ◽  
D. K. Barnes ◽  
D. E. Brown ◽  
J. H. Elgin ◽  
E. L. Sorensen
Keyword(s):  

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