Production of plant growth substances by rhizosphere mycoflora of broad bean and cotton

1975 ◽  
Vol 17 (3) ◽  
pp. 175-181 ◽  
Author(s):  
Y. A. Youssef ◽  
A. T. Mankarios
Keyword(s):  
Plant Growth ◽  
Broad Bean ◽  
Growth Substances ◽  
Plant Growth Substances

Similarities between the effects of aphid infestation and cytokinin application on dark respiration and plant growth of legumes

1988 ◽  
Vol 66 (9) ◽  
pp. 1896-1900 ◽  
Author(s):  
C. D. B. Hawkins ◽  
M. I. Whitecross ◽  
M. J. Aston
Keyword(s):  
Plant Growth ◽  
Acyrthosiphon Pisum ◽  
Broad Bean ◽  
Dark Respiration ◽  
Aphid Species ◽  
Growth Substances ◽  
Respiratory Pathway ◽  
Aphid Infestation ◽  
Infested Plant ◽  
Plant Growth Substances

Cowpea (Vigna unguiculata (L.) Walp. cv. Caloona), broad bean (Vicia faba L. cv. Aquadulce), and garden pea (Pisum sativum L. cv. Victory Freezer) seedlings were infested with cowpea aphids (Aphis craccivora Koch) or pea aphids (Acyrthosiphon pisum (Harris)), both Homoptera: Aphididae, for 10 days and then infested host plant tissue was examined for foreign substances injected by the aphids. No foreign compound was detected in any of the aphid-infested plant tissues. Both aphid species were also assayed for plant growth substances, utilizing the epinastic response of tomato (Lycopersicon esculentum Mill. cv. Roma Teardrop) seedlings, and both aphid species contained plant growth substances in concentrations higher than plant physiological concentrations. Broad bean and pea seedlings were also treated with foliar and root applications of 6-benzylaminopurine to determine if there were any similarities in plant growth or respiratory responses, following aphid infestation or 6-benzylaminopurine treatment. Root respiration in 6-benzylaminopurine treated plants decreased while shoot respiration increased in a response analogous to that observed for aphid-infested tissue. However, the alternative respiratory pathway was engaged for all 6-benzylaminopurine treatments, whereas in aphid-infested plant roots and shoots it was not. Both 6-benzylaminopurine treated and aphid-infested plants displayed a loss of apical dominance. These data suggest that part of the physiological response of the plant to aphid feeding is induced by changes in the cytokinin to auxin ratio.

scholarly journals Pengaruh Konsentrasi Zat Pengatur Tumbuh dan Bagian Asal Bibit Terhadap Pertumbuhan Vegetatif Pembibitan Tebu

2021 ◽  
pp. 47-56
Author(s):  
Oki Puspita Wardani ◽  
Priyadi Priyadi ◽  
Yatmin Yatmin
Keyword(s):  
Plant Growth ◽  
Block Design ◽  
Growth Substances ◽  
Randomized Block Design ◽  
Seed Growth ◽  
Two Factors ◽  
Seed Origin ◽  
Plant Growth Substances

This study was conducted on Pujodadi Village, Trimurjo, Central Lampung from September to December 2020. The study used a factorial randomized block design with two factors and three replications. The first factor is concentration of plant growth substances which consists of 5 levels; Z0 (0 ml.lt-1), Z1 (3.5 ml.lt-1), Z2 (7 ml.lt-1), Z3 (10.5 ml.lt-1) and Z4 (14 ml.lt-1). The second factor is the origin of the seed consists of three parts; P1 (top), P2 (middle), and P3 (bottom). The research objective was to study the effect of plant growth substances concentration and part of seed origin in sugarcane seedlings. The results showed that the plant growth substances concentration significantly increased the percentage of growth and the time 50% of the seeds sprouted. The seed origin of the top part showed the best growth compared to the middle and bottom. There was no interaction between plant growth substances concentration and seed origin on sugarcane seed growth.

scholarly journals Effects of Plant Growth Substances on Biomass and Lipid Production in Diatoms

2013 ◽  
pp. 452-455
Author(s):  
Zhiguo Ju ◽  
Lixiao Ding ◽  
Kangjun Li ◽  
Zhen Ding ◽  
Qingna Zhang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Lipid Production ◽  
Growth Substances ◽  
Plant Growth Substances
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